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// fs.c -- filesystem access
#include "os/os.h"
#include "memory.h"
#include "message.h"
#include "misc1.h"
#include "misc2.h"
#include "path.h"
// Many fs functions from libuv return that value on success.
static const int kLibuvSuccess = 0;
int os_chdir(const char *path) {
if (p_verbose >= 5) {
verbose_enter();
smsg((char_u *)"chdir(%s)", path);
verbose_leave();
}
return uv_chdir(path);
}
int os_dirname(char_u *buf, size_t len)
{
assert(buf && len);
int errno;
if ((errno = uv_cwd((char *)buf, &len)) != kLibuvSuccess) {
vim_strncpy(buf, (char_u *)uv_strerror(errno), len - 1);
return FAIL;
}
return OK;
}
bool os_isdir(const char_u *name)
{
int32_t mode = os_getperm(name);
if (mode < 0) {
return false;
}
if (!S_ISDIR(mode)) {
return false;
}
return true;
}
int os_stat(const char_u *name, uv_stat_t *statbuf)
{
uv_fs_t request;
int result = uv_fs_stat(uv_default_loop(), &request,
(const char *)name, NULL);
*statbuf = request.statbuf;
uv_fs_req_cleanup(&request);
if (result == kLibuvSuccess) {
return OK;
}
return FAIL;
}
int32_t os_getperm(const char_u *name)
{
uv_stat_t statbuf;
if (os_stat(name, &statbuf) == FAIL) {
return -1;
} else {
return (int32_t)statbuf.st_mode;
}
}
int os_setperm(const char_u *name, int perm)
{
uv_fs_t request;
int result = uv_fs_chmod(uv_default_loop(), &request,
(const char*)name, perm, NULL);
uv_fs_req_cleanup(&request);
if (result == kLibuvSuccess) {
return OK;
}
return FAIL;
}
bool os_file_exists(const char_u *name)
{
uv_stat_t statbuf;
if (os_stat(name, &statbuf) == OK) {
return true;
}
return false;
}
bool os_file_is_readonly(const char *name)
{
return access(name, W_OK) != 0;
}
int os_file_is_writable(const char *name)
{
if (access(name, W_OK) == 0) {
if (os_isdir((char_u *)name)) {
return 2;
}
return 1;
}
return 0;
}
int os_rename(const char_u *path, const char_u *new_path)
{
uv_fs_t request;
int result = uv_fs_rename(uv_default_loop(), &request,
(const char *)path, (const char *)new_path, NULL);
uv_fs_req_cleanup(&request);
if (result == kLibuvSuccess) {
return OK;
}
return FAIL;
}
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