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notes-merge: convert notes_merge* to struct object_id 

Convert notes_merge and notes_merge_commit to use struct object_id.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Brandon Williams 2017-05-30 10:30:58 -07:00 committed by Junio C Hamano
parent 7b8dea0c75
commit 5237e0eb59
3 changed files with 42 additions and 42 deletions
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6
builtin/notes.c
View File

@ -724,7 +724,7 @@ static int merge_commit(struct notes_merge_options *o)
if (!o->local_ref)
die(_("failed to resolve NOTES_MERGE_REF"));
if (notes_merge_commit(o, t, partial, oid.hash))
if (notes_merge_commit(o, t, partial, &oid))
die(_("failed to finalize notes merge"));
/* Reuse existing commit message in reflog message */
@ -842,9 +842,9 @@ static int merge(int argc, const char **argv, const char *prefix)
remote_ref.buf, default_notes_ref());
strbuf_add(&(o.commit_msg), msg.buf + 7, msg.len - 7); /* skip "notes: " */
result = notes_merge(&o, t, result_oid.hash);
result = notes_merge(&o, t, &result_oid);
if (result >= 0) /* Merge resulted (trivially) in result_sha1 */
if (result >= 0) /* Merge resulted (trivially) in result_oid */
/* Update default notes ref with new commit */
update_ref(msg.buf, default_notes_ref(), result_oid.hash, NULL,
0, UPDATE_REFS_DIE_ON_ERR);

58
notes-merge.c
View File

@ -533,17 +533,17 @@ static int merge_from_diffs(struct notes_merge_options *o,
int notes_merge(struct notes_merge_options *o,
struct notes_tree *local_tree,
unsigned char *result_sha1)
struct object_id *result_oid)
{
struct object_id local_oid, remote_oid;
struct commit *local, *remote;
struct commit_list *bases = NULL;
const unsigned char *base_sha1, *base_tree_sha1;
const struct object_id *base_oid, *base_tree_oid;
int result = 0;
assert(o->local_ref && o->remote_ref);
assert(!strcmp(o->local_ref, local_tree->ref));
hashclr(result_sha1);
oidclr(result_oid);
trace_printf("notes_merge(o->local_ref = %s, o->remote_ref = %s)\n",
o->local_ref, o->remote_ref);
@ -553,16 +553,16 @@ int notes_merge(struct notes_merge_options *o,
die("Failed to resolve local notes ref '%s'", o->local_ref);
else if (!check_refname_format(o->local_ref, 0) &&
is_null_oid(&local_oid))
local = NULL; /* local_sha1 == null_sha1 indicates unborn ref */
local = NULL; /* local_oid == null_oid indicates unborn ref */
else if (!(local = lookup_commit_reference(&local_oid)))
die("Could not parse local commit %s (%s)",
oid_to_hex(&local_oid), o->local_ref);
trace_printf("\tlocal commit: %.7s\n", oid_to_hex(&local_oid));
/* Dereference o->remote_ref into remote_sha1 */
/* Dereference o->remote_ref into remote_oid */
if (get_oid(o->remote_ref, &remote_oid)) {
/*
* Failed to get remote_sha1. If o->remote_ref looks like an
* Failed to get remote_oid. If o->remote_ref looks like an
* unborn ref, perform the merge using an empty notes tree.
*/
if (!check_refname_format(o->remote_ref, 0)) {
@ -583,12 +583,12 @@ int notes_merge(struct notes_merge_options *o,
"(%s)", o->remote_ref, o->local_ref);
if (!local) {
/* result == remote commit */
hashcpy(result_sha1, remote_oid.hash);
oidcpy(result_oid, &remote_oid);
goto found_result;
}
if (!remote) {
/* result == local commit */
hashcpy(result_sha1, local_oid.hash);
oidcpy(result_oid, &local_oid);
goto found_result;
}
assert(local && remote);
@ -596,47 +596,47 @@ int notes_merge(struct notes_merge_options *o,
/* Find merge bases */
bases = get_merge_bases(local, remote);
if (!bases) {
base_sha1 = null_sha1;
base_tree_sha1 = EMPTY_TREE_SHA1_BIN;
base_oid = &null_oid;
base_tree_oid = &empty_tree_oid;
if (o->verbosity >= 4)
printf("No merge base found; doing history-less merge\n");
} else if (!bases->next) {
base_sha1 = bases->item->object.oid.hash;
base_tree_sha1 = bases->item->tree->object.oid.hash;
base_oid = &bases->item->object.oid;
base_tree_oid = &bases->item->tree->object.oid;
if (o->verbosity >= 4)
printf("One merge base found (%.7s)\n",
sha1_to_hex(base_sha1));
oid_to_hex(base_oid));
} else {
/* TODO: How to handle multiple merge-bases? */
base_sha1 = bases->item->object.oid.hash;
base_tree_sha1 = bases->item->tree->object.oid.hash;
base_oid = &bases->item->object.oid;
base_tree_oid = &bases->item->tree->object.oid;
if (o->verbosity >= 3)
printf("Multiple merge bases found. Using the first "
"(%.7s)\n", sha1_to_hex(base_sha1));
"(%.7s)\n", oid_to_hex(base_oid));
}
if (o->verbosity >= 4)
printf("Merging remote commit %.7s into local commit %.7s with "
"merge-base %.7s\n", oid_to_hex(&remote->object.oid),
oid_to_hex(&local->object.oid),
sha1_to_hex(base_sha1));
oid_to_hex(base_oid));
if (!hashcmp(remote->object.oid.hash, base_sha1)) {
if (!oidcmp(&remote->object.oid, base_oid)) {
/* Already merged; result == local commit */
if (o->verbosity >= 2)
printf("Already up-to-date!\n");
hashcpy(result_sha1, local->object.oid.hash);
oidcpy(result_oid, &local->object.oid);
goto found_result;
}
if (!hashcmp(local->object.oid.hash, base_sha1)) {
if (!oidcmp(&local->object.oid, base_oid)) {
/* Fast-forward; result == remote commit */
if (o->verbosity >= 2)
printf("Fast-forward\n");
hashcpy(result_sha1, remote->object.oid.hash);
oidcpy(result_oid, &remote->object.oid);
goto found_result;
}
result = merge_from_diffs(o, base_tree_sha1, local->tree->object.oid.hash,
result = merge_from_diffs(o, base_tree_oid->hash, local->tree->object.oid.hash,
remote->tree->object.oid.hash, local_tree);
if (result != 0) { /* non-trivial merge (with or without conflicts) */
@ -646,28 +646,28 @@ int notes_merge(struct notes_merge_options *o,
commit_list_insert(local, &parents);
create_notes_commit(local_tree, parents,
o->commit_msg.buf, o->commit_msg.len,
result_sha1);
result_oid->hash);
}
found_result:
free_commit_list(bases);
strbuf_release(&(o->commit_msg));
trace_printf("notes_merge(): result = %i, result_sha1 = %.7s\n",
result, sha1_to_hex(result_sha1));
trace_printf("notes_merge(): result = %i, result_oid = %.7s\n",
result, oid_to_hex(result_oid));
return result;
}
int notes_merge_commit(struct notes_merge_options *o,
struct notes_tree *partial_tree,
struct commit *partial_commit,
unsigned char *result_sha1)
struct object_id *result_oid)
{
/*
* Iterate through files in .git/NOTES_MERGE_WORKTREE and add all
* found notes to 'partial_tree'. Write the updated notes tree to
* the DB, and commit the resulting tree object while reusing the
* commit message and parents from 'partial_commit'.
* Finally store the new commit object SHA1 into 'result_sha1'.
* Finally store the new commit object OID into 'result_oid'.
*/
DIR *dir;
struct dirent *e;
@ -721,11 +721,11 @@ int notes_merge_commit(struct notes_merge_options *o,
}
create_notes_commit(partial_tree, partial_commit->parents,
msg, strlen(msg), result_sha1);
msg, strlen(msg), result_oid->hash);
unuse_commit_buffer(partial_commit, buffer);
if (o->verbosity >= 4)
printf("Finalized notes merge commit: %s\n",
sha1_to_hex(result_sha1));
oid_to_hex(result_oid));
strbuf_release(&path);
closedir(dir);
return 0;

20
notes-merge.h
View File

@ -32,16 +32,16 @@ void init_notes_merge_options(struct notes_merge_options *o);
* outcomes:
*
* 1. The merge trivially results in an existing commit (e.g. fast-forward or
* already-up-to-date). 'local_tree' is untouched, the SHA1 of the result
* is written into 'result_sha1' and 0 is returned.
* already-up-to-date). 'local_tree' is untouched, the OID of the result
* is written into 'result_oid' and 0 is returned.
* 2. The merge successfully completes, producing a merge commit. local_tree
* contains the updated notes tree, the SHA1 of the resulting commit is
* written into 'result_sha1', and 1 is returned.
* contains the updated notes tree, the OID of the resulting commit is
* written into 'result_oid', and 1 is returned.
* 3. The merge results in conflicts. This is similar to #2 in that the
* partial merge result (i.e. merge result minus the unmerged entries)
* are stored in 'local_tree', and the SHA1 or the resulting commit
* are stored in 'local_tree', and the OID or the resulting commit
* (to be amended when the conflicts have been resolved) is written into
* 'result_sha1'. The unmerged entries are written into the
* 'result_oid'. The unmerged entries are written into the
* .git/NOTES_MERGE_WORKTREE directory with conflict markers.
* -1 is returned.
*
@ -52,7 +52,7 @@ void init_notes_merge_options(struct notes_merge_options *o);
*/
int notes_merge(struct notes_merge_options *o,
struct notes_tree *local_tree,
unsigned char *result_sha1);
struct object_id *result_oid);
/*
* Finalize conflict resolution from an earlier notes_merge()
@ -62,13 +62,13 @@ int notes_merge(struct notes_merge_options *o,
* call to notes_merge().
*
* This function will add the (now resolved) notes in .git/NOTES_MERGE_WORKTREE
* to 'partial_tree', and create a final notes merge commit, the SHA1 of which
* will be stored in 'result_sha1'.
* to 'partial_tree', and create a final notes merge commit, the OID of which
* will be stored in 'result_oid'.
*/
int notes_merge_commit(struct notes_merge_options *o,
struct notes_tree *partial_tree,
struct commit *partial_commit,
unsigned char *result_sha1);
struct object_id *result_oid);
/*
* Abort conflict resolution from an earlier notes_merge()