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-rw-r--r--src/nvim/path.c135
1 files changed, 98 insertions, 37 deletions
diff --git a/src/nvim/path.c b/src/nvim/path.c
index 6bf42ed2fa..4f3f7c0661 100644
--- a/src/nvim/path.c
+++ b/src/nvim/path.c
@@ -1,3 +1,6 @@
+// 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
+
#include <assert.h>
#include <inttypes.h>
#include <stdbool.h>
@@ -329,7 +332,7 @@ int path_fnamencmp(const char *const fname1, const char *const fname2,
&& (p_fic ? (c1 != c2 && CH_FOLD(c1) != CH_FOLD(c2)) : c1 != c2)) {
break;
}
- len -= MB_PTR2LEN((const char_u *)p1);
+ len -= (size_t)MB_PTR2LEN((const char_u *)p1);
p1 += MB_PTR2LEN((const char_u *)p1);
p2 += MB_PTR2LEN((const char_u *)p2);
}
@@ -432,7 +435,7 @@ bool add_pathsep(char *p)
/// @return [allocated] Copy of absolute path to `fname` or NULL when
/// `fname` is NULL.
char *FullName_save(const char *fname, bool force)
- FUNC_ATTR_NONNULL_RET FUNC_ATTR_MALLOC
+ FUNC_ATTR_MALLOC
{
if (fname == NULL) {
return NULL;
@@ -449,10 +452,10 @@ char *FullName_save(const char *fname, bool force)
/// Saves the absolute path.
/// @param name An absolute or relative path.
/// @return The absolute path of `name`.
-char_u *save_absolute_path(const char_u *name)
- FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_RET FUNC_ATTR_NONNULL_ALL
+char_u *save_abs_path(const char_u *name)
+ FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_ALL
{
- if (!path_is_absolute_path(name)) {
+ if (!path_is_absolute(name)) {
return (char_u *)FullName_save((char *)name, true);
}
return vim_strsave((char_u *) name);
@@ -670,11 +673,12 @@ static size_t do_path_expand(garray_T *gap, const char_u *path,
// Find all matching entries.
char_u *name;
scandir_next_with_dots(NULL); // initialize
- while ((name = (char_u *) scandir_next_with_dots(&dir)) && name != NULL) {
+ while ((name = (char_u *)scandir_next_with_dots(&dir)) != NULL) {
if ((name[0] != '.'
|| starts_with_dot
|| ((flags & EW_DODOT)
- && name[1] != NUL && (name[1] != '.' || name[2] != NUL)))
+ && name[1] != NUL
+ && (name[1] != '.' || name[2] != NUL))) // -V557
&& ((regmatch.regprog != NULL && vim_regexec(&regmatch, name, 0))
|| ((flags & EW_NOTWILD)
&& fnamencmp(path + (s - buf), name, e - s) == 0))) {
@@ -811,7 +815,7 @@ static void expand_path_option(char_u *curdir, garray_T *gap)
STRCPY(buf, curdir); // relative to current directory
} else if (path_with_url((char *)buf)) {
continue; // URL can't be used here
- } else if (!path_is_absolute_path(buf)) {
+ } else if (!path_is_absolute(buf)) {
// Expand relative path to their full path equivalent
size_t len = STRLEN(curdir);
if (len + STRLEN(buf) + 3 > MAXPATHL) {
@@ -946,19 +950,17 @@ static void uniquefy_paths(garray_T *gap, char_u *pattern)
}
}
- if (path_is_absolute_path(path)) {
- /*
- * Last resort: shorten relative to curdir if possible.
- * 'possible' means:
- * 1. It is under the current directory.
- * 2. The result is actually shorter than the original.
- *
- * Before curdir After
- * /foo/bar/file.txt /foo/bar ./file.txt
- * c:\foo\bar\file.txt c:\foo\bar .\file.txt
- * /file.txt / /file.txt
- * c:\file.txt c:\ .\file.txt
- */
+ if (path_is_absolute(path)) {
+ // Last resort: shorten relative to curdir if possible.
+ // 'possible' means:
+ // 1. It is under the current directory.
+ // 2. The result is actually shorter than the original.
+ //
+ // Before curdir After
+ // /foo/bar/file.txt /foo/bar ./file.txt
+ // c:\foo\bar\file.txt c:\foo\bar .\file.txt
+ // /file.txt / /file.txt
+ // c:\file.txt c:\ .\file.txt
short_name = path_shorten_fname(path, curdir);
if (short_name != NULL && short_name > path + 1
) {
@@ -1218,7 +1220,7 @@ int gen_expand_wildcards(int num_pat, char_u **pat, int *num_file,
*/
if (path_has_exp_wildcard(p)) {
if ((flags & EW_PATH)
- && !path_is_absolute_path(p)
+ && !path_is_absolute(p)
&& !(p[0] == '.'
&& (vim_ispathsep(p[1])
|| (p[1] == '.' && vim_ispathsep(p[2]))))
@@ -1664,7 +1666,7 @@ int path_with_url(const char *fname)
*/
bool vim_isAbsName(char_u *name)
{
- return path_with_url((char *)name) != 0 || path_is_absolute_path(name);
+ return path_with_url((char *)name) != 0 || path_is_absolute(name);
}
/// Save absolute file name to "buf[len]".
@@ -1687,6 +1689,9 @@ int vim_FullName(const char *fname, char *buf, size_t len, bool force)
if (strlen(fname) > (len - 1)) {
xstrlcpy(buf, fname, len); // truncate
+#ifdef WIN32
+ slash_adjust((char_u *)buf);
+#endif
return FAIL;
}
@@ -1695,10 +1700,13 @@ int vim_FullName(const char *fname, char *buf, size_t len, bool force)
return OK;
}
- int rv = path_get_absolute_path((char_u *)fname, (char_u *)buf, len, force);
+ int rv = path_to_absolute((char_u *)fname, (char_u *)buf, len, force);
if (rv == FAIL) {
xstrlcpy(buf, fname, len); // something failed; use the filename
}
+#ifdef WIN32
+ slash_adjust((char_u *)buf);
+#endif
return rv;
}
@@ -1712,7 +1720,7 @@ int vim_FullName(const char *fname, char *buf, size_t len, bool force)
///
/// @param fname is the filename to expand
/// @return [allocated] Full path (NULL for failure).
-char *fix_fname(char *fname)
+char *fix_fname(const char *fname)
{
#ifdef UNIX
return FullName_save(fname, true);
@@ -1732,7 +1740,7 @@ char *fix_fname(char *fname)
path_fix_case((char_u *)fname); // set correct case for file name
# endif
- return fname;
+ return (char *)fname;
#endif
}
@@ -1853,7 +1861,7 @@ int pathcmp(const char *p, const char *q, int maxlen)
break;
}
- if ((p_fic ? vim_toupper(c1) != vim_toupper(c2) : c1 != c2)
+ if ((p_fic ? mb_toupper(c1) != mb_toupper(c2) : c1 != c2)
#ifdef BACKSLASH_IN_FILENAME
/* consider '/' and '\\' to be equal */
&& !((c1 == '/' && c2 == '\\')
@@ -1864,8 +1872,8 @@ int pathcmp(const char *p, const char *q, int maxlen)
return -1;
if (vim_ispathsep(c2))
return 1;
- return p_fic ? vim_toupper(c1) - vim_toupper(c2)
- : c1 - c2; /* no match */
+ return p_fic ? mb_toupper(c1) - mb_toupper(c2)
+ : c1 - c2; // no match
}
i += MB_PTR2LEN((char_u *)p + i);
@@ -1901,7 +1909,7 @@ int pathcmp(const char *p, const char *q, int maxlen)
/// - Pointer into `full_path` if shortened.
/// - `full_path` unchanged if no shorter name is possible.
/// - NULL if `full_path` is NULL.
-char_u *path_shorten_fname_if_possible(char_u *full_path)
+char_u *path_try_shorten_fname(char_u *full_path)
{
char_u *dirname = xmalloc(MAXPATHL);
char_u *p = full_path;
@@ -2182,8 +2190,8 @@ int append_path(char *path, const char *to_append, size_t max_len)
/// @param force also expand when "fname" is already absolute.
///
/// @return FAIL for failure, OK for success.
-static int path_get_absolute_path(const char_u *fname, char_u *buf,
- size_t len, int force)
+static int path_to_absolute(const char_u *fname, char_u *buf, size_t len,
+ int force)
{
char_u *p;
*buf = NUL;
@@ -2192,12 +2200,18 @@ static int path_get_absolute_path(const char_u *fname, char_u *buf,
char *end_of_path = (char *) fname;
// expand it if forced or not an absolute path
- if (force || !path_is_absolute_path(fname)) {
- if ((p = vim_strrchr(fname, '/')) != NULL) {
+ if (force || !path_is_absolute(fname)) {
+ p = vim_strrchr(fname, '/');
+#ifdef WIN32
+ if (p == NULL) {
+ p = vim_strrchr(fname, '\\');
+ }
+#endif
+ if (p != NULL) {
// relative to root
if (p == fname) {
// only one path component
- relative_directory[0] = '/';
+ relative_directory[0] = PATHSEP;
relative_directory[1] = NUL;
} else {
assert(p >= fname);
@@ -2219,10 +2233,10 @@ static int path_get_absolute_path(const char_u *fname, char_u *buf,
return append_path((char *)buf, end_of_path, len);
}
-/// Check if the given file is absolute.
+/// Check if file `fname` is a full (absolute) path.
///
/// @return `TRUE` if "fname" is absolute.
-int path_is_absolute_path(const char_u *fname)
+int path_is_absolute(const char_u *fname)
{
#ifdef WIN32
// A name like "d:/foo" and "//server/share" is absolute
@@ -2234,3 +2248,50 @@ int path_is_absolute_path(const char_u *fname)
return *fname == '/' || *fname == '~';
#endif
}
+
+/// Builds a full path from an invocation name `argv0`, based on heuristics.
+///
+/// @param[in] argv0 Name by which Nvim was invoked.
+/// @param[out] buf Guessed full path to `argv0`.
+/// @param[in] bufsize Size of `buf`.
+///
+/// @see os_exepath
+void path_guess_exepath(const char *argv0, char *buf, size_t bufsize)
+ FUNC_ATTR_NONNULL_ALL
+{
+ char *path = getenv("PATH");
+
+ if (path == NULL || path_is_absolute((char_u *)argv0)) {
+ xstrlcpy(buf, argv0, bufsize);
+ } else if (argv0[0] == '.' || strchr(argv0, PATHSEP)) {
+ // Relative to CWD.
+ if (os_dirname((char_u *)buf, MAXPATHL) != OK) {
+ buf[0] = NUL;
+ }
+ xstrlcat(buf, PATHSEPSTR, bufsize);
+ xstrlcat(buf, argv0, bufsize);
+ } else {
+ // Search $PATH for plausible location.
+ const void *iter = NULL;
+ do {
+ const char *dir;
+ size_t dir_len;
+ iter = vim_env_iter(ENV_SEPCHAR, path, iter, &dir, &dir_len);
+ if (dir == NULL || dir_len == 0) {
+ break;
+ }
+ if (dir_len + 1 > sizeof(NameBuff)) {
+ continue;
+ }
+ xstrlcpy((char *)NameBuff, dir, dir_len + 1);
+ xstrlcat((char *)NameBuff, PATHSEPSTR, sizeof(NameBuff));
+ xstrlcat((char *)NameBuff, argv0, sizeof(NameBuff));
+ if (os_can_exe(NameBuff, NULL, false)) {
+ xstrlcpy(buf, (char *)NameBuff, bufsize);
+ return;
+ }
+ } while (iter != NULL);
+ // Not found in $PATH, fall back to argv0.
+ xstrlcpy(buf, argv0, bufsize);
+ }
+}
generated by cgit (git 2.34.1) at 2025-10-31 08:43:14 +0000