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Merge branch 'dt/pre-refs-backend' 

Code restructuring around the "refs" area to prepare for pluggable
refs backends.

* dt/pre-refs-backend: (24 commits)
  refs: on symref reflog expire, lock symref not referrent
  refs: move resolve_ref_unsafe into common code
  show_head_ref(): check the result of resolve_ref_namespace()
  check_aliased_update(): check that dst_name is non-NULL
  checkout_paths(): remove unneeded flag variable
  cmd_merge(): remove unneeded flag variable
  fsck_head_link(): remove unneeded flag variable
  read_raw_ref(): change flags parameter to unsigned int
  files-backend: inline resolve_ref_1() into resolve_ref_unsafe()
  read_raw_ref(): manage own scratch space
  files-backend: break out ref reading
  resolve_ref_1(): eliminate local variable "bad_name"
  resolve_ref_1(): reorder code
  resolve_ref_1(): eliminate local variable
  resolve_ref_unsafe(): ensure flags is always set
  resolve_ref_unsafe(): use for loop to count up to MAXDEPTH
  resolve_missing_loose_ref(): simplify semantics
  t1430: improve test coverage of deletion of badly-named refs
  t1430: test for-each-ref in the presence of badly-named refs
  t1430: don't rely on symbolic-ref for creating broken symrefs
  ...
This commit is contained in:
Junio C Hamano 2016-04-25 15:17:15 -07:00
parent 5b715ec48f 41d796ed5c
commit edc2f715bd
10 changed files with 442 additions and 290 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
builtin/checkout.c
View File

@ -242,7 +242,6 @@ static int checkout_paths(const struct checkout_opts *opts,
struct checkout state;
static char *ps_matched;
unsigned char rev[20];
int flag;
struct commit *head;
int errs = 0;
struct lock_file *lock_file;
@ -375,7 +374,7 @@ static int checkout_paths(const struct checkout_opts *opts,
if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die(_("unable to write new index file"));
read_ref_full("HEAD", 0, rev, &flag);
read_ref_full("HEAD", 0, rev, NULL);
head = lookup_commit_reference_gently(rev, 1);
errs |= post_checkout_hook(head, head, 0);

3
builtin/fsck.c
View File

@ -493,13 +493,12 @@ static void fsck_object_dir(const char *path)
static int fsck_head_link(void)
{
int flag;
int null_is_error = 0;
if (verbose)
fprintf(stderr, "Checking HEAD link\n");
head_points_at = resolve_ref_unsafe("HEAD", 0, head_oid.hash, &flag);
head_points_at = resolve_ref_unsafe("HEAD", 0, head_oid.hash, NULL);
if (!head_points_at) {
errors_found |= ERROR_REFS;
return error("Invalid HEAD");

4
builtin/merge.c
View File

@ -1168,7 +1168,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
struct commit *head_commit;
struct strbuf buf = STRBUF_INIT;
const char *head_arg;
int flag, i, ret = 0, head_subsumed;
int i, ret = 0, head_subsumed;
int best_cnt = -1, merge_was_ok = 0, automerge_was_ok = 0;
struct commit_list *common = NULL;
const char *best_strategy = NULL, *wt_strategy = NULL;
@ -1182,7 +1182,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
* Check if we are _not_ on a detached HEAD, i.e. if there is a
* current branch.
*/
branch = branch_to_free = resolve_refdup("HEAD", 0, head_sha1, &flag);
branch = branch_to_free = resolve_refdup("HEAD", 0, head_sha1, NULL);
if (branch && starts_with(branch, "refs/heads/"))
branch += 11;
if (!branch || is_null_sha1(head_sha1))

2
builtin/receive-pack.c
View File

@ -1084,13 +1084,13 @@ static void check_aliased_update(struct command *cmd, struct string_list *list)
if (!(flag & REF_ISSYMREF))
return;
dst_name = strip_namespace(dst_name);
if (!dst_name) {
rp_error("refusing update to broken symref '%s'", cmd->ref_name);
cmd->skip_update = 1;
cmd->error_string = "broken symref";
return;
}
dst_name = strip_namespace(dst_name);
if ((item = string_list_lookup(list, dst_name)) == NULL)
return;

4
http-backend.c
View File

@ -484,9 +484,9 @@ static int show_head_ref(const char *refname, const struct object_id *oid,
const char *target = resolve_ref_unsafe(refname,
RESOLVE_REF_READING,
unused.hash, NULL);
const char *target_nons = strip_namespace(target);
strbuf_addf(buf, "ref: %s\n", target_nons);
if (target)
strbuf_addf(buf, "ref: %s\n", strip_namespace(target));
} else {
strbuf_addf(buf, "%s\n", oid_to_hex(oid));
}

149
refs.c
View File

@ -1080,3 +1080,152 @@ int rename_ref_available(const char *oldname, const char *newname)
strbuf_release(&err);
return ret;
}
int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
{
struct object_id oid;
int flag;
if (submodule) {
if (resolve_gitlink_ref(submodule, "HEAD", oid.hash) == 0)
return fn("HEAD", &oid, 0, cb_data);
return 0;
}
if (!read_ref_full("HEAD", RESOLVE_REF_READING, oid.hash, &flag))
return fn("HEAD", &oid, flag, cb_data);
return 0;
}
int head_ref(each_ref_fn fn, void *cb_data)
{
return head_ref_submodule(NULL, fn, cb_data);
}
int for_each_ref(each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(NULL, "", fn, 0, 0, cb_data);
}
int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(submodule, "", fn, 0, 0, cb_data);
}
int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(NULL, prefix, fn, strlen(prefix), 0, cb_data);
}
int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken)
{
unsigned int flag = 0;
if (broken)
flag = DO_FOR_EACH_INCLUDE_BROKEN;
return do_for_each_ref(NULL, prefix, fn, 0, flag, cb_data);
}
int for_each_ref_in_submodule(const char *submodule, const char *prefix,
each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(submodule, prefix, fn, strlen(prefix), 0, cb_data);
}
int for_each_replace_ref(each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(NULL, git_replace_ref_base, fn,
strlen(git_replace_ref_base), 0, cb_data);
}
int for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
{
struct strbuf buf = STRBUF_INIT;
int ret;
strbuf_addf(&buf, "%srefs/", get_git_namespace());
ret = do_for_each_ref(NULL, buf.buf, fn, 0, 0, cb_data);
strbuf_release(&buf);
return ret;
}
int for_each_rawref(each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(NULL, "", fn, 0,
DO_FOR_EACH_INCLUDE_BROKEN, cb_data);
}
/* This function needs to return a meaningful errno on failure */
const char *resolve_ref_unsafe(const char *refname, int resolve_flags,
unsigned char *sha1, int *flags)
{
static struct strbuf sb_refname = STRBUF_INIT;
int unused_flags;
int symref_count;
if (!flags)
flags = &unused_flags;
*flags = 0;
if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) ||
!refname_is_safe(refname)) {
errno = EINVAL;
return NULL;
}
/*
* dwim_ref() uses REF_ISBROKEN to distinguish between
* missing refs and refs that were present but invalid,
* to complain about the latter to stderr.
*
* We don't know whether the ref exists, so don't set
* REF_ISBROKEN yet.
*/
*flags |= REF_BAD_NAME;
}
for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) {
unsigned int read_flags = 0;
if (read_raw_ref(refname, sha1, &sb_refname, &read_flags)) {
*flags |= read_flags;
if (errno != ENOENT || (resolve_flags & RESOLVE_REF_READING))
return NULL;
hashclr(sha1);
if (*flags & REF_BAD_NAME)
*flags |= REF_ISBROKEN;
return refname;
}
*flags |= read_flags;
if (!(read_flags & REF_ISSYMREF)) {
if (*flags & REF_BAD_NAME) {
hashclr(sha1);
*flags |= REF_ISBROKEN;
}
return refname;
}
refname = sb_refname.buf;
if (resolve_flags & RESOLVE_REF_NO_RECURSE) {
hashclr(sha1);
return refname;
}
if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) ||
!refname_is_safe(refname)) {
errno = EINVAL;
return NULL;
}
*flags |= REF_ISBROKEN | REF_BAD_NAME;
}
}
errno = ELOOP;
return NULL;
}

410
refs/files-backend.c
View File

@ -513,9 +513,6 @@ static void sort_ref_dir(struct ref_dir *dir)
dir->sorted = dir->nr = i;
}
/* Include broken references in a do_for_each_ref*() iteration: */
#define DO_FOR_EACH_INCLUDE_BROKEN 0x01
/*
* Return true iff the reference described by entry can be resolved to
* an object in the database. Emit a warning if the referred-to
@ -1272,8 +1269,6 @@ static struct ref_dir *get_loose_refs(struct ref_cache *refs)
return get_ref_dir(refs->loose);
}
/* We allow "recursive" symbolic refs. Only within reason, though */
#define MAXDEPTH 5
#define MAXREFLEN (1024)
/*
@ -1303,7 +1298,7 @@ static int resolve_gitlink_ref_recursive(struct ref_cache *refs,
char buffer[128], *p;
char *path;
if (recursion > MAXDEPTH || strlen(refname) > MAXREFLEN)
if (recursion > SYMREF_MAXDEPTH || strlen(refname) > MAXREFLEN)
return -1;
path = *refs->name
? git_pathdup_submodule(refs->name, "%s", refname)
@ -1371,13 +1366,11 @@ static struct ref_entry *get_packed_ref(const char *refname)
}
/*
* A loose ref file doesn't exist; check for a packed ref. The
* options are forwarded from resolve_safe_unsafe().
* A loose ref file doesn't exist; check for a packed ref.
*/
static int resolve_missing_loose_ref(const char *refname,
int resolve_flags,
unsigned char *sha1,
int *flags)
unsigned int *flags)
{
struct ref_entry *entry;
@ -1388,205 +1381,158 @@ static int resolve_missing_loose_ref(const char *refname,
entry = get_packed_ref(refname);
if (entry) {
hashcpy(sha1, entry->u.value.oid.hash);
if (flags)
*flags |= REF_ISPACKED;
return 0;
}
/* The reference is not a packed reference, either. */
if (resolve_flags & RESOLVE_REF_READING) {
errno = ENOENT;
return -1;
} else {
hashclr(sha1);
*flags |= REF_ISPACKED;
return 0;
}
/* refname is not a packed reference. */
return -1;
}
/* This function needs to return a meaningful errno on failure */
static const char *resolve_ref_1(const char *refname,
int resolve_flags,
unsigned char *sha1,
int *flags,
struct strbuf *sb_refname,
struct strbuf *sb_path,
struct strbuf *sb_contents)
/*
* Read a raw ref from the filesystem or packed refs file.
*
* If the ref is a sha1, fill in sha1 and return 0.
*
* If the ref is symbolic, fill in *symref with the referrent
* (e.g. "refs/heads/master") and return 0. The caller is responsible
* for validating the referrent. Set REF_ISSYMREF in flags.
*
* If the ref doesn't exist, set errno to ENOENT and return -1.
*
* If the ref exists but is neither a symbolic ref nor a sha1, it is
* broken. Set REF_ISBROKEN in flags, set errno to EINVAL, and return
* -1.
*
* If there is another error reading the ref, set errno appropriately and
* return -1.
*
* Backend-specific flags might be set in flags as well, regardless of
* outcome.
*
* sb_path is workspace: the caller should allocate and free it.
*
* It is OK for refname to point into symref. In this case:
* - if the function succeeds with REF_ISSYMREF, symref will be
* overwritten and the memory pointed to by refname might be changed
* or even freed.
* - in all other cases, symref will be untouched, and therefore
* refname will still be valid and unchanged.
*/
int read_raw_ref(const char *refname, unsigned char *sha1,
struct strbuf *symref, unsigned int *flags)
{
int depth = MAXDEPTH;
int bad_name = 0;
struct strbuf sb_contents = STRBUF_INIT;
struct strbuf sb_path = STRBUF_INIT;
const char *path;
const char *buf;
struct stat st;
int fd;
int ret = -1;
int save_errno;
if (flags)
*flags = 0;
strbuf_reset(&sb_path);
strbuf_git_path(&sb_path, "%s", refname);
path = sb_path.buf;
if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
if (flags)
*flags |= REF_BAD_NAME;
stat_ref:
/*
* We might have to loop back here to avoid a race
* condition: first we lstat() the file, then we try
* to read it as a link or as a file. But if somebody
* changes the type of the file (file <-> directory
* <-> symlink) between the lstat() and reading, then
* we don't want to report that as an error but rather
* try again starting with the lstat().
*/
if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) ||
!refname_is_safe(refname)) {
errno = EINVAL;
return NULL;
if (lstat(path, &st) < 0) {
if (errno != ENOENT)
goto out;
if (resolve_missing_loose_ref(refname, sha1, flags)) {
errno = ENOENT;
goto out;
}
/*
* dwim_ref() uses REF_ISBROKEN to distinguish between
* missing refs and refs that were present but invalid,
* to complain about the latter to stderr.
*
* We don't know whether the ref exists, so don't set
* REF_ISBROKEN yet.
*/
bad_name = 1;
ret = 0;
goto out;
}
for (;;) {
const char *path;
struct stat st;
char *buf;
int fd;
if (--depth < 0) {
errno = ELOOP;
return NULL;
}
strbuf_reset(sb_path);
strbuf_git_path(sb_path, "%s", refname);
path = sb_path->buf;
/*
* We might have to loop back here to avoid a race
* condition: first we lstat() the file, then we try
* to read it as a link or as a file. But if somebody
* changes the type of the file (file <-> directory
* <-> symlink) between the lstat() and reading, then
* we don't want to report that as an error but rather
* try again starting with the lstat().
*/
stat_ref:
if (lstat(path, &st) < 0) {
if (errno != ENOENT)
return NULL;
if (resolve_missing_loose_ref(refname, resolve_flags,
sha1, flags))
return NULL;
if (bad_name) {
hashclr(sha1);
if (flags)
*flags |= REF_ISBROKEN;
}
return refname;
}
/* Follow "normalized" - ie "refs/.." symlinks by hand */
if (S_ISLNK(st.st_mode)) {
strbuf_reset(sb_contents);
if (strbuf_readlink(sb_contents, path, 0) < 0) {
if (errno == ENOENT || errno == EINVAL)
/* inconsistent with lstat; retry */
goto stat_ref;
else
return NULL;
}
if (starts_with(sb_contents->buf, "refs/") &&
!check_refname_format(sb_contents->buf, 0)) {
strbuf_swap(sb_refname, sb_contents);
refname = sb_refname->buf;
if (flags)
*flags |= REF_ISSYMREF;
if (resolve_flags & RESOLVE_REF_NO_RECURSE) {
hashclr(sha1);
return refname;
}
continue;
}
}
/* Is it a directory? */
if (S_ISDIR(st.st_mode)) {
errno = EISDIR;
return NULL;
}
/*
* Anything else, just open it and try to use it as
* a ref
*/
fd = open(path, O_RDONLY);
if (fd < 0) {
if (errno == ENOENT)
/* Follow "normalized" - ie "refs/.." symlinks by hand */
if (S_ISLNK(st.st_mode)) {
strbuf_reset(&sb_contents);
if (strbuf_readlink(&sb_contents, path, 0) < 0) {
if (errno == ENOENT || errno == EINVAL)
/* inconsistent with lstat; retry */
goto stat_ref;
else
return NULL;
goto out;
}
strbuf_reset(sb_contents);
if (strbuf_read(sb_contents, fd, 256) < 0) {
int save_errno = errno;
close(fd);
errno = save_errno;
return NULL;
}
close(fd);
strbuf_rtrim(sb_contents);
/*
* Is it a symbolic ref?
*/
if (!starts_with(sb_contents->buf, "ref:")) {
/*
* Please note that FETCH_HEAD has a second
* line containing other data.
*/
if (get_sha1_hex(sb_contents->buf, sha1) ||
(sb_contents->buf[40] != '\0' && !isspace(sb_contents->buf[40]))) {
if (flags)
*flags |= REF_ISBROKEN;
errno = EINVAL;
return NULL;
}
if (bad_name) {
hashclr(sha1);
if (flags)
*flags |= REF_ISBROKEN;
}
return refname;
}
if (flags)
if (starts_with(sb_contents.buf, "refs/") &&
!check_refname_format(sb_contents.buf, 0)) {
strbuf_swap(&sb_contents, symref);
*flags |= REF_ISSYMREF;
buf = sb_contents->buf + 4;
while (isspace(*buf))
buf++;
strbuf_reset(sb_refname);
strbuf_addstr(sb_refname, buf);
refname = sb_refname->buf;
if (resolve_flags & RESOLVE_REF_NO_RECURSE) {
hashclr(sha1);
return refname;
}
if (check_refname_format(buf, REFNAME_ALLOW_ONELEVEL)) {
if (flags)
*flags |= REF_ISBROKEN;
if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) ||
!refname_is_safe(buf)) {
errno = EINVAL;
return NULL;
}
bad_name = 1;
ret = 0;
goto out;
}
}
}
const char *resolve_ref_unsafe(const char *refname, int resolve_flags,
unsigned char *sha1, int *flags)
{
static struct strbuf sb_refname = STRBUF_INIT;
struct strbuf sb_contents = STRBUF_INIT;
struct strbuf sb_path = STRBUF_INIT;
const char *ret;
/* Is it a directory? */
if (S_ISDIR(st.st_mode)) {
errno = EISDIR;
goto out;
}
ret = resolve_ref_1(refname, resolve_flags, sha1, flags,
&sb_refname, &sb_path, &sb_contents);
/*
* Anything else, just open it and try to use it as
* a ref
*/
fd = open(path, O_RDONLY);
if (fd < 0) {
if (errno == ENOENT)
/* inconsistent with lstat; retry */
goto stat_ref;
else
goto out;
}
strbuf_reset(&sb_contents);
if (strbuf_read(&sb_contents, fd, 256) < 0) {
int save_errno = errno;
close(fd);
errno = save_errno;
goto out;
}
close(fd);
strbuf_rtrim(&sb_contents);
buf = sb_contents.buf;
if (starts_with(buf, "ref:")) {
buf += 4;
while (isspace(*buf))
buf++;
strbuf_reset(symref);
strbuf_addstr(symref, buf);
*flags |= REF_ISSYMREF;
ret = 0;
goto out;
}
/*
* Please note that FETCH_HEAD has additional
* data after the sha.
*/
if (get_sha1_hex(buf, sha1) ||
(buf[40] != '\0' && !isspace(buf[40]))) {
*flags |= REF_ISBROKEN;
errno = EINVAL;
goto out;
}
ret = 0;
out:
save_errno = errno;
strbuf_release(&sb_path);
strbuf_release(&sb_contents);
errno = save_errno;
return ret;
}
@ -1727,10 +1673,13 @@ static int do_for_each_entry(struct ref_cache *refs, const char *base,
* value, stop the iteration and return that value; otherwise, return
* 0.
*/
static int do_for_each_ref(struct ref_cache *refs, const char *base,
each_ref_fn fn, int trim, int flags, void *cb_data)
int do_for_each_ref(const char *submodule, const char *base,
each_ref_fn fn, int trim, int flags, void *cb_data)
{
struct ref_entry_cb data;
struct ref_cache *refs;
refs = get_ref_cache(submodule);
data.base = base;
data.trim = trim;
data.flags = flags;
@ -1745,86 +1694,6 @@ static int do_for_each_ref(struct ref_cache *refs, const char *base,
return do_for_each_entry(refs, base, do_one_ref, &data);
}
static int do_head_ref(const char *submodule, each_ref_fn fn, void *cb_data)
{
struct object_id oid;
int flag;
if (submodule) {
if (resolve_gitlink_ref(submodule, "HEAD", oid.hash) == 0)
return fn("HEAD", &oid, 0, cb_data);
return 0;
}
if (!read_ref_full("HEAD", RESOLVE_REF_READING, oid.hash, &flag))
return fn("HEAD", &oid, flag, cb_data);
return 0;
}
int head_ref(each_ref_fn fn, void *cb_data)
{
return do_head_ref(NULL, fn, cb_data);
}
int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
{
return do_head_ref(submodule, fn, cb_data);
}
int for_each_ref(each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(&ref_cache, "", fn, 0, 0, cb_data);
}
int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(get_ref_cache(submodule), "", fn, 0, 0, cb_data);
}
int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(&ref_cache, prefix, fn, strlen(prefix), 0, cb_data);
}
int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken)
{
unsigned int flag = 0;
if (broken)
flag = DO_FOR_EACH_INCLUDE_BROKEN;
return do_for_each_ref(&ref_cache, prefix, fn, 0, flag, cb_data);
}
int for_each_ref_in_submodule(const char *submodule, const char *prefix,
each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(get_ref_cache(submodule), prefix, fn, strlen(prefix), 0, cb_data);
}
int for_each_replace_ref(each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(&ref_cache, git_replace_ref_base, fn,
strlen(git_replace_ref_base), 0, cb_data);
}
int for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
{
struct strbuf buf = STRBUF_INIT;
int ret;
strbuf_addf(&buf, "%srefs/", get_git_namespace());
ret = do_for_each_ref(&ref_cache, buf.buf, fn, 0, 0, cb_data);
strbuf_release(&buf);
return ret;
}
int for_each_rawref(each_ref_fn fn, void *cb_data)
{
return do_for_each_ref(&ref_cache, "", fn, 0,
DO_FOR_EACH_INCLUDE_BROKEN, cb_data);
}
static void unlock_ref(struct ref_lock *lock)
{
/* Do not free lock->lk -- atexit() still looks at them */
@ -3481,7 +3350,8 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
* reference itself, plus we might need to update the
* reference if --updateref was specified:
*/
lock = lock_ref_sha1_basic(refname, sha1, NULL, NULL, 0, &type, &err);
lock = lock_ref_sha1_basic(refname, sha1, NULL, NULL, REF_NODEREF,
&type, &err);
if (!lock) {
error("cannot lock ref '%s': %s", refname, err.buf);
strbuf_release(&err);

15
refs/refs-internal.h
View File

@ -197,4 +197,19 @@ const char *find_descendant_ref(const char *dirname,
int rename_ref_available(const char *oldname, const char *newname);
/* We allow "recursive" symbolic refs. Only within reason, though */
#define SYMREF_MAXDEPTH 5
/* Include broken references in a do_for_each_ref*() iteration: */
#define DO_FOR_EACH_INCLUDE_BROKEN 0x01
/*
* The common backend for the for_each_*ref* functions
*/
int do_for_each_ref(const char *submodule, const char *base,
each_ref_fn fn, int trim, int flags, void *cb_data);
int read_raw_ref(const char *refname, unsigned char *sha1,
struct strbuf *symref, unsigned int *flags);
#endif /* REFS_REFS_INTERNAL_H */

10
t/t1410-reflog.sh
View File

@ -338,4 +338,14 @@ test_expect_failure 'reflog with non-commit entries displays all entries' '
test_line_count = 3 actual
'
test_expect_success 'reflog expire operates on symref not referrent' '
git branch -l the_symref &&
git branch -l referrent &&
git update-ref referrent HEAD &&
git symbolic-ref refs/heads/the_symref refs/heads/referrent &&
test_when_finished "rm -f .git/refs/heads/referrent.lock" &&
touch .git/refs/heads/referrent.lock &&
git reflog expire --expire=all the_symref
'
test_done

132
t/t1430-bad-ref-name.sh
View File

@ -42,7 +42,7 @@ test_expect_success 'git branch shows badly named ref as warning' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git branch >output 2>error &&
grep -e "broken\.\.\.ref" error &&
test_i18ngrep -e "ignoring ref with broken name refs/heads/broken\.\.\.ref" error &&
! grep -e "broken\.\.\.ref" output
'
@ -147,35 +147,145 @@ test_expect_success 'rev-parse skips symref pointing to broken name' '
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git branch shadow one &&
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
git symbolic-ref refs/tags/shadow refs/heads/broken...ref &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/tags/shadow &&
test_when_finished "rm -f .git/refs/tags/shadow" &&
git rev-parse --verify one >expect &&
git rev-parse --verify shadow >actual 2>err &&
test_cmp expect actual &&
test_i18ngrep "ignoring.*refs/tags/shadow" err
test_i18ngrep "ignoring dangling symref refs/tags/shadow" err
'
test_expect_success 'update-ref --no-deref -d can delete reference to broken name' '
git symbolic-ref refs/heads/badname refs/heads/broken...ref &&
test_expect_success 'for-each-ref emits warnings for broken names' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
test_path_is_file .git/refs/heads/badname &&
git update-ref --no-deref -d refs/heads/badname &&
test_path_is_missing .git/refs/heads/badname
printf "ref: refs/heads/master\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git for-each-ref >output 2>error &&
! grep -e "broken\.\.\.ref" output &&
! grep -e "badname" output &&
! grep -e "broken\.\.\.symref" output &&
test_i18ngrep "ignoring ref with broken name refs/heads/broken\.\.\.ref" error &&
test_i18ngrep "ignoring broken ref refs/heads/badname" error &&
test_i18ngrep "ignoring ref with broken name refs/heads/broken\.\.\.symref" error
'
test_expect_success 'update-ref -d can delete broken name' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git update-ref -d refs/heads/broken...ref &&
git update-ref -d refs/heads/broken...ref >output 2>error &&
test_must_be_empty output &&
test_must_be_empty error &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
! grep -e "broken\.\.\.ref" output
'
test_expect_success 'branch -d can delete broken name' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
git branch -d broken...ref >output 2>error &&
test_i18ngrep "Deleted branch broken...ref (was broken)" output &&
test_must_be_empty error &&
git branch >output 2>error &&
! grep -e "broken\.\.\.ref" error &&
! grep -e "broken\.\.\.ref" output
'
test_expect_success 'update-ref --no-deref -d can delete symref to broken name' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git update-ref --no-deref -d refs/heads/badname >output 2>error &&
test_path_is_missing .git/refs/heads/badname &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'branch -d can delete symref to broken name' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git branch -d badname >output 2>error &&
test_path_is_missing .git/refs/heads/badname &&
test_i18ngrep "Deleted branch badname (was refs/heads/broken\.\.\.ref)" output &&
test_must_be_empty error
'
test_expect_success 'update-ref --no-deref -d can delete dangling symref to broken name' '
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git update-ref --no-deref -d refs/heads/badname >output 2>error &&
test_path_is_missing .git/refs/heads/badname &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'branch -d can delete dangling symref to broken name' '
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git branch -d badname >output 2>error &&
test_path_is_missing .git/refs/heads/badname &&
test_i18ngrep "Deleted branch badname (was refs/heads/broken\.\.\.ref)" output &&
test_must_be_empty error
'
test_expect_success 'update-ref -d can delete broken name through symref' '
cp .git/refs/heads/master .git/refs/heads/broken...ref &&
test_when_finished "rm -f .git/refs/heads/broken...ref" &&
printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname &&
test_when_finished "rm -f .git/refs/heads/badname" &&
git update-ref -d refs/heads/badname >output 2>error &&
test_path_is_missing .git/refs/heads/broken...ref &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'update-ref --no-deref -d can delete symref with broken name' '
printf "ref: refs/heads/master\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git update-ref --no-deref -d refs/heads/broken...symref >output 2>error &&
test_path_is_missing .git/refs/heads/broken...symref &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'branch -d can delete symref with broken name' '
printf "ref: refs/heads/master\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git branch -d broken...symref >output 2>error &&
test_path_is_missing .git/refs/heads/broken...symref &&
test_i18ngrep "Deleted branch broken...symref (was refs/heads/master)" output &&
test_must_be_empty error
'
test_expect_success 'update-ref --no-deref -d can delete dangling symref with broken name' '
printf "ref: refs/heads/idonotexist\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git update-ref --no-deref -d refs/heads/broken...symref >output 2>error &&
test_path_is_missing .git/refs/heads/broken...symref &&
test_must_be_empty output &&
test_must_be_empty error
'
test_expect_success 'branch -d can delete dangling symref with broken name' '
printf "ref: refs/heads/idonotexist\n" >.git/refs/heads/broken...symref &&
test_when_finished "rm -f .git/refs/heads/broken...symref" &&
git branch -d broken...symref >output 2>error &&
test_path_is_missing .git/refs/heads/broken...symref &&
test_i18ngrep "Deleted branch broken...symref (was refs/heads/idonotexist)" output &&
test_must_be_empty error
'
test_expect_success 'update-ref -d cannot delete non-ref in .git dir' '
echo precious >.git/my-private-file &&
echo precious >expect &&
test_must_fail git update-ref -d my-private-file &&
test_must_fail git update-ref -d my-private-file >output 2>error &&
test_must_be_empty output &&
test_i18ngrep -e "cannot lock .*: unable to resolve reference" error &&
test_cmp expect .git/my-private-file
'