diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/nvim/api/ui.c | 3 | ||||
| -rw-r--r-- | src/nvim/bufwrite.c | 1927 | ||||
| -rw-r--r-- | src/nvim/bufwrite.h | 11 | ||||
| -rw-r--r-- | src/nvim/diff.c | 1 | ||||
| -rw-r--r-- | src/nvim/drawline.c | 1 | ||||
| -rw-r--r-- | src/nvim/eval/funcs.c | 6 | ||||
| -rw-r--r-- | src/nvim/eval/userfunc.c | 8 | ||||
| -rw-r--r-- | src/nvim/ex_cmds.c | 1 | ||||
| -rw-r--r-- | src/nvim/ex_cmds2.c | 1 | ||||
| -rw-r--r-- | src/nvim/fileio.c | 1928 | ||||
| -rw-r--r-- | src/nvim/fileio.h | 23 | ||||
| -rw-r--r-- | src/nvim/log.c | 2 | ||||
| -rw-r--r-- | src/nvim/lua/executor.c | 3 | ||||
| -rw-r--r-- | src/nvim/macros.h | 2 | ||||
| -rw-r--r-- | src/nvim/memline.c | 4 | ||||
| -rw-r--r-- | src/nvim/msgpack_rpc/unpacker.c | 3 | ||||
| -rw-r--r-- | src/nvim/normal.c | 3 | ||||
| -rw-r--r-- | src/nvim/option.c | 3 | ||||
| -rw-r--r-- | src/nvim/os/os_defs.h | 14 | ||||
| -rw-r--r-- | src/nvim/os/pty_process_win.c | 6 | ||||
| -rw-r--r-- | src/nvim/path.c | 5 | ||||
| -rw-r--r-- | src/nvim/path.h | 1 | ||||
| -rw-r--r-- | src/nvim/plines.c | 3 | ||||
| -rw-r--r-- | src/nvim/regexp.c | 12 | ||||
| -rw-r--r-- | src/nvim/regexp.h | 1 | ||||
| -rw-r--r-- | src/nvim/regexp_bt.c | 5 | ||||
| -rw-r--r-- | src/nvim/regexp_nfa.c | 7 | ||||
| -rw-r--r-- | src/nvim/runtime.c | 5 | ||||
| -rw-r--r-- | src/nvim/tui/tui.c | 3 | ||||
| -rw-r--r-- | src/uncrustify.cfg | 233 |
30 files changed, 2213 insertions, 2012 deletions
diff --git a/src/nvim/api/ui.c b/src/nvim/api/ui.c index edf13b073c..bd3482c85f 100644 --- a/src/nvim/api/ui.c +++ b/src/nvim/api/ui.c @@ -254,7 +254,8 @@ void nvim_ui_detach(uint64_t channel_id, Error *err) // TODO(bfredl): use me to detach a specific ui from the server void remote_ui_stop(UI *ui) -{} +{ +} void nvim_ui_try_resize(uint64_t channel_id, Integer width, Integer height, Error *err) FUNC_API_SINCE(1) FUNC_API_REMOTE_ONLY diff --git a/src/nvim/bufwrite.c b/src/nvim/bufwrite.c new file mode 100644 index 0000000000..89d63a39d5 --- /dev/null +++ b/src/nvim/bufwrite.c @@ -0,0 +1,1927 @@ +// This is an open source non-commercial project. Dear PVS-Studio, please check +// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com + +// bufwrite.c: functions for writing a buffer + +#include <fcntl.h> +#include <iconv.h> +#include <inttypes.h> +#include <stdbool.h> +#include <stdio.h> +#include <string.h> +#include <sys/stat.h> +#include <uv.h> + +#include "auto/config.h" +#include "nvim/ascii.h" +#include "nvim/autocmd.h" +#include "nvim/buffer.h" +#include "nvim/buffer_defs.h" +#include "nvim/bufwrite.h" +#include "nvim/change.h" +#include "nvim/drawscreen.h" +#include "nvim/eval.h" +#include "nvim/eval/typval_defs.h" +#include "nvim/ex_cmds.h" +#include "nvim/ex_cmds_defs.h" +#include "nvim/ex_eval.h" +#include "nvim/fileio.h" +#include "nvim/gettext.h" +#include "nvim/globals.h" +#include "nvim/highlight_defs.h" +#include "nvim/iconv.h" +#include "nvim/input.h" +#include "nvim/macros.h" +#include "nvim/mbyte.h" +#include "nvim/memline.h" +#include "nvim/memory.h" +#include "nvim/message.h" +#include "nvim/option.h" +#include "nvim/os/fs_defs.h" +#include "nvim/os/input.h" +#include "nvim/os/os.h" +#include "nvim/path.h" +#include "nvim/pos.h" +#include "nvim/sha256.h" +#include "nvim/strings.h" +#include "nvim/types.h" +#include "nvim/ui.h" +#include "nvim/undo.h" +#include "nvim/vim.h" + +static char *err_readonly = "is read-only (cannot override: \"W\" in 'cpoptions')"; +static const char e_no_matching_autocommands_for_buftype_str_buffer[] + = N_("E676: No matching autocommands for buftype=%s buffer"); + +typedef struct { + const char *num; + char *msg; + int arg; + bool alloc; +} Error_T; + +#define SMALLBUFSIZE 256 // size of emergency write buffer + +// Structure to pass arguments from buf_write() to buf_write_bytes(). +struct bw_info { + int bw_fd; // file descriptor + char *bw_buf; // buffer with data to be written + int bw_len; // length of data + int bw_flags; // FIO_ flags + uint8_t bw_rest[CONV_RESTLEN]; // not converted bytes + int bw_restlen; // nr of bytes in bw_rest[] + int bw_first; // first write call + char *bw_conv_buf; // buffer for writing converted chars + size_t bw_conv_buflen; // size of bw_conv_buf + int bw_conv_error; // set for conversion error + linenr_T bw_conv_error_lnum; // first line with error or zero + linenr_T bw_start_lnum; // line number at start of buffer + iconv_t bw_iconv_fd; // descriptor for iconv() or -1 +}; + +#ifdef INCLUDE_GENERATED_DECLARATIONS +# include "bufwrite.c.generated.h" +#endif + +/// Convert a Unicode character to bytes. +/// +/// @param c character to convert +/// @param[in,out] pp pointer to store the result at +/// @param flags FIO_ flags that specify which encoding to use +/// +/// @return true for an error, false when it's OK. +static bool ucs2bytes(unsigned c, char **pp, int flags) + FUNC_ATTR_NONNULL_ALL +{ + uint8_t *p = (uint8_t *)(*pp); + bool error = false; + + if (flags & FIO_UCS4) { + if (flags & FIO_ENDIAN_L) { + *p++ = (uint8_t)c; + *p++ = (uint8_t)(c >> 8); + *p++ = (uint8_t)(c >> 16); + *p++ = (uint8_t)(c >> 24); + } else { + *p++ = (uint8_t)(c >> 24); + *p++ = (uint8_t)(c >> 16); + *p++ = (uint8_t)(c >> 8); + *p++ = (uint8_t)c; + } + } else if (flags & (FIO_UCS2 | FIO_UTF16)) { + if (c >= 0x10000) { + if (flags & FIO_UTF16) { + // Make two words, ten bits of the character in each. First + // word is 0xd800 - 0xdbff, second one 0xdc00 - 0xdfff + c -= 0x10000; + if (c >= 0x100000) { + error = true; + } + int cc = (int)(((c >> 10) & 0x3ff) + 0xd800); + if (flags & FIO_ENDIAN_L) { + *p++ = (uint8_t)cc; + *p++ = (uint8_t)(cc >> 8); + } else { + *p++ = (uint8_t)(cc >> 8); + *p++ = (uint8_t)cc; + } + c = (c & 0x3ff) + 0xdc00; + } else { + error = true; + } + } + if (flags & FIO_ENDIAN_L) { + *p++ = (uint8_t)c; + *p++ = (uint8_t)(c >> 8); + } else { + *p++ = (uint8_t)(c >> 8); + *p++ = (uint8_t)c; + } + } else { // Latin1 + if (c >= 0x100) { + error = true; + *p++ = 0xBF; + } else { + *p++ = (uint8_t)c; + } + } + + *pp = (char *)p; + return error; +} + +static int buf_write_convert_with_iconv(struct bw_info *ip, char **bufp, int *lenp) +{ + const char *from; + size_t fromlen; + size_t tolen; + + int len = *lenp; + + // Convert with iconv(). + if (ip->bw_restlen > 0) { + // Need to concatenate the remainder of the previous call and + // the bytes of the current call. Use the end of the + // conversion buffer for this. + fromlen = (size_t)len + (size_t)ip->bw_restlen; + char *fp = ip->bw_conv_buf + ip->bw_conv_buflen - fromlen; + memmove(fp, ip->bw_rest, (size_t)ip->bw_restlen); + memmove(fp + ip->bw_restlen, *bufp, (size_t)len); + from = fp; + tolen = ip->bw_conv_buflen - fromlen; + } else { + from = *bufp; + fromlen = (size_t)len; + tolen = ip->bw_conv_buflen; + } + char *to = ip->bw_conv_buf; + + if (ip->bw_first) { + size_t save_len = tolen; + + // output the initial shift state sequence + (void)iconv(ip->bw_iconv_fd, NULL, NULL, &to, &tolen); + + // There is a bug in iconv() on Linux (which appears to be + // wide-spread) which sets "to" to NULL and messes up "tolen". + if (to == NULL) { + to = ip->bw_conv_buf; + tolen = save_len; + } + ip->bw_first = false; + } + + // If iconv() has an error or there is not enough room, fail. + if ((iconv(ip->bw_iconv_fd, (void *)&from, &fromlen, &to, &tolen) + == (size_t)-1 && ICONV_ERRNO != ICONV_EINVAL) + || fromlen > CONV_RESTLEN) { + ip->bw_conv_error = true; + return FAIL; + } + + // copy remainder to ip->bw_rest[] to be used for the next call. + if (fromlen > 0) { + memmove(ip->bw_rest, (void *)from, fromlen); + } + ip->bw_restlen = (int)fromlen; + + *bufp = ip->bw_conv_buf; + *lenp = (int)(to - ip->bw_conv_buf); + + return OK; +} + +static int buf_write_convert(struct bw_info *ip, char **bufp, int *lenp) +{ + int flags = ip->bw_flags; // extra flags + + if (flags & FIO_UTF8) { + // Convert latin1 in the buffer to UTF-8 in the file. + char *p = ip->bw_conv_buf; // translate to buffer + for (int wlen = 0; wlen < *lenp; wlen++) { + p += utf_char2bytes((uint8_t)(*bufp)[wlen], p); + } + *bufp = ip->bw_conv_buf; + *lenp = (int)(p - ip->bw_conv_buf); + } else if (flags & (FIO_UCS4 | FIO_UTF16 | FIO_UCS2 | FIO_LATIN1)) { + unsigned c; + int n = 0; + // Convert UTF-8 bytes in the buffer to UCS-2, UCS-4, UTF-16 or + // Latin1 chars in the file. + // translate in-place (can only get shorter) or to buffer + char *p = flags & FIO_LATIN1 ? *bufp : ip->bw_conv_buf; + for (int wlen = 0; wlen < *lenp; wlen += n) { + if (wlen == 0 && ip->bw_restlen != 0) { + // Use remainder of previous call. Append the start of + // buf[] to get a full sequence. Might still be too + // short! + int l = MIN(*lenp, CONV_RESTLEN - ip->bw_restlen); + memmove(ip->bw_rest + ip->bw_restlen, *bufp, (size_t)l); + n = utf_ptr2len_len((char *)ip->bw_rest, ip->bw_restlen + l); + if (n > ip->bw_restlen + *lenp) { + // We have an incomplete byte sequence at the end to + // be written. We can't convert it without the + // remaining bytes. Keep them for the next call. + if (ip->bw_restlen + *lenp > CONV_RESTLEN) { + return FAIL; + } + ip->bw_restlen += *lenp; + break; + } + if (n > 1) { + c = (unsigned)utf_ptr2char((char *)ip->bw_rest); + } else { + c = ip->bw_rest[0]; + } + if (n >= ip->bw_restlen) { + n -= ip->bw_restlen; + ip->bw_restlen = 0; + } else { + ip->bw_restlen -= n; + memmove(ip->bw_rest, ip->bw_rest + n, + (size_t)ip->bw_restlen); + n = 0; + } + } else { + n = utf_ptr2len_len(*bufp + wlen, *lenp - wlen); + if (n > *lenp - wlen) { + // We have an incomplete byte sequence at the end to + // be written. We can't convert it without the + // remaining bytes. Keep them for the next call. + if (*lenp - wlen > CONV_RESTLEN) { + return FAIL; + } + ip->bw_restlen = *lenp - wlen; + memmove(ip->bw_rest, *bufp + wlen, + (size_t)ip->bw_restlen); + break; + } + if (n > 1) { + c = (unsigned)utf_ptr2char(*bufp + wlen); + } else { + c = (uint8_t)(*bufp)[wlen]; + } + } + + if (ucs2bytes(c, &p, flags) && !ip->bw_conv_error) { + ip->bw_conv_error = true; + ip->bw_conv_error_lnum = ip->bw_start_lnum; + } + if (c == NL) { + ip->bw_start_lnum++; + } + } + if (flags & FIO_LATIN1) { + *lenp = (int)(p - *bufp); + } else { + *bufp = ip->bw_conv_buf; + *lenp = (int)(p - ip->bw_conv_buf); + } + } + + if (ip->bw_iconv_fd != (iconv_t)-1) { + if (buf_write_convert_with_iconv(ip, bufp, lenp) == FAIL) { + return FAIL; + } + } + + return OK; +} + +/// Call write() to write a number of bytes to the file. +/// Handles 'encoding' conversion. +/// +/// @return FAIL for failure, OK otherwise. +static int buf_write_bytes(struct bw_info *ip) +{ + char *buf = ip->bw_buf; // data to write + int len = ip->bw_len; // length of data + int flags = ip->bw_flags; // extra flags + + // Skip conversion when writing the BOM. + if (!(flags & FIO_NOCONVERT)) { + if (buf_write_convert(ip, &buf, &len) == FAIL) { + return FAIL; + } + } + + if (ip->bw_fd < 0) { + // Only checking conversion, which is OK if we get here. + return OK; + } + int wlen = (int)write_eintr(ip->bw_fd, buf, (size_t)len); + return (wlen < len) ? FAIL : OK; +} + +/// Check modification time of file, before writing to it. +/// The size isn't checked, because using a tool like "gzip" takes care of +/// using the same timestamp but can't set the size. +static int check_mtime(buf_T *buf, FileInfo *file_info) +{ + if (buf->b_mtime_read != 0 + && time_differs(file_info, buf->b_mtime_read, buf->b_mtime_read_ns)) { + msg_scroll = true; // Don't overwrite messages here. + msg_silent = 0; // Must give this prompt. + // Don't use emsg() here, don't want to flush the buffers. + msg_attr(_("WARNING: The file has been changed since reading it!!!"), + HL_ATTR(HLF_E)); + if (ask_yesno(_("Do you really want to write to it"), true) == 'n') { + return FAIL; + } + msg_scroll = false; // Always overwrite the file message now. + } + return OK; +} + +/// Generate a BOM in "buf[4]" for encoding "name". +/// +/// @return the length of the BOM (zero when no BOM). +static int make_bom(char *buf_in, char *name) +{ + uint8_t *buf = (uint8_t *)buf_in; + int flags = get_fio_flags(name); + + // Can't put a BOM in a non-Unicode file. + if (flags == FIO_LATIN1 || flags == 0) { + return 0; + } + + if (flags == FIO_UTF8) { // UTF-8 + buf[0] = 0xef; + buf[1] = 0xbb; + buf[2] = 0xbf; + return 3; + } + char *p = (char *)buf; + (void)ucs2bytes(0xfeff, &p, flags); + return (int)((uint8_t *)p - buf); +} + +static int buf_write_do_autocmds(buf_T *buf, char **fnamep, char **sfnamep, char **ffnamep, + linenr_T start, linenr_T *endp, exarg_T *eap, bool append, + bool filtering, bool reset_changed, bool overwriting, bool whole, + const pos_T orig_start, const pos_T orig_end) +{ + linenr_T old_line_count = buf->b_ml.ml_line_count; + int msg_save = msg_scroll; + + aco_save_T aco; + bool did_cmd = false; + bool nofile_err = false; + bool empty_memline = buf->b_ml.ml_mfp == NULL; + bufref_T bufref; + + char *sfname = *sfnamep; + + // Apply PRE autocommands. + // Set curbuf to the buffer to be written. + // Careful: The autocommands may call buf_write() recursively! + bool buf_ffname = *ffnamep == buf->b_ffname; + bool buf_sfname = sfname == buf->b_sfname; + bool buf_fname_f = *fnamep == buf->b_ffname; + bool buf_fname_s = *fnamep == buf->b_sfname; + + // Set curwin/curbuf to buf and save a few things. + aucmd_prepbuf(&aco, buf); + set_bufref(&bufref, buf); + + if (append) { + did_cmd = apply_autocmds_exarg(EVENT_FILEAPPENDCMD, sfname, sfname, false, curbuf, eap); + if (!did_cmd) { + if (overwriting && bt_nofilename(curbuf)) { + nofile_err = true; + } else { + apply_autocmds_exarg(EVENT_FILEAPPENDPRE, + sfname, sfname, false, curbuf, eap); + } + } + } else if (filtering) { + apply_autocmds_exarg(EVENT_FILTERWRITEPRE, + NULL, sfname, false, curbuf, eap); + } else if (reset_changed && whole) { + bool was_changed = curbufIsChanged(); + + did_cmd = apply_autocmds_exarg(EVENT_BUFWRITECMD, sfname, sfname, false, curbuf, eap); + if (did_cmd) { + if (was_changed && !curbufIsChanged()) { + // Written everything correctly and BufWriteCmd has reset + // 'modified': Correct the undo information so that an + // undo now sets 'modified'. + u_unchanged(curbuf); + u_update_save_nr(curbuf); + } + } else { + if (overwriting && bt_nofilename(curbuf)) { + nofile_err = true; + } else { + apply_autocmds_exarg(EVENT_BUFWRITEPRE, + sfname, sfname, false, curbuf, eap); + } + } + } else { + did_cmd = apply_autocmds_exarg(EVENT_FILEWRITECMD, sfname, sfname, false, curbuf, eap); + if (!did_cmd) { + if (overwriting && bt_nofilename(curbuf)) { + nofile_err = true; + } else { + apply_autocmds_exarg(EVENT_FILEWRITEPRE, + sfname, sfname, false, curbuf, eap); + } + } + } + + // restore curwin/curbuf and a few other things + aucmd_restbuf(&aco); + + // In three situations we return here and don't write the file: + // 1. the autocommands deleted or unloaded the buffer. + // 2. The autocommands abort script processing. + // 3. If one of the "Cmd" autocommands was executed. + if (!bufref_valid(&bufref)) { + buf = NULL; + } + if (buf == NULL || (buf->b_ml.ml_mfp == NULL && !empty_memline) + || did_cmd || nofile_err + || aborting()) { + if (buf != NULL && (cmdmod.cmod_flags & CMOD_LOCKMARKS)) { + // restore the original '[ and '] positions + buf->b_op_start = orig_start; + buf->b_op_end = orig_end; + } + + no_wait_return--; + msg_scroll = msg_save; + if (nofile_err) { + semsg(_(e_no_matching_autocommands_for_buftype_str_buffer), curbuf->b_p_bt); + } + + if (nofile_err + || aborting()) { + // An aborting error, interrupt or exception in the + // autocommands. + return FAIL; + } + if (did_cmd) { + if (buf == NULL) { + // The buffer was deleted. We assume it was written + // (can't retry anyway). + return OK; + } + if (overwriting) { + // Assume the buffer was written, update the timestamp. + ml_timestamp(buf); + if (append) { + buf->b_flags &= ~BF_NEW; + } else { + buf->b_flags &= ~BF_WRITE_MASK; + } + } + if (reset_changed && buf->b_changed && !append + && (overwriting || vim_strchr(p_cpo, CPO_PLUS) != NULL)) { + // Buffer still changed, the autocommands didn't work properly. + return FAIL; + } + return OK; + } + if (!aborting()) { + emsg(_("E203: Autocommands deleted or unloaded buffer to be written")); + } + return FAIL; + } + + // The autocommands may have changed the number of lines in the file. + // When writing the whole file, adjust the end. + // When writing part of the file, assume that the autocommands only + // changed the number of lines that are to be written (tricky!). + if (buf->b_ml.ml_line_count != old_line_count) { + if (whole) { // write all + *endp = buf->b_ml.ml_line_count; + } else if (buf->b_ml.ml_line_count > old_line_count) { // more lines + *endp += buf->b_ml.ml_line_count - old_line_count; + } else { // less lines + *endp -= old_line_count - buf->b_ml.ml_line_count; + if (*endp < start) { + no_wait_return--; + msg_scroll = msg_save; + emsg(_("E204: Autocommand changed number of lines in unexpected way")); + return FAIL; + } + } + } + + // The autocommands may have changed the name of the buffer, which may + // be kept in fname, ffname and sfname. + if (buf_ffname) { + *ffnamep = buf->b_ffname; + } + if (buf_sfname) { + *sfnamep = buf->b_sfname; + } + if (buf_fname_f) { + *fnamep = buf->b_ffname; + } + if (buf_fname_s) { + *fnamep = buf->b_sfname; + } + return NOTDONE; +} + +static void buf_write_do_post_autocmds(buf_T *buf, char *fname, exarg_T *eap, bool append, + bool filtering, bool reset_changed, bool whole) +{ + aco_save_T aco; + + curbuf->b_no_eol_lnum = 0; // in case it was set by the previous read + + // Apply POST autocommands. + // Careful: The autocommands may call buf_write() recursively! + aucmd_prepbuf(&aco, buf); + + if (append) { + apply_autocmds_exarg(EVENT_FILEAPPENDPOST, fname, fname, + false, curbuf, eap); + } else if (filtering) { + apply_autocmds_exarg(EVENT_FILTERWRITEPOST, NULL, fname, + false, curbuf, eap); + } else if (reset_changed && whole) { + apply_autocmds_exarg(EVENT_BUFWRITEPOST, fname, fname, + false, curbuf, eap); + } else { + apply_autocmds_exarg(EVENT_FILEWRITEPOST, fname, fname, + false, curbuf, eap); + } + + // restore curwin/curbuf and a few other things + aucmd_restbuf(&aco); +} + +static inline Error_T set_err_num(const char *num, const char *msg) +{ + return (Error_T){ .num = num, .msg = (char *)msg, .arg = 0 }; +} + +static inline Error_T set_err(const char *msg) +{ + return (Error_T){ .num = NULL, .msg = (char *)msg, .arg = 0 }; +} + +static inline Error_T set_err_arg(const char *msg, int arg) +{ + return (Error_T){ .num = NULL, .msg = (char *)msg, .arg = arg }; +} + +static void emit_err(Error_T *e) +{ + if (e->num != NULL) { + if (e->arg != 0) { + semsg("%s: %s%s: %s", e->num, IObuff, e->msg, os_strerror(e->arg)); + } else { + semsg("%s: %s%s", e->num, IObuff, e->msg); + } + } else if (e->arg != 0) { + semsg(e->msg, os_strerror(e->arg)); + } else { + emsg(e->msg); + } + if (e->alloc) { + xfree(e->msg); + } +} + +#if defined(UNIX) + +static int get_fileinfo_os(char *fname, FileInfo *file_info_old, bool overwriting, long *perm, + bool *device, bool *newfile, Error_T *err) +{ + *perm = -1; + if (!os_fileinfo(fname, file_info_old)) { + *newfile = true; + } else { + *perm = (long)file_info_old->stat.st_mode; + if (!S_ISREG(file_info_old->stat.st_mode)) { // not a file + if (S_ISDIR(file_info_old->stat.st_mode)) { + *err = set_err_num("E502", _("is a directory")); + return FAIL; + } + if (os_nodetype(fname) != NODE_WRITABLE) { + *err = set_err_num("E503", _("is not a file or writable device")); + return FAIL; + } + // It's a device of some kind (or a fifo) which we can write to + // but for which we can't make a backup. + *device = true; + *newfile = true; + *perm = -1; + } + } + return OK; +} + +#else + +static int get_fileinfo_os(char *fname, FileInfo *file_info_old, bool overwriting, long *perm, + bool *device, bool *newfile, Error_T *err) +{ + // Check for a writable device name. + char nodetype = fname == NULL ? NODE_OTHER : (char)os_nodetype(fname); + if (nodetype == NODE_OTHER) { + *err = set_err_num("E503", _("is not a file or writable device")); + return FAIL; + } + if (nodetype == NODE_WRITABLE) { + *device = true; + *newfile = true; + *perm = -1; + } else { + *perm = os_getperm(fname); + if (*perm < 0) { + *newfile = true; + } else if (os_isdir(fname)) { + *err = set_err_num("E502", _("is a directory")); + return FAIL; + } + if (overwriting) { + os_fileinfo(fname, file_info_old); + } + } + return OK; +} + +#endif + +/// @param buf +/// @param fname File name +/// @param overwriting +/// @param forceit +/// @param[out] file_info_old +/// @param[out] perm +/// @param[out] device +/// @param[out] newfile +/// @param[out] readonly +static int get_fileinfo(buf_T *buf, char *fname, bool overwriting, bool forceit, + FileInfo *file_info_old, long *perm, bool *device, bool *newfile, + bool *readonly, Error_T *err) +{ + if (get_fileinfo_os(fname, file_info_old, overwriting, perm, device, newfile, err) == FAIL) { + return FAIL; + } + + *readonly = false; // overwritten file is read-only + + if (!*device && !*newfile) { + // Check if the file is really writable (when renaming the file to + // make a backup we won't discover it later). + *readonly = !os_file_is_writable(fname); + + if (!forceit && *readonly) { + if (vim_strchr(p_cpo, CPO_FWRITE) != NULL) { + *err = set_err_num("E504", _(err_readonly)); + } else { + *err = set_err_num("E505", _("is read-only (add ! to override)")); + } + return FAIL; + } + + // If 'forceit' is false, check if the timestamp hasn't changed since reading the file. + if (overwriting && !forceit) { + int retval = check_mtime(buf, file_info_old); + if (retval == FAIL) { + return FAIL; + } + } + } + return OK; +} + +static int buf_write_make_backup(char *fname, bool append, FileInfo *file_info_old, vim_acl_T acl, + long perm, unsigned int bkc, bool file_readonly, bool forceit, + int *backup_copyp, char **backupp, Error_T *err) +{ + FileInfo file_info; + const bool no_prepend_dot = false; + + if ((bkc & BKC_YES) || append) { // "yes" + *backup_copyp = true; + } else if ((bkc & BKC_AUTO)) { // "auto" + // Don't rename the file when: + // - it's a hard link + // - it's a symbolic link + // - we don't have write permission in the directory + if (os_fileinfo_hardlinks(file_info_old) > 1 + || !os_fileinfo_link(fname, &file_info) + || !os_fileinfo_id_equal(&file_info, file_info_old)) { + *backup_copyp = true; + } else { + // Check if we can create a file and set the owner/group to + // the ones from the original file. + // First find a file name that doesn't exist yet (use some + // arbitrary numbers). + STRCPY(IObuff, fname); + for (int i = 4913;; i += 123) { + char *tail = path_tail(IObuff); + size_t size = (size_t)(tail - IObuff); + snprintf(tail, IOSIZE - size, "%d", i); + if (!os_fileinfo_link(IObuff, &file_info)) { + break; + } + } + int fd = os_open(IObuff, + O_CREAT|O_WRONLY|O_EXCL|O_NOFOLLOW, (int)perm); + if (fd < 0) { // can't write in directory + *backup_copyp = true; + } else { +#ifdef UNIX + os_fchown(fd, (uv_uid_t)file_info_old->stat.st_uid, (uv_gid_t)file_info_old->stat.st_gid); + if (!os_fileinfo(IObuff, &file_info) + || file_info.stat.st_uid != file_info_old->stat.st_uid + || file_info.stat.st_gid != file_info_old->stat.st_gid + || (long)file_info.stat.st_mode != perm) { + *backup_copyp = true; + } +#endif + // Close the file before removing it, on MS-Windows we + // can't delete an open file. + close(fd); + os_remove(IObuff); + } + } + } + + // Break symlinks and/or hardlinks if we've been asked to. + if ((bkc & BKC_BREAKSYMLINK) || (bkc & BKC_BREAKHARDLINK)) { +#ifdef UNIX + bool file_info_link_ok = os_fileinfo_link(fname, &file_info); + + // Symlinks. + if ((bkc & BKC_BREAKSYMLINK) + && file_info_link_ok + && !os_fileinfo_id_equal(&file_info, file_info_old)) { + *backup_copyp = false; + } + + // Hardlinks. + if ((bkc & BKC_BREAKHARDLINK) + && os_fileinfo_hardlinks(file_info_old) > 1 + && (!file_info_link_ok + || os_fileinfo_id_equal(&file_info, file_info_old))) { + *backup_copyp = false; + } +#endif + } + + // make sure we have a valid backup extension to use + char *backup_ext = *p_bex == NUL ? ".bak" : p_bex; + + if (*backup_copyp) { + int some_error = false; + + // Try to make the backup in each directory in the 'bdir' option. + // + // Unix semantics has it, that we may have a writable file, + // that cannot be recreated with a simple open(..., O_CREAT, ) e.g: + // - the directory is not writable, + // - the file may be a symbolic link, + // - the file may belong to another user/group, etc. + // + // For these reasons, the existing writable file must be truncated + // and reused. Creation of a backup COPY will be attempted. + char *dirp = p_bdir; + while (*dirp) { + // Isolate one directory name, using an entry in 'bdir'. + size_t dir_len = copy_option_part(&dirp, IObuff, IOSIZE, ","); + char *p = IObuff + dir_len; + bool trailing_pathseps = after_pathsep(IObuff, p) && p[-1] == p[-2]; + if (trailing_pathseps) { + IObuff[dir_len - 2] = NUL; + } + if (*dirp == NUL && !os_isdir(IObuff)) { + int ret; + char *failed_dir; + if ((ret = os_mkdir_recurse(IObuff, 0755, &failed_dir, NULL)) != 0) { + semsg(_("E303: Unable to create directory \"%s\" for backup file: %s"), + failed_dir, os_strerror(ret)); + xfree(failed_dir); + } + } + if (trailing_pathseps) { + // Ends with '//', Use Full path + if ((p = make_percent_swname(IObuff, fname)) + != NULL) { + *backupp = modname(p, backup_ext, no_prepend_dot); + xfree(p); + } + } + + char *rootname = get_file_in_dir(fname, IObuff); + if (rootname == NULL) { + some_error = true; // out of memory + goto nobackup; + } + + FileInfo file_info_new; + { + // + // Make the backup file name. + // + if (*backupp == NULL) { + *backupp = modname(rootname, backup_ext, no_prepend_dot); + } + + if (*backupp == NULL) { + xfree(rootname); + some_error = true; // out of memory + goto nobackup; + } + + // Check if backup file already exists. + if (os_fileinfo(*backupp, &file_info_new)) { + if (os_fileinfo_id_equal(&file_info_new, file_info_old)) { + // + // Backup file is same as original file. + // May happen when modname() gave the same file back (e.g. silly + // link). If we don't check here, we either ruin the file when + // copying or erase it after writing. + // + XFREE_CLEAR(*backupp); // no backup file to delete + } else if (!p_bk) { + // We are not going to keep the backup file, so don't + // delete an existing one, and try to use another name instead. + // Change one character, just before the extension. + // + char *wp = *backupp + strlen(*backupp) - 1 - strlen(backup_ext); + if (wp < *backupp) { // empty file name ??? + wp = *backupp; + } + *wp = 'z'; + while (*wp > 'a' && os_fileinfo(*backupp, &file_info_new)) { + (*wp)--; + } + // They all exist??? Must be something wrong. + if (*wp == 'a') { + XFREE_CLEAR(*backupp); + } + } + } + } + xfree(rootname); + + // Try to create the backup file + if (*backupp != NULL) { + // remove old backup, if present + os_remove(*backupp); + + // set file protection same as original file, but + // strip s-bit. + (void)os_setperm(*backupp, perm & 0777); + +#ifdef UNIX + // + // Try to set the group of the backup same as the original file. If + // this fails, set the protection bits for the group same as the + // protection bits for others. + // + if (file_info_new.stat.st_gid != file_info_old->stat.st_gid + && os_chown(*backupp, (uv_uid_t)-1, (uv_gid_t)file_info_old->stat.st_gid) != 0) { + os_setperm(*backupp, ((int)perm & 0707) | (((int)perm & 07) << 3)); + } +#endif + + // copy the file + if (os_copy(fname, *backupp, UV_FS_COPYFILE_FICLONE) != 0) { + *err = set_err(_("E509: Cannot create backup file (add ! to override)")); + XFREE_CLEAR(*backupp); + *backupp = NULL; + continue; + } + +#ifdef UNIX + os_file_settime(*backupp, + (double)file_info_old->stat.st_atim.tv_sec, + (double)file_info_old->stat.st_mtim.tv_sec); +#endif + os_set_acl(*backupp, acl); + *err = set_err(NULL); + break; + } + } + +nobackup: + if (*backupp == NULL && err->msg == NULL) { + *err = set_err(_("E509: Cannot create backup file (add ! to override)")); + } + // Ignore errors when forceit is true. + if ((some_error || err->msg != NULL) && !forceit) { + return FAIL; + } + *err = set_err(NULL); + } else { + // Make a backup by renaming the original file. + + // If 'cpoptions' includes the "W" flag, we don't want to + // overwrite a read-only file. But rename may be possible + // anyway, thus we need an extra check here. + if (file_readonly && vim_strchr(p_cpo, CPO_FWRITE) != NULL) { + *err = set_err_num("E504", _(err_readonly)); + return FAIL; + } + + // Form the backup file name - change path/fo.o.h to + // path/fo.o.h.bak Try all directories in 'backupdir', first one + // that works is used. + char *dirp = p_bdir; + while (*dirp) { + // Isolate one directory name and make the backup file name. + size_t dir_len = copy_option_part(&dirp, IObuff, IOSIZE, ","); + char *p = IObuff + dir_len; + bool trailing_pathseps = after_pathsep(IObuff, p) && p[-1] == p[-2]; + if (trailing_pathseps) { + IObuff[dir_len - 2] = NUL; + } + if (*dirp == NUL && !os_isdir(IObuff)) { + int ret; + char *failed_dir; + if ((ret = os_mkdir_recurse(IObuff, 0755, &failed_dir, NULL)) != 0) { + semsg(_("E303: Unable to create directory \"%s\" for backup file: %s"), + failed_dir, os_strerror(ret)); + xfree(failed_dir); + } + } + if (trailing_pathseps) { + // path ends with '//', use full path + if ((p = make_percent_swname(IObuff, fname)) + != NULL) { + *backupp = modname(p, backup_ext, no_prepend_dot); + xfree(p); + } + } + + if (*backupp == NULL) { + char *rootname = get_file_in_dir(fname, IObuff); + if (rootname == NULL) { + *backupp = NULL; + } else { + *backupp = modname(rootname, backup_ext, no_prepend_dot); + xfree(rootname); + } + } + + if (*backupp != NULL) { + // If we are not going to keep the backup file, don't + // delete an existing one, try to use another name. + // Change one character, just before the extension. + if (!p_bk && os_path_exists(*backupp)) { + p = *backupp + strlen(*backupp) - 1 - strlen(backup_ext); + if (p < *backupp) { // empty file name ??? + p = *backupp; + } + *p = 'z'; + while (*p > 'a' && os_path_exists(*backupp)) { + (*p)--; + } + // They all exist??? Must be something wrong! + if (*p == 'a') { + XFREE_CLEAR(*backupp); + } + } + } + if (*backupp != NULL) { + // Delete any existing backup and move the current version + // to the backup. For safety, we don't remove the backup + // until the write has finished successfully. And if the + // 'backup' option is set, leave it around. + + // If the renaming of the original file to the backup file + // works, quit here. + /// + if (vim_rename(fname, *backupp) == 0) { + break; + } + + XFREE_CLEAR(*backupp); // don't do the rename below + } + } + if (*backupp == NULL && !forceit) { + *err = set_err(_("E510: Can't make backup file (add ! to override)")); + return FAIL; + } + } + return OK; +} + +/// buf_write() - write to file "fname" lines "start" through "end" +/// +/// We do our own buffering here because fwrite() is so slow. +/// +/// If "forceit" is true, we don't care for errors when attempting backups. +/// In case of an error everything possible is done to restore the original +/// file. But when "forceit" is true, we risk losing it. +/// +/// When "reset_changed" is true and "append" == false and "start" == 1 and +/// "end" == curbuf->b_ml.ml_line_count, reset curbuf->b_changed. +/// +/// This function must NOT use NameBuff (because it's called by autowrite()). +/// +/// +/// @param eap for forced 'ff' and 'fenc', can be NULL! +/// @param append append to the file +/// +/// @return FAIL for failure, OK otherwise +int buf_write(buf_T *buf, char *fname, char *sfname, linenr_T start, linenr_T end, exarg_T *eap, + int append, int forceit, int reset_changed, int filtering) +{ + int retval = OK; + int msg_save = msg_scroll; + int prev_got_int = got_int; + // writing everything + int whole = (start == 1 && end == buf->b_ml.ml_line_count); + int write_undo_file = false; + context_sha256_T sha_ctx; + unsigned int bkc = get_bkc_value(buf); + + if (fname == NULL || *fname == NUL) { // safety check + return FAIL; + } + if (buf->b_ml.ml_mfp == NULL) { + // This can happen during startup when there is a stray "w" in the + // vimrc file. + emsg(_(e_emptybuf)); + return FAIL; + } + + // Disallow writing in secure mode. + if (check_secure()) { + return FAIL; + } + + // Avoid a crash for a long name. + if (strlen(fname) >= MAXPATHL) { + emsg(_(e_longname)); + return FAIL; + } + + // must init bw_conv_buf and bw_iconv_fd before jumping to "fail" + struct bw_info write_info; // info for buf_write_bytes() + write_info.bw_conv_buf = NULL; + write_info.bw_conv_error = false; + write_info.bw_conv_error_lnum = 0; + write_info.bw_restlen = 0; + write_info.bw_iconv_fd = (iconv_t)-1; + + // After writing a file changedtick changes but we don't want to display + // the line. + ex_no_reprint = true; + + // If there is no file name yet, use the one for the written file. + // BF_NOTEDITED is set to reflect this (in case the write fails). + // Don't do this when the write is for a filter command. + // Don't do this when appending. + // Only do this when 'cpoptions' contains the 'F' flag. + if (buf->b_ffname == NULL + && reset_changed + && whole + && buf == curbuf + && !bt_nofilename(buf) + && !filtering + && (!append || vim_strchr(p_cpo, CPO_FNAMEAPP) != NULL) + && vim_strchr(p_cpo, CPO_FNAMEW) != NULL) { + if (set_rw_fname(fname, sfname) == FAIL) { + return FAIL; + } + buf = curbuf; // just in case autocmds made "buf" invalid + } + + if (sfname == NULL) { + sfname = fname; + } + + // For Unix: Use the short file name whenever possible. + // Avoids problems with networks and when directory names are changed. + // Don't do this for Windows, a "cd" in a sub-shell may have moved us to + // another directory, which we don't detect. + char *ffname = fname; // remember full fname +#ifdef UNIX + fname = sfname; +#endif + +// true if writing over original + int overwriting = buf->b_ffname != NULL && path_fnamecmp(ffname, buf->b_ffname) == 0; + + no_wait_return++; // don't wait for return yet + + const pos_T orig_start = buf->b_op_start; + const pos_T orig_end = buf->b_op_end; + + // Set '[ and '] marks to the lines to be written. + buf->b_op_start.lnum = start; + buf->b_op_start.col = 0; + buf->b_op_end.lnum = end; + buf->b_op_end.col = 0; + + int res = buf_write_do_autocmds(buf, &fname, &sfname, &ffname, start, &end, eap, append, + filtering, reset_changed, overwriting, whole, orig_start, + orig_end); + if (res != NOTDONE) { + return res; + } + + if (cmdmod.cmod_flags & CMOD_LOCKMARKS) { + // restore the original '[ and '] positions + buf->b_op_start = orig_start; + buf->b_op_end = orig_end; + } + + if (shortmess(SHM_OVER) && !exiting) { + msg_scroll = false; // overwrite previous file message + } else { + msg_scroll = true; // don't overwrite previous file message + } + if (!filtering) { + // show that we are busy +#ifndef UNIX + filemess(buf, sfname, "", 0); +#else + filemess(buf, fname, "", 0); +#endif + } + msg_scroll = false; // always overwrite the file message now + + char *buffer = verbose_try_malloc(WRITEBUFSIZE); + int bufsize; + char smallbuf[SMALLBUFSIZE]; + // can't allocate big buffer, use small one (to be able to write when out of + // memory) + if (buffer == NULL) { + buffer = smallbuf; + bufsize = SMALLBUFSIZE; + } else { + bufsize = WRITEBUFSIZE; + } + + Error_T err = { 0 }; + long perm; // file permissions + bool newfile = false; // true if file doesn't exist yet + bool device = false; // writing to a device + bool file_readonly = false; // overwritten file is read-only + char *backup = NULL; + char *fenc_tofree = NULL; // allocated "fenc" + + // Get information about original file (if there is one). + FileInfo file_info_old; + + vim_acl_T acl = NULL; // ACL copied from original file to + // backup or new file + + if (get_fileinfo(buf, fname, overwriting, forceit, &file_info_old, &perm, &device, &newfile, + &file_readonly, &err) == FAIL) { + goto fail; + } + + // For systems that support ACL: get the ACL from the original file. + if (!newfile) { + acl = os_get_acl(fname); + } + + // If 'backupskip' is not empty, don't make a backup for some files. + bool dobackup = (p_wb || p_bk || *p_pm != NUL); + if (dobackup && *p_bsk != NUL && match_file_list(p_bsk, sfname, ffname)) { + dobackup = false; + } + + int backup_copy = false; // copy the original file? + + // Save the value of got_int and reset it. We don't want a previous + // interruption cancel writing, only hitting CTRL-C while writing should + // abort it. + prev_got_int = got_int; + got_int = false; + + // Mark the buffer as 'being saved' to prevent changed buffer warnings + buf->b_saving = true; + + // If we are not appending or filtering, the file exists, and the + // 'writebackup', 'backup' or 'patchmode' option is set, need a backup. + // When 'patchmode' is set also make a backup when appending. + // + // Do not make any backup, if 'writebackup' and 'backup' are both switched + // off. This helps when editing large files on almost-full disks. + if (!(append && *p_pm == NUL) && !filtering && perm >= 0 && dobackup) { + if (buf_write_make_backup(fname, append, &file_info_old, acl, perm, bkc, file_readonly, forceit, + &backup_copy, &backup, &err) == FAIL) { + retval = FAIL; + goto fail; + } + } + +#if defined(UNIX) + int made_writable = false; // 'w' bit has been set + + // When using ":w!" and the file was read-only: make it writable + if (forceit && perm >= 0 && !(perm & 0200) + && file_info_old.stat.st_uid == getuid() + && vim_strchr(p_cpo, CPO_FWRITE) == NULL) { + perm |= 0200; + (void)os_setperm(fname, (int)perm); + made_writable = true; + } +#endif + + // When using ":w!" and writing to the current file, 'readonly' makes no + // sense, reset it, unless 'Z' appears in 'cpoptions'. + if (forceit && overwriting && vim_strchr(p_cpo, CPO_KEEPRO) == NULL) { + buf->b_p_ro = false; + need_maketitle = true; // set window title later + status_redraw_all(); // redraw status lines later + } + + if (end > buf->b_ml.ml_line_count) { + end = buf->b_ml.ml_line_count; + } + if (buf->b_ml.ml_flags & ML_EMPTY) { + start = end + 1; + } + + char *wfname = NULL; // name of file to write to + + // If the original file is being overwritten, there is a small chance that + // we crash in the middle of writing. Therefore the file is preserved now. + // This makes all block numbers positive so that recovery does not need + // the original file. + // Don't do this if there is a backup file and we are exiting. + if (reset_changed && !newfile && overwriting + && !(exiting && backup != NULL)) { + ml_preserve(buf, false, !!p_fs); + if (got_int) { + err = set_err(_(e_interr)); + goto restore_backup; + } + } + + // Default: write the file directly. May write to a temp file for + // multi-byte conversion. + wfname = fname; + + char *fenc; // effective 'fileencoding' + + // Check for forced 'fileencoding' from "++opt=val" argument. + if (eap != NULL && eap->force_enc != 0) { + fenc = eap->cmd + eap->force_enc; + fenc = enc_canonize(fenc); + fenc_tofree = fenc; + } else { + fenc = buf->b_p_fenc; + } + + // Check if the file needs to be converted. + int converted = need_conversion(fenc); + int wb_flags = 0; + + // Check if UTF-8 to UCS-2/4 or Latin1 conversion needs to be done. Or + // Latin1 to Unicode conversion. This is handled in buf_write_bytes(). + // Prepare the flags for it and allocate bw_conv_buf when needed. + if (converted) { + wb_flags = get_fio_flags(fenc); + if (wb_flags & (FIO_UCS2 | FIO_UCS4 | FIO_UTF16 | FIO_UTF8)) { + // Need to allocate a buffer to translate into. + if (wb_flags & (FIO_UCS2 | FIO_UTF16 | FIO_UTF8)) { + write_info.bw_conv_buflen = (size_t)bufsize * 2; + } else { // FIO_UCS4 + write_info.bw_conv_buflen = (size_t)bufsize * 4; + } + write_info.bw_conv_buf = verbose_try_malloc(write_info.bw_conv_buflen); + if (!write_info.bw_conv_buf) { + end = 0; + } + } + } + + if (converted && wb_flags == 0) { + // Use iconv() conversion when conversion is needed and it's not done + // internally. + write_info.bw_iconv_fd = (iconv_t)my_iconv_open(fenc, "utf-8"); + if (write_info.bw_iconv_fd != (iconv_t)-1) { + // We're going to use iconv(), allocate a buffer to convert in. + write_info.bw_conv_buflen = (size_t)bufsize * ICONV_MULT; + write_info.bw_conv_buf = verbose_try_malloc(write_info.bw_conv_buflen); + if (!write_info.bw_conv_buf) { + end = 0; + } + write_info.bw_first = true; + } else { + // When the file needs to be converted with 'charconvert' after + // writing, write to a temp file instead and let the conversion + // overwrite the original file. + if (*p_ccv != NUL) { + wfname = vim_tempname(); + if (wfname == NULL) { // Can't write without a tempfile! + err = set_err(_("E214: Can't find temp file for writing")); + goto restore_backup; + } + } + } + } + + int notconverted = false; + + if (converted && wb_flags == 0 + && write_info.bw_iconv_fd == (iconv_t)-1 + && wfname == fname) { + if (!forceit) { + err = set_err(_("E213: Cannot convert (add ! to write without conversion)")); + goto restore_backup; + } + notconverted = true; + } + + int no_eol = false; // no end-of-line written + long nchars; + linenr_T lnum; + int fileformat; + int checking_conversion; + + int fd; + + // If conversion is taking place, we may first pretend to write and check + // for conversion errors. Then loop again to write for real. + // When not doing conversion this writes for real right away. + for (checking_conversion = true;; checking_conversion = false) { + // There is no need to check conversion when: + // - there is no conversion + // - we make a backup file, that can be restored in case of conversion + // failure. + if (!converted || dobackup) { + checking_conversion = false; + } + + if (checking_conversion) { + // Make sure we don't write anything. + fd = -1; + write_info.bw_fd = fd; + } else { + // Open the file "wfname" for writing. + // We may try to open the file twice: If we can't write to the file + // and forceit is true we delete the existing file and try to + // create a new one. If this still fails we may have lost the + // original file! (this may happen when the user reached his + // quotum for number of files). + // Appending will fail if the file does not exist and forceit is + // false. + const int fflags = O_WRONLY | (append + ? (forceit ? (O_APPEND | O_CREAT) : O_APPEND) + : (O_CREAT | O_TRUNC)); + const int mode = perm < 0 ? 0666 : (perm & 0777); + + while ((fd = os_open(wfname, fflags, mode)) < 0) { + // A forced write will try to create a new file if the old one + // is still readonly. This may also happen when the directory + // is read-only. In that case the mch_remove() will fail. + if (err.msg == NULL) { +#ifdef UNIX + FileInfo file_info; + + // Don't delete the file when it's a hard or symbolic link. + if ((!newfile && os_fileinfo_hardlinks(&file_info_old) > 1) + || (os_fileinfo_link(fname, &file_info) + && !os_fileinfo_id_equal(&file_info, &file_info_old))) { + err = set_err(_("E166: Can't open linked file for writing")); + } else { + err = set_err_arg(_("E212: Can't open file for writing: %s"), fd); + if (forceit && vim_strchr(p_cpo, CPO_FWRITE) == NULL && perm >= 0) { + // we write to the file, thus it should be marked + // writable after all + if (!(perm & 0200)) { + made_writable = true; + } + perm |= 0200; + if (file_info_old.stat.st_uid != getuid() + || file_info_old.stat.st_gid != getgid()) { + perm &= 0777; + } + if (!append) { // don't remove when appending + os_remove(wfname); + } + continue; + } + } +#else + err = set_err_arg(_("E212: Can't open file for writing: %s"), fd); + if (forceit && vim_strchr(p_cpo, CPO_FWRITE) == NULL && perm >= 0) { + if (!append) { // don't remove when appending + os_remove(wfname); + } + continue; + } +#endif + } + +restore_backup: + { + // If we failed to open the file, we don't need a backup. Throw it + // away. If we moved or removed the original file try to put the + // backup in its place. + if (backup != NULL && wfname == fname) { + if (backup_copy) { + // There is a small chance that we removed the original, + // try to move the copy in its place. + // This may not work if the vim_rename() fails. + // In that case we leave the copy around. + // If file does not exist, put the copy in its place + if (!os_path_exists(fname)) { + vim_rename(backup, fname); + } + // if original file does exist throw away the copy + if (os_path_exists(fname)) { + os_remove(backup); + } + } else { + // try to put the original file back + vim_rename(backup, fname); + } + } + + // if original file no longer exists give an extra warning + if (!newfile && !os_path_exists(fname)) { + end = 0; + } + } + + if (wfname != fname) { + xfree(wfname); + } + goto fail; + } + write_info.bw_fd = fd; + } + err = set_err(NULL); + + write_info.bw_buf = buffer; + nchars = 0; + + // use "++bin", "++nobin" or 'binary' + int write_bin; + if (eap != NULL && eap->force_bin != 0) { + write_bin = (eap->force_bin == FORCE_BIN); + } else { + write_bin = buf->b_p_bin; + } + + // Skip the BOM when appending and the file already existed, the BOM + // only makes sense at the start of the file. + if (buf->b_p_bomb && !write_bin && (!append || perm < 0)) { + write_info.bw_len = make_bom(buffer, fenc); + if (write_info.bw_len > 0) { + // don't convert + write_info.bw_flags = FIO_NOCONVERT | wb_flags; + if (buf_write_bytes(&write_info) == FAIL) { + end = 0; + } else { + nchars += write_info.bw_len; + } + } + } + write_info.bw_start_lnum = start; + + write_undo_file = (buf->b_p_udf && overwriting && !append + && !filtering && reset_changed && !checking_conversion); + if (write_undo_file) { + // Prepare for computing the hash value of the text. + sha256_start(&sha_ctx); + } + + write_info.bw_len = bufsize; + write_info.bw_flags = wb_flags; + fileformat = get_fileformat_force(buf, eap); + char *s = buffer; + int len = 0; + for (lnum = start; lnum <= end; lnum++) { + // The next while loop is done once for each character written. + // Keep it fast! + char *ptr = ml_get_buf(buf, lnum, false) - 1; + if (write_undo_file) { + sha256_update(&sha_ctx, (uint8_t *)ptr + 1, (uint32_t)(strlen(ptr + 1) + 1)); + } + char c; + while ((c = *++ptr) != NUL) { + if (c == NL) { + *s = NUL; // replace newlines with NULs + } else if (c == CAR && fileformat == EOL_MAC) { + *s = NL; // Mac: replace CRs with NLs + } else { + *s = c; + } + s++; + if (++len != bufsize) { + continue; + } + if (buf_write_bytes(&write_info) == FAIL) { + end = 0; // write error: break loop + break; + } + nchars += bufsize; + s = buffer; + len = 0; + write_info.bw_start_lnum = lnum; + } + // write failed or last line has no EOL: stop here + if (end == 0 + || (lnum == end + && (write_bin || !buf->b_p_fixeol) + && ((write_bin && lnum == buf->b_no_eol_lnum) + || (lnum == buf->b_ml.ml_line_count && !buf->b_p_eol)))) { + lnum++; // written the line, count it + no_eol = true; + break; + } + if (fileformat == EOL_UNIX) { + *s++ = NL; + } else { + *s++ = CAR; // EOL_MAC or EOL_DOS: write CR + if (fileformat == EOL_DOS) { // write CR-NL + if (++len == bufsize) { + if (buf_write_bytes(&write_info) == FAIL) { + end = 0; // write error: break loop + break; + } + nchars += bufsize; + s = buffer; + len = 0; + } + *s++ = NL; + } + } + if (++len == bufsize) { + if (buf_write_bytes(&write_info) == FAIL) { + end = 0; // Write error: break loop. + break; + } + nchars += bufsize; + s = buffer; + len = 0; + + os_breakcheck(); + if (got_int) { + end = 0; // Interrupted, break loop. + break; + } + } + } + if (len > 0 && end > 0) { + write_info.bw_len = len; + if (buf_write_bytes(&write_info) == FAIL) { + end = 0; // write error + } + nchars += len; + } + + if (!buf->b_p_fixeol && buf->b_p_eof) { + // write trailing CTRL-Z + (void)write_eintr(write_info.bw_fd, "\x1a", 1); + } + + // Stop when writing done or an error was encountered. + if (!checking_conversion || end == 0) { + break; + } + + // If no error happened until now, writing should be ok, so loop to + // really write the buffer. + } + + // If we started writing, finish writing. Also when an error was + // encountered. + if (!checking_conversion) { + // On many journalling file systems there is a bug that causes both the + // original and the backup file to be lost when halting the system right + // after writing the file. That's because only the meta-data is + // journalled. Syncing the file slows down the system, but assures it has + // been written to disk and we don't lose it. + // For a device do try the fsync() but don't complain if it does not work + // (could be a pipe). + // If the 'fsync' option is false, don't fsync(). Useful for laptops. + int error; + if (p_fs && (error = os_fsync(fd)) != 0 && !device + // fsync not supported on this storage. + && error != UV_ENOTSUP) { + err = set_err_arg(e_fsync, error); + end = 0; + } + +#ifdef UNIX + // When creating a new file, set its owner/group to that of the original + // file. Get the new device and inode number. + if (backup != NULL && !backup_copy) { + // don't change the owner when it's already OK, some systems remove + // permission or ACL stuff + FileInfo file_info; + if (!os_fileinfo(wfname, &file_info) + || file_info.stat.st_uid != file_info_old.stat.st_uid + || file_info.stat.st_gid != file_info_old.stat.st_gid) { + os_fchown(fd, (uv_uid_t)file_info_old.stat.st_uid, (uv_gid_t)file_info_old.stat.st_gid); + if (perm >= 0) { // Set permission again, may have changed. + (void)os_setperm(wfname, (int)perm); + } + } + buf_set_file_id(buf); + } else if (!buf->file_id_valid) { + // Set the file_id when creating a new file. + buf_set_file_id(buf); + } +#endif + + if ((error = os_close(fd)) != 0) { + err = set_err_arg(_("E512: Close failed: %s"), error); + end = 0; + } + +#ifdef UNIX + if (made_writable) { + perm &= ~0200; // reset 'w' bit for security reasons + } +#endif + if (perm >= 0) { // Set perm. of new file same as old file. + (void)os_setperm(wfname, (int)perm); + } + // Probably need to set the ACL before changing the user (can't set the + // ACL on a file the user doesn't own). + if (!backup_copy) { + os_set_acl(wfname, acl); + } + + if (wfname != fname) { + // The file was written to a temp file, now it needs to be converted + // with 'charconvert' to (overwrite) the output file. + if (end != 0) { + if (eval_charconvert("utf-8", fenc, wfname, fname) == FAIL) { + write_info.bw_conv_error = true; + end = 0; + } + } + os_remove(wfname); + xfree(wfname); + } + } + + if (end == 0) { + // Error encountered. + if (err.msg == NULL) { + if (write_info.bw_conv_error) { + if (write_info.bw_conv_error_lnum == 0) { + err = set_err(_("E513: write error, conversion failed " + "(make 'fenc' empty to override)")); + } else { + err = set_err(xmalloc(300)); + err.alloc = true; + vim_snprintf(err.msg, 300, // NOLINT(runtime/printf) + _("E513: write error, conversion failed in line %" PRIdLINENR + " (make 'fenc' empty to override)"), + write_info.bw_conv_error_lnum); + } + } else if (got_int) { + err = set_err(_(e_interr)); + } else { + err = set_err(_("E514: write error (file system full?)")); + } + } + + // If we have a backup file, try to put it in place of the new file, + // because the new file is probably corrupt. This avoids losing the + // original file when trying to make a backup when writing the file a + // second time. + // When "backup_copy" is set we need to copy the backup over the new + // file. Otherwise rename the backup file. + // If this is OK, don't give the extra warning message. + if (backup != NULL) { + if (backup_copy) { + // This may take a while, if we were interrupted let the user + // know we got the message. + if (got_int) { + msg(_(e_interr)); + ui_flush(); + } + + // copy the file. + if (os_copy(backup, fname, UV_FS_COPYFILE_FICLONE) + == 0) { + end = 1; // success + } + } else { + if (vim_rename(backup, fname) == 0) { + end = 1; + } + } + } + goto fail; + } + + lnum -= start; // compute number of written lines + no_wait_return--; // may wait for return now + +#if !defined(UNIX) + fname = sfname; // use shortname now, for the messages +#endif + if (!filtering) { + add_quoted_fname(IObuff, IOSIZE, buf, fname); + bool insert_space = false; + if (write_info.bw_conv_error) { + STRCAT(IObuff, _(" CONVERSION ERROR")); + insert_space = true; + if (write_info.bw_conv_error_lnum != 0) { + vim_snprintf_add(IObuff, IOSIZE, _(" in line %" PRId64 ";"), + (int64_t)write_info.bw_conv_error_lnum); + } + } else if (notconverted) { + STRCAT(IObuff, _("[NOT converted]")); + insert_space = true; + } else if (converted) { + STRCAT(IObuff, _("[converted]")); + insert_space = true; + } + if (device) { + STRCAT(IObuff, _("[Device]")); + insert_space = true; + } else if (newfile) { + STRCAT(IObuff, new_file_message()); + insert_space = true; + } + if (no_eol) { + msg_add_eol(); + insert_space = true; + } + // may add [unix/dos/mac] + if (msg_add_fileformat(fileformat)) { + insert_space = true; + } + msg_add_lines(insert_space, (long)lnum, nchars); // add line/char count + if (!shortmess(SHM_WRITE)) { + if (append) { + STRCAT(IObuff, shortmess(SHM_WRI) ? _(" [a]") : _(" appended")); + } else { + STRCAT(IObuff, shortmess(SHM_WRI) ? _(" [w]") : _(" written")); + } + } + + set_keep_msg(msg_trunc_attr(IObuff, false, 0), 0); + } + + // When written everything correctly: reset 'modified'. Unless not + // writing to the original file and '+' is not in 'cpoptions'. + if (reset_changed && whole && !append + && !write_info.bw_conv_error + && (overwriting || vim_strchr(p_cpo, CPO_PLUS) != NULL)) { + unchanged(buf, true, false); + const varnumber_T changedtick = buf_get_changedtick(buf); + if (buf->b_last_changedtick + 1 == changedtick) { + // b:changedtick may be incremented in unchanged() but that + // should not trigger a TextChanged event. + buf->b_last_changedtick = changedtick; + } + u_unchanged(buf); + u_update_save_nr(buf); + } + + // If written to the current file, update the timestamp of the swap file + // and reset the BF_WRITE_MASK flags. Also sets buf->b_mtime. + if (overwriting) { + ml_timestamp(buf); + if (append) { + buf->b_flags &= ~BF_NEW; + } else { + buf->b_flags &= ~BF_WRITE_MASK; + } + } + + // If we kept a backup until now, and we are in patch mode, then we make + // the backup file our 'original' file. + if (*p_pm && dobackup) { + char *const org = modname(fname, p_pm, false); + + if (backup != NULL) { + // If the original file does not exist yet + // the current backup file becomes the original file + if (org == NULL) { + emsg(_("E205: Patchmode: can't save original file")); + } else if (!os_path_exists(org)) { + vim_rename(backup, org); + XFREE_CLEAR(backup); // don't delete the file +#ifdef UNIX + os_file_settime(org, + (double)file_info_old.stat.st_atim.tv_sec, + (double)file_info_old.stat.st_mtim.tv_sec); +#endif + } + } else { + // If there is no backup file, remember that a (new) file was + // created. + int empty_fd; + + if (org == NULL + || (empty_fd = os_open(org, + O_CREAT | O_EXCL | O_NOFOLLOW, + perm < 0 ? 0666 : (perm & 0777))) < 0) { + emsg(_("E206: patchmode: can't touch empty original file")); + } else { + close(empty_fd); + } + } + if (org != NULL) { + os_setperm(org, os_getperm(fname) & 0777); + xfree(org); + } + } + + // Remove the backup unless 'backup' option is set + if (!p_bk && backup != NULL + && !write_info.bw_conv_error + && os_remove(backup) != 0) { + emsg(_("E207: Can't delete backup file")); + } + + goto nofail; + + // Finish up. We get here either after failure or success. +fail: + no_wait_return--; // may wait for return now +nofail: + + // Done saving, we accept changed buffer warnings again + buf->b_saving = false; + + xfree(backup); + if (buffer != smallbuf) { + xfree(buffer); + } + xfree(fenc_tofree); + xfree(write_info.bw_conv_buf); + if (write_info.bw_iconv_fd != (iconv_t)-1) { + iconv_close(write_info.bw_iconv_fd); + write_info.bw_iconv_fd = (iconv_t)-1; + } + os_free_acl(acl); + + if (err.msg != NULL) { + // - 100 to save some space for further error message +#ifndef UNIX + add_quoted_fname(IObuff, IOSIZE - 100, buf, sfname); +#else + add_quoted_fname(IObuff, IOSIZE - 100, buf, fname); +#endif + emit_err(&err); + + retval = FAIL; + if (end == 0) { + const int attr = HL_ATTR(HLF_E); // Set highlight for error messages. + msg_puts_attr(_("\nWARNING: Original file may be lost or damaged\n"), + attr | MSG_HIST); + msg_puts_attr(_("don't quit the editor until the file is successfully written!"), + attr | MSG_HIST); + + // Update the timestamp to avoid an "overwrite changed file" + // prompt when writing again. + if (os_fileinfo(fname, &file_info_old)) { + buf_store_file_info(buf, &file_info_old); + buf->b_mtime_read = buf->b_mtime; + buf->b_mtime_read_ns = buf->b_mtime_ns; + } + } + } + msg_scroll = msg_save; + + // When writing the whole file and 'undofile' is set, also write the undo + // file. + if (retval == OK && write_undo_file) { + uint8_t hash[UNDO_HASH_SIZE]; + + sha256_finish(&sha_ctx, hash); + u_write_undo(NULL, false, buf, hash); + } + + if (!should_abort(retval)) { + buf_write_do_post_autocmds(buf, fname, eap, append, filtering, reset_changed, whole); + if (aborting()) { // autocmds may abort script processing + retval = false; + } + } + + got_int |= prev_got_int; + + return retval; +} diff --git a/src/nvim/bufwrite.h b/src/nvim/bufwrite.h new file mode 100644 index 0000000000..0845abf4ee --- /dev/null +++ b/src/nvim/bufwrite.h @@ -0,0 +1,11 @@ +#ifndef NVIM_BUFWRITE_H +#define NVIM_BUFWRITE_H + +#include "nvim/buffer_defs.h" +#include "nvim/ex_cmds_defs.h" + +#ifdef INCLUDE_GENERATED_DECLARATIONS +# include "bufwrite.h.generated.h" +#endif + +#endif // NVIM_BUFWRITE_H diff --git a/src/nvim/diff.c b/src/nvim/diff.c index 52c5732f23..b2efcbac58 100644 --- a/src/nvim/diff.c +++ b/src/nvim/diff.c @@ -22,6 +22,7 @@ #include "nvim/ascii.h" #include "nvim/autocmd.h" #include "nvim/buffer.h" +#include "nvim/bufwrite.h" #include "nvim/change.h" #include "nvim/charset.h" #include "nvim/cursor.h" diff --git a/src/nvim/drawline.c b/src/nvim/drawline.c index 2268a7cd3e..604af21899 100644 --- a/src/nvim/drawline.c +++ b/src/nvim/drawline.c @@ -2947,6 +2947,7 @@ int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, bool nochange, } wlv.boguscols = 0; + wlv.vcol_off = 0; wlv.row++; // When not wrapping and finished diff lines, or when displayed diff --git a/src/nvim/eval/funcs.c b/src/nvim/eval/funcs.c index d9226214c6..d903d498e7 100644 --- a/src/nvim/eval/funcs.c +++ b/src/nvim/eval/funcs.c @@ -2265,7 +2265,8 @@ static void f_fnamemodify(typval_T *argvars, typval_T *rettv, EvalFuncData fptr) /// "foreground()" function static void f_foreground(typval_T *argvars, typval_T *rettv, EvalFuncData fptr) -{} +{ +} static void f_funcref(typval_T *argvars, typval_T *rettv, EvalFuncData fptr) { @@ -2941,7 +2942,8 @@ static void f_gettagstack(typval_T *argvars, typval_T *rettv, EvalFuncData fptr) /// Dummy timer callback. Used by f_wait(). static void dummy_timer_due_cb(TimeWatcher *tw, void *data) -{} +{ +} /// Dummy timer close callback. Used by f_wait(). static void dummy_timer_close_cb(TimeWatcher *tw, void *data) diff --git a/src/nvim/eval/userfunc.c b/src/nvim/eval/userfunc.c index 4cb2f9bd2b..51e109fdfb 100644 --- a/src/nvim/eval/userfunc.c +++ b/src/nvim/eval/userfunc.c @@ -3270,15 +3270,15 @@ static void handle_defer_one(funccall_T *funccal) /// Called when exiting: call all defer functions. void invoke_all_defer(void) { + for (funccall_T *fc = current_funccal; fc != NULL; fc = fc->fc_caller) { + handle_defer_one(fc); + } + for (funccal_entry_T *fce = funccal_stack; fce != NULL; fce = fce->next) { for (funccall_T *fc = fce->top_funccal; fc != NULL; fc = fc->fc_caller) { handle_defer_one(fc); } } - - for (funccall_T *fc = current_funccal; fc != NULL; fc = fc->fc_caller) { - handle_defer_one(fc); - } } /// ":1,25call func(arg1, arg2)" function call. diff --git a/src/nvim/ex_cmds.c b/src/nvim/ex_cmds.c index b75ff45843..3c7e230ad3 100644 --- a/src/nvim/ex_cmds.c +++ b/src/nvim/ex_cmds.c @@ -23,6 +23,7 @@ #include "nvim/buffer.h" #include "nvim/buffer_defs.h" #include "nvim/buffer_updates.h" +#include "nvim/bufwrite.h" #include "nvim/change.h" #include "nvim/channel.h" #include "nvim/charset.h" diff --git a/src/nvim/ex_cmds2.c b/src/nvim/ex_cmds2.c index 4d71285447..deaa24452b 100644 --- a/src/nvim/ex_cmds2.c +++ b/src/nvim/ex_cmds2.c @@ -15,6 +15,7 @@ #include "nvim/ascii.h" #include "nvim/autocmd.h" #include "nvim/buffer.h" +#include "nvim/bufwrite.h" #include "nvim/change.h" #include "nvim/channel.h" #include "nvim/eval.h" diff --git a/src/nvim/fileio.c b/src/nvim/fileio.c index fa2f72932f..bb17382f98 100644 --- a/src/nvim/fileio.c +++ b/src/nvim/fileio.c @@ -10,6 +10,7 @@ #include <inttypes.h> #include <limits.h> #include <stdbool.h> +#include <stddef.h> #include <stdio.h> #include <string.h> #include <sys/stat.h> @@ -37,7 +38,6 @@ #include "nvim/globals.h" #include "nvim/highlight_defs.h" #include "nvim/iconv.h" -#include "nvim/input.h" #include "nvim/log.h" #include "nvim/macros.h" #include "nvim/mbyte.h" @@ -76,78 +76,31 @@ # include "nvim/charset.h" #endif -#define BUFSIZE 8192 // size of normal write buffer -#define SMBUFSIZE 256 // size of emergency write buffer - // For compatibility with libuv < 1.20.0 (tested on 1.18.0) #ifndef UV_FS_COPYFILE_FICLONE # define UV_FS_COPYFILE_FICLONE 0 #endif -enum { - FIO_LATIN1 = 0x01, // convert Latin1 - FIO_UTF8 = 0x02, // convert UTF-8 - FIO_UCS2 = 0x04, // convert UCS-2 - FIO_UCS4 = 0x08, // convert UCS-4 - FIO_UTF16 = 0x10, // convert UTF-16 - FIO_ENDIAN_L = 0x80, // little endian - FIO_NOCONVERT = 0x2000, // skip encoding conversion - FIO_UCSBOM = 0x4000, // check for BOM at start of file - FIO_ALL = -1, // allow all formats -}; - -// When converting, a read() or write() may leave some bytes to be converted -// for the next call. The value is guessed... -#define CONV_RESTLEN 30 - -// We have to guess how much a sequence of bytes may expand when converting -// with iconv() to be able to allocate a buffer. -#define ICONV_MULT 8 - -// Structure to pass arguments from buf_write() to buf_write_bytes(). -struct bw_info { - int bw_fd; // file descriptor - char *bw_buf; // buffer with data to be written - int bw_len; // length of data - int bw_flags; // FIO_ flags - uint8_t bw_rest[CONV_RESTLEN]; // not converted bytes - int bw_restlen; // nr of bytes in bw_rest[] - int bw_first; // first write call - char *bw_conv_buf; // buffer for writing converted chars - size_t bw_conv_buflen; // size of bw_conv_buf - int bw_conv_error; // set for conversion error - linenr_T bw_conv_error_lnum; // first line with error or zero - linenr_T bw_start_lnum; // line number at start of buffer - iconv_t bw_iconv_fd; // descriptor for iconv() or -1 -}; - -typedef struct { - const char *num; - char *msg; - int arg; - bool alloc; -} Error_T; - -static char *err_readonly = "is read-only (cannot override: \"W\" in 'cpoptions')"; - #ifdef INCLUDE_GENERATED_DECLARATIONS # include "fileio.c.generated.h" #endif static const char *e_auchangedbuf = N_("E812: Autocommands changed buffer or buffer name"); -static const char e_no_matching_autocommands_for_buftype_str_buffer[] - = N_("E676: No matching autocommands for buftype=%s buffer"); void filemess(buf_T *buf, char *name, char *s, int attr) { int msg_scroll_save; + int prev_msg_col = msg_col; if (msg_silent != 0) { return; } + add_quoted_fname(IObuff, IOSIZE - 100, buf, name); + // Avoid an over-long translation to cause trouble. xstrlcat(IObuff, s, IOSIZE); + // For the first message may have to start a new line. // For further ones overwrite the previous one, reset msg_scroll before // calling filemess(). @@ -159,6 +112,9 @@ void filemess(buf_T *buf, char *name, char *s, int attr) msg_check_for_delay(false); } msg_start(); + if (prev_msg_col != 0 && msg_col == 0) { + msg_putchar('\r'); // overwrite any previous message. + } msg_scroll = msg_scroll_save; msg_scrolled_ign = true; // may truncate the message to avoid a hit-return prompt @@ -1797,6 +1753,9 @@ failed: msg_scrolled_ign = true; if (!read_stdin && !read_buffer) { + if (msg_col > 0) { + msg_putchar('\r'); // overwrite previous message + } p = (uint8_t *)msg_trunc_attr(IObuff, false, 0); } @@ -2096,1558 +2055,9 @@ char *new_file_message(void) return shortmess(SHM_NEW) ? _("[New]") : _("[New File]"); } -static int buf_write_do_autocmds(buf_T *buf, char **fnamep, char **sfnamep, char **ffnamep, - linenr_T start, linenr_T *endp, exarg_T *eap, bool append, - bool filtering, bool reset_changed, bool overwriting, bool whole, - const pos_T orig_start, const pos_T orig_end) -{ - linenr_T old_line_count = buf->b_ml.ml_line_count; - int msg_save = msg_scroll; - - aco_save_T aco; - bool did_cmd = false; - bool nofile_err = false; - bool empty_memline = buf->b_ml.ml_mfp == NULL; - bufref_T bufref; - - char *sfname = *sfnamep; - - // Apply PRE autocommands. - // Set curbuf to the buffer to be written. - // Careful: The autocommands may call buf_write() recursively! - bool buf_ffname = *ffnamep == buf->b_ffname; - bool buf_sfname = sfname == buf->b_sfname; - bool buf_fname_f = *fnamep == buf->b_ffname; - bool buf_fname_s = *fnamep == buf->b_sfname; - - // Set curwin/curbuf to buf and save a few things. - aucmd_prepbuf(&aco, buf); - set_bufref(&bufref, buf); - - if (append) { - did_cmd = apply_autocmds_exarg(EVENT_FILEAPPENDCMD, sfname, sfname, false, curbuf, eap); - if (!did_cmd) { - if (overwriting && bt_nofilename(curbuf)) { - nofile_err = true; - } else { - apply_autocmds_exarg(EVENT_FILEAPPENDPRE, - sfname, sfname, false, curbuf, eap); - } - } - } else if (filtering) { - apply_autocmds_exarg(EVENT_FILTERWRITEPRE, - NULL, sfname, false, curbuf, eap); - } else if (reset_changed && whole) { - bool was_changed = curbufIsChanged(); - - did_cmd = apply_autocmds_exarg(EVENT_BUFWRITECMD, sfname, sfname, false, curbuf, eap); - if (did_cmd) { - if (was_changed && !curbufIsChanged()) { - // Written everything correctly and BufWriteCmd has reset - // 'modified': Correct the undo information so that an - // undo now sets 'modified'. - u_unchanged(curbuf); - u_update_save_nr(curbuf); - } - } else { - if (overwriting && bt_nofilename(curbuf)) { - nofile_err = true; - } else { - apply_autocmds_exarg(EVENT_BUFWRITEPRE, - sfname, sfname, false, curbuf, eap); - } - } - } else { - did_cmd = apply_autocmds_exarg(EVENT_FILEWRITECMD, sfname, sfname, false, curbuf, eap); - if (!did_cmd) { - if (overwriting && bt_nofilename(curbuf)) { - nofile_err = true; - } else { - apply_autocmds_exarg(EVENT_FILEWRITEPRE, - sfname, sfname, false, curbuf, eap); - } - } - } - - // restore curwin/curbuf and a few other things - aucmd_restbuf(&aco); - - // In three situations we return here and don't write the file: - // 1. the autocommands deleted or unloaded the buffer. - // 2. The autocommands abort script processing. - // 3. If one of the "Cmd" autocommands was executed. - if (!bufref_valid(&bufref)) { - buf = NULL; - } - if (buf == NULL || (buf->b_ml.ml_mfp == NULL && !empty_memline) - || did_cmd || nofile_err - || aborting()) { - if (buf != NULL && (cmdmod.cmod_flags & CMOD_LOCKMARKS)) { - // restore the original '[ and '] positions - buf->b_op_start = orig_start; - buf->b_op_end = orig_end; - } - - no_wait_return--; - msg_scroll = msg_save; - if (nofile_err) { - semsg(_(e_no_matching_autocommands_for_buftype_str_buffer), curbuf->b_p_bt); - } - - if (nofile_err - || aborting()) { - // An aborting error, interrupt or exception in the - // autocommands. - return FAIL; - } - if (did_cmd) { - if (buf == NULL) { - // The buffer was deleted. We assume it was written - // (can't retry anyway). - return OK; - } - if (overwriting) { - // Assume the buffer was written, update the timestamp. - ml_timestamp(buf); - if (append) { - buf->b_flags &= ~BF_NEW; - } else { - buf->b_flags &= ~BF_WRITE_MASK; - } - } - if (reset_changed && buf->b_changed && !append - && (overwriting || vim_strchr(p_cpo, CPO_PLUS) != NULL)) { - // Buffer still changed, the autocommands didn't work properly. - return FAIL; - } - return OK; - } - if (!aborting()) { - emsg(_("E203: Autocommands deleted or unloaded buffer to be written")); - } - return FAIL; - } - - // The autocommands may have changed the number of lines in the file. - // When writing the whole file, adjust the end. - // When writing part of the file, assume that the autocommands only - // changed the number of lines that are to be written (tricky!). - if (buf->b_ml.ml_line_count != old_line_count) { - if (whole) { // write all - *endp = buf->b_ml.ml_line_count; - } else if (buf->b_ml.ml_line_count > old_line_count) { // more lines - *endp += buf->b_ml.ml_line_count - old_line_count; - } else { // less lines - *endp -= old_line_count - buf->b_ml.ml_line_count; - if (*endp < start) { - no_wait_return--; - msg_scroll = msg_save; - emsg(_("E204: Autocommand changed number of lines in unexpected way")); - return FAIL; - } - } - } - - // The autocommands may have changed the name of the buffer, which may - // be kept in fname, ffname and sfname. - if (buf_ffname) { - *ffnamep = buf->b_ffname; - } - if (buf_sfname) { - *sfnamep = buf->b_sfname; - } - if (buf_fname_f) { - *fnamep = buf->b_ffname; - } - if (buf_fname_s) { - *fnamep = buf->b_sfname; - } - return NOTDONE; -} - -static void buf_write_do_post_autocmds(buf_T *buf, char *fname, exarg_T *eap, bool append, - bool filtering, bool reset_changed, bool whole) -{ - aco_save_T aco; - - curbuf->b_no_eol_lnum = 0; // in case it was set by the previous read - - // Apply POST autocommands. - // Careful: The autocommands may call buf_write() recursively! - aucmd_prepbuf(&aco, buf); - - if (append) { - apply_autocmds_exarg(EVENT_FILEAPPENDPOST, fname, fname, - false, curbuf, eap); - } else if (filtering) { - apply_autocmds_exarg(EVENT_FILTERWRITEPOST, NULL, fname, - false, curbuf, eap); - } else if (reset_changed && whole) { - apply_autocmds_exarg(EVENT_BUFWRITEPOST, fname, fname, - false, curbuf, eap); - } else { - apply_autocmds_exarg(EVENT_FILEWRITEPOST, fname, fname, - false, curbuf, eap); - } - - // restore curwin/curbuf and a few other things - aucmd_restbuf(&aco); -} - -static inline Error_T set_err_num(const char *num, const char *msg) -{ - return (Error_T){ .num = num, .msg = (char *)msg, .arg = 0 }; -} - -static inline Error_T set_err_arg(const char *msg, int arg) -{ - return (Error_T){ .num = NULL, .msg = (char *)msg, .arg = arg }; -} - -static inline Error_T set_err(const char *msg) -{ - return (Error_T){ .num = NULL, .msg = (char *)msg, .arg = 0 }; -} - -static void emit_err(Error_T *e) -{ - if (e->num != NULL) { - if (e->arg != 0) { - semsg("%s: %s%s: %s", e->num, IObuff, e->msg, os_strerror(e->arg)); - } else { - semsg("%s: %s%s", e->num, IObuff, e->msg); - } - } else if (e->arg != 0) { - semsg(e->msg, os_strerror(e->arg)); - } else { - emsg(e->msg); - } - if (e->alloc) { - xfree(e->msg); - } -} - -#if defined(UNIX) - -static int get_fileinfo_os(char *fname, FileInfo *file_info_old, bool overwriting, long *perm, - bool *device, bool *newfile, Error_T *err) -{ - *perm = -1; - if (!os_fileinfo(fname, file_info_old)) { - *newfile = true; - } else { - *perm = (long)file_info_old->stat.st_mode; - if (!S_ISREG(file_info_old->stat.st_mode)) { // not a file - if (S_ISDIR(file_info_old->stat.st_mode)) { - *err = set_err_num("E502", _("is a directory")); - return FAIL; - } - if (os_nodetype(fname) != NODE_WRITABLE) { - *err = set_err_num("E503", _("is not a file or writable device")); - return FAIL; - } - // It's a device of some kind (or a fifo) which we can write to - // but for which we can't make a backup. - *device = true; - *newfile = true; - *perm = -1; - } - } - return OK; -} - -#else - -static int get_fileinfo_os(char *fname, FileInfo *file_info_old, bool overwriting, long *perm, - bool *device, bool *newfile, Error_T *err) -{ - // Check for a writable device name. - char nodetype = fname == NULL ? NODE_OTHER : (char)os_nodetype(fname); - if (nodetype == NODE_OTHER) { - *err = set_err_num("E503", _("is not a file or writable device")); - return FAIL; - } - if (nodetype == NODE_WRITABLE) { - *device = true; - *newfile = true; - *perm = -1; - } else { - *perm = os_getperm(fname); - if (*perm < 0) { - *newfile = true; - } else if (os_isdir(fname)) { - *err = set_err_num("E502", _("is a directory")); - return FAIL; - } - if (overwriting) { - os_fileinfo(fname, file_info_old); - } - } - return OK; -} - -#endif - -/// @param buf -/// @param fname File name -/// @param overwriting -/// @param forceit -/// @param[out] file_info_old -/// @param[out] perm -/// @param[out] device -/// @param[out] newfile -/// @param[out] readonly -static int get_fileinfo(buf_T *buf, char *fname, bool overwriting, bool forceit, - FileInfo *file_info_old, long *perm, bool *device, bool *newfile, - bool *readonly, Error_T *err) -{ - if (get_fileinfo_os(fname, file_info_old, overwriting, perm, device, newfile, err) == FAIL) { - return FAIL; - } - - *readonly = false; // overwritten file is read-only - - if (!*device && !*newfile) { - // Check if the file is really writable (when renaming the file to - // make a backup we won't discover it later). - *readonly = !os_file_is_writable(fname); - - if (!forceit && *readonly) { - if (vim_strchr(p_cpo, CPO_FWRITE) != NULL) { - *err = set_err_num("E504", _(err_readonly)); - } else { - *err = set_err_num("E505", _("is read-only (add ! to override)")); - } - return FAIL; - } - - // If 'forceit' is false, check if the timestamp hasn't changed since reading the file. - if (overwriting && !forceit) { - int retval = check_mtime(buf, file_info_old); - if (retval == FAIL) { - return FAIL; - } - } - } - return OK; -} - -static int buf_write_make_backup(char *fname, bool append, FileInfo *file_info_old, vim_acl_T acl, - long perm, unsigned int bkc, bool file_readonly, bool forceit, - int *backup_copyp, char **backupp, Error_T *err) -{ - FileInfo file_info; - const bool no_prepend_dot = false; - - if ((bkc & BKC_YES) || append) { // "yes" - *backup_copyp = true; - } else if ((bkc & BKC_AUTO)) { // "auto" - // Don't rename the file when: - // - it's a hard link - // - it's a symbolic link - // - we don't have write permission in the directory - if (os_fileinfo_hardlinks(file_info_old) > 1 - || !os_fileinfo_link(fname, &file_info) - || !os_fileinfo_id_equal(&file_info, file_info_old)) { - *backup_copyp = true; - } else { - // Check if we can create a file and set the owner/group to - // the ones from the original file. - // First find a file name that doesn't exist yet (use some - // arbitrary numbers). - STRCPY(IObuff, fname); - for (int i = 4913;; i += 123) { - char *tail = path_tail(IObuff); - size_t size = (size_t)(tail - IObuff); - snprintf(tail, IOSIZE - size, "%d", i); - if (!os_fileinfo_link(IObuff, &file_info)) { - break; - } - } - int fd = os_open(IObuff, - O_CREAT|O_WRONLY|O_EXCL|O_NOFOLLOW, (int)perm); - if (fd < 0) { // can't write in directory - *backup_copyp = true; - } else { -#ifdef UNIX - os_fchown(fd, (uv_uid_t)file_info_old->stat.st_uid, (uv_gid_t)file_info_old->stat.st_gid); - if (!os_fileinfo(IObuff, &file_info) - || file_info.stat.st_uid != file_info_old->stat.st_uid - || file_info.stat.st_gid != file_info_old->stat.st_gid - || (long)file_info.stat.st_mode != perm) { - *backup_copyp = true; - } -#endif - // Close the file before removing it, on MS-Windows we - // can't delete an open file. - close(fd); - os_remove(IObuff); - } - } - } - - // Break symlinks and/or hardlinks if we've been asked to. - if ((bkc & BKC_BREAKSYMLINK) || (bkc & BKC_BREAKHARDLINK)) { -#ifdef UNIX - bool file_info_link_ok = os_fileinfo_link(fname, &file_info); - - // Symlinks. - if ((bkc & BKC_BREAKSYMLINK) - && file_info_link_ok - && !os_fileinfo_id_equal(&file_info, file_info_old)) { - *backup_copyp = false; - } - - // Hardlinks. - if ((bkc & BKC_BREAKHARDLINK) - && os_fileinfo_hardlinks(file_info_old) > 1 - && (!file_info_link_ok - || os_fileinfo_id_equal(&file_info, file_info_old))) { - *backup_copyp = false; - } -#endif - } - - // make sure we have a valid backup extension to use - char *backup_ext = *p_bex == NUL ? ".bak" : p_bex; - - if (*backup_copyp) { - int some_error = false; - - // Try to make the backup in each directory in the 'bdir' option. - // - // Unix semantics has it, that we may have a writable file, - // that cannot be recreated with a simple open(..., O_CREAT, ) e.g: - // - the directory is not writable, - // - the file may be a symbolic link, - // - the file may belong to another user/group, etc. - // - // For these reasons, the existing writable file must be truncated - // and reused. Creation of a backup COPY will be attempted. - char *dirp = p_bdir; - while (*dirp) { - // Isolate one directory name, using an entry in 'bdir'. - size_t dir_len = copy_option_part(&dirp, IObuff, IOSIZE, ","); - char *p = IObuff + dir_len; - bool trailing_pathseps = after_pathsep(IObuff, p) && p[-1] == p[-2]; - if (trailing_pathseps) { - IObuff[dir_len - 2] = NUL; - } - if (*dirp == NUL && !os_isdir(IObuff)) { - int ret; - char *failed_dir; - if ((ret = os_mkdir_recurse(IObuff, 0755, &failed_dir, NULL)) != 0) { - semsg(_("E303: Unable to create directory \"%s\" for backup file: %s"), - failed_dir, os_strerror(ret)); - xfree(failed_dir); - } - } - if (trailing_pathseps) { - // Ends with '//', Use Full path - if ((p = make_percent_swname(IObuff, fname)) - != NULL) { - *backupp = modname(p, backup_ext, no_prepend_dot); - xfree(p); - } - } - - char *rootname = get_file_in_dir(fname, IObuff); - if (rootname == NULL) { - some_error = true; // out of memory - goto nobackup; - } - - FileInfo file_info_new; - { - // - // Make the backup file name. - // - if (*backupp == NULL) { - *backupp = modname(rootname, backup_ext, no_prepend_dot); - } - - if (*backupp == NULL) { - xfree(rootname); - some_error = true; // out of memory - goto nobackup; - } - - // Check if backup file already exists. - if (os_fileinfo(*backupp, &file_info_new)) { - if (os_fileinfo_id_equal(&file_info_new, file_info_old)) { - // - // Backup file is same as original file. - // May happen when modname() gave the same file back (e.g. silly - // link). If we don't check here, we either ruin the file when - // copying or erase it after writing. - // - XFREE_CLEAR(*backupp); // no backup file to delete - } else if (!p_bk) { - // We are not going to keep the backup file, so don't - // delete an existing one, and try to use another name instead. - // Change one character, just before the extension. - // - char *wp = *backupp + strlen(*backupp) - 1 - strlen(backup_ext); - if (wp < *backupp) { // empty file name ??? - wp = *backupp; - } - *wp = 'z'; - while (*wp > 'a' && os_fileinfo(*backupp, &file_info_new)) { - (*wp)--; - } - // They all exist??? Must be something wrong. - if (*wp == 'a') { - XFREE_CLEAR(*backupp); - } - } - } - } - xfree(rootname); - - // Try to create the backup file - if (*backupp != NULL) { - // remove old backup, if present - os_remove(*backupp); - - // set file protection same as original file, but - // strip s-bit. - (void)os_setperm(*backupp, perm & 0777); - -#ifdef UNIX - // - // Try to set the group of the backup same as the original file. If - // this fails, set the protection bits for the group same as the - // protection bits for others. - // - if (file_info_new.stat.st_gid != file_info_old->stat.st_gid - && os_chown(*backupp, (uv_uid_t)-1, (uv_gid_t)file_info_old->stat.st_gid) != 0) { - os_setperm(*backupp, ((int)perm & 0707) | (((int)perm & 07) << 3)); - } -#endif - - // copy the file - if (os_copy(fname, *backupp, UV_FS_COPYFILE_FICLONE) != 0) { - *err = set_err(_("E509: Cannot create backup file (add ! to override)")); - XFREE_CLEAR(*backupp); - *backupp = NULL; - continue; - } - -#ifdef UNIX - os_file_settime(*backupp, - (double)file_info_old->stat.st_atim.tv_sec, - (double)file_info_old->stat.st_mtim.tv_sec); -#endif - os_set_acl(*backupp, acl); - *err = set_err(NULL); - break; - } - } - -nobackup: - if (*backupp == NULL && err->msg == NULL) { - *err = set_err(_("E509: Cannot create backup file (add ! to override)")); - } - // Ignore errors when forceit is true. - if ((some_error || err->msg != NULL) && !forceit) { - return FAIL; - } - *err = set_err(NULL); - } else { - // Make a backup by renaming the original file. - - // If 'cpoptions' includes the "W" flag, we don't want to - // overwrite a read-only file. But rename may be possible - // anyway, thus we need an extra check here. - if (file_readonly && vim_strchr(p_cpo, CPO_FWRITE) != NULL) { - *err = set_err_num("E504", _(err_readonly)); - return FAIL; - } - - // Form the backup file name - change path/fo.o.h to - // path/fo.o.h.bak Try all directories in 'backupdir', first one - // that works is used. - char *dirp = p_bdir; - while (*dirp) { - // Isolate one directory name and make the backup file name. - size_t dir_len = copy_option_part(&dirp, IObuff, IOSIZE, ","); - char *p = IObuff + dir_len; - bool trailing_pathseps = after_pathsep(IObuff, p) && p[-1] == p[-2]; - if (trailing_pathseps) { - IObuff[dir_len - 2] = NUL; - } - if (*dirp == NUL && !os_isdir(IObuff)) { - int ret; - char *failed_dir; - if ((ret = os_mkdir_recurse(IObuff, 0755, &failed_dir, NULL)) != 0) { - semsg(_("E303: Unable to create directory \"%s\" for backup file: %s"), - failed_dir, os_strerror(ret)); - xfree(failed_dir); - } - } - if (trailing_pathseps) { - // path ends with '//', use full path - if ((p = make_percent_swname(IObuff, fname)) - != NULL) { - *backupp = modname(p, backup_ext, no_prepend_dot); - xfree(p); - } - } - - if (*backupp == NULL) { - char *rootname = get_file_in_dir(fname, IObuff); - if (rootname == NULL) { - *backupp = NULL; - } else { - *backupp = modname(rootname, backup_ext, no_prepend_dot); - xfree(rootname); - } - } - - if (*backupp != NULL) { - // If we are not going to keep the backup file, don't - // delete an existing one, try to use another name. - // Change one character, just before the extension. - if (!p_bk && os_path_exists(*backupp)) { - p = *backupp + strlen(*backupp) - 1 - strlen(backup_ext); - if (p < *backupp) { // empty file name ??? - p = *backupp; - } - *p = 'z'; - while (*p > 'a' && os_path_exists(*backupp)) { - (*p)--; - } - // They all exist??? Must be something wrong! - if (*p == 'a') { - XFREE_CLEAR(*backupp); - } - } - } - if (*backupp != NULL) { - // Delete any existing backup and move the current version - // to the backup. For safety, we don't remove the backup - // until the write has finished successfully. And if the - // 'backup' option is set, leave it around. - - // If the renaming of the original file to the backup file - // works, quit here. - /// - if (vim_rename(fname, *backupp) == 0) { - break; - } - - XFREE_CLEAR(*backupp); // don't do the rename below - } - } - if (*backupp == NULL && !forceit) { - *err = set_err(_("E510: Can't make backup file (add ! to override)")); - return FAIL; - } - } - return OK; -} - -/// buf_write() - write to file "fname" lines "start" through "end" -/// -/// We do our own buffering here because fwrite() is so slow. -/// -/// If "forceit" is true, we don't care for errors when attempting backups. -/// In case of an error everything possible is done to restore the original -/// file. But when "forceit" is true, we risk losing it. -/// -/// When "reset_changed" is true and "append" == false and "start" == 1 and -/// "end" == curbuf->b_ml.ml_line_count, reset curbuf->b_changed. -/// -/// This function must NOT use NameBuff (because it's called by autowrite()). -/// -/// -/// @param eap for forced 'ff' and 'fenc', can be NULL! -/// @param append append to the file -/// -/// @return FAIL for failure, OK otherwise -int buf_write(buf_T *buf, char *fname, char *sfname, linenr_T start, linenr_T end, exarg_T *eap, - int append, int forceit, int reset_changed, int filtering) -{ - int retval = OK; - int msg_save = msg_scroll; - int prev_got_int = got_int; - // writing everything - int whole = (start == 1 && end == buf->b_ml.ml_line_count); - int write_undo_file = false; - context_sha256_T sha_ctx; - unsigned int bkc = get_bkc_value(buf); - - if (fname == NULL || *fname == NUL) { // safety check - return FAIL; - } - if (buf->b_ml.ml_mfp == NULL) { - // This can happen during startup when there is a stray "w" in the - // vimrc file. - emsg(_(e_emptybuf)); - return FAIL; - } - - // Disallow writing in secure mode. - if (check_secure()) { - return FAIL; - } - - // Avoid a crash for a long name. - if (strlen(fname) >= MAXPATHL) { - emsg(_(e_longname)); - return FAIL; - } - - // must init bw_conv_buf and bw_iconv_fd before jumping to "fail" - struct bw_info write_info; // info for buf_write_bytes() - write_info.bw_conv_buf = NULL; - write_info.bw_conv_error = false; - write_info.bw_conv_error_lnum = 0; - write_info.bw_restlen = 0; - write_info.bw_iconv_fd = (iconv_t)-1; - - // After writing a file changedtick changes but we don't want to display - // the line. - ex_no_reprint = true; - - // If there is no file name yet, use the one for the written file. - // BF_NOTEDITED is set to reflect this (in case the write fails). - // Don't do this when the write is for a filter command. - // Don't do this when appending. - // Only do this when 'cpoptions' contains the 'F' flag. - if (buf->b_ffname == NULL - && reset_changed - && whole - && buf == curbuf - && !bt_nofilename(buf) - && !filtering - && (!append || vim_strchr(p_cpo, CPO_FNAMEAPP) != NULL) - && vim_strchr(p_cpo, CPO_FNAMEW) != NULL) { - if (set_rw_fname(fname, sfname) == FAIL) { - return FAIL; - } - buf = curbuf; // just in case autocmds made "buf" invalid - } - - if (sfname == NULL) { - sfname = fname; - } - - // For Unix: Use the short file name whenever possible. - // Avoids problems with networks and when directory names are changed. - // Don't do this for Windows, a "cd" in a sub-shell may have moved us to - // another directory, which we don't detect. - char *ffname = fname; // remember full fname -#ifdef UNIX - fname = sfname; -#endif - -// true if writing over original - int overwriting = buf->b_ffname != NULL && path_fnamecmp(ffname, buf->b_ffname) == 0; - - no_wait_return++; // don't wait for return yet - - const pos_T orig_start = buf->b_op_start; - const pos_T orig_end = buf->b_op_end; - - // Set '[ and '] marks to the lines to be written. - buf->b_op_start.lnum = start; - buf->b_op_start.col = 0; - buf->b_op_end.lnum = end; - buf->b_op_end.col = 0; - - int res = buf_write_do_autocmds(buf, &fname, &sfname, &ffname, start, &end, eap, append, - filtering, reset_changed, overwriting, whole, orig_start, - orig_end); - if (res != NOTDONE) { - return res; - } - - if (cmdmod.cmod_flags & CMOD_LOCKMARKS) { - // restore the original '[ and '] positions - buf->b_op_start = orig_start; - buf->b_op_end = orig_end; - } - - if (shortmess(SHM_OVER) && !exiting) { - msg_scroll = false; // overwrite previous file message - } else { - msg_scroll = true; // don't overwrite previous file message - } - if (!filtering) { - // show that we are busy -#ifndef UNIX - filemess(buf, sfname, "", 0); -#else - filemess(buf, fname, "", 0); -#endif - } - msg_scroll = false; // always overwrite the file message now - - char *buffer = verbose_try_malloc(BUFSIZE); - int bufsize; - char smallbuf[SMBUFSIZE]; - // can't allocate big buffer, use small one (to be able to write when out of - // memory) - if (buffer == NULL) { - buffer = smallbuf; - bufsize = SMBUFSIZE; - } else { - bufsize = BUFSIZE; - } - - Error_T err = { 0 }; - long perm; // file permissions - bool newfile = false; // true if file doesn't exist yet - bool device = false; // writing to a device - bool file_readonly = false; // overwritten file is read-only - char *backup = NULL; - char *fenc_tofree = NULL; // allocated "fenc" - - // Get information about original file (if there is one). - FileInfo file_info_old; - - vim_acl_T acl = NULL; // ACL copied from original file to - // backup or new file - - if (get_fileinfo(buf, fname, overwriting, forceit, &file_info_old, &perm, &device, &newfile, - &file_readonly, &err) == FAIL) { - goto fail; - } - - // For systems that support ACL: get the ACL from the original file. - if (!newfile) { - acl = os_get_acl(fname); - } - - // If 'backupskip' is not empty, don't make a backup for some files. - bool dobackup = (p_wb || p_bk || *p_pm != NUL); - if (dobackup && *p_bsk != NUL && match_file_list(p_bsk, sfname, ffname)) { - dobackup = false; - } - - int backup_copy = false; // copy the original file? - - // Save the value of got_int and reset it. We don't want a previous - // interruption cancel writing, only hitting CTRL-C while writing should - // abort it. - prev_got_int = got_int; - got_int = false; - - // Mark the buffer as 'being saved' to prevent changed buffer warnings - buf->b_saving = true; - - // If we are not appending or filtering, the file exists, and the - // 'writebackup', 'backup' or 'patchmode' option is set, need a backup. - // When 'patchmode' is set also make a backup when appending. - // - // Do not make any backup, if 'writebackup' and 'backup' are both switched - // off. This helps when editing large files on almost-full disks. - if (!(append && *p_pm == NUL) && !filtering && perm >= 0 && dobackup) { - if (buf_write_make_backup(fname, append, &file_info_old, acl, perm, bkc, file_readonly, forceit, - &backup_copy, &backup, &err) == FAIL) { - retval = FAIL; - goto fail; - } - } - -#if defined(UNIX) - int made_writable = false; // 'w' bit has been set - - // When using ":w!" and the file was read-only: make it writable - if (forceit && perm >= 0 && !(perm & 0200) - && file_info_old.stat.st_uid == getuid() - && vim_strchr(p_cpo, CPO_FWRITE) == NULL) { - perm |= 0200; - (void)os_setperm(fname, (int)perm); - made_writable = true; - } -#endif - - // When using ":w!" and writing to the current file, 'readonly' makes no - // sense, reset it, unless 'Z' appears in 'cpoptions'. - if (forceit && overwriting && vim_strchr(p_cpo, CPO_KEEPRO) == NULL) { - buf->b_p_ro = false; - need_maketitle = true; // set window title later - status_redraw_all(); // redraw status lines later - } - - if (end > buf->b_ml.ml_line_count) { - end = buf->b_ml.ml_line_count; - } - if (buf->b_ml.ml_flags & ML_EMPTY) { - start = end + 1; - } - - char *wfname = NULL; // name of file to write to - - // If the original file is being overwritten, there is a small chance that - // we crash in the middle of writing. Therefore the file is preserved now. - // This makes all block numbers positive so that recovery does not need - // the original file. - // Don't do this if there is a backup file and we are exiting. - if (reset_changed && !newfile && overwriting - && !(exiting && backup != NULL)) { - ml_preserve(buf, false, !!p_fs); - if (got_int) { - err = set_err(_(e_interr)); - goto restore_backup; - } - } - - // Default: write the file directly. May write to a temp file for - // multi-byte conversion. - wfname = fname; - - char *fenc; // effective 'fileencoding' - - // Check for forced 'fileencoding' from "++opt=val" argument. - if (eap != NULL && eap->force_enc != 0) { - fenc = eap->cmd + eap->force_enc; - fenc = enc_canonize(fenc); - fenc_tofree = fenc; - } else { - fenc = buf->b_p_fenc; - } - - // Check if the file needs to be converted. - int converted = need_conversion(fenc); - int wb_flags = 0; - - // Check if UTF-8 to UCS-2/4 or Latin1 conversion needs to be done. Or - // Latin1 to Unicode conversion. This is handled in buf_write_bytes(). - // Prepare the flags for it and allocate bw_conv_buf when needed. - if (converted) { - wb_flags = get_fio_flags(fenc); - if (wb_flags & (FIO_UCS2 | FIO_UCS4 | FIO_UTF16 | FIO_UTF8)) { - // Need to allocate a buffer to translate into. - if (wb_flags & (FIO_UCS2 | FIO_UTF16 | FIO_UTF8)) { - write_info.bw_conv_buflen = (size_t)bufsize * 2; - } else { // FIO_UCS4 - write_info.bw_conv_buflen = (size_t)bufsize * 4; - } - write_info.bw_conv_buf = verbose_try_malloc(write_info.bw_conv_buflen); - if (!write_info.bw_conv_buf) { - end = 0; - } - } - } - - if (converted && wb_flags == 0) { - // Use iconv() conversion when conversion is needed and it's not done - // internally. - write_info.bw_iconv_fd = (iconv_t)my_iconv_open(fenc, "utf-8"); - if (write_info.bw_iconv_fd != (iconv_t)-1) { - // We're going to use iconv(), allocate a buffer to convert in. - write_info.bw_conv_buflen = (size_t)bufsize * ICONV_MULT; - write_info.bw_conv_buf = verbose_try_malloc(write_info.bw_conv_buflen); - if (!write_info.bw_conv_buf) { - end = 0; - } - write_info.bw_first = true; - } else { - // When the file needs to be converted with 'charconvert' after - // writing, write to a temp file instead and let the conversion - // overwrite the original file. - if (*p_ccv != NUL) { - wfname = vim_tempname(); - if (wfname == NULL) { // Can't write without a tempfile! - err = set_err(_("E214: Can't find temp file for writing")); - goto restore_backup; - } - } - } - } - - int notconverted = false; - - if (converted && wb_flags == 0 - && write_info.bw_iconv_fd == (iconv_t)-1 - && wfname == fname) { - if (!forceit) { - err = set_err(_("E213: Cannot convert (add ! to write without conversion)")); - goto restore_backup; - } - notconverted = true; - } - - int no_eol = false; // no end-of-line written - long nchars; - linenr_T lnum; - int fileformat; - int checking_conversion; - - int fd; - - // If conversion is taking place, we may first pretend to write and check - // for conversion errors. Then loop again to write for real. - // When not doing conversion this writes for real right away. - for (checking_conversion = true;; checking_conversion = false) { - // There is no need to check conversion when: - // - there is no conversion - // - we make a backup file, that can be restored in case of conversion - // failure. - if (!converted || dobackup) { - checking_conversion = false; - } - - if (checking_conversion) { - // Make sure we don't write anything. - fd = -1; - write_info.bw_fd = fd; - } else { - // Open the file "wfname" for writing. - // We may try to open the file twice: If we can't write to the file - // and forceit is true we delete the existing file and try to - // create a new one. If this still fails we may have lost the - // original file! (this may happen when the user reached his - // quotum for number of files). - // Appending will fail if the file does not exist and forceit is - // false. - const int fflags = O_WRONLY | (append - ? (forceit ? (O_APPEND | O_CREAT) : O_APPEND) - : (O_CREAT | O_TRUNC)); - const int mode = perm < 0 ? 0666 : (perm & 0777); - - while ((fd = os_open(wfname, fflags, mode)) < 0) { - // A forced write will try to create a new file if the old one - // is still readonly. This may also happen when the directory - // is read-only. In that case the mch_remove() will fail. - if (err.msg == NULL) { -#ifdef UNIX - FileInfo file_info; - - // Don't delete the file when it's a hard or symbolic link. - if ((!newfile && os_fileinfo_hardlinks(&file_info_old) > 1) - || (os_fileinfo_link(fname, &file_info) - && !os_fileinfo_id_equal(&file_info, &file_info_old))) { - err = set_err(_("E166: Can't open linked file for writing")); - } else { - err = set_err_arg(_("E212: Can't open file for writing: %s"), fd); - if (forceit && vim_strchr(p_cpo, CPO_FWRITE) == NULL && perm >= 0) { - // we write to the file, thus it should be marked - // writable after all - if (!(perm & 0200)) { - made_writable = true; - } - perm |= 0200; - if (file_info_old.stat.st_uid != getuid() - || file_info_old.stat.st_gid != getgid()) { - perm &= 0777; - } - if (!append) { // don't remove when appending - os_remove(wfname); - } - continue; - } - } -#else - err = set_err_arg(_("E212: Can't open file for writing: %s"), fd); - if (forceit && vim_strchr(p_cpo, CPO_FWRITE) == NULL && perm >= 0) { - if (!append) { // don't remove when appending - os_remove(wfname); - } - continue; - } -#endif - } - -restore_backup: - { - // If we failed to open the file, we don't need a backup. Throw it - // away. If we moved or removed the original file try to put the - // backup in its place. - if (backup != NULL && wfname == fname) { - if (backup_copy) { - // There is a small chance that we removed the original, - // try to move the copy in its place. - // This may not work if the vim_rename() fails. - // In that case we leave the copy around. - // If file does not exist, put the copy in its place - if (!os_path_exists(fname)) { - vim_rename(backup, fname); - } - // if original file does exist throw away the copy - if (os_path_exists(fname)) { - os_remove(backup); - } - } else { - // try to put the original file back - vim_rename(backup, fname); - } - } - - // if original file no longer exists give an extra warning - if (!newfile && !os_path_exists(fname)) { - end = 0; - } - } - - if (wfname != fname) { - xfree(wfname); - } - goto fail; - } - write_info.bw_fd = fd; - } - err = set_err(NULL); - - write_info.bw_buf = buffer; - nchars = 0; - - // use "++bin", "++nobin" or 'binary' - int write_bin; - if (eap != NULL && eap->force_bin != 0) { - write_bin = (eap->force_bin == FORCE_BIN); - } else { - write_bin = buf->b_p_bin; - } - - // Skip the BOM when appending and the file already existed, the BOM - // only makes sense at the start of the file. - if (buf->b_p_bomb && !write_bin && (!append || perm < 0)) { - write_info.bw_len = make_bom(buffer, fenc); - if (write_info.bw_len > 0) { - // don't convert - write_info.bw_flags = FIO_NOCONVERT | wb_flags; - if (buf_write_bytes(&write_info) == FAIL) { - end = 0; - } else { - nchars += write_info.bw_len; - } - } - } - write_info.bw_start_lnum = start; - - write_undo_file = (buf->b_p_udf && overwriting && !append - && !filtering && reset_changed && !checking_conversion); - if (write_undo_file) { - // Prepare for computing the hash value of the text. - sha256_start(&sha_ctx); - } - - write_info.bw_len = bufsize; - write_info.bw_flags = wb_flags; - fileformat = get_fileformat_force(buf, eap); - char *s = buffer; - int len = 0; - for (lnum = start; lnum <= end; lnum++) { - // The next while loop is done once for each character written. - // Keep it fast! - char *ptr = ml_get_buf(buf, lnum, false) - 1; - if (write_undo_file) { - sha256_update(&sha_ctx, (uint8_t *)ptr + 1, (uint32_t)(strlen(ptr + 1) + 1)); - } - char c; - while ((c = *++ptr) != NUL) { - if (c == NL) { - *s = NUL; // replace newlines with NULs - } else if (c == CAR && fileformat == EOL_MAC) { - *s = NL; // Mac: replace CRs with NLs - } else { - *s = c; - } - s++; - if (++len != bufsize) { - continue; - } - if (buf_write_bytes(&write_info) == FAIL) { - end = 0; // write error: break loop - break; - } - nchars += bufsize; - s = buffer; - len = 0; - write_info.bw_start_lnum = lnum; - } - // write failed or last line has no EOL: stop here - if (end == 0 - || (lnum == end - && (write_bin || !buf->b_p_fixeol) - && ((write_bin && lnum == buf->b_no_eol_lnum) - || (lnum == buf->b_ml.ml_line_count && !buf->b_p_eol)))) { - lnum++; // written the line, count it - no_eol = true; - break; - } - if (fileformat == EOL_UNIX) { - *s++ = NL; - } else { - *s++ = CAR; // EOL_MAC or EOL_DOS: write CR - if (fileformat == EOL_DOS) { // write CR-NL - if (++len == bufsize) { - if (buf_write_bytes(&write_info) == FAIL) { - end = 0; // write error: break loop - break; - } - nchars += bufsize; - s = buffer; - len = 0; - } - *s++ = NL; - } - } - if (++len == bufsize) { - if (buf_write_bytes(&write_info) == FAIL) { - end = 0; // Write error: break loop. - break; - } - nchars += bufsize; - s = buffer; - len = 0; - - os_breakcheck(); - if (got_int) { - end = 0; // Interrupted, break loop. - break; - } - } - } - if (len > 0 && end > 0) { - write_info.bw_len = len; - if (buf_write_bytes(&write_info) == FAIL) { - end = 0; // write error - } - nchars += len; - } - - if (!buf->b_p_fixeol && buf->b_p_eof) { - // write trailing CTRL-Z - (void)write_eintr(write_info.bw_fd, "\x1a", 1); - } - - // Stop when writing done or an error was encountered. - if (!checking_conversion || end == 0) { - break; - } - - // If no error happened until now, writing should be ok, so loop to - // really write the buffer. - } - - // If we started writing, finish writing. Also when an error was - // encountered. - if (!checking_conversion) { - // On many journalling file systems there is a bug that causes both the - // original and the backup file to be lost when halting the system right - // after writing the file. That's because only the meta-data is - // journalled. Syncing the file slows down the system, but assures it has - // been written to disk and we don't lose it. - // For a device do try the fsync() but don't complain if it does not work - // (could be a pipe). - // If the 'fsync' option is false, don't fsync(). Useful for laptops. - int error; - if (p_fs && (error = os_fsync(fd)) != 0 && !device - // fsync not supported on this storage. - && error != UV_ENOTSUP) { - err = set_err_arg(e_fsync, error); - end = 0; - } - -#ifdef UNIX - // When creating a new file, set its owner/group to that of the original - // file. Get the new device and inode number. - if (backup != NULL && !backup_copy) { - // don't change the owner when it's already OK, some systems remove - // permission or ACL stuff - FileInfo file_info; - if (!os_fileinfo(wfname, &file_info) - || file_info.stat.st_uid != file_info_old.stat.st_uid - || file_info.stat.st_gid != file_info_old.stat.st_gid) { - os_fchown(fd, (uv_uid_t)file_info_old.stat.st_uid, (uv_gid_t)file_info_old.stat.st_gid); - if (perm >= 0) { // Set permission again, may have changed. - (void)os_setperm(wfname, (int)perm); - } - } - buf_set_file_id(buf); - } else if (!buf->file_id_valid) { - // Set the file_id when creating a new file. - buf_set_file_id(buf); - } -#endif - - if ((error = os_close(fd)) != 0) { - err = set_err_arg(_("E512: Close failed: %s"), error); - end = 0; - } - -#ifdef UNIX - if (made_writable) { - perm &= ~0200; // reset 'w' bit for security reasons - } -#endif - if (perm >= 0) { // Set perm. of new file same as old file. - (void)os_setperm(wfname, (int)perm); - } - // Probably need to set the ACL before changing the user (can't set the - // ACL on a file the user doesn't own). - if (!backup_copy) { - os_set_acl(wfname, acl); - } - - if (wfname != fname) { - // The file was written to a temp file, now it needs to be converted - // with 'charconvert' to (overwrite) the output file. - if (end != 0) { - if (eval_charconvert("utf-8", fenc, wfname, fname) == FAIL) { - write_info.bw_conv_error = true; - end = 0; - } - } - os_remove(wfname); - xfree(wfname); - } - } - - if (end == 0) { - // Error encountered. - if (err.msg == NULL) { - if (write_info.bw_conv_error) { - if (write_info.bw_conv_error_lnum == 0) { - err = set_err(_("E513: write error, conversion failed " - "(make 'fenc' empty to override)")); - } else { - err = set_err(xmalloc(300)); - err.alloc = true; - vim_snprintf(err.msg, 300, // NOLINT(runtime/printf) - _("E513: write error, conversion failed in line %" PRIdLINENR - " (make 'fenc' empty to override)"), - write_info.bw_conv_error_lnum); - } - } else if (got_int) { - err = set_err(_(e_interr)); - } else { - err = set_err(_("E514: write error (file system full?)")); - } - } - - // If we have a backup file, try to put it in place of the new file, - // because the new file is probably corrupt. This avoids losing the - // original file when trying to make a backup when writing the file a - // second time. - // When "backup_copy" is set we need to copy the backup over the new - // file. Otherwise rename the backup file. - // If this is OK, don't give the extra warning message. - if (backup != NULL) { - if (backup_copy) { - // This may take a while, if we were interrupted let the user - // know we got the message. - if (got_int) { - msg(_(e_interr)); - ui_flush(); - } - - // copy the file. - if (os_copy(backup, fname, UV_FS_COPYFILE_FICLONE) - == 0) { - end = 1; // success - } - } else { - if (vim_rename(backup, fname) == 0) { - end = 1; - } - } - } - goto fail; - } - - lnum -= start; // compute number of written lines - no_wait_return--; // may wait for return now - -#if !defined(UNIX) - fname = sfname; // use shortname now, for the messages -#endif - if (!filtering) { - add_quoted_fname(IObuff, IOSIZE, buf, fname); - bool insert_space = false; - if (write_info.bw_conv_error) { - STRCAT(IObuff, _(" CONVERSION ERROR")); - insert_space = true; - if (write_info.bw_conv_error_lnum != 0) { - vim_snprintf_add(IObuff, IOSIZE, _(" in line %" PRId64 ";"), - (int64_t)write_info.bw_conv_error_lnum); - } - } else if (notconverted) { - STRCAT(IObuff, _("[NOT converted]")); - insert_space = true; - } else if (converted) { - STRCAT(IObuff, _("[converted]")); - insert_space = true; - } - if (device) { - STRCAT(IObuff, _("[Device]")); - insert_space = true; - } else if (newfile) { - STRCAT(IObuff, new_file_message()); - insert_space = true; - } - if (no_eol) { - msg_add_eol(); - insert_space = true; - } - // may add [unix/dos/mac] - if (msg_add_fileformat(fileformat)) { - insert_space = true; - } - msg_add_lines(insert_space, (long)lnum, nchars); // add line/char count - if (!shortmess(SHM_WRITE)) { - if (append) { - STRCAT(IObuff, shortmess(SHM_WRI) ? _(" [a]") : _(" appended")); - } else { - STRCAT(IObuff, shortmess(SHM_WRI) ? _(" [w]") : _(" written")); - } - } - - set_keep_msg(msg_trunc_attr(IObuff, false, 0), 0); - } - - // When written everything correctly: reset 'modified'. Unless not - // writing to the original file and '+' is not in 'cpoptions'. - if (reset_changed && whole && !append - && !write_info.bw_conv_error - && (overwriting || vim_strchr(p_cpo, CPO_PLUS) != NULL)) { - unchanged(buf, true, false); - const varnumber_T changedtick = buf_get_changedtick(buf); - if (buf->b_last_changedtick + 1 == changedtick) { - // b:changedtick may be incremented in unchanged() but that - // should not trigger a TextChanged event. - buf->b_last_changedtick = changedtick; - } - u_unchanged(buf); - u_update_save_nr(buf); - } - - // If written to the current file, update the timestamp of the swap file - // and reset the BF_WRITE_MASK flags. Also sets buf->b_mtime. - if (overwriting) { - ml_timestamp(buf); - if (append) { - buf->b_flags &= ~BF_NEW; - } else { - buf->b_flags &= ~BF_WRITE_MASK; - } - } - - // If we kept a backup until now, and we are in patch mode, then we make - // the backup file our 'original' file. - if (*p_pm && dobackup) { - char *const org = modname(fname, p_pm, false); - - if (backup != NULL) { - // If the original file does not exist yet - // the current backup file becomes the original file - if (org == NULL) { - emsg(_("E205: Patchmode: can't save original file")); - } else if (!os_path_exists(org)) { - vim_rename(backup, org); - XFREE_CLEAR(backup); // don't delete the file -#ifdef UNIX - os_file_settime(org, - (double)file_info_old.stat.st_atim.tv_sec, - (double)file_info_old.stat.st_mtim.tv_sec); -#endif - } - } else { - // If there is no backup file, remember that a (new) file was - // created. - int empty_fd; - - if (org == NULL - || (empty_fd = os_open(org, - O_CREAT | O_EXCL | O_NOFOLLOW, - perm < 0 ? 0666 : (perm & 0777))) < 0) { - emsg(_("E206: patchmode: can't touch empty original file")); - } else { - close(empty_fd); - } - } - if (org != NULL) { - os_setperm(org, os_getperm(fname) & 0777); - xfree(org); - } - } - - // Remove the backup unless 'backup' option is set - if (!p_bk && backup != NULL - && !write_info.bw_conv_error - && os_remove(backup) != 0) { - emsg(_("E207: Can't delete backup file")); - } - - goto nofail; - - // Finish up. We get here either after failure or success. -fail: - no_wait_return--; // may wait for return now -nofail: - - // Done saving, we accept changed buffer warnings again - buf->b_saving = false; - - xfree(backup); - if (buffer != smallbuf) { - xfree(buffer); - } - xfree(fenc_tofree); - xfree(write_info.bw_conv_buf); - if (write_info.bw_iconv_fd != (iconv_t)-1) { - iconv_close(write_info.bw_iconv_fd); - write_info.bw_iconv_fd = (iconv_t)-1; - } - os_free_acl(acl); - - if (err.msg != NULL) { - // - 100 to save some space for further error message -#ifndef UNIX - add_quoted_fname(IObuff, IOSIZE - 100, buf, sfname); -#else - add_quoted_fname(IObuff, IOSIZE - 100, buf, fname); -#endif - emit_err(&err); - - retval = FAIL; - if (end == 0) { - const int attr = HL_ATTR(HLF_E); // Set highlight for error messages. - msg_puts_attr(_("\nWARNING: Original file may be lost or damaged\n"), - attr | MSG_HIST); - msg_puts_attr(_("don't quit the editor until the file is successfully written!"), - attr | MSG_HIST); - - // Update the timestamp to avoid an "overwrite changed file" - // prompt when writing again. - if (os_fileinfo(fname, &file_info_old)) { - buf_store_file_info(buf, &file_info_old); - buf->b_mtime_read = buf->b_mtime; - buf->b_mtime_read_ns = buf->b_mtime_ns; - } - } - } - msg_scroll = msg_save; - - // When writing the whole file and 'undofile' is set, also write the undo - // file. - if (retval == OK && write_undo_file) { - uint8_t hash[UNDO_HASH_SIZE]; - - sha256_finish(&sha_ctx, hash); - u_write_undo(NULL, false, buf, hash); - } - - if (!should_abort(retval)) { - buf_write_do_post_autocmds(buf, fname, eap, append, filtering, reset_changed, whole); - if (aborting()) { // autocmds may abort script processing - retval = false; - } - } - - got_int |= prev_got_int; - - return retval; -} - /// Set the name of the current buffer. Use when the buffer doesn't have a /// name and a ":r" or ":w" command with a file name is used. -static int set_rw_fname(char *fname, char *sfname) +int set_rw_fname(char *fname, char *sfname) { buf_T *buf = curbuf; @@ -3697,8 +2107,8 @@ static int set_rw_fname(char *fname, char *sfname) /// @param[in] buf_len ret_buf length. /// @param[in] buf buf_T file name is coming from. /// @param[in] fname File name to write. -static void add_quoted_fname(char *const ret_buf, const size_t buf_len, const buf_T *const buf, - const char *fname) +void add_quoted_fname(char *const ret_buf, const size_t buf_len, const buf_T *const buf, + const char *fname) FUNC_ATTR_NONNULL_ARG(1) { if (fname == NULL) { @@ -3714,7 +2124,7 @@ static void add_quoted_fname(char *const ret_buf, const size_t buf_len, const bu /// @param eol_type line ending type /// /// @return true if something was appended. -static bool msg_add_fileformat(int eol_type) +bool msg_add_fileformat(int eol_type) { #ifndef USE_CRNL if (eol_type == EOL_DOS) { @@ -3758,33 +2168,13 @@ void msg_add_lines(int insert_space, long lnum, off_T nchars) } /// Append message for missing line separator to IObuff. -static void msg_add_eol(void) +void msg_add_eol(void) { STRCAT(IObuff, shortmess(SHM_LAST) ? _("[noeol]") : _("[Incomplete last line]")); } -/// Check modification time of file, before writing to it. -/// The size isn't checked, because using a tool like "gzip" takes care of -/// using the same timestamp but can't set the size. -static int check_mtime(buf_T *buf, FileInfo *file_info) -{ - if (buf->b_mtime_read != 0 - && time_differs(file_info, buf->b_mtime_read, buf->b_mtime_read_ns)) { - msg_scroll = true; // Don't overwrite messages here. - msg_silent = 0; // Must give this prompt. - // Don't use emsg() here, don't want to flush the buffers. - msg_attr(_("WARNING: The file has been changed since reading it!!!"), - HL_ATTR(HLF_E)); - if (ask_yesno(_("Do you really want to write to it"), true) == 'n') { - return FAIL; - } - msg_scroll = false; // Always overwrite the file message now. - } - return OK; -} - -static bool time_differs(const FileInfo *file_info, long mtime, long mtime_ns) FUNC_ATTR_CONST +bool time_differs(const FileInfo *file_info, long mtime, long mtime_ns) FUNC_ATTR_CONST { #if defined(__linux__) || defined(MSWIN) return file_info->stat.st_mtim.tv_nsec != mtime_ns @@ -3799,263 +2189,13 @@ static bool time_differs(const FileInfo *file_info, long mtime, long mtime_ns) F #endif } -static int buf_write_convert_with_iconv(struct bw_info *ip, char **bufp, int *lenp) -{ - const char *from; - size_t fromlen; - size_t tolen; - - int len = *lenp; - - // Convert with iconv(). - if (ip->bw_restlen > 0) { - // Need to concatenate the remainder of the previous call and - // the bytes of the current call. Use the end of the - // conversion buffer for this. - fromlen = (size_t)len + (size_t)ip->bw_restlen; - char *fp = ip->bw_conv_buf + ip->bw_conv_buflen - fromlen; - memmove(fp, ip->bw_rest, (size_t)ip->bw_restlen); - memmove(fp + ip->bw_restlen, *bufp, (size_t)len); - from = fp; - tolen = ip->bw_conv_buflen - fromlen; - } else { - from = *bufp; - fromlen = (size_t)len; - tolen = ip->bw_conv_buflen; - } - char *to = ip->bw_conv_buf; - - if (ip->bw_first) { - size_t save_len = tolen; - - // output the initial shift state sequence - (void)iconv(ip->bw_iconv_fd, NULL, NULL, &to, &tolen); - - // There is a bug in iconv() on Linux (which appears to be - // wide-spread) which sets "to" to NULL and messes up "tolen". - if (to == NULL) { - to = ip->bw_conv_buf; - tolen = save_len; - } - ip->bw_first = false; - } - - // If iconv() has an error or there is not enough room, fail. - if ((iconv(ip->bw_iconv_fd, (void *)&from, &fromlen, &to, &tolen) - == (size_t)-1 && ICONV_ERRNO != ICONV_EINVAL) - || fromlen > CONV_RESTLEN) { - ip->bw_conv_error = true; - return FAIL; - } - - // copy remainder to ip->bw_rest[] to be used for the next call. - if (fromlen > 0) { - memmove(ip->bw_rest, (void *)from, fromlen); - } - ip->bw_restlen = (int)fromlen; - - *bufp = ip->bw_conv_buf; - *lenp = (int)(to - ip->bw_conv_buf); - - return OK; -} - -static int buf_write_convert(struct bw_info *ip, char **bufp, int *lenp) -{ - int flags = ip->bw_flags; // extra flags - - if (flags & FIO_UTF8) { - // Convert latin1 in the buffer to UTF-8 in the file. - char *p = ip->bw_conv_buf; // translate to buffer - for (int wlen = 0; wlen < *lenp; wlen++) { - p += utf_char2bytes((uint8_t)(*bufp)[wlen], p); - } - *bufp = ip->bw_conv_buf; - *lenp = (int)(p - ip->bw_conv_buf); - } else if (flags & (FIO_UCS4 | FIO_UTF16 | FIO_UCS2 | FIO_LATIN1)) { - unsigned c; - int n = 0; - // Convert UTF-8 bytes in the buffer to UCS-2, UCS-4, UTF-16 or - // Latin1 chars in the file. - // translate in-place (can only get shorter) or to buffer - char *p = flags & FIO_LATIN1 ? *bufp : ip->bw_conv_buf; - for (int wlen = 0; wlen < *lenp; wlen += n) { - if (wlen == 0 && ip->bw_restlen != 0) { - // Use remainder of previous call. Append the start of - // buf[] to get a full sequence. Might still be too - // short! - int l = MIN(*lenp, CONV_RESTLEN - ip->bw_restlen); - memmove(ip->bw_rest + ip->bw_restlen, *bufp, (size_t)l); - n = utf_ptr2len_len((char *)ip->bw_rest, ip->bw_restlen + l); - if (n > ip->bw_restlen + *lenp) { - // We have an incomplete byte sequence at the end to - // be written. We can't convert it without the - // remaining bytes. Keep them for the next call. - if (ip->bw_restlen + *lenp > CONV_RESTLEN) { - return FAIL; - } - ip->bw_restlen += *lenp; - break; - } - if (n > 1) { - c = (unsigned)utf_ptr2char((char *)ip->bw_rest); - } else { - c = ip->bw_rest[0]; - } - if (n >= ip->bw_restlen) { - n -= ip->bw_restlen; - ip->bw_restlen = 0; - } else { - ip->bw_restlen -= n; - memmove(ip->bw_rest, ip->bw_rest + n, - (size_t)ip->bw_restlen); - n = 0; - } - } else { - n = utf_ptr2len_len(*bufp + wlen, *lenp - wlen); - if (n > *lenp - wlen) { - // We have an incomplete byte sequence at the end to - // be written. We can't convert it without the - // remaining bytes. Keep them for the next call. - if (*lenp - wlen > CONV_RESTLEN) { - return FAIL; - } - ip->bw_restlen = *lenp - wlen; - memmove(ip->bw_rest, *bufp + wlen, - (size_t)ip->bw_restlen); - break; - } - if (n > 1) { - c = (unsigned)utf_ptr2char(*bufp + wlen); - } else { - c = (uint8_t)(*bufp)[wlen]; - } - } - - if (ucs2bytes(c, &p, flags) && !ip->bw_conv_error) { - ip->bw_conv_error = true; - ip->bw_conv_error_lnum = ip->bw_start_lnum; - } - if (c == NL) { - ip->bw_start_lnum++; - } - } - if (flags & FIO_LATIN1) { - *lenp = (int)(p - *bufp); - } else { - *bufp = ip->bw_conv_buf; - *lenp = (int)(p - ip->bw_conv_buf); - } - } - - if (ip->bw_iconv_fd != (iconv_t)-1) { - if (buf_write_convert_with_iconv(ip, bufp, lenp) == FAIL) { - return FAIL; - } - } - - return OK; -} - -/// Call write() to write a number of bytes to the file. -/// Handles 'encoding' conversion. -/// -/// @return FAIL for failure, OK otherwise. -static int buf_write_bytes(struct bw_info *ip) -{ - char *buf = ip->bw_buf; // data to write - int len = ip->bw_len; // length of data - int flags = ip->bw_flags; // extra flags - - // Skip conversion when writing the BOM. - if (!(flags & FIO_NOCONVERT)) { - if (buf_write_convert(ip, &buf, &len) == FAIL) { - return FAIL; - } - } - - if (ip->bw_fd < 0) { - // Only checking conversion, which is OK if we get here. - return OK; - } - int wlen = (int)write_eintr(ip->bw_fd, buf, (size_t)len); - return (wlen < len) ? FAIL : OK; -} - -/// Convert a Unicode character to bytes. -/// -/// @param c character to convert -/// @param[in,out] pp pointer to store the result at -/// @param flags FIO_ flags that specify which encoding to use -/// -/// @return true for an error, false when it's OK. -static bool ucs2bytes(unsigned c, char **pp, int flags) - FUNC_ATTR_NONNULL_ALL -{ - uint8_t *p = (uint8_t *)(*pp); - bool error = false; - - if (flags & FIO_UCS4) { - if (flags & FIO_ENDIAN_L) { - *p++ = (uint8_t)c; - *p++ = (uint8_t)(c >> 8); - *p++ = (uint8_t)(c >> 16); - *p++ = (uint8_t)(c >> 24); - } else { - *p++ = (uint8_t)(c >> 24); - *p++ = (uint8_t)(c >> 16); - *p++ = (uint8_t)(c >> 8); - *p++ = (uint8_t)c; - } - } else if (flags & (FIO_UCS2 | FIO_UTF16)) { - if (c >= 0x10000) { - if (flags & FIO_UTF16) { - // Make two words, ten bits of the character in each. First - // word is 0xd800 - 0xdbff, second one 0xdc00 - 0xdfff - c -= 0x10000; - if (c >= 0x100000) { - error = true; - } - int cc = (int)(((c >> 10) & 0x3ff) + 0xd800); - if (flags & FIO_ENDIAN_L) { - *p++ = (uint8_t)cc; - *p++ = (uint8_t)(cc >> 8); - } else { - *p++ = (uint8_t)(cc >> 8); - *p++ = (uint8_t)cc; - } - c = (c & 0x3ff) + 0xdc00; - } else { - error = true; - } - } - if (flags & FIO_ENDIAN_L) { - *p++ = (uint8_t)c; - *p++ = (uint8_t)(c >> 8); - } else { - *p++ = (uint8_t)(c >> 8); - *p++ = (uint8_t)c; - } - } else { // Latin1 - if (c >= 0x100) { - error = true; - *p++ = 0xBF; - } else { - *p++ = (uint8_t)c; - } - } - - *pp = (char *)p; - return error; -} - /// Return true if file encoding "fenc" requires conversion from or to /// 'encoding'. /// /// @param fenc file encoding to check /// /// @return true if conversion is required -static bool need_conversion(const char *fenc) +bool need_conversion(const char *fenc) FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT { int same_encoding; @@ -4086,7 +2226,7 @@ static bool need_conversion(const char *fenc) /// use 'encoding'. /// /// @param name string to check for encoding -static int get_fio_flags(const char *name) +int get_fio_flags(const char *name) { if (*name == NUL) { name = p_enc; @@ -4166,30 +2306,6 @@ static char *check_for_bom(const char *p_in, int size, int *lenp, int flags) return name; } -/// Generate a BOM in "buf[4]" for encoding "name". -/// -/// @return the length of the BOM (zero when no BOM). -static int make_bom(char *buf_in, char *name) -{ - uint8_t *buf = (uint8_t *)buf_in; - int flags = get_fio_flags(name); - - // Can't put a BOM in a non-Unicode file. - if (flags == FIO_LATIN1 || flags == 0) { - return 0; - } - - if (flags == FIO_UTF8) { // UTF-8 - buf[0] = 0xef; - buf[1] = 0xbb; - buf[2] = 0xbf; - return 3; - } - char *p = (char *)buf; - (void)ucs2bytes(0xfeff, &p, flags); - return (int)((uint8_t *)p - buf); -} - /// Shorten filename of a buffer. /// /// @param force when true: Use full path from now on for files currently being @@ -4600,7 +2716,7 @@ int vim_rename(const char *from, const char *to) // Avoid xmalloc() here as vim_rename() is called by buf_write() when nvim // is `preserve_exit()`ing. - char *buffer = try_malloc(BUFSIZE); + char *buffer = try_malloc(WRITEBUFSIZE); if (buffer == NULL) { close(fd_out); close(fd_in); @@ -4609,7 +2725,7 @@ int vim_rename(const char *from, const char *to) } int n; - while ((n = (int)read_eintr(fd_in, buffer, BUFSIZE)) > 0) { + while ((n = (int)read_eintr(fd_in, buffer, WRITEBUFSIZE)) > 0) { if (write_eintr(fd_out, buffer, (size_t)n) != n) { errmsg = _("E208: Error writing to \"%s\""); break; @@ -5368,7 +3484,7 @@ char *vim_gettempdir(void) static int notfound = 0; bool exists = false; if (vim_tempdir == NULL || !(exists = os_isdir(vim_tempdir))) { - if (vim_tempdir != NULL && !exists) { + if (vim_tempdir != NULL) { notfound++; if (notfound == 1) { ELOG("tempdir disappeared (antivirus or broken cleanup job?): %s", vim_tempdir); diff --git a/src/nvim/fileio.h b/src/nvim/fileio.h index 3e51e361ac..a4566d754b 100644 --- a/src/nvim/fileio.h +++ b/src/nvim/fileio.h @@ -20,8 +20,29 @@ typedef varnumber_T (*CheckItem)(void *expr, const char *name); +enum { + FIO_LATIN1 = 0x01, // convert Latin1 + FIO_UTF8 = 0x02, // convert UTF-8 + FIO_UCS2 = 0x04, // convert UCS-2 + FIO_UCS4 = 0x08, // convert UCS-4 + FIO_UTF16 = 0x10, // convert UTF-16 + FIO_ENDIAN_L = 0x80, // little endian + FIO_NOCONVERT = 0x2000, // skip encoding conversion + FIO_UCSBOM = 0x4000, // check for BOM at start of file + FIO_ALL = -1, // allow all formats +}; + +// When converting, a read() or write() may leave some bytes to be converted +// for the next call. The value is guessed... +#define CONV_RESTLEN 30 + +#define WRITEBUFSIZE 8192 // size of normal write buffer + +// We have to guess how much a sequence of bytes may expand when converting +// with iconv() to be able to allocate a buffer. +#define ICONV_MULT 8 + #ifdef INCLUDE_GENERATED_DECLARATIONS -// Events for autocommands # include "fileio.h.generated.h" #endif #endif // NVIM_FILEIO_H diff --git a/src/nvim/log.c b/src/nvim/log.c index 4de0c4d88c..afe3d95e9a 100644 --- a/src/nvim/log.c +++ b/src/nvim/log.c @@ -131,7 +131,7 @@ void log_unlock(void) /// @return true if log was emitted normally, false if failed or recursive bool logmsg(int log_level, const char *context, const char *func_name, int line_num, bool eol, const char *fmt, ...) - FUNC_ATTR_UNUSED FUNC_ATTR_PRINTF(6, 7) + FUNC_ATTR_PRINTF(6, 7) { static bool recursive = false; static bool did_msg = false; // Showed recursion message? diff --git a/src/nvim/lua/executor.c b/src/nvim/lua/executor.c index 3646fd876b..13a0c4b0cd 100644 --- a/src/nvim/lua/executor.c +++ b/src/nvim/lua/executor.c @@ -377,7 +377,8 @@ static int nlua_schedule(lua_State *const lstate) // Dummy timer callback. Used by f_wait(). static void dummy_timer_due_cb(TimeWatcher *tw, void *data) -{} +{ +} // Dummy timer close callback. Used by f_wait(). static void dummy_timer_close_cb(TimeWatcher *tw, void *data) diff --git a/src/nvim/macros.h b/src/nvim/macros.h index 242e3c381a..57cb298572 100644 --- a/src/nvim/macros.h +++ b/src/nvim/macros.h @@ -91,7 +91,7 @@ # define MCH_OPEN_RW(n, f) os_open((n), (f), 0) #endif -#define REPLACE_NORMAL(s) (((s) & REPLACE_FLAG) && !((s) & VREPLACE_FLAG)) +#define REPLACE_NORMAL(s) (((s)& REPLACE_FLAG) && !((s)& VREPLACE_FLAG)) // MB_PTR_ADV(): advance a pointer to the next character, taking care of // multi-byte characters if needed. Skip over composing chars. diff --git a/src/nvim/memline.c b/src/nvim/memline.c index 2528b5c0d3..cb58cbc86f 100644 --- a/src/nvim/memline.c +++ b/src/nvim/memline.c @@ -1366,9 +1366,7 @@ int recover_names(char *fname, bool do_list, list_T *ret_list, int nr, char **fn } else if (ret_list != NULL) { for (int i = 0; i < num_files; i++) { char *name = concat_fnames(dir_name, files[i], true); - if (name != NULL) { - tv_list_append_allocated_string(ret_list, name); - } + tv_list_append_allocated_string(ret_list, name); } } else { file_count += num_files; diff --git a/src/nvim/msgpack_rpc/unpacker.c b/src/nvim/msgpack_rpc/unpacker.c index 44a16beb48..25edf2e21d 100644 --- a/src/nvim/msgpack_rpc/unpacker.c +++ b/src/nvim/msgpack_rpc/unpacker.c @@ -179,7 +179,8 @@ static void api_parse_enter(mpack_parser_t *parser, mpack_node_t *node) } static void api_parse_exit(mpack_parser_t *parser, mpack_node_t *node) -{} +{ +} void unpacker_init(Unpacker *p) { diff --git a/src/nvim/normal.c b/src/nvim/normal.c index 5fcdf5d4c1..2bafeccba4 100644 --- a/src/nvim/normal.c +++ b/src/nvim/normal.c @@ -2180,7 +2180,8 @@ static void nv_ignore(cmdarg_T *cap) /// Command character that doesn't do anything, but unlike nv_ignore() does /// start edit(). Used for "startinsert" executed while starting up. static void nv_nop(cmdarg_T *cap) -{} +{ +} /// Command character doesn't exist. static void nv_error(cmdarg_T *cap) diff --git a/src/nvim/option.c b/src/nvim/option.c index 3b674ce726..aff824e9e2 100644 --- a/src/nvim/option.c +++ b/src/nvim/option.c @@ -3257,8 +3257,7 @@ static void showoptions(bool all, int opt_flags) } else { varp = get_varp(p); } - if (varp != NULL - && (all == 1 || (all == 0 && !optval_default(p, varp)))) { + if (varp != NULL && (all || !optval_default(p, varp))) { int len; if (opt_flags & OPT_ONECOLUMN) { len = Columns; diff --git a/src/nvim/os/os_defs.h b/src/nvim/os/os_defs.h index 9e201f1dfa..c595013a21 100644 --- a/src/nvim/os/os_defs.h +++ b/src/nvim/os/os_defs.h @@ -57,49 +57,49 @@ // stat macros #ifndef S_ISDIR # ifdef S_IFDIR -# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) +# define S_ISDIR(m) (((m)& S_IFMT) == S_IFDIR) # else # define S_ISDIR(m) 0 # endif #endif #ifndef S_ISREG # ifdef S_IFREG -# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) +# define S_ISREG(m) (((m)& S_IFMT) == S_IFREG) # else # define S_ISREG(m) 0 # endif #endif #ifndef S_ISBLK # ifdef S_IFBLK -# define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) +# define S_ISBLK(m) (((m)& S_IFMT) == S_IFBLK) # else # define S_ISBLK(m) 0 # endif #endif #ifndef S_ISSOCK # ifdef S_IFSOCK -# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) +# define S_ISSOCK(m) (((m)& S_IFMT) == S_IFSOCK) # else # define S_ISSOCK(m) 0 # endif #endif #ifndef S_ISFIFO # ifdef S_IFIFO -# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) +# define S_ISFIFO(m) (((m)& S_IFMT) == S_IFIFO) # else # define S_ISFIFO(m) 0 # endif #endif #ifndef S_ISCHR # ifdef S_IFCHR -# define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) +# define S_ISCHR(m) (((m)& S_IFMT) == S_IFCHR) # else # define S_ISCHR(m) 0 # endif #endif #ifndef S_ISLNK # ifdef S_IFLNK -# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) +# define S_ISLNK(m) (((m)& S_IFMT) == S_IFLNK) # else # define S_ISLNK(m) 0 # endif diff --git a/src/nvim/os/pty_process_win.c b/src/nvim/os/pty_process_win.c index 6233a90638..2e850f8c22 100644 --- a/src/nvim/os/pty_process_win.c +++ b/src/nvim/os/pty_process_win.c @@ -172,11 +172,13 @@ void pty_process_close(PtyProcess *ptyproc) void pty_process_close_master(PtyProcess *ptyproc) FUNC_ATTR_NONNULL_ALL -{} +{ +} void pty_process_teardown(Loop *loop) FUNC_ATTR_NONNULL_ALL -{} +{ +} static void pty_process_connect_cb(uv_connect_t *req, int status) FUNC_ATTR_NONNULL_ALL diff --git a/src/nvim/path.c b/src/nvim/path.c index cf7cd98829..21a3a67e24 100644 --- a/src/nvim/path.c +++ b/src/nvim/path.c @@ -620,7 +620,7 @@ static size_t do_path_expand(garray_T *gap, const char *path, size_t wildoff, in static int stardepth = 0; // depth for "**" expansion // Expanding "**" may take a long time, check for CTRL-C. - if (stardepth > 0) { + if (stardepth > 0 && !(flags & EW_NOBREAK)) { os_breakcheck(); if (got_int) { return 0; @@ -701,7 +701,8 @@ static size_t do_path_expand(garray_T *gap, const char *path, size_t wildoff, in if (flags & (EW_NOERROR | EW_NOTWILD)) { emsg_silent++; } - regmatch.regprog = vim_regcomp(pat, RE_MAGIC); + bool nobreak = (flags & EW_NOBREAK); + regmatch.regprog = vim_regcomp(pat, RE_MAGIC | (nobreak ? RE_NOBREAK : 0)); if (flags & (EW_NOERROR | EW_NOTWILD)) { emsg_silent--; } diff --git a/src/nvim/path.h b/src/nvim/path.h index c8d192dffe..eaadc7f37d 100644 --- a/src/nvim/path.h +++ b/src/nvim/path.h @@ -26,6 +26,7 @@ #define EW_DODOT 0x4000 // also files starting with a dot #define EW_EMPTYOK 0x8000 // no matches is not an error #define EW_NOTENV 0x10000 // do not expand environment variables +#define EW_NOBREAK 0x20000 // do not invoke breakcheck /// Return value for the comparison of two files. Also @see path_full_compare. typedef enum file_comparison { diff --git a/src/nvim/plines.c b/src/nvim/plines.c index a3e5640b18..64a2e0bb61 100644 --- a/src/nvim/plines.c +++ b/src/nvim/plines.c @@ -302,7 +302,8 @@ void init_chartabsize_arg(chartabsize_T *cts, win_T *wp, linenr_T lnum FUNC_ATTR /// Free any allocated item in "cts". void clear_chartabsize_arg(chartabsize_T *cts) -{} +{ +} /// like win_chartabsize(), but also check for line breaks on the screen /// diff --git a/src/nvim/regexp.c b/src/nvim/regexp.c index 3ed32bf8af..b5cffb17d0 100644 --- a/src/nvim/regexp.c +++ b/src/nvim/regexp.c @@ -989,6 +989,8 @@ typedef struct { // flag in the regexp. Defaults to false, always. bool reg_icombine; + bool reg_nobreak; + // Copy of "rmm_maxcol": maximum column to search for a match. Zero when // there is no maximum. colnr_T reg_maxcol; @@ -1011,6 +1013,13 @@ typedef struct { static regexec_T rex; static bool rex_in_use = false; +static void reg_breakcheck(void) +{ + if (!rex.reg_nobreak) { + fast_breakcheck(); + } +} + // Return true if character 'c' is included in 'iskeyword' option for // "reg_buf" buffer. static bool reg_iswordc(int c) @@ -1221,7 +1230,7 @@ static void reg_nextline(void) { rex.line = (uint8_t *)reg_getline(++rex.lnum); rex.input = rex.line; - fast_breakcheck(); + reg_breakcheck(); } // Check whether a backreference matches. @@ -2265,6 +2274,7 @@ static void init_regexec_multi(regmmatch_T *rmp, win_T *win, buf_T *buf, linenr_ rex.reg_line_lbr = false; rex.reg_ic = rmp->rmm_ic; rex.reg_icombine = false; + rex.reg_nobreak = rmp->regprog->re_flags & RE_NOBREAK; rex.reg_maxcol = rmp->rmm_maxcol; } diff --git a/src/nvim/regexp.h b/src/nvim/regexp.h index dcc58fa34c..95296a5f90 100644 --- a/src/nvim/regexp.h +++ b/src/nvim/regexp.h @@ -10,6 +10,7 @@ #define RE_STRING 2 ///< match in string instead of buffer text #define RE_STRICT 4 ///< don't allow [abc] without ] #define RE_AUTO 8 ///< automatic engine selection +#define RE_NOBREAK 16 ///< don't use breakcheck functions // values for reg_do_extmatch #define REX_SET 1 ///< to allow \z\(...\), diff --git a/src/nvim/regexp_bt.c b/src/nvim/regexp_bt.c index af3d93f7c4..a6f554d4ae 100644 --- a/src/nvim/regexp_bt.c +++ b/src/nvim/regexp_bt.c @@ -3539,7 +3539,7 @@ static bool regmatch(uint8_t *scan, proftime_T *tm, int *timed_out) for (;;) { // Some patterns may take a long time to match, e.g., "\([a-z]\+\)\+Q". // Allow interrupting them with CTRL-C. - fast_breakcheck(); + reg_breakcheck(); #ifdef REGEXP_DEBUG if (scan != NULL && regnarrate) { @@ -4792,7 +4792,7 @@ static bool regmatch(uint8_t *scan, proftime_T *tm, int *timed_out) break; } rex.input = rex.line + strlen((char *)rex.line); - fast_breakcheck(); + reg_breakcheck(); } else { MB_PTR_BACK(rex.line, rex.input); } @@ -5155,6 +5155,7 @@ static int bt_regexec_nl(regmatch_T *rmp, uint8_t *line, colnr_T col, bool line_ rex.reg_win = NULL; rex.reg_ic = rmp->rm_ic; rex.reg_icombine = false; + rex.reg_nobreak = rmp->regprog->re_flags & RE_NOBREAK; rex.reg_maxcol = 0; long r = bt_regexec_both(line, col, NULL, NULL); diff --git a/src/nvim/regexp_nfa.c b/src/nvim/regexp_nfa.c index 260d40a202..69d4f00ee5 100644 --- a/src/nvim/regexp_nfa.c +++ b/src/nvim/regexp_nfa.c @@ -5890,7 +5890,7 @@ static int nfa_regmatch(nfa_regprog_T *prog, nfa_state_T *start, regsubs_T *subm regsubs_T *r; // Some patterns may take a long time to match, especially when using // recursive_regmatch(). Allow interrupting them with CTRL-C. - fast_breakcheck(); + reg_breakcheck(); if (got_int) { return false; } @@ -6020,7 +6020,7 @@ static int nfa_regmatch(nfa_regprog_T *prog, nfa_state_T *start, regsubs_T *subm for (listidx = 0; listidx < thislist->n; listidx++) { // If the list gets very long there probably is something wrong. // At least allow interrupting with CTRL-C. - fast_breakcheck(); + reg_breakcheck(); if (got_int) { break; } @@ -7168,7 +7168,7 @@ nextchar: } // Allow interrupting with CTRL-C. - line_breakcheck(); + reg_breakcheck(); if (got_int) { break; } @@ -7591,6 +7591,7 @@ static int nfa_regexec_nl(regmatch_T *rmp, uint8_t *line, colnr_T col, bool line rex.reg_win = NULL; rex.reg_ic = rmp->rm_ic; rex.reg_icombine = false; + rex.reg_nobreak = rmp->regprog->re_flags & RE_NOBREAK; rex.reg_maxcol = 0; return (int)nfa_regexec_both(line, col, NULL, NULL); } diff --git a/src/nvim/runtime.c b/src/nvim/runtime.c index 401139a89a..a6ed5c7410 100644 --- a/src/nvim/runtime.c +++ b/src/nvim/runtime.c @@ -470,7 +470,8 @@ int do_in_cached_path(char *name, int flags, DoInRuntimepathCB callback, void *c } int ew_flags = ((flags & DIP_DIR) ? EW_DIR : EW_FILE) - | (flags & DIP_DIRFILE) ? (EW_DIR|EW_FILE) : 0; + | ((flags & DIP_DIRFILE) ? (EW_DIR|EW_FILE) : 0) + | EW_NOBREAK; // Expand wildcards, invoke the callback for each match. char *(pat[]) = { buf }; @@ -670,7 +671,7 @@ static void expand_rtp_entry(RuntimeSearchPath *search_path, Map(String, handle_ int num_files; char **files; char *(pat[]) = { entry }; - if (gen_expand_wildcards(1, pat, &num_files, &files, EW_DIR) == OK) { + if (gen_expand_wildcards(1, pat, &num_files, &files, EW_DIR | EW_NOBREAK) == OK) { for (int i = 0; i < num_files; i++) { push_path(search_path, rtp_used, files[i], after); } diff --git a/src/nvim/tui/tui.c b/src/nvim/tui/tui.c index df7c87ad60..eecaa8c55a 100644 --- a/src/nvim/tui/tui.c +++ b/src/nvim/tui/tui.c @@ -1369,7 +1369,8 @@ void tui_set_title(TUIData *tui, String title) } void tui_set_icon(TUIData *tui, String icon) -{} +{ +} void tui_screenshot(TUIData *tui, String path) { diff --git a/src/uncrustify.cfg b/src/uncrustify.cfg index 9c6b6bac6c..83b63dbdf6 100644 --- a/src/uncrustify.cfg +++ b/src/uncrustify.cfg @@ -1,4 +1,4 @@ -# Uncrustify-0.75.1_f +# Uncrustify-0.76.0_f # # General options @@ -447,15 +447,15 @@ sp_after_comma = add # ignore/add/remove/force/not_defined # Default: remove sp_before_comma = remove # ignore/add/remove/force/not_defined -# (C#) Add or remove space between ',' and ']' in multidimensional array type +# (C#, Vala) Add or remove space between ',' and ']' in multidimensional array type # like 'int[,,]'. sp_after_mdatype_commas = ignore # ignore/add/remove/force/not_defined -# (C#) Add or remove space between '[' and ',' in multidimensional array type +# (C#, Vala) Add or remove space between '[' and ',' in multidimensional array type # like 'int[,,]'. sp_before_mdatype_commas = ignore # ignore/add/remove/force/not_defined -# (C#) Add or remove space between ',' in multidimensional array type +# (C#, Vala) Add or remove space between ',' in multidimensional array type # like 'int[,,]'. sp_between_mdatype_commas = ignore # ignore/add/remove/force/not_defined @@ -497,7 +497,7 @@ sp_paren_qualifier = ignore # ignore/add/remove/force/not_defined sp_paren_noexcept = ignore # ignore/add/remove/force/not_defined # Add or remove space after class ':'. -sp_after_class_colon = ignore # ignore/add/remove/force/not_defined +sp_after_class_colon = remove # ignore/add/remove/force/not_defined # Add or remove space before class ':'. sp_before_class_colon = ignore # ignore/add/remove/force/not_defined @@ -816,7 +816,7 @@ sp_inv = remove # ignore/add/remove/force/not_defined # affect the spacing after a '&' that is part of a type. # # Default: remove -sp_addr = remove # ignore/add/remove/force/not_defined +sp_addr = ignore # ignore/add/remove/force/not_defined # Add or remove space around the '.' or '->' operators. # @@ -995,7 +995,7 @@ sp_between_new_paren = ignore # ignore/add/remove/force/not_defined # Add or remove space between ')' and type in 'new(foo) BAR'. sp_after_newop_paren = ignore # ignore/add/remove/force/not_defined -# Add or remove space inside parenthesis of the new operator +# Add or remove space inside parentheses of the new operator # as in 'new(foo) BAR'. sp_inside_newop_paren = ignore # ignore/add/remove/force/not_defined @@ -1162,7 +1162,7 @@ indent_extern = false # true/false indent_class = false # true/false # Whether to ignore indent for the leading base class colon. -indent_ignore_before_class_colon = false # true/false +indent_ignore_before_class_colon = true # true/false # Additional indent before the leading base class colon. # Negative values decrease indent down to the first column. @@ -1344,7 +1344,7 @@ indent_col1_multi_string_literal = false # true/false indent_comment_align_thresh = 3 # unsigned number # Whether to ignore indent for goto labels. -indent_ignore_label = false # true/false +indent_ignore_label = true # true/false # How to indent goto labels. Requires indent_ignore_label=false. # @@ -1537,7 +1537,7 @@ indent_using_block = true # true/false # How to indent the continuation of ternary operator. # # 0: Off (default) -# 1: When the `if_false` is a continuation, indent it under `if_false` +# 1: When the `if_false` is a continuation, indent it under the `if_true` branch # 2: When the `:` is a continuation, indent it under `?` indent_ternary_operator = 0 # unsigned number @@ -1565,10 +1565,15 @@ donot_indent_func_def_close_paren = false # true/false # Newline adding and removing options # -# Whether to collapse empty blocks between '{' and '}'. -# If true, overrides nl_inside_empty_func +# Whether to collapse empty blocks between '{' and '}' except for functions. +# Use nl_collapse_empty_body_functions to specify how empty function braces +# should be formatted. nl_collapse_empty_body = true # true/false +# Whether to collapse empty blocks between '{' and '}' for functions only. +# If true, overrides nl_inside_empty_func. +nl_collapse_empty_body_functions = false # true/false + # Don't split one-line braced assignments, as in 'foo_t f = { 1, 2 };'. nl_assign_leave_one_liners = false # true/false @@ -2021,6 +2026,12 @@ nl_template_end = false # true/false # See nl_oc_msg_leave_one_liner. nl_oc_msg_args = false # true/false +# (OC) Minimum number of Objective-C message parameters before applying nl_oc_msg_args. +nl_oc_msg_args_min_params = 0 # unsigned number + +# (OC) Max code width of Objective-C message before applying nl_oc_msg_args. +nl_oc_msg_args_max_code_width = 0 # unsigned number + # Add or remove newline between function signature and '{'. nl_fdef_brace = force # ignore/add/remove/force/not_defined @@ -2034,6 +2045,9 @@ nl_cpp_ldef_brace = ignore # ignore/add/remove/force/not_defined # Add or remove newline between 'return' and the return expression. nl_return_expr = remove # ignore/add/remove/force/not_defined +# Add or remove newline between 'throw' and the throw expression. +nl_throw_expr = ignore # ignore/add/remove/force/not_defined + # Whether to add a newline after semicolons, except in 'for' statements. nl_after_semicolon = false # true/false @@ -2227,7 +2241,7 @@ nl_max_blank_in_func = 0 # unsigned number # The number of newlines inside an empty function body. # This option overrides eat_blanks_after_open_brace and # eat_blanks_before_close_brace, but is ignored when -# nl_collapse_empty_body=true +# nl_collapse_empty_body_functions=true nl_inside_empty_func = 0 # unsigned number # The number of newlines before a function prototype. @@ -2279,12 +2293,6 @@ nl_after_func_body_class = 0 # unsigned number # Overrides nl_after_func_body and nl_after_func_body_class. nl_after_func_body_one_liner = 0 # unsigned number -# The number of blank lines after a block of variable definitions at the top -# of a function body. -# -# 0: No change (default). -nl_func_var_def_blk = 0 # unsigned number - # The number of newlines before a block of typedefs. If nl_after_access_spec # is non-zero, that option takes precedence. # @@ -2301,15 +2309,27 @@ nl_typedef_blk_end = 0 # unsigned number # 0: No change (default). nl_typedef_blk_in = 0 # unsigned number -# The number of empty newlines before a block of variable definitions +# The minimum number of blank lines after a block of variable definitions +# at the top of a function body. If any preprocessor directives appear +# between the opening brace of the function and the variable block, then +# it is considered as not at the top of the function.Newlines are added +# before trailing preprocessor directives, if any exist. +# +# 0: No change (default). +nl_var_def_blk_end_func_top = 0 # unsigned number + +# The minimum number of empty newlines before a block of variable definitions # not at the top of a function body. If nl_after_access_spec is non-zero, -# that option takes precedence. +# that option takes precedence. Newlines are not added at the top of the +# file or just after an opening brace. Newlines are added above any +# preprocessor directives before the block. # # 0: No change (default). nl_var_def_blk_start = 0 # unsigned number -# The number of empty newlines after a block of variable definitions -# not at the top of a function body. +# The minimum number of empty newlines after a block of variable definitions +# not at the top of a function body. Newlines are not added if the block +# is at the bottom of the file or just before a preprocessor directive. # # 0: No change (default). nl_var_def_blk_end = 0 # unsigned number @@ -2625,11 +2645,6 @@ align_var_def_inline = false # true/false # 0: Don't align (default). align_assign_span = 0 # unsigned number -# The span for aligning on '{' in braced init list. -# -# 0: Don't align (default). -align_braced_init_list_span = 0 # unsigned number - # The span for aligning on '=' in function prototype modifier. # # 0: Don't align (default). @@ -2646,6 +2661,11 @@ align_assign_thresh = 0 # number # Depends on 'align_assign_span' and 'align_assign_thresh' settings. align_assign_on_multi_var_defs = false # true/false +# The span for aligning on '{' in braced init list. +# +# 0: Don't align (default). +align_braced_init_list_span = 0 # unsigned number + # The threshold for aligning on '{' in braced init list. # Use a negative number for absolute thresholds. # @@ -3099,9 +3119,12 @@ mod_full_brace_nl = 0 # unsigned number # mod_full_brace_function mod_full_brace_nl_block_rem_mlcond = false # true/false -# Add or remove unnecessary parenthesis on 'return' statement. +# Add or remove unnecessary parentheses on 'return' statement. mod_paren_on_return = ignore # ignore/add/remove/force/not_defined +# Add or remove unnecessary parentheses on 'throw' statement. +mod_paren_on_throw = ignore # ignore/add/remove/force/not_defined + # (Pawn) Whether to change optional semicolons to real semicolons. mod_pawn_semicolon = false # true/false @@ -3190,7 +3213,7 @@ mod_move_case_return = false # true/false # Add or remove braces around a fully braced case statement. Will only remove # braces if there are no variable declarations in the block. -mod_case_brace = remove # ignore/add/remove/force/not_defined +mod_case_brace = ignore # ignore/add/remove/force/not_defined # Whether to remove a void 'return;' that appears as the last statement in a # function. @@ -3199,6 +3222,49 @@ mod_remove_empty_return = false # true/false # Add or remove the comma after the last value of an enumeration. mod_enum_last_comma = add # ignore/add/remove/force/not_defined +# Syntax to use for infinite loops. +# +# 0: Leave syntax alone (default) +# 1: Rewrite as `for(;;)` +# 2: Rewrite as `while(true)` +# 3: Rewrite as `do`...`while(true);` +# 4: Rewrite as `while(1)` +# 5: Rewrite as `do`...`while(1);` +# +# Infinite loops that do not already match one of these syntaxes are ignored. +# Other options that affect loop formatting will be applied after transforming +# the syntax. +mod_infinite_loop = 0 # unsigned number + +# Add or remove the 'int' keyword in 'int short'. +mod_int_short = ignore # ignore/add/remove/force/not_defined + +# Add or remove the 'int' keyword in 'short int'. +mod_short_int = ignore # ignore/add/remove/force/not_defined + +# Add or remove the 'int' keyword in 'int long'. +mod_int_long = ignore # ignore/add/remove/force/not_defined + +# Add or remove the 'int' keyword in 'long int'. +mod_long_int = ignore # ignore/add/remove/force/not_defined + +# Add or remove the 'int' keyword in 'int signed'. +mod_int_signed = ignore # ignore/add/remove/force/not_defined + +# Add or remove the 'int' keyword in 'signed int'. +mod_signed_int = ignore # ignore/add/remove/force/not_defined + +# Add or remove the 'int' keyword in 'int unsigned'. +mod_int_unsigned = ignore # ignore/add/remove/force/not_defined + +# Add or remove the 'int' keyword in 'unsigned int'. +mod_unsigned_int = ignore # ignore/add/remove/force/not_defined + +# If there is a situation where mod_int_* and mod_*_int would result in +# multiple int keywords, whether to keep the rightmost int (the default) or the +# leftmost int. +mod_int_prefer_int_on_left = false # true/false + # (OC) Whether to organize the properties. If true, properties will be # rearranged according to the mod_sort_oc_property_*_weight factors. mod_sort_oc_properties = false # true/false @@ -3230,6 +3296,16 @@ mod_sort_oc_property_nullability_weight = 0 # number # Preprocessor options # +# How to use tabs when indenting preprocessor code. +# +# -1: Use 'indent_with_tabs' setting (default) +# 0: Spaces only +# 1: Indent with tabs to brace level, align with spaces +# 2: Indent and align with tabs, using spaces when not on a tabstop +# +# Default: -1 +pp_indent_with_tabs = -1 # number + # Add or remove indentation of preprocessor directives inside #if blocks # at brace level 0 (file-level). pp_indent = remove # ignore/add/remove/force/not_defined @@ -3250,11 +3326,11 @@ pp_indent_at_level0 = false # true/false # Default: 1 pp_indent_count = 1 # unsigned number -# Add or remove space after # based on pp_level of #if blocks. -pp_space = force # ignore/add/remove/force/not_defined +# Add or remove space after # based on pp level of #if blocks. +pp_space_after = force # ignore/add/remove/force/not_defined -# Sets the number of spaces per level added with pp_space. -pp_space_count = 0 # unsigned number +# Sets the number of spaces per level added with pp_space_after. +pp_space_count = 1 # unsigned number # The indent for '#region' and '#endregion' in C# and '#pragma region' in # C/C++. Negative values decrease indent down to the first column. @@ -3286,22 +3362,34 @@ pp_include_at_level = false # true/false # Whether to ignore the '#define' body while formatting. pp_ignore_define_body = false # true/false +# An offset value that controls the indentation of the body of a multiline #define. +# 'body' refers to all the lines of a multiline #define except the first line. +# Requires 'pp_ignore_define_body = false'. +# +# <0: Absolute column: the body indentation starts off at the specified column +# (ex. -3 ==> the body is indented starting from column 3) +# >=0: Relative to the column of the '#' of '#define' +# (ex. 3 ==> the body is indented starting 3 columns at the right of '#') +# +# Default: 8 +pp_multiline_define_body_indent = 2 # number + # Whether to indent case statements between #if, #else, and #endif. -# Only applies to the indent of the preprocesser that the case statements +# Only applies to the indent of the preprocessor that the case statements # directly inside of. # # Default: true pp_indent_case = true # true/false # Whether to indent whole function definitions between #if, #else, and #endif. -# Only applies to the indent of the preprocesser that the function definition +# Only applies to the indent of the preprocessor that the function definition # is directly inside of. # # Default: true pp_indent_func_def = true # true/false # Whether to indent extern C blocks between #if, #else, and #endif. -# Only applies to the indent of the preprocesser that the extern block is +# Only applies to the indent of the preprocessor that the extern block is # directly inside of. # # Default: true @@ -3309,7 +3397,7 @@ pp_indent_extern = true # true/false # How to indent braces directly inside #if, #else, and #endif. # Requires pp_if_indent_code=true and only applies to the indent of the -# preprocesser that the braces are directly inside of. +# preprocessor that the braces are directly inside of. # 0: No extra indent # 1: Indent by one level # -1: Preserve original indentation @@ -3382,10 +3470,10 @@ use_indent_continue_only_once = false # true/false # The indentation can be: # - after the assignment, at the '[' character -# - at the begin of the lambda body +# - at the beginning of the lambda body # -# true: indentation will be after the assignment -# false: indentation will be at the begin of the lambda body (default) +# true: indentation will be at the beginning of the lambda body +# false: indentation will be after the assignment (default) indent_cpp_lambda_only_once = false # true/false # Whether sp_after_angle takes precedence over sp_inside_fparen. This was the @@ -3437,6 +3525,18 @@ debug_timeout = 0 # number # 0: do not truncate. debug_truncate = 0 # unsigned number +# sort (or not) the tracking info. +# +# Default: true +debug_sort_the_tracks = true # true/false + +# decode (or not) the flags as a new line. +# only if the -p option is set. +debug_decode_the_flags = false # true/false + +# insert the number of the line at the beginning of each line +set_numbering_for_html_output = false # true/false + # Meaning of the settings: # Ignore - do not do any changes # Add - makes sure there is 1 or more space/brace/newline/etc @@ -3489,32 +3589,31 @@ debug_truncate = 0 # unsigned number # `macro-close END_MESSAGE_MAP` # # -set QUESTION FUNC_API_CHECK_TEXTLOCK -set QUESTION FUNC_API_DEPRECATED_SINCE -set QUESTION FUNC_API_FAST -set QUESTION FUNC_API_LUA_ONLY -set QUESTION FUNC_API_NOEXPORT -set QUESTION FUNC_API_REMOTE_ONLY -set QUESTION FUNC_API_SINCE -set QUESTION FUNC_ATTR_ALWAYS_INLINE -set QUESTION FUNC_ATTR_CONST -set QUESTION FUNC_ATTR_MALLOC -set QUESTION FUNC_ATTR_NONNULL_ALL -set QUESTION FUNC_ATTR_NONNULL_ARG -set QUESTION FUNC_ATTR_NONNULL_RET -set QUESTION FUNC_ATTR_NORETURN -set QUESTION FUNC_ATTR_NO_SANITIZE_UNDEFINED -set QUESTION FUNC_ATTR_NO_SANITIZE_ADDRESS -set QUESTION FUNC_ATTR_PRINTF -set QUESTION FUNC_ATTR_PURE -set QUESTION FUNC_ATTR_UNUSED -set QUESTION FUNC_ATTR_WARN_UNUSED_RESULT +set CLASS_COLON FUNC_API_CHECK_TEXTLOCK +set CLASS_COLON FUNC_API_DEPRECATED_SINCE +set CLASS_COLON FUNC_API_FAST +set CLASS_COLON FUNC_API_LUA_ONLY +set CLASS_COLON FUNC_API_NOEXPORT +set CLASS_COLON FUNC_API_REMOTE_ONLY +set CLASS_COLON FUNC_API_SINCE +set CLASS_COLON FUNC_ATTR_ALWAYS_INLINE +set CLASS_COLON FUNC_ATTR_CONST +set CLASS_COLON FUNC_ATTR_MALLOC +set CLASS_COLON FUNC_ATTR_NONNULL_ALL +set CLASS_COLON FUNC_ATTR_NONNULL_ARG +set CLASS_COLON FUNC_ATTR_NONNULL_RET +set CLASS_COLON FUNC_ATTR_NORETURN +set CLASS_COLON FUNC_ATTR_NO_SANITIZE_ADDRESS +set CLASS_COLON FUNC_ATTR_NO_SANITIZE_UNDEFINED +set CLASS_COLON FUNC_ATTR_PRINTF +set CLASS_COLON FUNC_ATTR_PURE +set CLASS_COLON FUNC_ATTR_WARN_UNUSED_RESULT set PP_PRAGMA PRAGMA_DIAG_PUSH_IGNORE_IMPLICIT_FALLTHROUGH set PP_PRAGMA PRAGMA_DIAG_PUSH_IGNORE_MISSING_PROTOTYPES -set QUESTION REAL_FATTR_ALWAYS_INLINE -set QUESTION REAL_FATTR_CONST -set QUESTION REAL_FATTR_NONNULL_ALL -set QUESTION REAL_FATTR_PURE -set QUESTION REAL_FATTR_WARN_UNUSED_RESULT -# option(s) with 'not default' value: 112 +set CLASS_COLON REAL_FATTR_ALWAYS_INLINE +set CLASS_COLON REAL_FATTR_CONST +set CLASS_COLON REAL_FATTR_NONNULL_ALL +set CLASS_COLON REAL_FATTR_PURE +set CLASS_COLON REAL_FATTR_WARN_UNUSED_RESULT +# option(s) with 'not default' value: 117 # |