static int futils__rmdir_recurs_foreach(void *opaque, git_buf *path)
{
int error = 0;
futils__rmdir_data *data = opaque;
struct stat st;
if (data->depth > FUTILS_MAX_DEPTH)
error = futils__error_cannot_rmdir(
path->ptr, "directory nesting too deep");
else if ((error = p_lstat_posixly(path->ptr, &st)) < 0) {
if (errno == ENOENT)
error = 0;
else if (errno == ENOTDIR) {
/* asked to remove a/b/c/d/e and a/b is a normal file */
if ((data->flags & GIT_RMDIR_REMOVE_BLOCKERS) != 0)
error = futils__rm_first_parent(path, data->base);
else
futils__error_cannot_rmdir(
path->ptr, "parent is not directory");
}
else
error = git_path_set_error(errno, path->ptr, "rmdir");
}
else if (S_ISDIR(st.st_mode)) {
data->depth++;
error = git_path_direach(path, 0, futils__rmdir_recurs_foreach, data);
data->depth--;
if (error < 0)
return error;
if (data->depth == 0 && (data->flags & GIT_RMDIR_SKIP_ROOT) != 0)
return error;
if ((error = p_rmdir(path->ptr)) < 0) {
if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) != 0 &&
(errno == ENOTEMPTY || errno == EEXIST || errno == EBUSY))
error = 0;
else
error = git_path_set_error(errno, path->ptr, "rmdir");
}
}
else if ((data->flags & GIT_RMDIR_REMOVE_FILES) != 0) {
if (p_unlink(path->ptr) < 0)
error = git_path_set_error(errno, path->ptr, "remove");
}
else if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) == 0)
error = futils__error_cannot_rmdir(path->ptr, "still present");
return error;
}
static int futils__rmdir_recurs_foreach(void *opaque, git_buf *path)
{
struct stat st;
futils__rmdir_data *data = opaque;
if ((data->error = p_lstat_posixly(path->ptr, &st)) < 0) {
if (errno == ENOENT)
data->error = 0;
else if (errno == ENOTDIR) {
/* asked to remove a/b/c/d/e and a/b is a normal file */
if ((data->flags & GIT_RMDIR_REMOVE_BLOCKERS) != 0)
data->error = futils__rm_first_parent(path, data->base);
else
futils__error_cannot_rmdir(
path->ptr, "parent is not directory");
}
else
futils__error_cannot_rmdir(path->ptr, "cannot access");
}
else if (S_ISDIR(st.st_mode)) {
int error = git_path_direach(path, futils__rmdir_recurs_foreach, data);
if (error < 0)
return (error == GIT_EUSER) ? data->error : error;
data->error = p_rmdir(path->ptr);
if (data->error < 0) {
if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) != 0 &&
(errno == ENOTEMPTY || errno == EEXIST || errno == EBUSY))
data->error = 0;
else
futils__error_cannot_rmdir(path->ptr, NULL);
}
}
else if ((data->flags & GIT_RMDIR_REMOVE_FILES) != 0) {
data->error = p_unlink(path->ptr);
if (data->error < 0)
futils__error_cannot_rmdir(path->ptr, "cannot be removed");
}
else if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) == 0)
data->error = futils__error_cannot_rmdir(path->ptr, "still present");
return data->error;
}
static int futils__rmdir_empty_parent(void *opaque, git_buf *path)
{
futils__rmdir_data *data = opaque;
int error;
if (git_buf_len(path) <= data->baselen)
return GIT_ITEROVER;
error = p_rmdir(git_buf_cstr(path));
if (error) {
int en = errno;
if (en == ENOENT || en == ENOTDIR) {
giterr_clear();
error = 0;
} else if (en == ENOTEMPTY || en == EEXIST || en == EBUSY) {
giterr_clear();
error = GIT_ITEROVER;
} else {
futils__error_cannot_rmdir(git_buf_cstr(path), NULL);
}
}
return error;
}
static int futils__rm_first_parent(git_buf *path, const char *ceiling)
{
int error = GIT_ENOTFOUND;
struct stat st;
while (error == GIT_ENOTFOUND) {
git_buf_rtruncate_at_char(path, '/');
if (!path->size || git__prefixcmp(path->ptr, ceiling) != 0)
error = 0;
else if (p_lstat_posixly(path->ptr, &st) == 0) {
if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))
error = p_unlink(path->ptr);
else if (!S_ISDIR(st.st_mode))
error = -1; /* fail to remove non-regular file */
} else if (errno != ENOTDIR)
error = -1;
}
if (error)
futils__error_cannot_rmdir(path->ptr, "cannot remove parent");
return error;
}
