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-rw-r--r--branch.c6
-rw-r--r--builtin/blame.c2
-rw-r--r--builtin/branch.c22
-rw-r--r--builtin/checkout.c6
-rw-r--r--builtin/clone.c2
-rw-r--r--builtin/commit.c6
-rw-r--r--builtin/fetch.c34
-rw-r--r--builtin/fmt-merge-msg.c2
-rw-r--r--builtin/for-each-ref.c11
-rw-r--r--builtin/fsck.c2
-rw-r--r--builtin/log.c3
-rw-r--r--builtin/merge.c2
-rw-r--r--builtin/notes.c2
-rw-r--r--builtin/receive-pack.c9
-rw-r--r--builtin/remote.c20
-rw-r--r--builtin/replace.c5
-rw-r--r--builtin/show-branch.c7
-rw-r--r--builtin/symbolic-ref.c2
-rw-r--r--builtin/tag.c4
-rw-r--r--builtin/update-ref.c13
-rw-r--r--bundle.c2
-rw-r--r--cache.h44
-rw-r--r--fast-import.c8
-rw-r--r--git-compat-util.h16
-rw-r--r--http-backend.c4
-rw-r--r--lockfile.c10
-rw-r--r--lockfile.h1
-rw-r--r--notes-merge.c2
-rw-r--r--reflog-walk.c5
-rw-r--r--refs.c444
-rw-r--r--refs.h44
-rw-r--r--remote.c11
-rw-r--r--sequencer.c8
-rwxr-xr-xt/t1400-update-ref.sh62
-rwxr-xr-xt/t1413-reflog-detach.sh70
-rwxr-xr-xt/t1430-bad-ref-name.sh207
-rwxr-xr-xt/t3200-branch.sh9
-rwxr-xr-xt/t7001-mv.sh15
-rwxr-xr-xt/t9300-fast-import.sh30
-rw-r--r--transport-helper.c5
-rw-r--r--transport.c5
-rw-r--r--upload-pack.c2
-rw-r--r--walker.c5
-rw-r--r--wrapper.c28
-rw-r--r--wt-status.c2
45 files changed, 849 insertions, 350 deletions
diff --git a/branch.c b/branch.c
index 9a2228ebb..4bab55a9a 100644
--- a/branch.c
+++ b/branch.c
@@ -170,7 +170,7 @@ int validate_new_branchname(const char *name, struct strbuf *ref,
const char *head;
unsigned char sha1[20];
- head = resolve_ref_unsafe("HEAD", sha1, 0, NULL);
+ head = resolve_ref_unsafe("HEAD", 0, sha1, NULL);
if (!is_bare_repository() && head && !strcmp(head, ref->buf))
die(_("Cannot force update the current branch."));
}
@@ -285,8 +285,8 @@ void create_branch(const char *head,
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_update(transaction, ref.buf, sha1,
- null_sha1, 0, !forcing, &err) ||
- ref_transaction_commit(transaction, msg, &err))
+ null_sha1, 0, !forcing, msg, &err) ||
+ ref_transaction_commit(transaction, &err))
die("%s", err.buf);
ref_transaction_free(transaction);
strbuf_release(&err);
diff --git a/builtin/blame.c b/builtin/blame.c
index 3838be2b0..303e217ae 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -2286,7 +2286,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
commit->date = now;
parent_tail = &commit->parents;
- if (!resolve_ref_unsafe("HEAD", head_sha1, 1, NULL))
+ if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_sha1, NULL))
die("no such ref: HEAD");
parent_tail = append_parent(parent_tail, head_sha1);
diff --git a/builtin/branch.c b/builtin/branch.c
index 19a93a14d..3b79c5087 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -130,7 +130,8 @@ static int branch_merged(int kind, const char *name,
branch->merge[0] &&
branch->merge[0]->dst &&
(reference_name = reference_name_to_free =
- resolve_refdup(branch->merge[0]->dst, sha1, 1, NULL)) != NULL)
+ resolve_refdup(branch->merge[0]->dst, RESOLVE_REF_READING,
+ sha1, NULL)) != NULL)
reference_rev = lookup_commit_reference(sha1);
}
if (!reference_rev)
@@ -234,9 +235,12 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
free(name);
name = mkpathdup(fmt, bname.buf);
- target = resolve_ref_unsafe(name, sha1, 0, &flags);
- if (!target ||
- (!(flags & REF_ISSYMREF) && is_null_sha1(sha1))) {
+ target = resolve_ref_unsafe(name,
+ RESOLVE_REF_READING
+ | RESOLVE_REF_NO_RECURSE
+ | RESOLVE_REF_ALLOW_BAD_NAME,
+ sha1, &flags);
+ if (!target) {
error(remote_branch
? _("remote branch '%s' not found.")
: _("branch '%s' not found."), bname.buf);
@@ -244,7 +248,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
continue;
}
- if (!(flags & REF_ISSYMREF) &&
+ if (!(flags & (REF_ISSYMREF|REF_ISBROKEN)) &&
check_branch_commit(bname.buf, name, sha1, head_rev, kinds,
force)) {
ret = 1;
@@ -264,8 +268,8 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
? _("Deleted remote branch %s (was %s).\n")
: _("Deleted branch %s (was %s).\n"),
bname.buf,
- (flags & REF_ISSYMREF)
- ? target
+ (flags & REF_ISBROKEN) ? "broken"
+ : (flags & REF_ISSYMREF) ? target
: find_unique_abbrev(sha1, DEFAULT_ABBREV));
}
delete_branch_config(bname.buf);
@@ -298,7 +302,7 @@ static char *resolve_symref(const char *src, const char *prefix)
int flag;
const char *dst;
- dst = resolve_ref_unsafe(src, sha1, 0, &flag);
+ dst = resolve_ref_unsafe(src, 0, sha1, &flag);
if (!(dst && (flag & REF_ISSYMREF)))
return NULL;
if (prefix)
@@ -868,7 +872,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
track = git_branch_track;
- head = resolve_refdup("HEAD", head_sha1, 0, NULL);
+ head = resolve_refdup("HEAD", 0, head_sha1, NULL);
if (!head)
die(_("Failed to resolve HEAD as a valid ref."));
if (!strcmp(head, "HEAD"))
diff --git a/builtin/checkout.c b/builtin/checkout.c
index b4decd5b1..5410dacea 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -355,7 +355,7 @@ 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", rev, 0, &flag);
+ read_ref_full("HEAD", 0, rev, &flag);
head = lookup_commit_reference_gently(rev, 1);
errs |= post_checkout_hook(head, head, 0);
@@ -775,7 +775,7 @@ static int switch_branches(const struct checkout_opts *opts,
unsigned char rev[20];
int flag, writeout_error = 0;
memset(&old, 0, sizeof(old));
- old.path = path_to_free = resolve_refdup("HEAD", rev, 0, &flag);
+ old.path = path_to_free = resolve_refdup("HEAD", 0, rev, &flag);
old.commit = lookup_commit_reference_gently(rev, 1);
if (!(flag & REF_ISSYMREF))
old.path = NULL;
@@ -1072,7 +1072,7 @@ static int checkout_branch(struct checkout_opts *opts,
unsigned char rev[20];
int flag;
- if (!read_ref_full("HEAD", rev, 0, &flag) &&
+ if (!read_ref_full("HEAD", 0, rev, &flag) &&
(flag & REF_ISSYMREF) && is_null_sha1(rev))
return switch_unborn_to_new_branch(opts);
}
diff --git a/builtin/clone.c b/builtin/clone.c
index d3bf9532d..7f509d06a 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -623,7 +623,7 @@ static int checkout(void)
if (option_no_checkout)
return 0;
- head = resolve_refdup("HEAD", sha1, 1, NULL);
+ head = resolve_refdup("HEAD", RESOLVE_REF_READING, sha1, NULL);
if (!head) {
warning(_("remote HEAD refers to nonexistent ref, "
"unable to checkout.\n"));
diff --git a/builtin/commit.c b/builtin/commit.c
index 60d35d040..e108c5301 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1513,7 +1513,7 @@ static void print_summary(const char *prefix, const unsigned char *sha1,
rev.diffopt.break_opt = 0;
diff_setup_done(&rev.diffopt);
- head = resolve_ref_unsafe("HEAD", junk_sha1, 0, NULL);
+ head = resolve_ref_unsafe("HEAD", 0, junk_sha1, NULL);
if (!strcmp(head, "HEAD"))
head = _("detached HEAD");
else
@@ -1809,8 +1809,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
ref_transaction_update(transaction, "HEAD", sha1,
current_head
? current_head->object.sha1 : NULL,
- 0, !!current_head, &err) ||
- ref_transaction_commit(transaction, sb.buf, &err)) {
+ 0, !!current_head, sb.buf, &err) ||
+ ref_transaction_commit(transaction, &err)) {
rollback_index_files();
die("%s", err.buf);
}
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 159fb7e91..6ffd02388 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -404,23 +404,37 @@ static int s_update_ref(const char *action,
{
char msg[1024];
char *rla = getenv("GIT_REFLOG_ACTION");
- static struct ref_lock *lock;
+ struct ref_transaction *transaction;
+ struct strbuf err = STRBUF_INIT;
+ int ret, df_conflict = 0;
if (dry_run)
return 0;
if (!rla)
rla = default_rla.buf;
snprintf(msg, sizeof(msg), "%s: %s", rla, action);
- lock = lock_any_ref_for_update(ref->name,
- check_old ? ref->old_sha1 : NULL,
- 0, NULL);
- if (!lock)
- return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
- STORE_REF_ERROR_OTHER;
- if (write_ref_sha1(lock, ref->new_sha1, msg) < 0)
- return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
- STORE_REF_ERROR_OTHER;
+
+ transaction = ref_transaction_begin(&err);
+ if (!transaction ||
+ ref_transaction_update(transaction, ref->name, ref->new_sha1,
+ ref->old_sha1, 0, check_old, msg, &err))
+ goto fail;
+
+ ret = ref_transaction_commit(transaction, &err);
+ if (ret) {
+ df_conflict = (ret == TRANSACTION_NAME_CONFLICT);
+ goto fail;
+ }
+
+ ref_transaction_free(transaction);
+ strbuf_release(&err);
return 0;
+fail:
+ ref_transaction_free(transaction);
+ error("%s", err.buf);
+ strbuf_release(&err);
+ return df_conflict ? STORE_REF_ERROR_DF_CONFLICT
+ : STORE_REF_ERROR_OTHER;
}
#define REFCOL_WIDTH 10
diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c
index 79df05ef5..37177c6c2 100644
--- a/builtin/fmt-merge-msg.c
+++ b/builtin/fmt-merge-msg.c
@@ -602,7 +602,7 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out,
/* get current branch */
current_branch = current_branch_to_free =
- resolve_refdup("HEAD", head_sha1, 1, NULL);
+ resolve_refdup("HEAD", RESOLVE_REF_READING, head_sha1, NULL);
if (!current_branch)
die("No current branch");
if (starts_with(current_branch, "refs/heads/"))
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index 7ee86b3ae..603a90e29 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -635,7 +635,8 @@ static void populate_value(struct refinfo *ref)
if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) {
unsigned char unused1[20];
- ref->symref = resolve_refdup(ref->refname, unused1, 1, NULL);
+ ref->symref = resolve_refdup(ref->refname, RESOLVE_REF_READING,
+ unused1, NULL);
if (!ref->symref)
ref->symref = "";
}
@@ -694,7 +695,8 @@ static void populate_value(struct refinfo *ref)
const char *head;
unsigned char sha1[20];
- head = resolve_ref_unsafe("HEAD", sha1, 1, NULL);
+ head = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
+ sha1, NULL);
if (!strcmp(ref->refname, head))
v->s = "*";
else
@@ -838,6 +840,11 @@ static int grab_single_ref(const char *refname, const unsigned char *sha1, int f
struct refinfo *ref;
int cnt;
+ if (flag & REF_BAD_NAME) {
+ warning("ignoring ref with broken name %s", refname);
+ return 0;
+ }
+
if (*cb->grab_pattern) {
const char **pattern;
int namelen = strlen(refname);
diff --git a/builtin/fsck.c b/builtin/fsck.c
index e9ba576c1..a27515aea 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -556,7 +556,7 @@ static int fsck_head_link(void)
if (verbose)
fprintf(stderr, "Checking HEAD link\n");
- head_points_at = resolve_ref_unsafe("HEAD", head_sha1, 0, &flag);
+ head_points_at = resolve_ref_unsafe("HEAD", 0, head_sha1, &flag);
if (!head_points_at)
return error("Invalid HEAD");
if (!strcmp(head_points_at, "HEAD"))
diff --git a/builtin/log.c b/builtin/log.c
index 68d5d3003..734aab3a7 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1400,7 +1400,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
if (check_head) {
unsigned char sha1[20];
const char *ref, *v;
- ref = resolve_ref_unsafe("HEAD", sha1, 1, NULL);
+ ref = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
+ sha1, NULL);
if (ref && skip_prefix(ref, "refs/heads/", &v))
branch_name = xstrdup(v);
else
diff --git a/builtin/merge.c b/builtin/merge.c
index 4513fadc5..bebbe5b30 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -1101,7 +1101,7 @@ 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", head_sha1, 0, &flag);
+ branch = branch_to_free = resolve_refdup("HEAD", 0, head_sha1, &flag);
if (branch && starts_with(branch, "refs/heads/"))
branch += 11;
if (!branch || is_null_sha1(head_sha1))
diff --git a/builtin/notes.c b/builtin/notes.c
index 67d0bb14f..68b6cd8cc 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -702,7 +702,7 @@ static int merge_commit(struct notes_merge_options *o)
init_notes(t, "NOTES_MERGE_PARTIAL", combine_notes_overwrite, 0);
o->local_ref = local_ref_to_free =
- resolve_refdup("NOTES_MERGE_REF", sha1, 0, NULL);
+ resolve_refdup("NOTES_MERGE_REF", 0, sha1, NULL);
if (!o->local_ref)
die("Failed to resolve NOTES_MERGE_REF");
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 6420680bd..916315ff5 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -842,8 +842,9 @@ static const char *update(struct command *cmd, struct shallow_info *si)
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_update(transaction, namespaced_name,
- new_sha1, old_sha1, 0, 1, &err) ||
- ref_transaction_commit(transaction, "push", &err)) {
+ new_sha1, old_sha1, 0, 1, "push",
+ &err) ||
+ ref_transaction_commit(transaction, &err)) {
ref_transaction_free(transaction);
rp_error("%s", err.buf);
@@ -908,7 +909,7 @@ static void check_aliased_update(struct command *cmd, struct string_list *list)
int flag;
strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name);
- dst_name = resolve_ref_unsafe(buf.buf, sha1, 0, &flag);
+ dst_name = resolve_ref_unsafe(buf.buf, 0, sha1, &flag);
strbuf_release(&buf);
if (!(flag & REF_ISSYMREF))
@@ -1069,7 +1070,7 @@ static void execute_commands(struct command *commands,
check_aliased_updates(commands);
free(head_name_to_free);
- head_name = head_name_to_free = resolve_refdup("HEAD", sha1, 0, NULL);
+ head_name = head_name_to_free = resolve_refdup("HEAD", 0, sha1, NULL);
checked_connectivity = 1;
for (cmd = commands; cmd; cmd = cmd->next) {
diff --git a/builtin/remote.c b/builtin/remote.c
index 9a4640dbf..7f28f92a3 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -567,7 +567,8 @@ static int read_remote_branches(const char *refname,
strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
if (starts_with(refname, buf.buf)) {
item = string_list_append(rename->remote_branches, xstrdup(refname));
- symref = resolve_ref_unsafe(refname, orig_sha1, 1, &flag);
+ symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
+ orig_sha1, &flag);
if (flag & REF_ISSYMREF)
item->util = xstrdup(symref);
else
@@ -703,7 +704,7 @@ static int mv(int argc, const char **argv)
int flag = 0;
unsigned char sha1[20];
- read_ref_full(item->string, sha1, 1, &flag);
+ read_ref_full(item->string, RESOLVE_REF_READING, sha1, &flag);
if (!(flag & REF_ISSYMREF))
continue;
if (delete_ref(item->string, NULL, REF_NODEREF))
@@ -748,13 +749,16 @@ static int mv(int argc, const char **argv)
static int remove_branches(struct string_list *branches)
{
+ struct strbuf err = STRBUF_INIT;
const char **branch_names;
int i, result = 0;
branch_names = xmalloc(branches->nr * sizeof(*branch_names));
for (i = 0; i < branches->nr; i++)
branch_names[i] = branches->items[i].string;
- result |= repack_without_refs(branch_names, branches->nr, NULL);
+ if (repack_without_refs(branch_names, branches->nr, &err))
+ result |= error("%s", err.buf);
+ strbuf_release(&err);
free(branch_names);
for (i = 0; i < branches->nr; i++) {
@@ -1331,9 +1335,13 @@ static int prune_remote(const char *remote, int dry_run)
delete_refs = xmalloc(states.stale.nr * sizeof(*delete_refs));
for (i = 0; i < states.stale.nr; i++)
delete_refs[i] = states.stale.items[i].util;
- if (!dry_run)
- result |= repack_without_refs(delete_refs,
- states.stale.nr, NULL);
+ if (!dry_run) {
+ struct strbuf err = STRBUF_INIT;
+ if (repack_without_refs(delete_refs, states.stale.nr,
+ &err))
+ result |= error("%s", err.buf);
+ strbuf_release(&err);
+ }
free(delete_refs);
}
diff --git a/builtin/replace.c b/builtin/replace.c
index 8020db850..85d39b58d 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -171,8 +171,9 @@ static int replace_object_sha1(const char *object_ref,
transaction = ref_transaction_begin(&err);
if (!transaction ||
- ref_transaction_update(transaction, ref, repl, prev, 0, 1, &err) ||
- ref_transaction_commit(transaction, NULL, &err))
+ ref_transaction_update(transaction, ref, repl, prev,
+ 0, 1, NULL, &err) ||
+ ref_transaction_commit(transaction, &err))
die("%s", err.buf);
ref_transaction_free(transaction);
diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index 199b081e9..270e39c6c 100644
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -728,7 +728,9 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
if (ac == 0) {
static const char *fake_av[2];
- fake_av[0] = resolve_refdup("HEAD", sha1, 1, NULL);
+ fake_av[0] = resolve_refdup("HEAD",
+ RESOLVE_REF_READING,
+ sha1, NULL);
fake_av[1] = NULL;
av = fake_av;
ac = 1;
@@ -789,7 +791,8 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
}
}
- head_p = resolve_ref_unsafe("HEAD", head_sha1, 1, NULL);
+ head_p = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
+ head_sha1, NULL);
if (head_p) {
head_len = strlen(head_p);
memcpy(head, head_p, head_len + 1);
diff --git a/builtin/symbolic-ref.c b/builtin/symbolic-ref.c
index b6a711d31..29fb3f1c2 100644
--- a/builtin/symbolic-ref.c
+++ b/builtin/symbolic-ref.c
@@ -13,7 +13,7 @@ static int check_symref(const char *HEAD, int quiet, int shorten, int print)
{
unsigned char sha1[20];
int flag;
- const char *refname = resolve_ref_unsafe(HEAD, sha1, 0, &flag);
+ const char *refname = resolve_ref_unsafe(HEAD, 0, sha1, &flag);
if (!refname)
die("No such ref: %s", HEAD);
diff --git a/builtin/tag.c b/builtin/tag.c
index a81b9e417..e633f4efd 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -733,8 +733,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_update(transaction, ref.buf, object, prev,
- 0, 1, &err) ||
- ref_transaction_commit(transaction, NULL, &err))
+ 0, 1, NULL, &err) ||
+ ref_transaction_commit(transaction, &err))
die("%s", err.buf);
ref_transaction_free(transaction);
if (force && !is_null_sha1(prev) && hashcmp(prev, object))
diff --git a/builtin/update-ref.c b/builtin/update-ref.c
index 54a48c0cf..6c9be0512 100644
--- a/builtin/update-ref.c
+++ b/builtin/update-ref.c
@@ -14,6 +14,7 @@ static const char * const git_update_ref_usage[] = {
static char line_termination = '\n';
static int update_flags;
+static const char *msg;
/*
* Parse one whitespace- or NUL-terminated, possibly C-quoted argument
@@ -198,7 +199,7 @@ static const char *parse_cmd_update(struct ref_transaction *transaction,
die("update %s: extra input: %s", refname, next);
if (ref_transaction_update(transaction, refname, new_sha1, old_sha1,
- update_flags, have_old, &err))
+ update_flags, have_old, msg, &err))
die("%s", err.buf);
update_flags = 0;
@@ -229,7 +230,7 @@ static const char *parse_cmd_create(struct ref_transaction *transaction,
die("create %s: extra input: %s", refname, next);
if (ref_transaction_create(transaction, refname, new_sha1,
- update_flags, &err))
+ update_flags, msg, &err))
die("%s", err.buf);
update_flags = 0;
@@ -264,7 +265,7 @@ static const char *parse_cmd_delete(struct ref_transaction *transaction,
die("delete %s: extra input: %s", refname, next);
if (ref_transaction_delete(transaction, refname, old_sha1,
- update_flags, have_old, &err))
+ update_flags, have_old, msg, &err))
die("%s", err.buf);
update_flags = 0;
@@ -300,7 +301,7 @@ static const char *parse_cmd_verify(struct ref_transaction *transaction,
die("verify %s: extra input: %s", refname, next);
if (ref_transaction_update(transaction, refname, new_sha1, old_sha1,
- update_flags, have_old, &err))
+ update_flags, have_old, msg, &err))
die("%s", err.buf);
update_flags = 0;
@@ -354,7 +355,7 @@ static void update_refs_stdin(struct ref_transaction *transaction)
int cmd_update_ref(int argc, const char **argv, const char *prefix)
{
- const char *refname, *oldval, *msg = NULL;
+ const char *refname, *oldval;
unsigned char sha1[20], oldsha1[20];
int delete = 0, no_deref = 0, read_stdin = 0, end_null = 0, flags = 0;
struct option options[] = {
@@ -385,7 +386,7 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
if (end_null)
line_termination = '\0';
update_refs_stdin(transaction);
- if (ref_transaction_commit(transaction, msg, &err))
+ if (ref_transaction_commit(transaction, &err))
die("%s", err.buf);
ref_transaction_free(transaction);
strbuf_release(&err);
diff --git a/bundle.c b/bundle.c
index 9a22ab5c0..fa67057e6 100644
--- a/bundle.c
+++ b/bundle.c
@@ -310,7 +310,7 @@ int create_bundle(struct bundle_header *header, const char *path,
continue;
if (dwim_ref(e->name, strlen(e->name), sha1, &ref) != 1)
continue;
- if (read_ref_full(e->name, sha1, 1, &flag))
+ if (read_ref_full(e->name, RESOLVE_REF_READING, sha1, &flag))
flag = 0;
display_ref = (flag & REF_ISSYMREF) ? e->name : ref;
diff --git a/cache.h b/cache.h
index 5b8606581..0501f7dca 100644
--- a/cache.h
+++ b/cache.h
@@ -950,8 +950,8 @@ extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *);
extern int get_sha1_hex(const char *hex, unsigned char *sha1);
extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
-extern int read_ref_full(const char *refname, unsigned char *sha1,
- int reading, int *flags);
+extern int read_ref_full(const char *refname, int resolve_flags,
+ unsigned char *sha1, int *flags);
extern int read_ref(const char *refname, unsigned char *sha1);
/*
@@ -963,29 +963,49 @@ extern int read_ref(const char *refname, unsigned char *sha1);
* or the input ref.
*
* If the reference cannot be resolved to an object, the behavior
- * depends on the "reading" argument:
+ * depends on the RESOLVE_REF_READING flag:
*
- * - If reading is set, return NULL.
+ * - If RESOLVE_REF_READING is set, return NULL.
*
- * - If reading is not set, clear sha1 and return the name of the last
- * reference name in the chain, which will either be a non-symbolic
+ * - If RESOLVE_REF_READING is not set, clear sha1 and return the name of
+ * the last reference name in the chain, which will either be a non-symbolic
* reference or an undefined reference. If this is a prelude to
* "writing" to the ref, the return value is the name of the ref
* that will actually be created or changed.
*
- * If flag is non-NULL, set the value that it points to the
+ * If the RESOLVE_REF_NO_RECURSE flag is passed, only resolves one
+ * level of symbolic reference. The value stored in sha1 for a symbolic
+ * reference will always be null_sha1 in this case, and the return
+ * value is the reference that the symref refers to directly.
+ *
+ * If flags is non-NULL, set the value that it points to the
* combination of REF_ISPACKED (if the reference was found among the
- * packed references) and REF_ISSYMREF (if the initial reference was a
- * symbolic reference).
+ * packed references), REF_ISSYMREF (if the initial reference was a
+ * symbolic reference), REF_BAD_NAME (if the reference name is ill
+ * formed --- see RESOLVE_REF_ALLOW_BAD_NAME below), and REF_ISBROKEN
+ * (if the ref is malformed or has a bad name). See refs.h for more detail
+ * on each flag.
*
* If ref is not a properly-formatted, normalized reference, return
* NULL. If more than MAXDEPTH recursive symbolic lookups are needed,
* give up and return NULL.
*
- * errno is set to something meaningful on error.
+ * RESOLVE_REF_ALLOW_BAD_NAME allows resolving refs even when their
+ * name is invalid according to git-check-ref-format(1). If the name
+ * is bad then the value stored in sha1 will be null_sha1 and the two
+ * flags REF_ISBROKEN and REF_BAD_NAME will be set.
+ *
+ * Even with RESOLVE_REF_ALLOW_BAD_NAME, names that escape the refs/
+ * directory and do not consist of all caps and underscores cannot be
+ * resolved. The function returns NULL for such ref names.
+ * Caps and underscores refers to the special refs, such as HEAD,
+ * FETCH_HEAD and friends, that all live outside of the refs/ directory.
*/
-extern const char *resolve_ref_unsafe(const char *ref, unsigned char *sha1, int reading, int *flag);
-extern char *resolve_refdup(const char *ref, unsigned char *sha1, int reading, int *flag);
+#define RESOLVE_REF_READING 0x01
+#define RESOLVE_REF_NO_RECURSE 0x02
+#define RESOLVE_REF_ALLOW_BAD_NAME 0x04
+extern const char *resolve_ref_unsafe(const char *ref, int resolve_flags, unsigned char *sha1, int *flags);
+extern char *resolve_refdup(const char *ref, int resolve_flags, unsigned char *sha1, int *flags);
extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
diff --git a/fast-import.c b/fast-import.c
index fee7906e5..d0bd285a1 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -1716,8 +1716,8 @@ static int update_branch(struct branch *b)
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_update(transaction, b->name, b->sha1, old_sha1,
- 0, 1, &err) ||
- ref_transaction_commit(transaction, msg, &err)) {
+ 0, 1, msg, &err) ||
+ ref_transaction_commit(transaction, &err)) {
ref_transaction_free(transaction);
error("%s", err.buf);
strbuf_release(&err);
@@ -1757,12 +1757,12 @@ static void dump_tags(void)
strbuf_addf(&ref_name, "refs/tags/%s", t->name);
if (ref_transaction_update(transaction, ref_name.buf, t->sha1,
- NULL, 0, 0, &err)) {
+ NULL, 0, 0, msg, &err)) {
failure |= error("%s", err.buf);
goto cleanup;
}
}
- if (ref_transaction_commit(transaction, msg, &err))
+ if (ref_transaction_commit(transaction, &err))
failure |= error("%s", err.buf);
cleanup:
diff --git a/git-compat-util.h b/git-compat-util.h
index fb41118c0..59ecf218c 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -326,6 +326,8 @@ static inline char *git_find_last_dir_sep(const char *path)
#include "wildmatch.h"
+struct strbuf;
+
/* General helper functions */
extern void vreportf(const char *prefix, const char *err, va_list params);
extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
@@ -777,11 +779,21 @@ void git_qsort(void *base, size_t nmemb, size_t size,
/*
* Preserves errno, prints a message, but gives no warning for ENOENT.
- * Always returns the return value of unlink(2).
+ * Returns 0 on success, which includes trying to unlink an object that does
+ * not exist.
*/
int unlink_or_warn(const char *path);
+ /*
+ * Tries to unlink file. Returns 0 if unlink succeeded
+ * or the file already didn't exist. Returns -1 and
+ * appends a message to err suitable for
+ * 'error("%s", err->buf)' on error.
+ */
+int unlink_or_msg(const char *file, struct strbuf *err);
/*
- * Likewise for rmdir(2).
+ * Preserves errno, prints a message, but gives no warning for ENOENT.
+ * Returns 0 on success, which includes trying to remove a directory that does
+ * not exist.
*/
int rmdir_or_warn(const char *path);
/*
diff --git a/http-backend.c b/http-backend.c
index 404e68259..9977c5d49 100644
--- a/http-backend.c
+++ b/http-backend.c
@@ -412,7 +412,9 @@ static int show_head_ref(const char *refname, const unsigned char *sha1,
if (flag & REF_ISSYMREF) {
unsigned char unused[20];
- const char *target = resolve_ref_unsafe(refname, unused, 1, NULL);
+ const char *target = resolve_ref_unsafe(refname,
+ RESOLVE_REF_READING,
+ unused, NULL);
const char *target_nons = strip_namespace(target);
strbuf_addf(buf, "ref: %s\n", target_nons);
diff --git a/lockfile.c b/lockfile.c
index d098adebf..4f16ee78c 100644
--- a/lockfile.c
+++ b/lockfile.c
@@ -162,16 +162,6 @@ void unable_to_lock_message(const char *path, int err, struct strbuf *buf)
absolute_path(path), strerror(err));
}
-int unable_to_lock_error(const char *path, int err)
-{
- struct strbuf buf = STRBUF_INIT;
-
- unable_to_lock_message(path, err, &buf);
- error("%s", buf.buf);
- strbuf_release(&buf);
- return -1;
-}
-
NORETURN void unable_to_lock_die(const char *path, int err)
{
struct strbuf buf = STRBUF_INIT;
diff --git a/lockfile.h b/lockfile.h
index dc066d178..cd2ec95d3 100644
--- a/lockfile.h
+++ b/lockfile.h
@@ -71,7 +71,6 @@ struct lock_file {
#define LOCK_DIE_ON_ERROR 1
#define LOCK_NO_DEREF 2
-extern int unable_to_lock_error(const char *path, int err);
extern void unable_to_lock_message(const char *path, int err,
struct strbuf *buf);
extern NORETURN void unable_to_lock_die(const char *path, int err);
diff --git a/notes-merge.c b/notes-merge.c
index fd5fae255..7eb9d7a01 100644
--- a/notes-merge.c
+++ b/notes-merge.c
@@ -549,7 +549,7 @@ int notes_merge(struct notes_merge_options *o,
o->local_ref, o->remote_ref);
/* Dereference o->local_ref into local_sha1 */
- if (read_ref_full(o->local_ref, local_sha1, 0, NULL))
+ if (read_ref_full(o->local_ref, 0, local_sha1, NULL))
die("Failed to resolve local notes ref '%s'", o->local_ref);
else if (!check_refname_format(o->local_ref, 0) &&
is_null_sha1(local_sha1))
diff --git a/reflog-walk.c b/reflog-walk.c
index 0e5174b60..222de762e 100644
--- a/reflog-walk.c
+++ b/reflog-walk.c
@@ -48,7 +48,8 @@ static struct complete_reflogs *read_complete_reflog(const char *ref)
unsigned char sha1[20];
const char *name;
void *name_to_free;
- name = name_to_free = resolve_refdup(ref, sha1, 1, NULL);
+ name = name_to_free = resolve_refdup(ref, RESOLVE_REF_READING,
+ sha1, NULL);
if (name) {
for_each_reflog_ent(name, read_one_reflog, reflogs);
free(name_to_free);
@@ -174,7 +175,7 @@ int add_reflog_for_walk(struct reflog_walk_info *info,
if (*branch == '\0') {
unsigned char sha1[20];
free(branch);
- branch = resolve_refdup("HEAD", sha1, 0, NULL);
+ branch = resolve_refdup("HEAD", 0, sha1, NULL);
if (!branch)
die ("No current branch");
diff --git a/refs.c b/refs.c
index a77458f2f..0368ed461 100644
--- a/refs.c
+++ b/refs.c
@@ -70,16 +70,8 @@ static int check_refname_component(const char *refname, int flags)
out:
if (cp == refname)
return 0; /* Component has zero length. */
- if (refname[0] == '.') {
- if (!(flags & REFNAME_DOT_COMPONENT))
- return -1; /* Component starts with '.'. */
- /*
- * Even if leading dots are allowed, don't allow "."
- * as a component (".." is prevented by a rule above).
- */
- if (refname[1] == '\0')
- return -1; /* Component equals ".". */
- }
+ if (refname[0] == '.')
+ return -1; /* Component starts with '.'. */
if (cp - refname >= LOCK_SUFFIX_LEN &&
!memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN))
return -1; /* Refname ends with ".lock". */
@@ -195,8 +187,8 @@ struct ref_dir {
/*
* Bit values for ref_entry::flag. REF_ISSYMREF=0x01,
- * REF_ISPACKED=0x02, and REF_ISBROKEN=0x04 are public values; see
- * refs.h.
+ * REF_ISPACKED=0x02, REF_ISBROKEN=0x04 and REF_BAD_NAME=0x08 are
+ * public values; see refs.h.
*/
/*
@@ -204,16 +196,16 @@ struct ref_dir {
* the correct peeled value for the reference, which might be
* null_sha1 if the reference is not a tag or if it is broken.
*/
-#define REF_KNOWS_PEELED 0x08
+#define REF_KNOWS_PEELED 0x10
/* ref_entry represents a directory of references */
-#define REF_DIR 0x10
+#define REF_DIR 0x20
/*
* Entry has not yet been read from disk (used only for REF_DIR
* entries representing loose references)
*/
-#define REF_INCOMPLETE 0x20
+#define REF_INCOMPLETE 0x40
/*
* A ref_entry represents either a reference or a "subdirectory" of
@@ -282,6 +274,39 @@ static struct ref_dir *get_ref_dir(struct ref_entry *entry)
return dir;
}
+/*
+ * Check if a refname is safe.
+ * For refs that start with "refs/" we consider it safe as long they do
+ * not try to resolve to outside of refs/.
+ *
+ * For all other refs we only consider them safe iff they only contain
+ * upper case characters and '_' (like "HEAD" AND "MERGE_HEAD", and not like
+ * "config").
+ */
+static int refname_is_safe(const char *refname)
+{
+ if (starts_with(refname, "refs/")) {
+ char *buf;
+ int result;
+
+ buf = xmalloc(strlen(refname) + 1);
+ /*
+ * Does the refname try to escape refs/?
+ * For example: refs/foo/../bar is safe but refs/foo/../../bar
+ * is not.
+ */
+ result = !normalize_path_copy(buf, refname + strlen("refs/"));
+ free(buf);
+ return result;
+ }
+ while (*refname) {
+ if (!isupper(*refname) && *refname != '_')
+ return 0;
+ refname++;
+ }
+ return 1;
+}
+
static struct ref_entry *create_ref_entry(const char *refname,
const unsigned char *sha1, int flag,
int check_name)
@@ -290,8 +315,10 @@ static struct ref_entry *create_ref_entry(const char *refname,
struct ref_entry *ref;
if (check_name &&
- check_refname_format(refname, REFNAME_ALLOW_ONELEVEL|REFNAME_DOT_COMPONENT))
+ check_refname_format(refname, REFNAME_ALLOW_ONELEVEL))
die("Reference has invalid format: '%s'", refname);
+ if (!check_name && !refname_is_safe(refname))
+ die("Reference has invalid name: '%s'", refname);
len = strlen(refname) + 1;
ref = xmalloc(sizeof(struct ref_entry) + len);
hashcpy(ref->u.value.sha1, sha1);
@@ -787,13 +814,13 @@ static void prime_ref_dir(struct ref_dir *dir)
}
}
-static int entry_matches(struct ref_entry *entry, const char *refname)
+static int entry_matches(struct ref_entry *entry, const struct string_list *list)
{
- return refname && !strcmp(entry->name, refname);
+ return list && string_list_has_string(list, entry->name);
}
struct nonmatching_ref_data {
- const char *skip;
+ const struct string_list *skip;
struct ref_entry *found;
};
@@ -817,16 +844,19 @@ static void report_refname_conflict(struct ref_entry *entry,
/*
* Return true iff a reference named refname could be created without
* conflicting with the name of an existing reference in dir. If
- * oldrefname is non-NULL, ignore potential conflicts with oldrefname
- * (e.g., because oldrefname is scheduled for deletion in the same
+ * skip is non-NULL, ignore potential conflicts with refs in skip
+ * (e.g., because they are scheduled for deletion in the same
* operation).
*
* Two reference names conflict if one of them exactly matches the
* leading components of the other; e.g., "foo/bar" conflicts with
* both "foo" and with "foo/bar/baz" but not with "foo/bar" or
* "foo/barbados".
+ *
+ * skip must be sorted.
*/
-static int is_refname_available(const char *refname, const char *oldrefname,
+static int is_refname_available(const char *refname,
+ const struct string_list *skip,
struct ref_dir *dir)
{
const char *slash;
@@ -840,12 +870,12 @@ static int is_refname_available(const char *refname, const char *oldrefname,
* looking for a conflict with a leaf entry.
*
* If we find one, we still must make sure it is
- * not "oldrefname".
+ * not in "skip".
*/
pos = search_ref_dir(dir, refname, slash - refname);
if (pos >= 0) {
struct ref_entry *entry = dir->entries[pos];
- if (entry_matches(entry, oldrefname))
+ if (entry_matches(entry, skip))
return 1;
report_refname_conflict(entry, refname);
return 0;
@@ -878,13 +908,13 @@ static int is_refname_available(const char *refname, const char *oldrefname,
/*
* We found a directory named "refname". It is a
* problem iff it contains any ref that is not
- * "oldrefname".
+ * in "skip".
*/
struct ref_entry *entry = dir->entries[pos];
struct ref_dir *dir = get_ref_dir(entry);
struct nonmatching_ref_data data;
- data.skip = oldrefname;
+ data.skip = skip;
sort_ref_dir(dir);
if (!do_for_each_entry_in_dir(dir, 0, nonmatching_ref_fn, &data))
return 1;
@@ -1116,7 +1146,13 @@ static void read_packed_refs(FILE *f, struct ref_dir *dir)
refname = parse_ref_line(refline, sha1);
if (refname) {
- last = create_ref_entry(refname, sha1, REF_ISPACKED, 1);
+ int flag = REF_ISPACKED;
+
+ if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
+ hashclr(sha1);
+ flag |= REF_BAD_NAME | REF_ISBROKEN;
+ }
+ last = create_ref_entry(refname, sha1, flag, 0);
if (peeled == PEELED_FULLY ||
(peeled == PEELED_TAGS && starts_with(refname, "refs/tags/")))
last->flag |= REF_KNOWS_PEELED;
@@ -1248,12 +1284,19 @@ static void read_loose_refs(const char *dirname, struct ref_dir *dir)
hashclr(sha1);
flag |= REF_ISBROKEN;
}
- } else if (read_ref_full(refname.buf, sha1, 1, &flag)) {
+ } else if (read_ref_full(refname.buf,
+ RESOLVE_REF_READING,
+ sha1, &flag)) {
hashclr(sha1);
flag |= REF_ISBROKEN;
}
+ if (check_refname_format(refname.buf,
+ REFNAME_ALLOW_ONELEVEL)) {
+ hashclr(sha1);
+ flag |= REF_BAD_NAME | REF_ISBROKEN;
+ }
add_entry_to_dir(dir,
- create_ref_entry(refname.buf, sha1, flag, 1));
+ create_ref_entry(refname.buf, sha1, flag, 0));
}
strbuf_setlen(&refname, dirnamelen);
}
@@ -1372,10 +1415,10 @@ 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().
*/
-static const char *handle_missing_loose_ref(const char *refname,
- unsigned char *sha1,
- int reading,
- int *flag)
+static int resolve_missing_loose_ref(const char *refname,
+ int resolve_flags,
+ unsigned char *sha1,
+ int *flags)
{
struct ref_entry *entry;
@@ -1386,35 +1429,51 @@ static const char *handle_missing_loose_ref(const char *refname,
entry = get_packed_ref(refname);
if (entry) {
hashcpy(sha1, entry->u.value.sha1);
- if (flag)
- *flag |= REF_ISPACKED;
- return refname;
+ if (flags)
+ *flags |= REF_ISPACKED;
+ return 0;
}
/* The reference is not a packed reference, either. */
- if (reading) {
- return NULL;
+ if (resolve_flags & RESOLVE_REF_READING) {
+ errno = ENOENT;
+ return -1;
} else {
hashclr(sha1);
- return refname;
+ return 0;
}
}
/* This function needs to return a meaningful errno on failure */
-const char *resolve_ref_unsafe(const char *refname, unsigned char *sha1, int reading, int *flag)
+const char *resolve_ref_unsafe(const char *refname, int resolve_flags, unsigned char *sha1, int *flags)
{
int depth = MAXDEPTH;
ssize_t len;
char buffer[256];
static char refname_buffer[256];
+ int bad_name = 0;
- if (flag)
- *flag = 0;
+ if (flags)
+ *flags = 0;
if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
- errno = EINVAL;
- return NULL;
- }
+ if (flags)
+ *flags |= REF_BAD_NAME;
+ 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.
+ */
+ bad_name = 1;
+ }
for (;;) {
char path[PATH_MAX];
struct stat st;
@@ -1439,11 +1498,17 @@ const char *resolve_ref_unsafe(const char *refname, unsigned char *sha1, int rea
*/
stat_ref:
if (lstat(path, &st) < 0) {
- if (errno == ENOENT)
- return handle_missing_loose_ref(refname, sha1,
- reading, flag);
- else
+ 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 */
@@ -1461,8 +1526,12 @@ const char *resolve_ref_unsafe(const char *refname, unsigned char *sha1, int rea
!check_refname_format(buffer, 0)) {
strcpy(refname_buffer, buffer);
refname = refname_buffer;
- if (flag)
- *flag |= REF_ISSYMREF;
+ if (flags)
+ *flags |= REF_ISSYMREF;
+ if (resolve_flags & RESOLVE_REF_NO_RECURSE) {
+ hashclr(sha1);
+ return refname;
+ }
continue;
}
}
@@ -1507,31 +1576,45 @@ const char *resolve_ref_unsafe(const char *refname, unsigned char *sha1, int rea
*/
if (get_sha1_hex(buffer, sha1) ||
(buffer[40] != '\0' && !isspace(buffer[40]))) {
- if (flag)
- *flag |= REF_ISBROKEN;
+ if (flags)
+ *flags |= REF_ISBROKEN;
errno = EINVAL;
return NULL;
}
+ if (bad_name) {
+ hashclr(sha1);
+ if (flags)
+ *flags |= REF_ISBROKEN;
+ }
return refname;
}
- if (flag)
- *flag |= REF_ISSYMREF;
+ if (flags)
+ *flags |= REF_ISSYMREF;
buf = buffer + 4;
while (isspace(*buf))
buf++;
+ refname = strcpy(refname_buffer, buf);
+ if (resolve_flags & RESOLVE_REF_NO_RECURSE) {
+ hashclr(sha1);
+ return refname;
+ }
if (check_refname_format(buf, REFNAME_ALLOW_ONELEVEL)) {
- if (flag)
- *flag |= REF_ISBROKEN;
- errno = EINVAL;
- return NULL;
+ if (flags)
+ *flags |= REF_ISBROKEN;
+
+ if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) ||
+ !refname_is_safe(buf)) {
+ errno = EINVAL;
+ return NULL;
+ }
+ bad_name = 1;
}
- refname = strcpy(refname_buffer, buf);
}
}
-char *resolve_refdup(const char *ref, unsigned char *sha1, int reading, int *flag)
+char *resolve_refdup(const char *ref, int resolve_flags, unsigned char *sha1, int *flags)
{
- const char *ret = resolve_ref_unsafe(ref, sha1, reading, flag);
+ const char *ret = resolve_ref_unsafe(ref, resolve_flags, sha1, flags);
return ret ? xstrdup(ret) : NULL;
}
@@ -1542,22 +1625,22 @@ struct ref_filter {
void *cb_data;
};
-int read_ref_full(const char *refname, unsigned char *sha1, int reading, int *flags)
+int read_ref_full(const char *refname, int resolve_flags, unsigned char *sha1, int *flags)
{
- if (resolve_ref_unsafe(refname, sha1, reading, flags))
+ if (resolve_ref_unsafe(refname, resolve_flags, sha1, flags))
return 0;
return -1;
}
int read_ref(const char *refname, unsigned char *sha1)
{
- return read_ref_full(refname, sha1, 1, NULL);
+ return read_ref_full(refname, RESOLVE_REF_READING, sha1, NULL);
}
int ref_exists(const char *refname)
{
unsigned char sha1[20];
- return !!resolve_ref_unsafe(refname, sha1, 1, NULL);
+ return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, sha1, NULL);
}
static int filter_refs(const char *refname, const unsigned char *sha1, int flags,
@@ -1670,7 +1753,7 @@ int peel_ref(const char *refname, unsigned char *sha1)
return 0;
}
- if (read_ref_full(refname, base, 1, &flag))
+ if (read_ref_full(refname, RESOLVE_REF_READING, base, &flag))
return -1;
/*
@@ -1711,7 +1794,7 @@ static int warn_if_dangling_symref(const char *refname, const unsigned char *sha
if (!(flags & REF_ISSYMREF))
return 0;
- resolves_to = resolve_ref_unsafe(refname, junk, 0, NULL);
+ resolves_to = resolve_ref_unsafe(refname, 0, junk, NULL);
if (!resolves_to
|| (d->refname
? strcmp(resolves_to, d->refname)
@@ -1836,7 +1919,7 @@ static int do_head_ref(const char *submodule, each_ref_fn fn, void *cb_data)
return 0;
}
- if (!read_ref_full("HEAD", sha1, 1, &flag))
+ if (!read_ref_full("HEAD", RESOLVE_REF_READING, sha1, &flag))
return fn("HEAD", sha1, flag, cb_data);
return 0;
@@ -1916,7 +1999,7 @@ int head_ref_namespaced(each_ref_fn fn, void *cb_data)
int flag;
strbuf_addf(&buf, "%sHEAD", get_git_namespace());
- if (!read_ref_full(buf.buf, sha1, 1, &flag))
+ if (!read_ref_full(buf.buf, RESOLVE_REF_READING, sha1, &flag))
ret = fn(buf.buf, sha1, flag, cb_data);
strbuf_release(&buf);
@@ -2011,7 +2094,9 @@ int refname_match(const char *abbrev_name, const char *full_name)
static struct ref_lock *verify_lock(struct ref_lock *lock,
const unsigned char *old_sha1, int mustexist)
{
- if (read_ref_full(lock->ref_name, lock->old_sha1, mustexist, NULL)) {
+ if (read_ref_full(lock->ref_name,
+ mustexist ? RESOLVE_REF_READING : 0,
+ lock->old_sha1, NULL)) {
int save_errno = errno;
error("Can't verify ref %s", lock->ref_name);
unlock_ref(lock);
@@ -2084,7 +2169,8 @@ int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref)
this_result = refs_found ? sha1_from_ref : sha1;
mksnpath(fullref, sizeof(fullref), *p, len, str);
- r = resolve_ref_unsafe(fullref, this_result, 1, &flag);
+ r = resolve_ref_unsafe(fullref, RESOLVE_REF_READING,
+ this_result, &flag);
if (r) {
if (!refs_found++)
*ref = xstrdup(r);
@@ -2113,7 +2199,8 @@ int dwim_log(const char *str, int len, unsigned char *sha1, char **log)
const char *ref, *it;
mksnpath(path, sizeof(path), *p, len, str);
- ref = resolve_ref_unsafe(path, hash, 1, NULL);
+ ref = resolve_ref_unsafe(path, RESOLVE_REF_READING,
+ hash, NULL);
if (!ref)
continue;
if (reflog_exists(path))
@@ -2134,11 +2221,12 @@ int dwim_log(const char *str, int len, unsigned char *sha1, char **log)
}
/*
- * Locks a "refs/" ref returning the lock on success and NULL on failure.
+ * Locks a ref returning the lock on success and NULL on failure.
* On failure errno is set to something meaningful.
*/
static struct ref_lock *lock_ref_sha1_basic(const char *refname,
const unsigned char *old_sha1,
+ const struct string_list *skip,
int flags, int *type_p)
{
char *ref_file;
@@ -2147,13 +2235,23 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
int last_errno = 0;
int type, lflags;
int mustexist = (old_sha1 && !is_null_sha1(old_sha1));
+ int resolve_flags = 0;
int missing = 0;
int attempts_remaining = 3;
lock = xcalloc(1, sizeof(struct ref_lock));
lock->lock_fd = -1;
- refname = resolve_ref_unsafe(refname, lock->old_sha1, mustexist, &type);
+ if (mustexist)
+ resolve_flags |= RESOLVE_REF_READING;
+ if (flags & REF_DELETING) {
+ resolve_flags |= RESOLVE_REF_ALLOW_BAD_NAME;
+ if (flags & REF_NODEREF)
+ resolve_flags |= RESOLVE_REF_NO_RECURSE;
+ }
+
+ refname = resolve_ref_unsafe(refname, resolve_flags,
+ lock->old_sha1, &type);
if (!refname && errno == EISDIR) {
/* we are trying to lock foo but we used to
* have foo/bar which now does not exist;
@@ -2166,7 +2264,8 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
error("there are still refs under '%s'", orig_refname);
goto error_return;
}
- refname = resolve_ref_unsafe(orig_refname, lock->old_sha1, mustexist, &type);
+ refname = resolve_ref_unsafe(orig_refname, resolve_flags,
+ lock->old_sha1, &type);
}
if (type_p)
*type_p = type;
@@ -2183,7 +2282,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
* name is a proper prefix of our refname.
*/
if (missing &&
- !is_refname_available(refname, NULL, get_packed_refs(&ref_cache))) {
+ !is_refname_available(refname, skip, get_packed_refs(&ref_cache))) {
last_errno = ENOTDIR;
goto error_return;
}
@@ -2241,9 +2340,7 @@ struct ref_lock *lock_any_ref_for_update(const char *refname,
const unsigned char *old_sha1,
int flags, int *type_p)
{
- if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL))
- return NULL;
- return lock_ref_sha1_basic(refname, old_sha1, flags, type_p);
+ return lock_ref_sha1_basic(refname, old_sha1, NULL, flags, type_p);
}
/*
@@ -2445,8 +2542,8 @@ static void prune_ref(struct ref_to_prune *r)
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_delete(transaction, r->name, r->sha1,
- REF_ISPRUNING, 1, &err) ||
- ref_transaction_commit(transaction, NULL, &err)) {
+ REF_ISPRUNING, 1, NULL, &err) ||
+ ref_transaction_commit(transaction, &err)) {
ref_transaction_free(transaction);
error("%s", err.buf);
strbuf_release(&err);
@@ -2510,7 +2607,7 @@ static int curate_packed_ref_fn(struct ref_entry *entry, void *cb_data)
unsigned char sha1[20];
int flags;
- if (read_ref_full(entry->name, sha1, 0, &flags))
+ if (read_ref_full(entry->name, 0, sha1, &flags))
/* We should at least have found the packed ref. */
die("Internal error");
if ((flags & REF_ISSYMREF) || !(flags & REF_ISPACKED)) {
@@ -2549,6 +2646,8 @@ int repack_without_refs(const char **refnames, int n, struct strbuf *err)
struct string_list_item *ref_to_delete;
int i, ret, removed = 0;
+ assert(err);
+
/* Look for a packed ref */
for (i = 0; i < n; i++)
if (get_packed_ref(refnames[i]))
@@ -2559,13 +2658,8 @@ int repack_without_refs(const char **refnames, int n, struct strbuf *err)
return 0; /* no refname exists in packed refs */
if (lock_packed_refs(0)) {
- if (err) {
- unable_to_lock_message(git_path("packed-refs"), errno,
- err);
- return -1;
- }
- unable_to_lock_error(git_path("packed-refs"), errno);
- return error("cannot delete '%s' from packed refs", refnames[i]);
+ unable_to_lock_message(git_path("packed-refs"), errno, err);
+ return -1;
}
packed = get_packed_refs(&ref_cache);
@@ -2591,23 +2685,25 @@ int repack_without_refs(const char **refnames, int n, struct strbuf *err)
/* Write what remains */
ret = commit_packed_refs();
- if (ret && err)
+ if (ret)
strbuf_addf(err, "unable to overwrite old ref-pack file: %s",
strerror(errno));
return ret;
}
-static int delete_ref_loose(struct ref_lock *lock, int flag)
+static int delete_ref_loose(struct ref_lock *lock, int flag, struct strbuf *err)
{
+ assert(err);
+
if (!(flag & REF_ISPACKED) || flag & REF_ISSYMREF) {
/*
* loose. The loose file name is the same as the
* lockfile name, minus ".lock":
*/
char *loose_filename = get_locked_file_path(lock->lk);
- int err = unlink_or_warn(loose_filename);
+ int res = unlink_or_msg(loose_filename, err);
free(loose_filename);
- if (err && errno != ENOENT)
+ if (res)
return 1;
}
return 0;
@@ -2621,8 +2717,8 @@ int delete_ref(const char *refname, const unsigned char *sha1, int delopt)
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_delete(transaction, refname, sha1, delopt,
- sha1 && !is_null_sha1(sha1), &err) ||
- ref_transaction_commit(transaction, NULL, &err)) {
+ sha1 && !is_null_sha1(sha1), NULL, &err) ||
+ ref_transaction_commit(transaction, &err)) {
error("%s", err.buf);
ref_transaction_free(transaction);
strbuf_release(&err);
@@ -2687,6 +2783,21 @@ static int rename_tmp_log(const char *newrefname)
return 0;
}
+static int rename_ref_available(const char *oldname, const char *newname)
+{
+ struct string_list skip = STRING_LIST_INIT_NODUP;
+ int ret;
+
+ string_list_insert(&skip, oldname);
+ ret = is_refname_available(newname, &skip, get_packed_refs(&ref_cache))
+ && is_refname_available(newname, &skip, get_loose_refs(&ref_cache));
+ string_list_clear(&skip, 0);
+ return ret;
+}
+
+static int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1,
+ const char *logmsg);
+
int rename_ref(const char *oldrefname, const char *newrefname, const char *logmsg)
{
unsigned char sha1[20], orig_sha1[20];
@@ -2699,17 +2810,15 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms
if (log && S_ISLNK(loginfo.st_mode))
return error("reflog for %s is a symlink", oldrefname);
- symref = resolve_ref_unsafe(oldrefname, orig_sha1, 1, &flag);
+ symref = resolve_ref_unsafe(oldrefname, RESOLVE_REF_READING,
+ orig_sha1, &flag);
if (flag & REF_ISSYMREF)
return error("refname %s is a symbolic ref, renaming it is not supported",
oldrefname);
if (!symref)
return error("refname %s not found", oldrefname);
- if (!is_refname_available(newrefname, oldrefname, get_packed_refs(&ref_cache)))
- return 1;
-
- if (!is_refname_available(newrefname, oldrefname, get_loose_refs(&ref_cache)))
+ if (!rename_ref_available(oldrefname, newrefname))
return 1;
if (log && rename(git_path("logs/%s", oldrefname), git_path(TMP_RENAMED_LOG)))
@@ -2721,7 +2830,7 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms
goto rollback;
}
- if (!read_ref_full(newrefname, sha1, 1, &flag) &&
+ 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))) {
@@ -2739,7 +2848,7 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms
logmoved = log;
- lock = lock_ref_sha1_basic(newrefname, NULL, 0, NULL);
+ lock = lock_ref_sha1_basic(newrefname, NULL, NULL, 0, NULL);
if (!lock) {
error("unable to lock %s for update", newrefname);
goto rollback;
@@ -2754,7 +2863,7 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms
return 0;
rollback:
- lock = lock_ref_sha1_basic(oldrefname, NULL, 0, NULL);
+ lock = lock_ref_sha1_basic(oldrefname, NULL, NULL, 0, NULL);
if (!lock) {
error("unable to lock %s for rollback", oldrefname);
goto rollbacklog;
@@ -2934,8 +3043,11 @@ int is_branch(const char *refname)
return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/");
}
-/* This function must return a meaningful errno */
-int write_ref_sha1(struct ref_lock *lock,
+/*
+ * Write sha1 into the ref specified by the lock. Make sure that errno
+ * is sane on error.
+ */
+static int write_ref_sha1(struct ref_lock *lock,
const unsigned char *sha1, const char *logmsg)
{
static char term = '\n';
@@ -2996,7 +3108,8 @@ int write_ref_sha1(struct ref_lock *lock,
unsigned char head_sha1[20];
int head_flag;
const char *head_ref;
- head_ref = resolve_ref_unsafe("HEAD", head_sha1, 1, &head_flag);
+ head_ref = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
+ head_sha1, &head_flag);
if (head_ref && (head_flag & REF_ISSYMREF) &&
!strcmp(head_ref, lock->ref_name))
log_ref_write("HEAD", lock->old_sha1, sha1, logmsg);
@@ -3367,7 +3480,7 @@ static int do_for_each_reflog(struct strbuf *name, each_ref_fn fn, void *cb_data
retval = do_for_each_reflog(name, fn, cb_data);
} else {
unsigned char sha1[20];
- if (read_ref_full(name->buf, sha1, 0, NULL))
+ if (read_ref_full(name->buf, 0, sha1, NULL))
retval = error("bad ref for %s", name->buf);
else
retval = fn(name->buf, sha1, 0, cb_data);
@@ -3404,6 +3517,7 @@ struct ref_update {
int have_old; /* 1 if old_sha1 is valid, 0 otherwise */
struct ref_lock *lock;
int type;
+ char *msg;
const char refname[FLEX_ARRAY];
};
@@ -3436,6 +3550,8 @@ struct ref_transaction {
struct ref_transaction *ref_transaction_begin(struct strbuf *err)
{
+ assert(err);
+
return xcalloc(1, sizeof(struct ref_transaction));
}
@@ -3446,9 +3562,10 @@ void ref_transaction_free(struct ref_transaction *transaction)
if (!transaction)
return;
- for (i = 0; i < transaction->nr; i++)
+ for (i = 0; i < transaction->nr; i++) {
+ free(transaction->updates[i]->msg);
free(transaction->updates[i]);
-
+ }
free(transaction->updates);
free(transaction);
}
@@ -3469,57 +3586,80 @@ int ref_transaction_update(struct ref_transaction *transaction,
const char *refname,
const unsigned char *new_sha1,
const unsigned char *old_sha1,
- int flags, int have_old,
+ int flags, int have_old, const char *msg,
struct strbuf *err)
{
struct ref_update *update;
+ assert(err);
+
if (transaction->state != REF_TRANSACTION_OPEN)
die("BUG: update called for transaction that is not open");
if (have_old && !old_sha1)
die("BUG: have_old is true but old_sha1 is NULL");
+ if (!is_null_sha1(new_sha1) &&
+ check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
+ strbuf_addf(err, "refusing to update ref with bad name %s",
+ refname);
+ return -1;
+ }
+
update = add_update(transaction, refname);
hashcpy(update->new_sha1, new_sha1);
update->flags = flags;
update->have_old = have_old;
if (have_old)
hashcpy(update->old_sha1, old_sha1);
+ if (msg)
+ update->msg = xstrdup(msg);
return 0;
}
int ref_transaction_create(struct ref_transaction *transaction,
const char *refname,
const unsigned char *new_sha1,
- int flags,
+ int flags, const char *msg,
struct strbuf *err)
{
struct ref_update *update;
+ assert(err);
+
if (transaction->state != REF_TRANSACTION_OPEN)
die("BUG: create called for transaction that is not open");
if (!new_sha1 || is_null_sha1(new_sha1))
die("BUG: create ref with null new_sha1");
+ if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
+ strbuf_addf(err, "refusing to create ref with bad name %s",
+ refname);
+ return -1;
+ }
+
update = add_update(transaction, refname);
hashcpy(update->new_sha1, new_sha1);
hashclr(update->old_sha1);
update->flags = flags;
update->have_old = 1;
+ if (msg)
+ update->msg = xstrdup(msg);
return 0;
}
int ref_transaction_delete(struct ref_transaction *transaction,
const char *refname,
const unsigned char *old_sha1,
- int flags, int have_old,
+ int flags, int have_old, const char *msg,
struct strbuf *err)
{
struct ref_update *update;
+ assert(err);
+
if (transaction->state != REF_TRANSACTION_OPEN)
die("BUG: delete called for transaction that is not open");
@@ -3533,6 +3673,8 @@ int ref_transaction_delete(struct ref_transaction *transaction,
assert(!is_null_sha1(old_sha1));
hashcpy(update->old_sha1, old_sha1);
}
+ if (msg)
+ update->msg = xstrdup(msg);
return 0;
}
@@ -3546,8 +3688,8 @@ int update_ref(const char *action, const char *refname,
t = ref_transaction_begin(&err);
if (!t ||
ref_transaction_update(t, refname, sha1, oldval, flags,
- !!oldval, &err) ||
- ref_transaction_commit(t, action, &err)) {
+ !!oldval, action, &err) ||
+ ref_transaction_commit(t, &err)) {
const char *str = "update_ref failed for ref '%s': %s";
ref_transaction_free(t);
@@ -3580,26 +3722,29 @@ static int ref_update_reject_duplicates(struct ref_update **updates, int n,
struct strbuf *err)
{
int i;
+
+ assert(err);
+
for (i = 1; i < n; i++)
if (!strcmp(updates[i - 1]->refname, updates[i]->refname)) {
- const char *str =
- "Multiple updates for ref '%s' not allowed.";
- if (err)
- strbuf_addf(err, str, updates[i]->refname);
-
+ strbuf_addf(err,
+ "Multiple updates for ref '%s' not allowed.",
+ updates[i]->refname);
return 1;
}
return 0;
}
int ref_transaction_commit(struct ref_transaction *transaction,
- const char *msg, struct strbuf *err)
+ struct strbuf *err)
{
int ret = 0, delnum = 0, i;
const char **delnames;
int n = transaction->nr;
struct ref_update **updates = transaction->updates;
+ assert(err);
+
if (transaction->state != REF_TRANSACTION_OPEN)
die("BUG: commit called for transaction that is not open");
@@ -3613,25 +3758,31 @@ int ref_transaction_commit(struct ref_transaction *transaction,
/* Copy, sort, and reject duplicate refs */
qsort(updates, n, sizeof(*updates), ref_update_compare);
- ret = ref_update_reject_duplicates(updates, n, err);
- if (ret)
+ if (ref_update_reject_duplicates(updates, n, err)) {
+ ret = TRANSACTION_GENERIC_ERROR;
goto cleanup;
+ }
/* Acquire all locks while verifying old values */
for (i = 0; i < n; i++) {
struct ref_update *update = updates[i];
-
- update->lock = lock_any_ref_for_update(update->refname,
- (update->have_old ?
- update->old_sha1 :
- NULL),
- update->flags,
- &update->type);
+ int flags = update->flags;
+
+ if (is_null_sha1(update->new_sha1))
+ flags |= REF_DELETING;
+ update->lock = lock_ref_sha1_basic(update->refname,
+ (update->have_old ?
+ update->old_sha1 :
+ NULL),
+ NULL,
+ flags,
+ &update->type);
if (!update->lock) {
- if (err)
- strbuf_addf(err, "Cannot lock the ref '%s'.",
- update->refname);
- ret = 1;
+ ret = (errno == ENOTDIR)
+ ? TRANSACTION_NAME_CONFLICT
+ : TRANSACTION_GENERIC_ERROR;
+ strbuf_addf(err, "Cannot lock the ref '%s'.",
+ update->refname);
goto cleanup;
}
}
@@ -3641,15 +3792,15 @@ int ref_transaction_commit(struct ref_transaction *transaction,
struct ref_update *update = updates[i];
if (!is_null_sha1(update->new_sha1)) {
- ret = write_ref_sha1(update->lock, update->new_sha1,
- msg);
- update->lock = NULL; /* freed by write_ref_sha1 */
- if (ret) {
- if (err)
- strbuf_addf(err, "Cannot update the ref '%s'.",
- update->refname);
+ if (write_ref_sha1(update->lock, update->new_sha1,
+ update->msg)) {
+ update->lock = NULL; /* freed by write_ref_sha1 */
+ strbuf_addf(err, "Cannot update the ref '%s'.",
+ update->refname);
+ ret = TRANSACTION_GENERIC_ERROR;
goto cleanup;
}
+ update->lock = NULL; /* freed by write_ref_sha1 */
}
}
@@ -3658,13 +3809,20 @@ int ref_transaction_commit(struct ref_transaction *transaction,
struct ref_update *update = updates[i];
if (update->lock) {
- ret |= delete_ref_loose(update->lock, update->type);
+ if (delete_ref_loose(update->lock, update->type, err)) {
+ ret = TRANSACTION_GENERIC_ERROR;
+ goto cleanup;
+ }
+
if (!(update->flags & REF_ISPRUNING))
delnames[delnum++] = update->lock->ref_name;
}
}
- ret |= repack_without_refs(delnames, delnum, err);
+ if (repack_without_refs(delnames, delnum, err)) {
+ ret = TRANSACTION_GENERIC_ERROR;
+ goto cleanup;
+ }
for (i = 0; i < delnum; i++)
unlink_or_warn(git_path("logs/%s", delnames[i]));
clear_loose_ref_cache(&ref_cache);
diff --git a/refs.h b/refs.h
index 2328f06e7..2bc355687 100644
--- a/refs.h
+++ b/refs.h
@@ -56,12 +56,20 @@ struct ref_transaction;
/*
* Reference cannot be resolved to an object name: dangling symbolic
- * reference (directly or indirectly), corrupt reference file, or
- * symbolic reference refers to ill-formatted reference name.
+ * reference (directly or indirectly), corrupt reference file,
+ * reference exists but name is bad, or symbolic reference refers to
+ * ill-formatted reference name.
*/
#define REF_ISBROKEN 0x04
/*
+ * Reference name is not well formed.
+ *
+ * See git-check-ref-format(1) for the definition of well formed ref names.
+ */
+#define REF_BAD_NAME 0x08
+
+/*
* The signature for the callback function for the for_each_*()
* functions below. The memory pointed to by the refname and sha1
* arguments is only guaranteed to be valid for the duration of a
@@ -177,10 +185,12 @@ extern int peel_ref(const char *refname, unsigned char *sha1);
* ref_transaction_create(), etc.
* REF_NODEREF: act on the ref directly, instead of dereferencing
* symbolic references.
+ * REF_DELETING: tolerate broken refs
*
* Flags >= 0x100 are reserved for internal use.
*/
#define REF_NODEREF 0x01
+#define REF_DELETING 0x02
/*
* This function sets errno to something meaningful on failure.
*/
@@ -197,9 +207,6 @@ extern int commit_ref(struct ref_lock *lock);
/** Release any lock taken but not written. **/
extern void unlock_ref(struct ref_lock *lock);
-/** Writes sha1 into the ref specified by the lock. **/
-extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg);
-
/*
* Setup reflog before using. Set errno to something meaningful on failure.
*/
@@ -230,7 +237,6 @@ extern int for_each_reflog(each_ref_fn, void *);
#define REFNAME_ALLOW_ONELEVEL 1
#define REFNAME_REFSPEC_PATTERN 2
-#define REFNAME_DOT_COMPONENT 4
/*
* Return 0 iff refname has the correct format for a refname according
@@ -238,10 +244,7 @@ extern int for_each_reflog(each_ref_fn, void *);
* If REFNAME_ALLOW_ONELEVEL is set in flags, then accept one-level
* reference names. If REFNAME_REFSPEC_PATTERN is set in flags, then
* allow a "*" wildcard character in place of one of the name
- * components. No leading or repeated slashes are accepted. If
- * REFNAME_DOT_COMPONENT is set in flags, then allow refname
- * components to start with "." (but not a whole component equal to
- * "." or "..").
+ * components. No leading or repeated slashes are accepted.
*/
extern int check_refname_format(const char *refname, int flags);
@@ -274,8 +277,8 @@ struct ref_transaction *ref_transaction_begin(struct strbuf *err);
* The following functions add a reference check or update to a
* ref_transaction. In all of them, refname is the name of the
* reference to be affected. The functions make internal copies of
- * refname, so the caller retains ownership of the parameter. flags
- * can be REF_NODEREF; it is passed to update_ref_lock().
+ * refname and msg, so the caller retains ownership of these parameters.
+ * flags can be REF_NODEREF; it is passed to update_ref_lock().
*/
/*
@@ -292,7 +295,7 @@ int ref_transaction_update(struct ref_transaction *transaction,
const char *refname,
const unsigned char *new_sha1,
const unsigned char *old_sha1,
- int flags, int have_old,
+ int flags, int have_old, const char *msg,
struct strbuf *err);
/*
@@ -307,7 +310,7 @@ int ref_transaction_update(struct ref_transaction *transaction,
int ref_transaction_create(struct ref_transaction *transaction,
const char *refname,
const unsigned char *new_sha1,
- int flags,
+ int flags, const char *msg,
struct strbuf *err);
/*
@@ -321,16 +324,21 @@ int ref_transaction_create(struct ref_transaction *transaction,
int ref_transaction_delete(struct ref_transaction *transaction,
const char *refname,
const unsigned char *old_sha1,
- int flags, int have_old,
+ int flags, int have_old, const char *msg,
struct strbuf *err);
/*
* Commit all of the changes that have been queued in transaction, as
- * atomically as possible. Return a nonzero value if there is a
- * problem.
+ * atomically as possible.
+ *
+ * Returns 0 for success, or one of the below error codes for errors.
*/
+/* Naming conflict (for example, the ref names A and A/B conflict). */
+#define TRANSACTION_NAME_CONFLICT -1
+/* All other errors. */
+#define TRANSACTION_GENERIC_ERROR -2
int ref_transaction_commit(struct ref_transaction *transaction,
- const char *msg, struct strbuf *err);
+ struct strbuf *err);
/*
* Free an existing transaction and all associated data.
diff --git a/remote.c b/remote.c
index ce785f895..f62421702 100644
--- a/remote.c
+++ b/remote.c
@@ -508,7 +508,7 @@ static void read_config(void)
return;
default_remote_name = "origin";
current_branch = NULL;
- head_ref = resolve_ref_unsafe("HEAD", sha1, 0, &flag);
+ head_ref = resolve_ref_unsafe("HEAD", 0, sha1, &flag);
if (head_ref && (flag & REF_ISSYMREF) &&
skip_prefix(head_ref, "refs/heads/", &head_ref)) {
current_branch = make_branch(head_ref, 0);
@@ -1138,7 +1138,8 @@ static char *guess_ref(const char *name, struct ref *peer)
struct strbuf buf = STRBUF_INIT;
unsigned char sha1[20];
- const char *r = resolve_ref_unsafe(peer->name, sha1, 1, NULL);
+ const char *r = resolve_ref_unsafe(peer->name, RESOLVE_REF_READING,
+ sha1, NULL);
if (!r)
return NULL;
@@ -1199,7 +1200,9 @@ static int match_explicit(struct ref *src, struct ref *dst,
unsigned char sha1[20];
int flag;
- dst_value = resolve_ref_unsafe(matched_src->name, sha1, 1, &flag);
+ dst_value = resolve_ref_unsafe(matched_src->name,
+ RESOLVE_REF_READING,
+ sha1, &flag);
if (!dst_value ||
((flag & REF_ISSYMREF) &&
!starts_with(dst_value, "refs/heads/")))
@@ -1673,7 +1676,7 @@ static int ignore_symref_update(const char *refname)
unsigned char sha1[20];
int flag;
- if (!resolve_ref_unsafe(refname, sha1, 0, &flag))
+ if (!resolve_ref_unsafe(refname, 0, sha1, &flag))
return 0; /* non-existing refs are OK */
return (flag & REF_ISSYMREF);
}
diff --git a/sequencer.c b/sequencer.c
index 1b9a35e58..a03d4fa25 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -252,8 +252,8 @@ static int fast_forward_to(const unsigned char *to, const unsigned char *from,
if (!transaction ||
ref_transaction_update(transaction, "HEAD",
to, unborn ? null_sha1 : from,
- 0, 1, &err) ||
- ref_transaction_commit(transaction, sb.buf, &err)) {
+ 0, 1, sb.buf, &err) ||
+ ref_transaction_commit(transaction, &err)) {
ref_transaction_free(transaction);
error("%s", err.buf);
strbuf_release(&sb);
@@ -331,7 +331,7 @@ static int is_index_unchanged(void)
unsigned char head_sha1[20];
struct commit *head_commit;
- if (!resolve_ref_unsafe("HEAD", head_sha1, 1, NULL))
+ if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_sha1, NULL))
return error(_("Could not resolve HEAD commit\n"));
head_commit = lookup_commit(head_sha1);
@@ -871,7 +871,7 @@ static int rollback_single_pick(void)
if (!file_exists(git_path("CHERRY_PICK_HEAD")) &&
!file_exists(git_path("REVERT_HEAD")))
return error(_("no cherry-pick or revert in progress"));
- if (read_ref_full("HEAD", head_sha1, 0, NULL))
+ if (read_ref_full("HEAD", 0, head_sha1, NULL))
return error(_("cannot resolve HEAD"));
if (is_null_sha1(head_sha1))
return error(_("cannot abort from a branch yet to be born"));
diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh
index 0218e9636..7b4707b77 100755
--- a/t/t1400-update-ref.sh
+++ b/t/t1400-update-ref.sh
@@ -110,6 +110,32 @@ test_expect_success "delete symref without dereference when the referred ref is
cp -f .git/HEAD.orig .git/HEAD
git update-ref -d $m
+test_expect_success 'update-ref -d is not confused by self-reference' '
+ git symbolic-ref refs/heads/self refs/heads/self &&
+ test_when_finished "rm -f .git/refs/heads/self" &&
+ test_path_is_file .git/refs/heads/self &&
+ test_must_fail git update-ref -d refs/heads/self &&
+ test_path_is_file .git/refs/heads/self
+'
+
+test_expect_success 'update-ref --no-deref -d can delete self-reference' '
+ git symbolic-ref refs/heads/self refs/heads/self &&
+ test_when_finished "rm -f .git/refs/heads/self" &&
+ test_path_is_file .git/refs/heads/self &&
+ git update-ref --no-deref -d refs/heads/self &&
+ test_path_is_missing .git/refs/heads/self
+'
+
+test_expect_success 'update-ref --no-deref -d can delete reference to bad ref' '
+ >.git/refs/heads/bad &&
+ test_when_finished "rm -f .git/refs/heads/bad" &&
+ git symbolic-ref refs/heads/ref-to-bad refs/heads/bad &&
+ test_when_finished "rm -f .git/refs/heads/ref-to-bad" &&
+ test_path_is_file .git/refs/heads/ref-to-bad &&
+ git update-ref --no-deref -d refs/heads/ref-to-bad &&
+ test_path_is_missing .git/refs/heads/ref-to-bad
+'
+
test_expect_success '(not) create HEAD with old sha1' "
test_must_fail git update-ref HEAD $A $B
"
@@ -374,12 +400,6 @@ test_expect_success 'stdin fails create with no ref' '
grep "fatal: create: missing <ref>" err
'
-test_expect_success 'stdin fails create with bad ref name' '
- echo "create ~a $m" >stdin &&
- test_must_fail git update-ref --stdin <stdin 2>err &&
- grep "fatal: invalid ref format: ~a" err
-'
-
test_expect_success 'stdin fails create with no new value' '
echo "create $a" >stdin &&
test_must_fail git update-ref --stdin <stdin 2>err &&
@@ -398,12 +418,6 @@ test_expect_success 'stdin fails update with no ref' '
grep "fatal: update: missing <ref>" err
'
-test_expect_success 'stdin fails update with bad ref name' '
- echo "update ~a $m" >stdin &&
- test_must_fail git update-ref --stdin <stdin 2>err &&
- grep "fatal: invalid ref format: ~a" err
-'
-
test_expect_success 'stdin fails update with no new value' '
echo "update $a" >stdin &&
test_must_fail git update-ref --stdin <stdin 2>err &&
@@ -422,12 +436,6 @@ test_expect_success 'stdin fails delete with no ref' '
grep "fatal: delete: missing <ref>" err
'
-test_expect_success 'stdin fails delete with bad ref name' '
- echo "delete ~a $m" >stdin &&
- test_must_fail git update-ref --stdin <stdin 2>err &&
- grep "fatal: invalid ref format: ~a" err
-'
-
test_expect_success 'stdin fails delete with too many arguments' '
echo "delete $a $m $m" >stdin &&
test_must_fail git update-ref --stdin <stdin 2>err &&
@@ -700,12 +708,6 @@ test_expect_success 'stdin -z fails create with no ref' '
grep "fatal: create: missing <ref>" err
'
-test_expect_success 'stdin -z fails create with bad ref name' '
- printf $F "create ~a " "$m" >stdin &&
- test_must_fail git update-ref -z --stdin <stdin 2>err &&
- grep "fatal: invalid ref format: ~a " err
-'
-
test_expect_success 'stdin -z fails create with no new value' '
printf $F "create $a" >stdin &&
test_must_fail git update-ref -z --stdin <stdin 2>err &&
@@ -730,12 +732,6 @@ test_expect_success 'stdin -z fails update with too few args' '
grep "fatal: update $a: unexpected end of input when reading <oldvalue>" err
'
-test_expect_success 'stdin -z fails update with bad ref name' '
- printf $F "update ~a" "$m" "" >stdin &&
- test_must_fail git update-ref -z --stdin <stdin 2>err &&
- grep "fatal: invalid ref format: ~a" err
-'
-
test_expect_success 'stdin -z emits warning with empty new value' '
git update-ref $a $m &&
printf $F "update $a" "" "" >stdin &&
@@ -768,12 +764,6 @@ test_expect_success 'stdin -z fails delete with no ref' '
grep "fatal: delete: missing <ref>" err
'
-test_expect_success 'stdin -z fails delete with bad ref name' '
- printf $F "delete ~a" "$m" >stdin &&
- test_must_fail git update-ref -z --stdin <stdin 2>err &&
- grep "fatal: invalid ref format: ~a" err
-'
-
test_expect_success 'stdin -z fails delete with no old value' '
printf $F "delete $a" >stdin &&
test_must_fail git update-ref -z --stdin <stdin 2>err &&
diff --git a/t/t1413-reflog-detach.sh b/t/t1413-reflog-detach.sh
new file mode 100755
index 000000000..c730600d8
--- /dev/null
+++ b/t/t1413-reflog-detach.sh
@@ -0,0 +1,70 @@
+#!/bin/sh
+
+test_description='Test reflog interaction with detached HEAD'
+. ./test-lib.sh
+
+reset_state () {
+ git checkout master &&
+ cp saved_reflog .git/logs/HEAD
+}
+
+test_expect_success setup '
+ test_tick &&
+ git commit --allow-empty -m initial &&
+ git branch side &&
+ test_tick &&
+ git commit --allow-empty -m second &&
+ cat .git/logs/HEAD >saved_reflog
+'
+
+test_expect_success baseline '
+ reset_state &&
+ git rev-parse master master^ >expect &&
+ git log -g --format=%H >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'switch to branch' '
+ reset_state &&
+ git rev-parse side master master^ >expect &&
+ git checkout side &&
+ git log -g --format=%H >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'detach to other' '
+ reset_state &&
+ git rev-parse master side master master^ >expect &&
+ git checkout side &&
+ git checkout master^0 &&
+ git log -g --format=%H >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'detach to self' '
+ reset_state &&
+ git rev-parse master master master^ >expect &&
+ git checkout master^0 &&
+ git log -g --format=%H >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'attach to self' '
+ reset_state &&
+ git rev-parse master master master master^ >expect &&
+ git checkout master^0 &&
+ git checkout master &&
+ git log -g --format=%H >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'attach to other' '
+ reset_state &&
+ git rev-parse side master master master^ >expect &&
+ git checkout master^0 &&
+ git checkout side &&
+ git log -g --format=%H >actual &&
+ test_cmp expect actual
+'
+
+test_done
diff --git a/t/t1430-bad-ref-name.sh b/t/t1430-bad-ref-name.sh
new file mode 100755
index 000000000..468e85621
--- /dev/null
+++ b/t/t1430-bad-ref-name.sh
@@ -0,0 +1,207 @@
+#!/bin/sh
+
+test_description='Test handling of ref names that check-ref-format rejects'
+. ./test-lib.sh
+
+test_expect_success setup '
+ test_commit one &&
+ test_commit two
+'
+
+test_expect_success 'fast-import: fail on invalid branch name ".badbranchname"' '
+ test_when_finished "rm -f .git/objects/pack_* .git/objects/index_*" &&
+ cat >input <<-INPUT_END &&
+ commit .badbranchname
+ committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+ data <<COMMIT
+ corrupt
+ COMMIT
+
+ from refs/heads/master
+
+ INPUT_END
+ test_must_fail git fast-import <input
+'
+
+test_expect_success 'fast-import: fail on invalid branch name "bad[branch]name"' '
+ test_when_finished "rm -f .git/objects/pack_* .git/objects/index_*" &&
+ cat >input <<-INPUT_END &&
+ commit bad[branch]name
+ committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
+ data <<COMMIT
+ corrupt
+ COMMIT
+
+ from refs/heads/master
+
+ INPUT_END
+ test_must_fail git fast-import <input
+'
+
+test_expect_success 'git branch shows badly named ref' '
+ cp .git/refs/heads/master .git/refs/heads/broken...ref &&
+ test_when_finished "rm -f .git/refs/heads/broken...ref" &&
+ git branch >output &&
+ grep -e "broken\.\.\.ref" output
+'
+
+test_expect_success 'branch -d can delete badly named ref' '
+ cp .git/refs/heads/master .git/refs/heads/broken...ref &&
+ test_when_finished "rm -f .git/refs/heads/broken...ref" &&
+ git branch -d broken...ref &&
+ git branch >output &&
+ ! grep -e "broken\.\.\.ref" output
+'
+
+test_expect_success 'branch -D can delete badly named ref' '
+ cp .git/refs/heads/master .git/refs/heads/broken...ref &&
+ test_when_finished "rm -f .git/refs/heads/broken...ref" &&
+ git branch -D broken...ref &&
+ git branch >output &&
+ ! grep -e "broken\.\.\.ref" output
+'
+
+test_expect_success 'branch -D cannot delete non-ref in .git dir' '
+ echo precious >.git/my-private-file &&
+ echo precious >expect &&
+ test_must_fail git branch -D ../../my-private-file &&
+ test_cmp expect .git/my-private-file
+'
+
+test_expect_success 'branch -D cannot delete absolute path' '
+ git branch -f extra &&
+ test_must_fail git branch -D "$(pwd)/.git/refs/heads/extra" &&
+ test_cmp_rev HEAD extra
+'
+
+test_expect_success 'git branch cannot create a badly named ref' '
+ test_when_finished "rm -f .git/refs/heads/broken...ref" &&
+ test_must_fail git branch broken...ref &&
+ git branch >output &&
+ ! grep -e "broken\.\.\.ref" output
+'
+
+test_expect_success 'branch -m cannot rename to a bad ref name' '
+ test_when_finished "rm -f .git/refs/heads/broken...ref" &&
+ test_might_fail git branch -D goodref &&
+ git branch goodref &&
+ test_must_fail git branch -m goodref broken...ref &&
+ test_cmp_rev master goodref &&
+ git branch >output &&
+ ! grep -e "broken\.\.\.ref" output
+'
+
+test_expect_failure 'branch -m can rename from a bad ref name' '
+ cp .git/refs/heads/master .git/refs/heads/broken...ref &&
+ test_when_finished "rm -f .git/refs/heads/broken...ref" &&
+ git branch -m broken...ref renamed &&
+ test_cmp_rev master renamed &&
+ git branch >output &&
+ ! grep -e "broken\.\.\.ref" output
+'
+
+test_expect_success 'push cannot create a badly named ref' '
+ test_when_finished "rm -f .git/refs/heads/broken...ref" &&
+ test_must_fail git push "file://$(pwd)" HEAD:refs/heads/broken...ref &&
+ git branch >output &&
+ ! grep -e "broken\.\.\.ref" output
+'
+
+test_expect_failure 'push --mirror can delete badly named ref' '
+ top=$(pwd) &&
+ git init src &&
+ git init dest &&
+
+ (
+ cd src &&
+ test_commit one
+ ) &&
+ (
+ cd dest &&
+ test_commit two &&
+ git checkout --detach &&
+ cp .git/refs/heads/master .git/refs/heads/broken...ref
+ ) &&
+ git -C src push --mirror "file://$top/dest" &&
+ git -C dest branch >output &&
+ ! grep -e "broken\.\.\.ref" output
+'
+
+test_expect_success 'rev-parse skips symref pointing to broken name' '
+ test_when_finished "rm -f .git/refs/heads/broken...ref" &&
+ git branch shadow one &&
+ cp .git/refs/heads/master .git/refs/heads/broken...ref &&
+ git symbolic-ref refs/tags/shadow refs/heads/broken...ref &&
+
+ git rev-parse --verify one >expect &&
+ git rev-parse --verify shadow >actual 2>err &&
+ test_cmp expect actual &&
+ test_i18ngrep "ignoring.*refs/tags/shadow" err
+'
+
+test_expect_success 'update-ref --no-deref -d can delete reference to broken name' '
+ git symbolic-ref refs/heads/badname refs/heads/broken...ref &&
+ test_when_finished "rm -f .git/refs/heads/badname" &&
+ test_path_is_file .git/refs/heads/badname &&
+ git update-ref --no-deref -d refs/heads/badname &&
+ test_path_is_missing .git/refs/heads/badname
+'
+
+test_expect_success 'update-ref -d can delete broken name' '
+ cp .git/refs/heads/master .git/refs/heads/broken...ref &&
+ test_when_finished "rm -f .git/refs/heads/broken...ref" &&
+ git update-ref -d refs/heads/broken...ref &&
+ git branch >output &&
+ ! grep -e "broken\.\.\.ref" output
+'
+
+test_expect_success 'update-ref -d cannot delete non-ref in .git dir' '
+ echo precious >.git/my-private-file &&
+ echo precious >expect &&
+ test_must_fail git update-ref -d my-private-file &&
+ test_cmp expect .git/my-private-file
+'
+
+test_expect_success 'update-ref -d cannot delete absolute path' '
+ git branch -f extra &&
+ test_must_fail git update-ref -d "$(pwd)/.git/refs/heads/extra" &&
+ test_cmp_rev HEAD extra
+'
+
+test_expect_success 'update-ref --stdin fails create with bad ref name' '
+ echo "create ~a refs/heads/master" >stdin &&
+ test_must_fail git update-ref --stdin <stdin 2>err &&
+ grep "fatal: invalid ref format: ~a" err
+'
+
+test_expect_success 'update-ref --stdin fails update with bad ref name' '
+ echo "update ~a refs/heads/master" >stdin &&
+ test_must_fail git update-ref --stdin <stdin 2>err &&
+ grep "fatal: invalid ref format: ~a" err
+'
+
+test_expect_success 'update-ref --stdin fails delete with bad ref name' '
+ echo "delete ~a refs/heads/master" >stdin &&
+ test_must_fail git update-ref --stdin <stdin 2>err &&
+ grep "fatal: invalid ref format: ~a" err
+'
+
+test_expect_success 'update-ref --stdin -z fails create with bad ref name' '
+ printf "%s\0" "create ~a " refs/heads/master >stdin &&
+ test_must_fail git update-ref -z --stdin <stdin 2>err &&
+ grep "fatal: invalid ref format: ~a " err
+'
+
+test_expect_success 'update-ref --stdin -z fails update with bad ref name' '
+ printf "%s\0" "update ~a" refs/heads/master "" >stdin &&
+ test_must_fail git update-ref -z --stdin <stdin 2>err &&
+ grep "fatal: invalid ref format: ~a" err
+'
+
+test_expect_success 'update-ref --stdin -z fails delete with bad ref name' '
+ printf "%s\0" "delete ~a" refs/heads/master >stdin &&
+ test_must_fail git update-ref -z --stdin <stdin 2>err &&
+ grep "fatal: invalid ref format: ~a" err
+'
+
+test_done
diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index ac31b711f..432921b6b 100755
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -285,6 +285,15 @@ test_expect_success 'deleting a dangling symref' '
test_i18ncmp expect actual
'
+test_expect_success 'deleting a self-referential symref' '
+ git symbolic-ref refs/heads/self-reference refs/heads/self-reference &&
+ test_path_is_file .git/refs/heads/self-reference &&
+ echo "Deleted branch self-reference (was refs/heads/self-reference)." >expect &&
+ git branch -d self-reference >actual &&
+ test_path_is_missing .git/refs/heads/self-reference &&
+ test_i18ncmp expect actual
+'
+
test_expect_success 'renaming a symref is not allowed' '
git symbolic-ref refs/heads/master2 refs/heads/master &&
test_must_fail git branch -m master2 master3 &&
diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh
index 54d78079e..69f11bd40 100755
--- a/t/t7001-mv.sh
+++ b/t/t7001-mv.sh
@@ -350,10 +350,11 @@ test_expect_success 'git mv moves a submodule with a .git directory and .gitmodu
'
test_expect_success 'git mv moves a submodule with gitfile' '
- rm -rf mod/sub &&
+ rm -rf mod &&
git reset --hard &&
git submodule update &&
entry="$(git ls-files --stage sub | cut -f 1)" &&
+ mkdir mod &&
(
cd mod &&
git mv ../sub/ .
@@ -372,11 +373,12 @@ test_expect_success 'git mv moves a submodule with gitfile' '
'
test_expect_success 'mv does not complain when no .gitmodules file is found' '
- rm -rf mod/sub &&
+ rm -rf mod &&
git reset --hard &&
git submodule update &&
git rm .gitmodules &&
entry="$(git ls-files --stage sub | cut -f 1)" &&
+ mkdir mod &&
git mv sub mod/sub 2>actual.err &&
! test -s actual.err &&
! test -e sub &&
@@ -390,11 +392,12 @@ test_expect_success 'mv does not complain when no .gitmodules file is found' '
'
test_expect_success 'mv will error out on a modified .gitmodules file unless staged' '
- rm -rf mod/sub &&
+ rm -rf mod &&
git reset --hard &&
git submodule update &&
git config -f .gitmodules foo.bar true &&
entry="$(git ls-files --stage sub | cut -f 1)" &&
+ mkdir mod &&
test_must_fail git mv sub mod/sub 2>actual.err &&
test -s actual.err &&
test -e sub &&
@@ -413,13 +416,14 @@ test_expect_success 'mv will error out on a modified .gitmodules file unless sta
'
test_expect_success 'mv issues a warning when section is not found in .gitmodules' '
- rm -rf mod/sub &&
+ rm -rf mod &&
git reset --hard &&
git submodule update &&
git config -f .gitmodules --remove-section submodule.sub &&
git add .gitmodules &&
entry="$(git ls-files --stage sub | cut -f 1)" &&
echo "warning: Could not find section in .gitmodules where path=sub" >expect.err &&
+ mkdir mod &&
git mv sub mod/sub 2>actual.err &&
test_i18ncmp expect.err actual.err &&
! test -e sub &&
@@ -433,9 +437,10 @@ test_expect_success 'mv issues a warning when section is not found in .gitmodule
'
test_expect_success 'mv --dry-run does not touch the submodule or .gitmodules' '
- rm -rf mod/sub &&
+ rm -rf mod &&
git reset --hard &&
git submodule update &&
+ mkdir mod &&
git mv -n sub mod/sub 2>actual.err &&
test -f sub/.git &&
git diff-index --exit-code HEAD &&
diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh
index 8df0445a8..37c2d633f 100755
--- a/t/t9300-fast-import.sh
+++ b/t/t9300-fast-import.sh
@@ -347,36 +347,6 @@ test_expect_success 'B: fail on invalid blob sha1' '
rm -f .git/objects/pack_* .git/objects/index_*
cat >input <<INPUT_END
-commit .badbranchname
-committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
-data <<COMMIT
-corrupt
-COMMIT
-
-from refs/heads/master
-
-INPUT_END
-test_expect_success 'B: fail on invalid branch name ".badbranchname"' '
- test_must_fail git fast-import <input
-'
-rm -f .git/objects/pack_* .git/objects/index_*
-
-cat >input <<INPUT_END
-commit bad[branch]name
-committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
-data <<COMMIT
-corrupt
-COMMIT
-
-from refs/heads/master
-
-INPUT_END
-test_expect_success 'B: fail on invalid branch name "bad[branch]name"' '
- test_must_fail git fast-import <input
-'
-rm -f .git/objects/pack_* .git/objects/index_*
-
-cat >input <<INPUT_END
commit TEMP_TAG
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
diff --git a/transport-helper.c b/transport-helper.c
index 2b24d51a2..9b2962041 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -897,7 +897,10 @@ static int push_refs_with_export(struct transport *transport,
int flag;
/* Follow symbolic refs (mainly for HEAD). */
- name = resolve_ref_unsafe(ref->peer_ref->name, sha1, 1, &flag);
+ name = resolve_ref_unsafe(
+ ref->peer_ref->name,
+ RESOLVE_REF_READING,
+ sha1, &flag);
if (!name || !(flag & REF_ISSYMREF))
name = ref->peer_ref->name;
diff --git a/transport.c b/transport.c
index 055d2a27d..b56620ed7 100644
--- a/transport.c
+++ b/transport.c
@@ -168,7 +168,8 @@ static void set_upstreams(struct transport *transport, struct ref *refs,
/* Follow symbolic refs (mainly for HEAD). */
localname = ref->peer_ref->name;
remotename = ref->name;
- tmp = resolve_ref_unsafe(localname, sha, 1, &flag);
+ tmp = resolve_ref_unsafe(localname, RESOLVE_REF_READING,
+ sha, &flag);
if (tmp && flag & REF_ISSYMREF &&
starts_with(tmp, "refs/heads/"))
localname = tmp;
@@ -743,7 +744,7 @@ void transport_print_push_status(const char *dest, struct ref *refs,
unsigned char head_sha1[20];
char *head;
- head = resolve_refdup("HEAD", head_sha1, 1, NULL);
+ head = resolve_refdup("HEAD", RESOLVE_REF_READING, head_sha1, NULL);
if (verbose) {
for (ref = refs; ref; ref = ref->next)
diff --git a/upload-pack.c b/upload-pack.c
index c789ec005..ac9ac1592 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -744,7 +744,7 @@ static int find_symref(const char *refname, const unsigned char *sha1, int flag,
if ((flag & REF_ISSYMREF) == 0)
return 0;
- symref_target = resolve_ref_unsafe(refname, unused, 0, &flag);
+ symref_target = resolve_ref_unsafe(refname, 0, unused, &flag);
if (!symref_target || (flag & REF_ISSYMREF) == 0)
die("'%s' is a symref but it is not?", refname);
item = string_list_append(cb_data, refname);
diff --git a/walker.c b/walker.c
index 18a67d33c..f149371e7 100644
--- a/walker.c
+++ b/walker.c
@@ -300,14 +300,13 @@ int walker_fetch(struct walker *walker, int targets, char **target,
strbuf_addf(&refname, "refs/%s", write_ref[i]);
if (ref_transaction_update(transaction, refname.buf,
&sha1[20 * i], NULL, 0, 0,
+ msg ? msg : "fetch (unknown)",
&err)) {
error("%s", err.buf);
goto done;
}
}
- if (ref_transaction_commit(transaction,
- msg ? msg : "fetch (unknown)",
- &err)) {
+ if (ref_transaction_commit(transaction, &err)) {
error("%s", err.buf);
goto done;
}
diff --git a/wrapper.c b/wrapper.c
index 5b77d2a1a..007ec0d8e 100644
--- a/wrapper.c
+++ b/wrapper.c
@@ -466,17 +466,29 @@ int xmkstemp_mode(char *template, int mode)
static int warn_if_unremovable(const char *op, const char *file, int rc)
{
- if (rc < 0) {
- int err = errno;
- if (ENOENT != err) {
- warning("unable to %s %s: %s",
- op, file, strerror(errno));
- errno = err;
- }
- }
+ int err;
+ if (!rc || errno == ENOENT)
+ return 0;
+ err = errno;
+ warning("unable to %s %s: %s", op, file, strerror(errno));
+ errno = err;
return rc;
}
+int unlink_or_msg(const char *file, struct strbuf *err)
+{
+ int rc = unlink(file);
+
+ assert(err);
+
+ if (!rc || errno == ENOENT)
+ return 0;
+
+ strbuf_addf(err, "unable to unlink %s: %s",
+ file, strerror(errno));
+ return -1;
+}
+
int unlink_or_warn(const char *file)
{
return warn_if_unremovable("unlink", file, unlink(file));
diff --git a/wt-status.c b/wt-status.c
index 1bf5d7254..f367066f9 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -128,7 +128,7 @@ void wt_status_prepare(struct wt_status *s)
s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
s->use_color = -1;
s->relative_paths = 1;
- s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
+ s->branch = resolve_refdup("HEAD", 0, sha1, NULL);
s->reference = "HEAD";
s->fp = stdout;
s->index_file = get_index_file();