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refs.c: remove_empty_directories can take a strbuf

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The first thing we do in this function is copy the input
into a strbuf. Of the 4 callers, 3 of them already have a
strbuf we could use. Let's just take the strbuf, and convert
the remaining caller to use a strbuf, rather than a raw
git_path. This is safer, anyway, as remove_dir_recursively
is a non-trivial function that might use the pathname
buffers itself (this is _probably_ OK, as the likely culprit
would be calling resolve_gitlink_ref, but we do not pass the
proper flags to ask it to avoid blowing away gitlinks).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2015-08-10 05:37:27 -04:00 committed by Junio C Hamano
parent 5f8ef5b848
commit 470e28d4e1
1 changed files with 15 additions and 19 deletions
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34
refs.c
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@ -2290,25 +2290,14 @@ static int verify_lock(struct ref_lock *lock,
return 0;
}
static int remove_empty_directories(const char *file)
static int remove_empty_directories(struct strbuf *path)
{
/* we want to create a file but there is a directory there;
/*
* we want to create a file but there is a directory there;
* if that is an empty directory (or a directory that contains
* only empty directories), remove them.
*/
struct strbuf path;
int result, save_errno;
strbuf_init(&path, 20);
strbuf_addstr(&path, file);
result = remove_dir_recursively(&path, REMOVE_DIR_EMPTY_ONLY);
save_errno = errno;
strbuf_release(&path);
errno = save_errno;
return result;
return remove_dir_recursively(path, REMOVE_DIR_EMPTY_ONLY);
}
/*
@ -2440,7 +2429,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
* to remain.
*/
strbuf_git_path(&orig_ref_file, "%s", orig_refname);
if (remove_empty_directories(orig_ref_file.buf)) {
if (remove_empty_directories(&orig_ref_file)) {
last_errno = errno;
if (!verify_refname_available(orig_refname, extras, skip,
get_loose_refs(&ref_cache), err))
@ -2961,7 +2950,7 @@ static int rename_tmp_log(const char *newrefname)
* directory ought to result in ISDIR, but
* Solaris 5.8 gives ENOTDIR. Sheesh.
*/
if (remove_empty_directories(path.buf)) {
if (remove_empty_directories(&path)) {
error("Directory not empty: logs/%s", newrefname);
goto out;
}
@ -3046,7 +3035,14 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms
if (!read_ref_full(newrefname, RESOLVE_REF_READING, sha1, NULL) &&
delete_ref(newrefname, sha1, REF_NODEREF)) {
if (errno==EISDIR) {
if (remove_empty_directories(git_path("%s", newrefname))) {
struct strbuf path = STRBUF_INIT;
int result;
strbuf_git_path(&path, "%s", newrefname);
result = remove_empty_directories(&path);
strbuf_release(&path);
if (result) {
error("Directory not empty: %s", newrefname);
goto rollback;
}
@ -3183,7 +3179,7 @@ static int log_ref_setup(const char *refname, struct strbuf *logfile, struct str
return 0;
if (errno == EISDIR) {
if (remove_empty_directories(logfile->buf)) {
if (remove_empty_directories(logfile)) {
strbuf_addf(err, "There are still logs under "
"'%s'", logfile->buf);
return -1;