patch-id: use stable patch-id for rebases

Git doesn't persist patch-ids during the rebase process, so there is no need to specifically invoke the unstable variant. Use the stable logic for all internal patch-id calculations to minimize the number of code paths and improve test coverage. Signed-off-by: Jerry Zhang <jerry@skydio.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Jerry Zhang committed Oct 24, 2022 at 20:07 UTC 51276c1832d64d3b8f4dfc06c3ef21bf74f1916e
5 files changed +12 -16
builtin/log.c
+1 -1
@@ -1694,7 +1694,7 @@ static void prepare_bases(struct base_tree_info *bases,
1694 struct object_id *patch_id;
1695 if (*commit_base_at(&commit_base, commit))
1696 continue;
1697 - if (commit_patch_id(commit, &diffopt, &oid, 0, 1))
1697 + if (commit_patch_id(commit, &diffopt, &oid, 0))
1698 die(_("cannot get patch id"));
1699 ALLOC_GROW(bases->patch_id, bases->nr_patch_id + 1, bases->alloc_patch_id);
1700 patch_id = bases->patch_id + bases->nr_patch_id;
diff.c
+4 -8
@@ -6174,7 +6174,7 @@ static void patch_id_add_mode(git_hash_ctx *ctx, unsigned mode)
6174 }
6175
6176 /* returns 0 upon success, and writes result into oid */
6177 -static int diff_get_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only, int stable)
6177 +static int diff_get_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only)
6178 {
6179 struct diff_queue_struct *q = &diff_queued_diff;
6180 int i;
@@ -6261,21 +6261,17 @@ static int diff_get_patch_id(struct diff_options *options, struct object_id *oid
6261 return error("unable to generate patch-id diff for %s",
6262 p->one->path);
6263 }
6264 - if (stable)
6265 - flush_one_hunk(oid, &ctx);
6264 + flush_one_hunk(oid, &ctx);
6265 }
6266
6268 - if (!stable)
6269 - the_hash_algo->final_oid_fn(oid, &ctx);
6270 -
6267 return 0;
6268 }
6269
6274 -int diff_flush_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only, int stable)
6270 +int diff_flush_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only)
6271 {
6272 struct diff_queue_struct *q = &diff_queued_diff;
6273 int i;
6278 - int result = diff_get_patch_id(options, oid, diff_header_only, stable);
6274 + int result = diff_get_patch_id(options, oid, diff_header_only);
6275
6276 for (i = 0; i < q->nr; i++)
6277 diff_free_filepair(q->queue[i]);
diff.h
+1 -1
@@ -634,7 +634,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option);
634 int run_diff_index(struct rev_info *revs, unsigned int option);
635
636 int do_diff_cache(const struct object_id *, struct diff_options *);
637 -int diff_flush_patch_id(struct diff_options *, struct object_id *, int, int);
637 +int diff_flush_patch_id(struct diff_options *, struct object_id *, int);
638 void flush_one_hunk(struct object_id *result, git_hash_ctx *ctx);
639
640 int diff_result_code(struct diff_options *, int);
patch-ids.c
+5 -5
@@ -11,7 +11,7 @@ static int patch_id_defined(struct commit *commit)
11 }
12
13 int commit_patch_id(struct commit *commit, struct diff_options *options,
14 - struct object_id *oid, int diff_header_only, int stable)
14 + struct object_id *oid, int diff_header_only)
15 {
16 if (!patch_id_defined(commit))
17 return -1;
@@ -22,7 +22,7 @@ int commit_patch_id(struct commit *commit, struct diff_options *options,
22 else
23 diff_root_tree_oid(&commit->object.oid, "", options);
24 diffcore_std(options);
25 - return diff_flush_patch_id(options, oid, diff_header_only, stable);
25 + return diff_flush_patch_id(options, oid, diff_header_only);
26 }
27
28 /*
@@ -48,11 +48,11 @@ static int patch_id_neq(const void *cmpfn_data,
48 b = container_of(entry_or_key, struct patch_id, ent);
49
50 if (is_null_oid(&a->patch_id) &&
51 - commit_patch_id(a->commit, opt, &a->patch_id, 0, 0))
51 + commit_patch_id(a->commit, opt, &a->patch_id, 0))
52 return error("Could not get patch ID for %s",
53 oid_to_hex(&a->commit->object.oid));
54 if (is_null_oid(&b->patch_id) &&
55 - commit_patch_id(b->commit, opt, &b->patch_id, 0, 0))
55 + commit_patch_id(b->commit, opt, &b->patch_id, 0))
56 return error("Could not get patch ID for %s",
57 oid_to_hex(&b->commit->object.oid));
58 return !oideq(&a->patch_id, &b->patch_id);
@@ -82,7 +82,7 @@ static int init_patch_id_entry(struct patch_id *patch,
82 struct object_id header_only_patch_id;
83
84 patch->commit = commit;
85 - if (commit_patch_id(commit, &ids->diffopts, &header_only_patch_id, 1, 0))
85 + if (commit_patch_id(commit, &ids->diffopts, &header_only_patch_id, 1))
86 return -1;
87
88 hashmap_entry_init(&patch->ent, oidhash(&header_only_patch_id));
patch-ids.h
+1 -1
@@ -20,7 +20,7 @@ struct patch_ids {
20 };
21
22 int commit_patch_id(struct commit *commit, struct diff_options *options,
23 - struct object_id *oid, int, int);
23 + struct object_id *oid, int);
24 int init_patch_ids(struct repository *, struct patch_ids *);
25 int free_patch_ids(struct patch_ids *);
26