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-rw-r--r--builtin/checkout.c3
-rw-r--r--builtin/fsck.c3
-rw-r--r--builtin/merge.c4
-rw-r--r--builtin/receive-pack.c2
-rw-r--r--http-backend.c4
-rw-r--r--refs.c149
-rw-r--r--refs/files-backend.c406
-rw-r--r--refs/refs-internal.h15
-rwxr-xr-xt/t1410-reflog.sh10
-rwxr-xr-xt/t1430-bad-ref-name.sh132
10 files changed, 440 insertions, 288 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c
index efcbd8f..ea2fe1c 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -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);
diff --git a/builtin/fsck.c b/builtin/fsck.c
index 55eac75..3f27456 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -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");
diff --git a/builtin/merge.c b/builtin/merge.c
index 41467e4..1ec44f0 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -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))
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 220a899..a744437 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -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;
diff --git a/http-backend.c b/http-backend.c
index 8870a26..2148814 100644
--- a/http-backend.c
+++ b/http-backend.c
@@ -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));
}
diff --git a/refs.c b/refs.c
index b0e6ece..87dc82f 100644
--- a/refs.c
+++ b/refs.c
@@ -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;
+}
diff --git a/refs/files-backend.c b/refs/files-backend.c
index ea78ce9..1f38076 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -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;
+ if (starts_with(sb_contents.buf, "refs/") &&
+ !check_refname_format(sb_contents.buf, 0)) {
+ strbuf_swap(&sb_contents, symref);
+ *flags |= REF_ISSYMREF;
+ ret = 0;
+ goto out;
}
- 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)
- *flags |= REF_ISSYMREF;
- buf = sb_contents->buf + 4;
+ /* Is it a directory? */
+ if (S_ISDIR(st.st_mode)) {
+ errno = EISDIR;
+ goto out;
+ }
+
+ /*
+ * 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(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;
- }
+
+ strbuf_reset(symref);
+ strbuf_addstr(symref, buf);
+ *flags |= REF_ISSYMREF;
+ 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;
+ /*
+ * 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;
- ret = resolve_ref_1(refname, resolve_flags, sha1, flags,
- &sb_refname, &sb_path, &sb_contents);
+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);
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index c7dded3..3a4f634 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -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 */
diff --git a/t/t1410-reflog.sh b/t/t1410-reflog.sh
index c623824..9cf91dc 100755
--- a/t/t1410-reflog.sh
+++ b/t/t1410-reflog.sh
@@ -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
diff --git a/t/t1430-bad-ref-name.sh b/t/t1430-bad-ref-name.sh
index c465abe..25ddab4 100755
--- a/t/t1430-bad-ref-name.sh
+++ b/t/t1430-bad-ref-name.sh
@@ -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
'