reflog + refs-backend: move "verbose" out of the backend

Move the handling of the "verbose" flag entirely out of "refs/files-backend.c" and into "builtin/reflog.c". This allows the backend to stop knowing about the EXPIRE_REFLOGS_VERBOSE flag. The expire_reflog_ent() function shouldn't need to deal with the implementation detail of whether or not we're emitting verbose output, by doing this the --verbose output becomes backend-agnostic, so reftable will get the same output. I think the output is rather bad currently, and should e.g. be implemented with some better future mode of progress.[ch], but that's a topic for another improvement. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ævar Arnfjörð Bjarmason committed Dec 22, 2021 at 05:06 UTC fcd2c3d9d854712e7fbb8e7be5a809029aab0a84
3 files changed +68 -35
builtin/reflog.c
+47 -9
@@ -45,6 +45,7 @@ struct expire_reflog_policy_cb {
45 struct cmd_reflog_expire_cb cmd;
46 struct commit *tip_commit;
47 struct commit_list *tips;
48 + unsigned int dry_run:1;
49 };
50
51 struct worktree_reflogs {
@@ -319,6 +320,28 @@ static int should_expire_reflog_ent(struct object_id *ooid, struct object_id *no
320 return 0;
321 }
322
323 +static int should_expire_reflog_ent_verbose(struct object_id *ooid,
324 + struct object_id *noid,
325 + const char *email,
326 + timestamp_t timestamp, int tz,
327 + const char *message, void *cb_data)
328 +{
329 + struct expire_reflog_policy_cb *cb = cb_data;
330 + int expire;
331 +
332 + expire = should_expire_reflog_ent(ooid, noid, email, timestamp, tz,
333 + message, cb);
334 +
335 + if (!expire)
336 + printf("keep %s", message);
337 + else if (cb->dry_run)
338 + printf("would prune %s", message);
339 + else
340 + printf("prune %s", message);
341 +
342 + return expire;
343 +}
344 +
345 static int push_tip_to_list(const char *refname, const struct object_id *oid,
346 int flags, void *cb_data)
347 {
@@ -539,6 +562,8 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
562 int i, status, do_all, all_worktrees = 1;
563 int explicit_expiry = 0;
564 unsigned int flags = 0;
565 + int verbose = 0;
566 + reflog_expiry_should_prune_fn *should_prune_fn = should_expire_reflog_ent;
567
568 default_reflog_expire_unreachable = now - 30 * 24 * 3600;
569 default_reflog_expire = now - 90 * 24 * 3600;
@@ -576,7 +601,7 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
601 else if (!strcmp(arg, "--single-worktree"))
602 all_worktrees = 0;
603 else if (!strcmp(arg, "--verbose"))
579 - flags |= EXPIRE_REFLOGS_VERBOSE;
604 + verbose = 1;
605 else if (!strcmp(arg, "--")) {
606 i++;
607 break;
@@ -587,6 +612,9 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
612 break;
613 }
614
615 + if (verbose)
616 + should_prune_fn = should_expire_reflog_ent_verbose;
617 +
618 /*
619 * We can trust the commits and objects reachable from refs
620 * even in older repository. We cannot trust what's reachable
@@ -599,10 +627,10 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
627 revs.do_not_die_on_missing_tree = 1;
628 revs.ignore_missing = 1;
629 revs.ignore_missing_links = 1;
602 - if (flags & EXPIRE_REFLOGS_VERBOSE)
630 + if (verbose)
631 printf(_("Marking reachable objects..."));
632 mark_reachable_objects(&revs, 0, 0, NULL);
605 - if (flags & EXPIRE_REFLOGS_VERBOSE)
633 + if (verbose)
634 putchar('\n');
635 }
636
@@ -624,12 +652,15 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
652 free_worktrees(worktrees);
653
654 for_each_string_list_item(item, &collected.reflogs) {
627 - struct expire_reflog_policy_cb cb = { .cmd = cmd };
655 + struct expire_reflog_policy_cb cb = {
656 + .cmd = cmd,
657 + .dry_run = !!(flags & EXPIRE_REFLOGS_DRY_RUN),
658 + };
659
660 set_reflog_expiry_param(&cb.cmd, explicit_expiry, item->string);
661 status |= reflog_expire(item->string, flags,
662 reflog_expiry_prepare,
632 - should_expire_reflog_ent,
663 + should_prune_fn,
664 reflog_expiry_cleanup,
665 &cb);
666 }
@@ -647,7 +678,7 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
678 set_reflog_expiry_param(&cb.cmd, explicit_expiry, ref);
679 status |= reflog_expire(ref, flags,
680 reflog_expiry_prepare,
650 - should_expire_reflog_ent,
681 + should_prune_fn,
682 reflog_expiry_cleanup,
683 &cb);
684 free(ref);
@@ -670,6 +701,8 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix)
701 struct cmd_reflog_expire_cb cmd = { 0 };
702 int i, status = 0;
703 unsigned int flags = 0;
704 + int verbose = 0;
705 + reflog_expiry_should_prune_fn *should_prune_fn = should_expire_reflog_ent;
706
707 for (i = 1; i < argc; i++) {
708 const char *arg = argv[i];
@@ -680,7 +713,7 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix)
713 else if (!strcmp(arg, "--updateref"))
714 flags |= EXPIRE_REFLOGS_UPDATE_REF;
715 else if (!strcmp(arg, "--verbose"))
683 - flags |= EXPIRE_REFLOGS_VERBOSE;
716 + verbose = 1;
717 else if (!strcmp(arg, "--")) {
718 i++;
719 break;
@@ -691,6 +724,9 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix)
724 break;
725 }
726
727 + if (verbose)
728 + should_prune_fn = should_expire_reflog_ent_verbose;
729 +
730 if (argc - i < 1)
731 return error(_("no reflog specified to delete"));
732
@@ -698,7 +734,9 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix)
734 const char *spec = strstr(argv[i], "@{");
735 char *ep, *ref;
736 int recno;
701 - struct expire_reflog_policy_cb cb = { 0 };
737 + struct expire_reflog_policy_cb cb = {
738 + .dry_run = !!(flags & EXPIRE_REFLOGS_DRY_RUN),
739 + };
740
741 if (!spec) {
742 status |= error(_("not a reflog: %s"), argv[i]);
@@ -723,7 +761,7 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix)
761 cb.cmd = cmd;
762 status |= reflog_expire(ref, flags,
763 reflog_expiry_prepare,
726 - should_expire_reflog_ent,
764 + should_prune_fn,
765 reflog_expiry_cleanup,
766 &cb);
767 free(ref);
refs.h
+1 -2
@@ -820,8 +820,7 @@ enum ref_type ref_type(const char *refname);
820 enum expire_reflog_flags {
821 EXPIRE_REFLOGS_DRY_RUN = 1 << 0,
822 EXPIRE_REFLOGS_UPDATE_REF = 1 << 1,
823 - EXPIRE_REFLOGS_VERBOSE = 1 << 2,
824 - EXPIRE_REFLOGS_REWRITE = 1 << 3
823 + EXPIRE_REFLOGS_REWRITE = 1 << 2,
824 };
825
826 /*
refs/files-backend.c
+20 -24
@@ -3086,11 +3086,12 @@ cleanup:
3086 }
3087
3088 struct expire_reflog_cb {
3089 - unsigned int flags;
3089 reflog_expiry_should_prune_fn *should_prune_fn;
3090 void *policy_cb;
3091 FILE *newlog;
3092 struct object_id last_kept_oid;
3093 + unsigned int rewrite:1,
3094 + dry_run:1;
3095 };
3096
3097 static int expire_reflog_ent(struct object_id *ooid, struct object_id *noid,
@@ -3098,33 +3099,27 @@ static int expire_reflog_ent(struct object_id *ooid, struct object_id *noid,
3099 const char *message, void *cb_data)
3100 {
3101 struct expire_reflog_cb *cb = cb_data;
3101 - struct expire_reflog_policy_cb *policy_cb = cb->policy_cb;
3102 + reflog_expiry_should_prune_fn *fn = cb->should_prune_fn;
3103
3103 - if (cb->flags & EXPIRE_REFLOGS_REWRITE)
3104 + if (cb->rewrite)
3105 ooid = &cb->last_kept_oid;
3106
3106 - if ((*cb->should_prune_fn)(ooid, noid, email, timestamp, tz,
3107 - message, policy_cb)) {
3108 - if (cb->flags & EXPIRE_REFLOGS_DRY_RUN)
3109 - printf("would prune %s", message);
3110 - else if (cb->flags & EXPIRE_REFLOGS_VERBOSE)
3111 - printf("prune %s", message);
3112 - } else {
3113 - if (!(cb->flags & EXPIRE_REFLOGS_DRY_RUN)) {
3114 - fprintf(cb->newlog, "%s %s %s %"PRItime" %+05d\t%s",
3115 - oid_to_hex(ooid), oid_to_hex(noid),
3116 - email, timestamp, tz, message);
3117 - oidcpy(&cb->last_kept_oid, noid);
3118 - }
3119 - if (cb->flags & EXPIRE_REFLOGS_VERBOSE)
3120 - printf("keep %s", message);
3121 - }
3107 + if (fn(ooid, noid, email, timestamp, tz, message, cb->policy_cb))
3108 + return 0;
3109 +
3110 + if (cb->dry_run)
3111 + return 0; /* --dry-run */
3112 +
3113 + fprintf(cb->newlog, "%s %s %s %"PRItime" %+05d\t%s", oid_to_hex(ooid),
3114 + oid_to_hex(noid), email, timestamp, tz, message);
3115 + oidcpy(&cb->last_kept_oid, noid);
3116 +
3117 return 0;
3118 }
3119
3120 static int files_reflog_expire(struct ref_store *ref_store,
3121 const char *refname,
3127 - unsigned int flags,
3122 + unsigned int expire_flags,
3123 reflog_expiry_prepare_fn prepare_fn,
3124 reflog_expiry_should_prune_fn should_prune_fn,
3125 reflog_expiry_cleanup_fn cleanup_fn,
@@ -3142,7 +3137,8 @@ static int files_reflog_expire(struct ref_store *ref_store,
3137 const struct object_id *oid;
3138
3139 memset(&cb, 0, sizeof(cb));
3145 - cb.flags = flags;
3140 + cb.rewrite = !!(expire_flags & EXPIRE_REFLOGS_REWRITE);
3141 + cb.dry_run = !!(expire_flags & EXPIRE_REFLOGS_DRY_RUN);
3142 cb.policy_cb = policy_cb_data;
3143 cb.should_prune_fn = should_prune_fn;
3144
@@ -3178,7 +3174,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
3174
3175 files_reflog_path(refs, &log_file_sb, refname);
3176 log_file = strbuf_detach(&log_file_sb, NULL);
3181 - if (!(flags & EXPIRE_REFLOGS_DRY_RUN)) {
3177 + if (!cb.dry_run) {
3178 /*
3179 * Even though holding $GIT_DIR/logs/$reflog.lock has
3180 * no locking implications, we use the lock_file
@@ -3205,7 +3201,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
3201 refs_for_each_reflog_ent(ref_store, refname, expire_reflog_ent, &cb);
3202 (*cleanup_fn)(cb.policy_cb);
3203
3208 - if (!(flags & EXPIRE_REFLOGS_DRY_RUN)) {
3204 + if (!cb.dry_run) {
3205 /*
3206 * It doesn't make sense to adjust a reference pointed
3207 * to by a symbolic ref based on expiring entries in
@@ -3215,7 +3211,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
3211 */
3212 int update = 0;
3213
3218 - if ((flags & EXPIRE_REFLOGS_UPDATE_REF) &&
3214 + if ((expire_flags & EXPIRE_REFLOGS_UPDATE_REF) &&
3215 !is_null_oid(&cb.last_kept_oid)) {
3216 int ignore_errno;
3217 int type;