4  * Copyright (c) 2010 Johan Herland <johan@herland.net>
 
   6  * Based on git-notes.sh by Johannes Schindelin,
 
   7  * and builtin/tag.c by Kristian Høgsberg and Carlos Rica.
 
  14 #include "object-store.h"
 
  15 #include "repository.h"
 
  20 #include "run-command.h"
 
  21 #include "parse-options.h"
 
  22 #include "string-list.h"
 
  23 #include "notes-merge.h"
 
  24 #include "notes-utils.h"
 
  27 static const char * const git_notes_usage[] = {
 
  28         N_("git notes [--ref <notes-ref>] [list [<object>]]"),
 
  29         N_("git notes [--ref <notes-ref>] add [-f] [--allow-empty] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]"),
 
  30         N_("git notes [--ref <notes-ref>] copy [-f] <from-object> <to-object>"),
 
  31         N_("git notes [--ref <notes-ref>] append [--allow-empty] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]"),
 
  32         N_("git notes [--ref <notes-ref>] edit [--allow-empty] [<object>]"),
 
  33         N_("git notes [--ref <notes-ref>] show [<object>]"),
 
  34         N_("git notes [--ref <notes-ref>] merge [-v | -q] [-s <strategy>] <notes-ref>"),
 
  35         N_("git notes merge --commit [-v | -q]"),
 
  36         N_("git notes merge --abort [-v | -q]"),
 
  37         N_("git notes [--ref <notes-ref>] remove [<object>...]"),
 
  38         N_("git notes [--ref <notes-ref>] prune [-n] [-v]"),
 
  39         N_("git notes [--ref <notes-ref>] get-ref"),
 
  43 static const char * const git_notes_list_usage[] = {
 
  44         N_("git notes [list [<object>]]"),
 
  48 static const char * const git_notes_add_usage[] = {
 
  49         N_("git notes add [<options>] [<object>]"),
 
  53 static const char * const git_notes_copy_usage[] = {
 
  54         N_("git notes copy [<options>] <from-object> <to-object>"),
 
  55         N_("git notes copy --stdin [<from-object> <to-object>]..."),
 
  59 static const char * const git_notes_append_usage[] = {
 
  60         N_("git notes append [<options>] [<object>]"),
 
  64 static const char * const git_notes_edit_usage[] = {
 
  65         N_("git notes edit [<object>]"),
 
  69 static const char * const git_notes_show_usage[] = {
 
  70         N_("git notes show [<object>]"),
 
  74 static const char * const git_notes_merge_usage[] = {
 
  75         N_("git notes merge [<options>] <notes-ref>"),
 
  76         N_("git notes merge --commit [<options>]"),
 
  77         N_("git notes merge --abort [<options>]"),
 
  81 static const char * const git_notes_remove_usage[] = {
 
  82         N_("git notes remove [<object>]"),
 
  86 static const char * const git_notes_prune_usage[] = {
 
  87         N_("git notes prune [<options>]"),
 
  91 static const char * const git_notes_get_ref_usage[] = {
 
  92         N_("git notes get-ref"),
 
  96 static const char note_template[] =
 
  97         N_("Write/edit the notes for the following object:");
 
 106 static void free_note_data(struct note_data *d)
 
 109                 unlink_or_warn(d->edit_path);
 
 112         strbuf_release(&d->buf);
 
 115 static int list_each_note(const struct object_id *object_oid,
 
 116                 const struct object_id *note_oid, char *note_path,
 
 119         printf("%s %s\n", oid_to_hex(note_oid), oid_to_hex(object_oid));
 
 123 static void copy_obj_to_fd(int fd, const struct object_id *oid)
 
 126         enum object_type type;
 
 127         char *buf = read_object_file(oid, &type, &size);
 
 130                         write_or_die(fd, buf, size);
 
 135 static void write_commented_object(int fd, const struct object_id *object)
 
 137         const char *show_args[5] =
 
 138                 {"show", "--stat", "--no-notes", oid_to_hex(object), NULL};
 
 139         struct child_process show = CHILD_PROCESS_INIT;
 
 140         struct strbuf buf = STRBUF_INIT;
 
 141         struct strbuf cbuf = STRBUF_INIT;
 
 143         /* Invoke "git show --stat --no-notes $object" */
 
 144         show.argv = show_args;
 
 149         if (start_command(&show))
 
 150                 die(_("unable to start 'show' for object '%s'"),
 
 153         if (strbuf_read(&buf, show.out, 0) < 0)
 
 154                 die_errno(_("could not read 'show' output"));
 
 155         strbuf_add_commented_lines(&cbuf, buf.buf, buf.len);
 
 156         write_or_die(fd, cbuf.buf, cbuf.len);
 
 158         strbuf_release(&cbuf);
 
 159         strbuf_release(&buf);
 
 161         if (finish_command(&show))
 
 162                 die(_("failed to finish 'show' for object '%s'"),
 
 166 static void prepare_note_data(const struct object_id *object, struct note_data *d,
 
 167                 const struct object_id *old_note)
 
 169         if (d->use_editor || !d->given) {
 
 171                 struct strbuf buf = STRBUF_INIT;
 
 173                 /* write the template message before editing: */
 
 174                 d->edit_path = git_pathdup("NOTES_EDITMSG");
 
 175                 fd = open(d->edit_path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
 
 177                         die_errno(_("could not create file '%s'"), d->edit_path);
 
 180                         write_or_die(fd, d->buf.buf, d->buf.len);
 
 182                         copy_obj_to_fd(fd, old_note);
 
 184                 strbuf_addch(&buf, '\n');
 
 185                 strbuf_add_commented_lines(&buf, "\n", strlen("\n"));
 
 186                 strbuf_add_commented_lines(&buf, _(note_template), strlen(_(note_template)));
 
 187                 strbuf_addch(&buf, '\n');
 
 188                 write_or_die(fd, buf.buf, buf.len);
 
 190                 write_commented_object(fd, object);
 
 193                 strbuf_release(&buf);
 
 194                 strbuf_reset(&d->buf);
 
 196                 if (launch_editor(d->edit_path, &d->buf, NULL)) {
 
 197                         die(_("please supply the note contents using either -m or -F option"));
 
 199                 strbuf_stripspace(&d->buf, 1);
 
 203 static void write_note_data(struct note_data *d, struct object_id *oid)
 
 205         if (write_object_file(d->buf.buf, d->buf.len, blob_type, oid)) {
 
 206                 error(_("unable to write note object"));
 
 208                         error(_("the note contents have been left in %s"),
 
 214 static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
 
 216         struct note_data *d = opt->value;
 
 218         BUG_ON_OPT_NEG(unset);
 
 220         strbuf_grow(&d->buf, strlen(arg) + 2);
 
 222                 strbuf_addch(&d->buf, '\n');
 
 223         strbuf_addstr(&d->buf, arg);
 
 224         strbuf_stripspace(&d->buf, 0);
 
 230 static int parse_file_arg(const struct option *opt, const char *arg, int unset)
 
 232         struct note_data *d = opt->value;
 
 234         BUG_ON_OPT_NEG(unset);
 
 237                 strbuf_addch(&d->buf, '\n');
 
 238         if (!strcmp(arg, "-")) {
 
 239                 if (strbuf_read(&d->buf, 0, 1024) < 0)
 
 240                         die_errno(_("cannot read '%s'"), arg);
 
 241         } else if (strbuf_read_file(&d->buf, arg, 1024) < 0)
 
 242                 die_errno(_("could not open or read '%s'"), arg);
 
 243         strbuf_stripspace(&d->buf, 0);
 
 249 static int parse_reuse_arg(const struct option *opt, const char *arg, int unset)
 
 251         struct note_data *d = opt->value;
 
 253         struct object_id object;
 
 254         enum object_type type;
 
 257         BUG_ON_OPT_NEG(unset);
 
 260                 strbuf_addch(&d->buf, '\n');
 
 262         if (get_oid(arg, &object))
 
 263                 die(_("failed to resolve '%s' as a valid ref."), arg);
 
 264         if (!(buf = read_object_file(&object, &type, &len)))
 
 265                 die(_("failed to read object '%s'."), arg);
 
 266         if (type != OBJ_BLOB) {
 
 268                 die(_("cannot read note data from non-blob object '%s'."), arg);
 
 270         strbuf_add(&d->buf, buf, len);
 
 277 static int parse_reedit_arg(const struct option *opt, const char *arg, int unset)
 
 279         struct note_data *d = opt->value;
 
 280         BUG_ON_OPT_NEG(unset);
 
 282         return parse_reuse_arg(opt, arg, unset);
 
 285 static int notes_copy_from_stdin(int force, const char *rewrite_cmd)
 
 287         struct strbuf buf = STRBUF_INIT;
 
 288         struct notes_rewrite_cfg *c = NULL;
 
 289         struct notes_tree *t = NULL;
 
 291         const char *msg = "Notes added by 'git notes copy'";
 
 294                 c = init_copy_notes_for_rewrite(rewrite_cmd);
 
 298                 init_notes(NULL, NULL, NULL, NOTES_INIT_WRITABLE);
 
 299                 t = &default_notes_tree;
 
 302         while (strbuf_getline_lf(&buf, stdin) != EOF) {
 
 303                 struct object_id from_obj, to_obj;
 
 304                 struct strbuf **split;
 
 307                 split = strbuf_split(&buf, ' ');
 
 308                 if (!split[0] || !split[1])
 
 309                         die(_("malformed input line: '%s'."), buf.buf);
 
 310                 strbuf_rtrim(split[0]);
 
 311                 strbuf_rtrim(split[1]);
 
 312                 if (get_oid(split[0]->buf, &from_obj))
 
 313                         die(_("failed to resolve '%s' as a valid ref."), split[0]->buf);
 
 314                 if (get_oid(split[1]->buf, &to_obj))
 
 315                         die(_("failed to resolve '%s' as a valid ref."), split[1]->buf);
 
 318                         err = copy_note_for_rewrite(c, &from_obj, &to_obj);
 
 320                         err = copy_note(t, &from_obj, &to_obj, force,
 
 321                                         combine_notes_overwrite);
 
 324                         error(_("failed to copy notes from '%s' to '%s'"),
 
 325                               split[0]->buf, split[1]->buf);
 
 329                 strbuf_list_free(split);
 
 333                 commit_notes(the_repository, t, msg);
 
 336                 finish_copy_notes_for_rewrite(the_repository, c, msg);
 
 338         strbuf_release(&buf);
 
 342 static struct notes_tree *init_notes_check(const char *subcommand,
 
 345         struct notes_tree *t;
 
 347         init_notes(NULL, NULL, NULL, flags);
 
 348         t = &default_notes_tree;
 
 350         ref = (flags & NOTES_INIT_WRITABLE) ? t->update_ref : t->ref;
 
 351         if (!starts_with(ref, "refs/notes/"))
 
 353                  * TRANSLATORS: the first %s will be replaced by a git
 
 354                  * notes command: 'add', 'merge', 'remove', etc.
 
 356                 die(_("refusing to %s notes in %s (outside of refs/notes/)"),
 
 361 static int list(int argc, const char **argv, const char *prefix)
 
 363         struct notes_tree *t;
 
 364         struct object_id object;
 
 365         const struct object_id *note;
 
 367         struct option options[] = {
 
 372                 argc = parse_options(argc, argv, prefix, options,
 
 373                                      git_notes_list_usage, 0);
 
 376                 error(_("too many parameters"));
 
 377                 usage_with_options(git_notes_list_usage, options);
 
 380         t = init_notes_check("list", 0);
 
 382                 if (get_oid(argv[0], &object))
 
 383                         die(_("failed to resolve '%s' as a valid ref."), argv[0]);
 
 384                 note = get_note(t, &object);
 
 386                         puts(oid_to_hex(note));
 
 389                         retval = error(_("no note found for object %s."),
 
 390                                        oid_to_hex(&object));
 
 392                 retval = for_each_note(t, 0, list_each_note, NULL);
 
 398 static int append_edit(int argc, const char **argv, const char *prefix);
 
 400 static int add(int argc, const char **argv, const char *prefix)
 
 402         int force = 0, allow_empty = 0;
 
 403         const char *object_ref;
 
 404         struct notes_tree *t;
 
 405         struct object_id object, new_note;
 
 406         const struct object_id *note;
 
 407         struct note_data d = { 0, 0, NULL, STRBUF_INIT };
 
 408         struct option options[] = {
 
 409                 OPT_CALLBACK_F('m', "message", &d, N_("message"),
 
 410                         N_("note contents as a string"), PARSE_OPT_NONEG,
 
 412                 OPT_CALLBACK_F('F', "file", &d, N_("file"),
 
 413                         N_("note contents in a file"), PARSE_OPT_NONEG,
 
 415                 OPT_CALLBACK_F('c', "reedit-message", &d, N_("object"),
 
 416                         N_("reuse and edit specified note object"), PARSE_OPT_NONEG,
 
 418                 OPT_CALLBACK_F('C', "reuse-message", &d, N_("object"),
 
 419                         N_("reuse specified note object"), PARSE_OPT_NONEG,
 
 421                 OPT_BOOL(0, "allow-empty", &allow_empty,
 
 422                         N_("allow storing empty note")),
 
 423                 OPT__FORCE(&force, N_("replace existing notes"), PARSE_OPT_NOCOMPLETE),
 
 427         argc = parse_options(argc, argv, prefix, options, git_notes_add_usage,
 
 428                              PARSE_OPT_KEEP_ARGV0);
 
 431                 error(_("too many parameters"));
 
 432                 usage_with_options(git_notes_add_usage, options);
 
 435         object_ref = argc > 1 ? argv[1] : "HEAD";
 
 437         if (get_oid(object_ref, &object))
 
 438                 die(_("failed to resolve '%s' as a valid ref."), object_ref);
 
 440         t = init_notes_check("add", NOTES_INIT_WRITABLE);
 
 441         note = get_note(t, &object);
 
 448                                 return error(_("Cannot add notes. "
 
 449                                         "Found existing notes for object %s. "
 
 450                                         "Use '-f' to overwrite existing notes"),
 
 451                                         oid_to_hex(&object));
 
 454                          * Redirect to "edit" subcommand.
 
 456                          * We only end up here if none of -m/-F/-c/-C or -f are
 
 457                          * given. The original args are therefore still in
 
 461                         return append_edit(argc, argv, prefix);
 
 463                 fprintf(stderr, _("Overwriting existing notes for object %s\n"),
 
 464                         oid_to_hex(&object));
 
 467         prepare_note_data(&object, &d, note);
 
 468         if (d.buf.len || allow_empty) {
 
 469                 write_note_data(&d, &new_note);
 
 470                 if (add_note(t, &object, &new_note, combine_notes_overwrite))
 
 471                         BUG("combine_notes_overwrite failed");
 
 472                 commit_notes(the_repository, t,
 
 473                              "Notes added by 'git notes add'");
 
 475                 fprintf(stderr, _("Removing note for object %s\n"),
 
 476                         oid_to_hex(&object));
 
 477                 remove_note(t, object.hash);
 
 478                 commit_notes(the_repository, t,
 
 479                              "Notes removed by 'git notes add'");
 
 487 static int copy(int argc, const char **argv, const char *prefix)
 
 489         int retval = 0, force = 0, from_stdin = 0;
 
 490         const struct object_id *from_note, *note;
 
 491         const char *object_ref;
 
 492         struct object_id object, from_obj;
 
 493         struct notes_tree *t;
 
 494         const char *rewrite_cmd = NULL;
 
 495         struct option options[] = {
 
 496                 OPT__FORCE(&force, N_("replace existing notes"), PARSE_OPT_NOCOMPLETE),
 
 497                 OPT_BOOL(0, "stdin", &from_stdin, N_("read objects from stdin")),
 
 498                 OPT_STRING(0, "for-rewrite", &rewrite_cmd, N_("command"),
 
 499                            N_("load rewriting config for <command> (implies "
 
 504         argc = parse_options(argc, argv, prefix, options, git_notes_copy_usage,
 
 507         if (from_stdin || rewrite_cmd) {
 
 509                         error(_("too many parameters"));
 
 510                         usage_with_options(git_notes_copy_usage, options);
 
 512                         return notes_copy_from_stdin(force, rewrite_cmd);
 
 517                 error(_("too few parameters"));
 
 518                 usage_with_options(git_notes_copy_usage, options);
 
 521                 error(_("too many parameters"));
 
 522                 usage_with_options(git_notes_copy_usage, options);
 
 525         if (get_oid(argv[0], &from_obj))
 
 526                 die(_("failed to resolve '%s' as a valid ref."), argv[0]);
 
 528         object_ref = 1 < argc ? argv[1] : "HEAD";
 
 530         if (get_oid(object_ref, &object))
 
 531                 die(_("failed to resolve '%s' as a valid ref."), object_ref);
 
 533         t = init_notes_check("copy", NOTES_INIT_WRITABLE);
 
 534         note = get_note(t, &object);
 
 538                         retval = error(_("Cannot copy notes. Found existing "
 
 539                                        "notes for object %s. Use '-f' to "
 
 540                                        "overwrite existing notes"),
 
 541                                        oid_to_hex(&object));
 
 544                 fprintf(stderr, _("Overwriting existing notes for object %s\n"),
 
 545                         oid_to_hex(&object));
 
 548         from_note = get_note(t, &from_obj);
 
 550                 retval = error(_("missing notes on source object %s. Cannot "
 
 551                                "copy."), oid_to_hex(&from_obj));
 
 555         if (add_note(t, &object, from_note, combine_notes_overwrite))
 
 556                 BUG("combine_notes_overwrite failed");
 
 557         commit_notes(the_repository, t,
 
 558                      "Notes added by 'git notes copy'");
 
 564 static int append_edit(int argc, const char **argv, const char *prefix)
 
 567         const char *object_ref;
 
 568         struct notes_tree *t;
 
 569         struct object_id object, new_note;
 
 570         const struct object_id *note;
 
 572         const char * const *usage;
 
 573         struct note_data d = { 0, 0, NULL, STRBUF_INIT };
 
 574         struct option options[] = {
 
 575                 OPT_CALLBACK_F('m', "message", &d, N_("message"),
 
 576                         N_("note contents as a string"), PARSE_OPT_NONEG,
 
 578                 OPT_CALLBACK_F('F', "file", &d, N_("file"),
 
 579                         N_("note contents in a file"), PARSE_OPT_NONEG,
 
 581                 OPT_CALLBACK_F('c', "reedit-message", &d, N_("object"),
 
 582                         N_("reuse and edit specified note object"), PARSE_OPT_NONEG,
 
 584                 OPT_CALLBACK_F('C', "reuse-message", &d, N_("object"),
 
 585                         N_("reuse specified note object"), PARSE_OPT_NONEG,
 
 587                 OPT_BOOL(0, "allow-empty", &allow_empty,
 
 588                         N_("allow storing empty note")),
 
 591         int edit = !strcmp(argv[0], "edit");
 
 593         usage = edit ? git_notes_edit_usage : git_notes_append_usage;
 
 594         argc = parse_options(argc, argv, prefix, options, usage,
 
 595                              PARSE_OPT_KEEP_ARGV0);
 
 598                 error(_("too many parameters"));
 
 599                 usage_with_options(usage, options);
 
 603                 fprintf(stderr, _("The -m/-F/-c/-C options have been deprecated "
 
 604                         "for the 'edit' subcommand.\n"
 
 605                         "Please use 'git notes add -f -m/-F/-c/-C' instead.\n"));
 
 607         object_ref = 1 < argc ? argv[1] : "HEAD";
 
 609         if (get_oid(object_ref, &object))
 
 610                 die(_("failed to resolve '%s' as a valid ref."), object_ref);
 
 612         t = init_notes_check(argv[0], NOTES_INIT_WRITABLE);
 
 613         note = get_note(t, &object);
 
 615         prepare_note_data(&object, &d, edit && note ? note : NULL);
 
 618                 /* Append buf to previous note contents */
 
 620                 enum object_type type;
 
 621                 char *prev_buf = read_object_file(note, &type, &size);
 
 623                 strbuf_grow(&d.buf, size + 1);
 
 624                 if (d.buf.len && prev_buf && size)
 
 625                         strbuf_insertstr(&d.buf, 0, "\n");
 
 626                 if (prev_buf && size)
 
 627                         strbuf_insert(&d.buf, 0, prev_buf, size);
 
 631         if (d.buf.len || allow_empty) {
 
 632                 write_note_data(&d, &new_note);
 
 633                 if (add_note(t, &object, &new_note, combine_notes_overwrite))
 
 634                         BUG("combine_notes_overwrite failed");
 
 635                 logmsg = xstrfmt("Notes added by 'git notes %s'", argv[0]);
 
 637                 fprintf(stderr, _("Removing note for object %s\n"),
 
 638                         oid_to_hex(&object));
 
 639                 remove_note(t, object.hash);
 
 640                 logmsg = xstrfmt("Notes removed by 'git notes %s'", argv[0]);
 
 642         commit_notes(the_repository, t, logmsg);
 
 650 static int show(int argc, const char **argv, const char *prefix)
 
 652         const char *object_ref;
 
 653         struct notes_tree *t;
 
 654         struct object_id object;
 
 655         const struct object_id *note;
 
 657         struct option options[] = {
 
 661         argc = parse_options(argc, argv, prefix, options, git_notes_show_usage,
 
 665                 error(_("too many parameters"));
 
 666                 usage_with_options(git_notes_show_usage, options);
 
 669         object_ref = argc ? argv[0] : "HEAD";
 
 671         if (get_oid(object_ref, &object))
 
 672                 die(_("failed to resolve '%s' as a valid ref."), object_ref);
 
 674         t = init_notes_check("show", 0);
 
 675         note = get_note(t, &object);
 
 678                 retval = error(_("no note found for object %s."),
 
 679                                oid_to_hex(&object));
 
 681                 const char *show_args[3] = {"show", oid_to_hex(note), NULL};
 
 682                 retval = execv_git_cmd(show_args);
 
 688 static int merge_abort(struct notes_merge_options *o)
 
 693          * Remove .git/NOTES_MERGE_PARTIAL and .git/NOTES_MERGE_REF, and call
 
 694          * notes_merge_abort() to remove .git/NOTES_MERGE_WORKTREE.
 
 697         if (delete_ref(NULL, "NOTES_MERGE_PARTIAL", NULL, 0))
 
 698                 ret += error(_("failed to delete ref NOTES_MERGE_PARTIAL"));
 
 699         if (delete_ref(NULL, "NOTES_MERGE_REF", NULL, REF_NO_DEREF))
 
 700                 ret += error(_("failed to delete ref NOTES_MERGE_REF"));
 
 701         if (notes_merge_abort(o))
 
 702                 ret += error(_("failed to remove 'git notes merge' worktree"));
 
 706 static int merge_commit(struct notes_merge_options *o)
 
 708         struct strbuf msg = STRBUF_INIT;
 
 709         struct object_id oid, parent_oid;
 
 710         struct notes_tree *t;
 
 711         struct commit *partial;
 
 712         struct pretty_print_context pretty_ctx;
 
 713         void *local_ref_to_free;
 
 717          * Read partial merge result from .git/NOTES_MERGE_PARTIAL,
 
 718          * and target notes ref from .git/NOTES_MERGE_REF.
 
 721         if (get_oid("NOTES_MERGE_PARTIAL", &oid))
 
 722                 die(_("failed to read ref NOTES_MERGE_PARTIAL"));
 
 723         else if (!(partial = lookup_commit_reference(the_repository, &oid)))
 
 724                 die(_("could not find commit from NOTES_MERGE_PARTIAL."));
 
 725         else if (parse_commit(partial))
 
 726                 die(_("could not parse commit from NOTES_MERGE_PARTIAL."));
 
 728         if (partial->parents)
 
 729                 oidcpy(&parent_oid, &partial->parents->item->object.oid);
 
 733         t = xcalloc(1, sizeof(struct notes_tree));
 
 734         init_notes(t, "NOTES_MERGE_PARTIAL", combine_notes_overwrite, 0);
 
 736         o->local_ref = local_ref_to_free =
 
 737                 resolve_refdup("NOTES_MERGE_REF", 0, &oid, NULL);
 
 739                 die(_("failed to resolve NOTES_MERGE_REF"));
 
 741         if (notes_merge_commit(o, t, partial, &oid))
 
 742                 die(_("failed to finalize notes merge"));
 
 744         /* Reuse existing commit message in reflog message */
 
 745         memset(&pretty_ctx, 0, sizeof(pretty_ctx));
 
 746         format_commit_message(partial, "%s", &msg, &pretty_ctx);
 
 748         strbuf_insertstr(&msg, 0, "notes: ");
 
 749         update_ref(msg.buf, o->local_ref, &oid,
 
 750                    is_null_oid(&parent_oid) ? NULL : &parent_oid,
 
 751                    0, UPDATE_REFS_DIE_ON_ERR);
 
 754         strbuf_release(&msg);
 
 755         ret = merge_abort(o);
 
 756         free(local_ref_to_free);
 
 760 static int git_config_get_notes_strategy(const char *key,
 
 761                                          enum notes_merge_strategy *strategy)
 
 765         if (git_config_get_string(key, &value))
 
 767         if (parse_notes_merge_strategy(value, strategy))
 
 768                 git_die_config(key, _("unknown notes merge strategy %s"), value);
 
 774 static int merge(int argc, const char **argv, const char *prefix)
 
 776         struct strbuf remote_ref = STRBUF_INIT, msg = STRBUF_INIT;
 
 777         struct object_id result_oid;
 
 778         struct notes_tree *t;
 
 779         struct notes_merge_options o;
 
 780         int do_merge = 0, do_commit = 0, do_abort = 0;
 
 781         int verbosity = 0, result;
 
 782         const char *strategy = NULL;
 
 783         struct option options[] = {
 
 784                 OPT_GROUP(N_("General options")),
 
 785                 OPT__VERBOSITY(&verbosity),
 
 786                 OPT_GROUP(N_("Merge options")),
 
 787                 OPT_STRING('s', "strategy", &strategy, N_("strategy"),
 
 788                            N_("resolve notes conflicts using the given strategy "
 
 789                               "(manual/ours/theirs/union/cat_sort_uniq)")),
 
 790                 OPT_GROUP(N_("Committing unmerged notes")),
 
 791                 OPT_SET_INT_F(0, "commit", &do_commit,
 
 792                               N_("finalize notes merge by committing unmerged notes"),
 
 794                 OPT_GROUP(N_("Aborting notes merge resolution")),
 
 795                 OPT_SET_INT_F(0, "abort", &do_abort,
 
 796                               N_("abort notes merge"),
 
 801         argc = parse_options(argc, argv, prefix, options,
 
 802                              git_notes_merge_usage, 0);
 
 804         if (strategy || do_commit + do_abort == 0)
 
 806         if (do_merge + do_commit + do_abort != 1) {
 
 807                 error(_("cannot mix --commit, --abort or -s/--strategy"));
 
 808                 usage_with_options(git_notes_merge_usage, options);
 
 811         if (do_merge && argc != 1) {
 
 812                 error(_("must specify a notes ref to merge"));
 
 813                 usage_with_options(git_notes_merge_usage, options);
 
 814         } else if (!do_merge && argc) {
 
 815                 error(_("too many parameters"));
 
 816                 usage_with_options(git_notes_merge_usage, options);
 
 819         init_notes_merge_options(the_repository, &o);
 
 820         o.verbosity = verbosity + NOTES_MERGE_VERBOSITY_DEFAULT;
 
 823                 return merge_abort(&o);
 
 825                 return merge_commit(&o);
 
 827         o.local_ref = default_notes_ref();
 
 828         strbuf_addstr(&remote_ref, argv[0]);
 
 829         expand_loose_notes_ref(&remote_ref);
 
 830         o.remote_ref = remote_ref.buf;
 
 832         t = init_notes_check("merge", NOTES_INIT_WRITABLE);
 
 835                 if (parse_notes_merge_strategy(strategy, &o.strategy)) {
 
 836                         error(_("unknown -s/--strategy: %s"), strategy);
 
 837                         usage_with_options(git_notes_merge_usage, options);
 
 840                 struct strbuf merge_key = STRBUF_INIT;
 
 841                 const char *short_ref = NULL;
 
 843                 if (!skip_prefix(o.local_ref, "refs/notes/", &short_ref))
 
 844                         BUG("local ref %s is outside of refs/notes/",
 
 847                 strbuf_addf(&merge_key, "notes.%s.mergeStrategy", short_ref);
 
 849                 if (git_config_get_notes_strategy(merge_key.buf, &o.strategy))
 
 850                         git_config_get_notes_strategy("notes.mergeStrategy", &o.strategy);
 
 852                 strbuf_release(&merge_key);
 
 855         strbuf_addf(&msg, "notes: Merged notes from %s into %s",
 
 856                     remote_ref.buf, default_notes_ref());
 
 857         strbuf_add(&(o.commit_msg), msg.buf + 7, msg.len - 7); /* skip "notes: " */
 
 859         result = notes_merge(&o, t, &result_oid);
 
 861         if (result >= 0) /* Merge resulted (trivially) in result_oid */
 
 862                 /* Update default notes ref with new commit */
 
 863                 update_ref(msg.buf, default_notes_ref(), &result_oid, NULL, 0,
 
 864                            UPDATE_REFS_DIE_ON_ERR);
 
 865         else { /* Merge has unresolved conflicts */
 
 866                 const struct worktree *wt;
 
 867                 /* Update .git/NOTES_MERGE_PARTIAL with partial merge result */
 
 868                 update_ref(msg.buf, "NOTES_MERGE_PARTIAL", &result_oid, NULL,
 
 869                            0, UPDATE_REFS_DIE_ON_ERR);
 
 870                 /* Store ref-to-be-updated into .git/NOTES_MERGE_REF */
 
 871                 wt = find_shared_symref("NOTES_MERGE_REF", default_notes_ref());
 
 873                         die(_("a notes merge into %s is already in-progress at %s"),
 
 874                             default_notes_ref(), wt->path);
 
 875                 if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL))
 
 876                         die(_("failed to store link to current notes ref (%s)"),
 
 877                             default_notes_ref());
 
 878                 fprintf(stderr, _("Automatic notes merge failed. Fix conflicts in %s "
 
 879                                   "and commit the result with 'git notes merge --commit', "
 
 880                                   "or abort the merge with 'git notes merge --abort'.\n"),
 
 881                         git_path(NOTES_MERGE_WORKTREE));
 
 885         strbuf_release(&remote_ref);
 
 886         strbuf_release(&msg);
 
 887         return result < 0; /* return non-zero on conflicts */
 
 890 #define IGNORE_MISSING 1
 
 892 static int remove_one_note(struct notes_tree *t, const char *name, unsigned flag)
 
 895         struct object_id oid;
 
 896         if (get_oid(name, &oid))
 
 897                 return error(_("Failed to resolve '%s' as a valid ref."), name);
 
 898         status = remove_note(t, oid.hash);
 
 900                 fprintf(stderr, _("Object %s has no note\n"), name);
 
 902                 fprintf(stderr, _("Removing note for object %s\n"), name);
 
 903         return (flag & IGNORE_MISSING) ? 0 : status;
 
 906 static int remove_cmd(int argc, const char **argv, const char *prefix)
 
 910         struct option options[] = {
 
 911                 OPT_BIT(0, "ignore-missing", &flag,
 
 912                         N_("attempt to remove non-existent note is not an error"),
 
 914                 OPT_BOOL(0, "stdin", &from_stdin,
 
 915                             N_("read object names from the standard input")),
 
 918         struct notes_tree *t;
 
 921         argc = parse_options(argc, argv, prefix, options,
 
 922                              git_notes_remove_usage, 0);
 
 924         t = init_notes_check("remove", NOTES_INIT_WRITABLE);
 
 926         if (!argc && !from_stdin) {
 
 927                 retval = remove_one_note(t, "HEAD", flag);
 
 930                         retval |= remove_one_note(t, *argv, flag);
 
 935                 struct strbuf sb = STRBUF_INIT;
 
 936                 while (strbuf_getwholeline(&sb, stdin, '\n') != EOF) {
 
 938                         retval |= remove_one_note(t, sb.buf, flag);
 
 943                 commit_notes(the_repository, t,
 
 944                              "Notes removed by 'git notes remove'");
 
 949 static int prune(int argc, const char **argv, const char *prefix)
 
 951         struct notes_tree *t;
 
 952         int show_only = 0, verbose = 0;
 
 953         struct option options[] = {
 
 954                 OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
 
 955                 OPT__VERBOSE(&verbose, N_("report pruned notes")),
 
 959         argc = parse_options(argc, argv, prefix, options, git_notes_prune_usage,
 
 963                 error(_("too many parameters"));
 
 964                 usage_with_options(git_notes_prune_usage, options);
 
 967         t = init_notes_check("prune", NOTES_INIT_WRITABLE);
 
 969         prune_notes(t, (verbose ? NOTES_PRUNE_VERBOSE : 0) |
 
 970                 (show_only ? NOTES_PRUNE_VERBOSE|NOTES_PRUNE_DRYRUN : 0) );
 
 972                 commit_notes(the_repository, t,
 
 973                              "Notes removed by 'git notes prune'");
 
 978 static int get_ref(int argc, const char **argv, const char *prefix)
 
 980         struct option options[] = { OPT_END() };
 
 981         argc = parse_options(argc, argv, prefix, options,
 
 982                              git_notes_get_ref_usage, 0);
 
 985                 error(_("too many parameters"));
 
 986                 usage_with_options(git_notes_get_ref_usage, options);
 
 989         puts(default_notes_ref());
 
 993 int cmd_notes(int argc, const char **argv, const char *prefix)
 
 996         const char *override_notes_ref = NULL;
 
 997         struct option options[] = {
 
 998                 OPT_STRING(0, "ref", &override_notes_ref, N_("notes-ref"),
 
 999                            N_("use notes from <notes-ref>")),
 
1003         git_config(git_default_config, NULL);
 
1004         argc = parse_options(argc, argv, prefix, options, git_notes_usage,
 
1005                              PARSE_OPT_STOP_AT_NON_OPTION);
 
1007         if (override_notes_ref) {
 
1008                 struct strbuf sb = STRBUF_INIT;
 
1009                 strbuf_addstr(&sb, override_notes_ref);
 
1010                 expand_notes_ref(&sb);
 
1011                 setenv("GIT_NOTES_REF", sb.buf, 1);
 
1012                 strbuf_release(&sb);
 
1015         if (argc < 1 || !strcmp(argv[0], "list"))
 
1016                 result = list(argc, argv, prefix);
 
1017         else if (!strcmp(argv[0], "add"))
 
1018                 result = add(argc, argv, prefix);
 
1019         else if (!strcmp(argv[0], "copy"))
 
1020                 result = copy(argc, argv, prefix);
 
1021         else if (!strcmp(argv[0], "append") || !strcmp(argv[0], "edit"))
 
1022                 result = append_edit(argc, argv, prefix);
 
1023         else if (!strcmp(argv[0], "show"))
 
1024                 result = show(argc, argv, prefix);
 
1025         else if (!strcmp(argv[0], "merge"))
 
1026                 result = merge(argc, argv, prefix);
 
1027         else if (!strcmp(argv[0], "remove"))
 
1028                 result = remove_cmd(argc, argv, prefix);
 
1029         else if (!strcmp(argv[0], "prune"))
 
1030                 result = prune(argc, argv, prefix);
 
1031         else if (!strcmp(argv[0], "get-ref"))
 
1032                 result = get_ref(argc, argv, prefix);
 
1034                 result = error(_("unknown subcommand: %s"), argv[0]);
 
1035                 usage_with_options(git_notes_usage, options);
 
1038         return result ? 1 : 0;