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git_path_dirload_with_stat: use git_path_diriter

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This commit is contained in:
Edward Thomson 2015-04-29 13:28:29 -04:00
parent 35c1d20750
commit ba8ef18a53
1 changed files with 51 additions and 123 deletions
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174
src/path.c
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@ -1228,7 +1228,10 @@ void git_path_diriter_free(git_path_diriter *diriter)
if (diriter == NULL)
return;
closedir(diriter->dir);
if (diriter->dir) {
closedir(diriter->dir);
diriter->dir = NULL;
}
#ifdef GIT_USE_ICONV
git_path_iconv_clear(&diriter->ic);
@ -1274,162 +1277,87 @@ int git_path_dirload(
return error;
}
static int _dirload(
const char *path,
size_t prefix_len,
size_t alloc_extra,
unsigned int flags,
git_vector *contents)
{
int error;
DIR *dir;
size_t path_len;
path_dirent_data de_data;
struct dirent *de, *de_buf = (struct dirent *)&de_data;
#ifdef GIT_USE_ICONV
git_path_iconv_t ic = GIT_PATH_ICONV_INIT;
#endif
GIT_UNUSED(flags);
assert(path && contents);
path_len = strlen(path);
if (!path_len || path_len < prefix_len) {
giterr_set(GITERR_INVALID, "Invalid directory path '%s'", path);
return -1;
}
if ((dir = opendir(path)) == NULL) {
giterr_set(GITERR_OS, "Failed to open directory '%s'", path);
return -1;
}
#ifdef GIT_USE_ICONV
if ((flags & GIT_PATH_DIR_PRECOMPOSE_UNICODE) != 0)
(void)git_path_iconv_init_precompose(&ic);
#endif
path += prefix_len;
path_len -= prefix_len;
while ((error = p_readdir_r(dir, de_buf, &de)) == 0 && de != NULL) {
char *entry_path, *de_path = de->d_name;
size_t de_len = strlen(de_path);
if (git_path_is_dot_or_dotdot(de_path))
continue;
#ifdef GIT_USE_ICONV
if ((error = git_path_iconv(&ic, &de_path, &de_len)) < 0)
break;
#endif
if ((error = entry_path_alloc(&entry_path,
path, path_len, de_path, de_len, alloc_extra)) < 0)
break;
if ((error = git_vector_insert(contents, entry_path)) < 0) {
git__free(entry_path);
break;
}
}
closedir(dir);
#ifdef GIT_USE_ICONV
git_path_iconv_clear(&ic);
#endif
if (error != 0)
giterr_set(GITERR_OS, "Failed to process directory entry in '%s'", path);
return error;
}
int git_path_dirload_with_stat(
const char *path,
const char *dirpath,
size_t prefix_len,
unsigned int flags,
const char *start_stat,
const char *end_stat,
git_vector *contents)
{
int error;
unsigned int i;
git_path_with_stat *ps;
git_buf full = GIT_BUF_INIT;
git_path_diriter diriter = {0};
const char *path;
int (*strncomp)(const char *a, const char *b, size_t sz);
size_t start_len = start_stat ? strlen(start_stat) : 0;
size_t end_len = end_stat ? strlen(end_stat) : 0, cmp_len;
if (git_buf_set(&full, path, prefix_len) < 0)
return -1;
error = _dirload(
path, prefix_len, sizeof(git_path_with_stat) + 1, flags, contents);
if (error < 0) {
git_buf_free(&full);
return error;
}
size_t end_len = end_stat ? strlen(end_stat) : 0;
git_path_with_stat *ps;
size_t path_len, cmp_len, ps_size;
int error;
strncomp = (flags & GIT_PATH_DIR_IGNORE_CASE) != 0 ?
git__strncasecmp : git__strncmp;
/* stat struct at start of git_path_with_stat, so shift path text */
git_vector_foreach(contents, i, ps) {
size_t path_len = strlen((char *)ps);
memmove(ps->path, ps, path_len + 1);
ps->path_len = path_len;
}
if ((error = git_path_diriter_init(&diriter, dirpath, flags)) < 0)
goto done;
while ((error = git_path_diriter_next(&path, &path_len, &diriter)) == 0) {
if ((error = git_path_diriter_fullpath(&path, &path_len, &diriter)) < 0)
goto done;
assert(path_len > prefix_len);
/* remove the prefix if requested */
path += prefix_len;
path_len -= prefix_len;
git_vector_foreach(contents, i, ps) {
/* skip if before start_stat or after end_stat */
cmp_len = min(start_len, ps->path_len);
if (cmp_len && strncomp(ps->path, start_stat, cmp_len) < 0)
cmp_len = min(start_len, path_len);
if (cmp_len && strncomp(path, start_stat, cmp_len) < 0)
continue;
cmp_len = min(end_len, ps->path_len);
if (cmp_len && strncomp(ps->path, end_stat, cmp_len) > 0)
cmp_len = min(end_len, path_len);
if (cmp_len && strncomp(path, end_stat, cmp_len) > 0)
continue;
git_buf_truncate(&full, prefix_len);
GITERR_CHECK_ALLOC_ADD(&ps_size, sizeof(git_path_with_stat), path_len);
GITERR_CHECK_ALLOC_ADD(&ps_size, ps_size, 2);
if ((error = git_buf_joinpath(&full, full.ptr, ps->path)) < 0 ||
(error = git_path_lstat(full.ptr, &ps->st)) < 0) {
ps = git__calloc(1, ps_size);
ps->path_len = path_len;
memcpy(ps->path, path, path_len);
if ((error = git_path_diriter_stat(&ps->st, &diriter)) < 0) {
if (error == GIT_ENOTFOUND) {
/* file was removed between readdir and lstat */
char *entry_path = git_vector_get(contents, i);
git_vector_remove(contents, i--);
git__free(entry_path);
} else {
/* Treat the file as unreadable if we get any other error */
memset(&ps->st, 0, sizeof(ps->st));
ps->st.st_mode = GIT_FILEMODE_UNREADABLE;
git__free(ps);
continue;
}
/* Treat the file as unreadable if we get any other error */
memset(&ps->st, 0, sizeof(ps->st));
ps->st.st_mode = GIT_FILEMODE_UNREADABLE;
giterr_clear();
error = 0;
continue;
}
if (S_ISDIR(ps->st.st_mode)) {
} else if (S_ISDIR(ps->st.st_mode)) {
/* Suffix directory paths with a '/' */
ps->path[ps->path_len++] = '/';
ps->path[ps->path_len] = '\0';
} else if(!S_ISREG(ps->st.st_mode) && !S_ISLNK(ps->st.st_mode)) {
/* Ignore wacky things in the filesystem */
}
else if (!S_ISREG(ps->st.st_mode) && !S_ISLNK(ps->st.st_mode)) {
char *entry_path = git_vector_get(contents, i);
git_vector_remove(contents, i--);
git__free(entry_path);
}
git_vector_insert(contents, ps);
}
if (error == GIT_ITEROVER)
error = 0;
/* sort now that directory suffix is added */
git_vector_sort(contents);
git_buf_free(&full);
done:
git_path_diriter_free(&diriter);
return error;
}