#include "sequencer.h"
#include "string-list.h"
#include "packfile.h"
+#include "tag.h"
#define DEFAULT_TWOHEAD (1<<0)
#define DEFAULT_OCTOPUS (1<<1)
* We ignore errors in 'gc --auto', since the
* user should see them.
*/
- close_all_packs();
+ close_all_packs(the_repository->objects);
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
}
}
if (desc && desc->obj && desc->obj->type == OBJ_TAG) {
strbuf_addf(msg, "%s\t\t%s '%s'\n",
oid_to_hex(&desc->obj->oid),
- typename(desc->obj->type),
+ type_name(desc->obj->type),
remote);
goto cleanup;
}
static void write_tree_trivial(struct object_id *oid)
{
- if (write_cache_as_tree(oid->hash, 0, NULL))
+ if (write_cache_as_tree(oid, 0, NULL))
die(_("git write-tree failed to write a tree"));
}
struct commit_list *remoteheads,
struct commit *head)
{
- static struct lock_file lock;
+ struct lock_file lock = LOCK_INIT;
const char *head_arg = "HEAD";
hold_locked_index(&lock, LOCK_DIE_ON_ERROR);
refresh_cache(REFRESH_QUIET);
- if (active_cache_changed &&
- write_locked_index(&the_index, &lock, COMMIT_LOCK))
+ if (write_locked_index(&the_index, &lock,
+ COMMIT_LOCK | SKIP_IF_UNCHANGED))
return error(_("Unable to write index."));
- rollback_lock_file(&lock);
if (!strcmp(strategy, "recursive") || !strcmp(strategy, "subtree")) {
int clean, x;
remoteheads->item, reversed, &result);
if (clean < 0)
exit(128);
- if (active_cache_changed &&
- write_locked_index(&the_index, &lock, COMMIT_LOCK))
+ if (write_locked_index(&the_index, &lock,
+ COMMIT_LOCK | SKIP_IF_UNCHANGED))
die (_("unable to write %s"), get_index_file());
- rollback_lock_file(&lock);
return clean ? 0 : 1;
} else {
return try_merge_command(strategy, xopts_nr, xopts,
{
struct object_id result_tree, result_commit;
struct commit_list *parents, **pptr = &parents;
- static struct lock_file lock;
+ struct lock_file lock = LOCK_INIT;
hold_locked_index(&lock, LOCK_DIE_ON_ERROR);
refresh_cache(REFRESH_QUIET);
- if (active_cache_changed &&
- write_locked_index(&the_index, &lock, COMMIT_LOCK))
+ if (write_locked_index(&the_index, &lock,
+ COMMIT_LOCK | SKIP_IF_UNCHANGED))
return error(_("Unable to write index."));
- rollback_lock_file(&lock);
write_tree_trivial(&result_tree);
printf(_("Wonderful.\n"));
return remoteheads;
}
+static int merging_a_throwaway_tag(struct commit *commit)
+{
+ char *tag_ref;
+ struct object_id oid;
+ int is_throwaway_tag = 0;
+
+ /* Are we merging a tag? */
+ if (!merge_remote_util(commit) ||
+ !merge_remote_util(commit)->obj ||
+ merge_remote_util(commit)->obj->type != OBJ_TAG)
+ return is_throwaway_tag;
+
+ /*
+ * Now we know we are merging a tag object. Are we downstream
+ * and following the tags from upstream? If so, we must have
+ * the tag object pointed at by "refs/tags/$T" where $T is the
+ * tagname recorded in the tag object. We want to allow such
+ * a "just to catch up" merge to fast-forward.
+ *
+ * Otherwise, we are playing an integrator's role, making a
+ * merge with a throw-away tag from a contributor with
+ * something like "git pull $contributor $signed_tag".
+ * We want to forbid such a merge from fast-forwarding
+ * by default; otherwise we would not keep the signature
+ * anywhere.
+ */
+ tag_ref = xstrfmt("refs/tags/%s",
+ ((struct tag *)merge_remote_util(commit)->obj)->tag);
+ if (!read_ref(tag_ref, &oid) &&
+ !oidcmp(&oid, &merge_remote_util(commit)->obj->oid))
+ is_throwaway_tag = 0;
+ else
+ is_throwaway_tag = 1;
+ free(tag_ref);
+ return is_throwaway_tag;
+}
+
int cmd_merge(int argc, const char **argv, const char *prefix)
{
struct object_id result_tree, stash, head_oid;
check_commit_signature(commit, &signature_check);
- find_unique_abbrev_r(hex, commit->object.oid.hash, DEFAULT_ABBREV);
+ find_unique_abbrev_r(hex, &commit->object.oid, DEFAULT_ABBREV);
switch (signature_check.result) {
case 'G':
break;
oid_to_hex(&commit->object.oid));
setenv(buf.buf, merge_remote_util(commit)->name, 1);
strbuf_reset(&buf);
- if (fast_forward != FF_ONLY &&
- merge_remote_util(commit) &&
- merge_remote_util(commit)->obj &&
- merge_remote_util(commit)->obj->type == OBJ_TAG)
+ if (fast_forward != FF_ONLY && merging_a_throwaway_tag(commit))
fast_forward = FF_NO;
}
if (verbosity >= 0) {
printf(_("Updating %s..%s\n"),
- find_unique_abbrev(head_commit->object.oid.hash,
+ find_unique_abbrev(&head_commit->object.oid,
DEFAULT_ABBREV),
- find_unique_abbrev(remoteheads->item->object.oid.hash,
+ find_unique_abbrev(&remoteheads->item->object.oid,
DEFAULT_ABBREV));
}
strbuf_addstr(&msg, "Fast-forward");