Code

remove doubled words, e.g., s/to to/to/, and fix related typos
[git.git] / builtin / notes.c
1 /*
2  * Builtin "git notes"
3  *
4  * Copyright (c) 2010 Johan Herland <johan@herland.net>
5  *
6  * Based on git-notes.sh by Johannes Schindelin,
7  * and builtin-tag.c by Kristian Høgsberg and Carlos Rica.
8  */
10 #include "cache.h"
11 #include "builtin.h"
12 #include "notes.h"
13 #include "blob.h"
14 #include "commit.h"
15 #include "refs.h"
16 #include "exec_cmd.h"
17 #include "run-command.h"
18 #include "parse-options.h"
19 #include "string-list.h"
20 #include "notes-merge.h"
22 static const char * const git_notes_usage[] = {
23         "git notes [--ref <notes_ref>] [list [<object>]]",
24         "git notes [--ref <notes_ref>] add [-f] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]",
25         "git notes [--ref <notes_ref>] copy [-f] <from-object> <to-object>",
26         "git notes [--ref <notes_ref>] append [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]",
27         "git notes [--ref <notes_ref>] edit [<object>]",
28         "git notes [--ref <notes_ref>] show [<object>]",
29         "git notes [--ref <notes_ref>] merge [-v | -q] [-s <strategy> ] <notes_ref>",
30         "git notes merge --commit [-v | -q]",
31         "git notes merge --abort [-v | -q]",
32         "git notes [--ref <notes_ref>] remove [<object>]",
33         "git notes [--ref <notes_ref>] prune [-n | -v]",
34         "git notes [--ref <notes_ref>] get-ref",
35         NULL
36 };
38 static const char * const git_notes_list_usage[] = {
39         "git notes [list [<object>]]",
40         NULL
41 };
43 static const char * const git_notes_add_usage[] = {
44         "git notes add [<options>] [<object>]",
45         NULL
46 };
48 static const char * const git_notes_copy_usage[] = {
49         "git notes copy [<options>] <from-object> <to-object>",
50         "git notes copy --stdin [<from-object> <to-object>]...",
51         NULL
52 };
54 static const char * const git_notes_append_usage[] = {
55         "git notes append [<options>] [<object>]",
56         NULL
57 };
59 static const char * const git_notes_edit_usage[] = {
60         "git notes edit [<object>]",
61         NULL
62 };
64 static const char * const git_notes_show_usage[] = {
65         "git notes show [<object>]",
66         NULL
67 };
69 static const char * const git_notes_merge_usage[] = {
70         "git notes merge [<options>] <notes_ref>",
71         "git notes merge --commit [<options>]",
72         "git notes merge --abort [<options>]",
73         NULL
74 };
76 static const char * const git_notes_remove_usage[] = {
77         "git notes remove [<object>]",
78         NULL
79 };
81 static const char * const git_notes_prune_usage[] = {
82         "git notes prune [<options>]",
83         NULL
84 };
86 static const char * const git_notes_get_ref_usage[] = {
87         "git notes get-ref",
88         NULL
89 };
91 static const char note_template[] =
92         "\n"
93         "#\n"
94         "# Write/edit the notes for the following object:\n"
95         "#\n";
97 struct msg_arg {
98         int given;
99         int use_editor;
100         struct strbuf buf;
101 };
103 static void expand_notes_ref(struct strbuf *sb)
105         if (!prefixcmp(sb->buf, "refs/notes/"))
106                 return; /* we're happy */
107         else if (!prefixcmp(sb->buf, "notes/"))
108                 strbuf_insert(sb, 0, "refs/", 5);
109         else
110                 strbuf_insert(sb, 0, "refs/notes/", 11);
113 static int list_each_note(const unsigned char *object_sha1,
114                 const unsigned char *note_sha1, char *note_path,
115                 void *cb_data)
117         printf("%s %s\n", sha1_to_hex(note_sha1), sha1_to_hex(object_sha1));
118         return 0;
121 static void write_note_data(int fd, const unsigned char *sha1)
123         unsigned long size;
124         enum object_type type;
125         char *buf = read_sha1_file(sha1, &type, &size);
126         if (buf) {
127                 if (size)
128                         write_or_die(fd, buf, size);
129                 free(buf);
130         }
133 static void write_commented_object(int fd, const unsigned char *object)
135         const char *show_args[5] =
136                 {"show", "--stat", "--no-notes", sha1_to_hex(object), NULL};
137         struct child_process show;
138         struct strbuf buf = STRBUF_INIT;
139         FILE *show_out;
141         /* Invoke "git show --stat --no-notes $object" */
142         memset(&show, 0, sizeof(show));
143         show.argv = show_args;
144         show.no_stdin = 1;
145         show.out = -1;
146         show.err = 0;
147         show.git_cmd = 1;
148         if (start_command(&show))
149                 die(_("unable to start 'show' for object '%s'"),
150                     sha1_to_hex(object));
152         /* Open the output as FILE* so strbuf_getline() can be used. */
153         show_out = xfdopen(show.out, "r");
154         if (show_out == NULL)
155                 die_errno(_("can't fdopen 'show' output fd"));
157         /* Prepend "# " to each output line and write result to 'fd' */
158         while (strbuf_getline(&buf, show_out, '\n') != EOF) {
159                 write_or_die(fd, "# ", 2);
160                 write_or_die(fd, buf.buf, buf.len);
161                 write_or_die(fd, "\n", 1);
162         }
163         strbuf_release(&buf);
164         if (fclose(show_out))
165                 die_errno(_("failed to close pipe to 'show' for object '%s'"),
166                           sha1_to_hex(object));
167         if (finish_command(&show))
168                 die(_("failed to finish 'show' for object '%s'"),
169                     sha1_to_hex(object));
172 static void create_note(const unsigned char *object, struct msg_arg *msg,
173                         int append_only, const unsigned char *prev,
174                         unsigned char *result)
176         char *path = NULL;
178         if (msg->use_editor || !msg->given) {
179                 int fd;
181                 /* write the template message before editing: */
182                 path = git_pathdup("NOTES_EDITMSG");
183                 fd = open(path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
184                 if (fd < 0)
185                         die_errno(_("could not create file '%s'"), path);
187                 if (msg->given)
188                         write_or_die(fd, msg->buf.buf, msg->buf.len);
189                 else if (prev && !append_only)
190                         write_note_data(fd, prev);
191                 write_or_die(fd, note_template, strlen(note_template));
193                 write_commented_object(fd, object);
195                 close(fd);
196                 strbuf_reset(&(msg->buf));
198                 if (launch_editor(path, &(msg->buf), NULL)) {
199                         die(_("Please supply the note contents using either -m" \
200                             " or -F option"));
201                 }
202                 stripspace(&(msg->buf), 1);
203         }
205         if (prev && append_only) {
206                 /* Append buf to previous note contents */
207                 unsigned long size;
208                 enum object_type type;
209                 char *prev_buf = read_sha1_file(prev, &type, &size);
211                 strbuf_grow(&(msg->buf), size + 1);
212                 if (msg->buf.len && prev_buf && size)
213                         strbuf_insert(&(msg->buf), 0, "\n", 1);
214                 if (prev_buf && size)
215                         strbuf_insert(&(msg->buf), 0, prev_buf, size);
216                 free(prev_buf);
217         }
219         if (!msg->buf.len) {
220                 fprintf(stderr, _("Removing note for object %s\n"),
221                         sha1_to_hex(object));
222                 hashclr(result);
223         } else {
224                 if (write_sha1_file(msg->buf.buf, msg->buf.len, blob_type, result)) {
225                         error(_("unable to write note object"));
226                         if (path)
227                                 error(_("The note contents has been left in %s"),
228                                       path);
229                         exit(128);
230                 }
231         }
233         if (path) {
234                 unlink_or_warn(path);
235                 free(path);
236         }
239 static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
241         struct msg_arg *msg = opt->value;
243         strbuf_grow(&(msg->buf), strlen(arg) + 2);
244         if (msg->buf.len)
245                 strbuf_addch(&(msg->buf), '\n');
246         strbuf_addstr(&(msg->buf), arg);
247         stripspace(&(msg->buf), 0);
249         msg->given = 1;
250         return 0;
253 static int parse_file_arg(const struct option *opt, const char *arg, int unset)
255         struct msg_arg *msg = opt->value;
257         if (msg->buf.len)
258                 strbuf_addch(&(msg->buf), '\n');
259         if (!strcmp(arg, "-")) {
260                 if (strbuf_read(&(msg->buf), 0, 1024) < 0)
261                         die_errno(_("cannot read '%s'"), arg);
262         } else if (strbuf_read_file(&(msg->buf), arg, 1024) < 0)
263                 die_errno(_("could not open or read '%s'"), arg);
264         stripspace(&(msg->buf), 0);
266         msg->given = 1;
267         return 0;
270 static int parse_reuse_arg(const struct option *opt, const char *arg, int unset)
272         struct msg_arg *msg = opt->value;
273         char *buf;
274         unsigned char object[20];
275         enum object_type type;
276         unsigned long len;
278         if (msg->buf.len)
279                 strbuf_addch(&(msg->buf), '\n');
281         if (get_sha1(arg, object))
282                 die(_("Failed to resolve '%s' as a valid ref."), arg);
283         if (!(buf = read_sha1_file(object, &type, &len)) || !len) {
284                 free(buf);
285                 die(_("Failed to read object '%s'."), arg);;
286         }
287         strbuf_add(&(msg->buf), buf, len);
288         free(buf);
290         msg->given = 1;
291         return 0;
294 static int parse_reedit_arg(const struct option *opt, const char *arg, int unset)
296         struct msg_arg *msg = opt->value;
297         msg->use_editor = 1;
298         return parse_reuse_arg(opt, arg, unset);
301 void commit_notes(struct notes_tree *t, const char *msg)
303         struct strbuf buf = STRBUF_INIT;
304         unsigned char commit_sha1[20];
306         if (!t)
307                 t = &default_notes_tree;
308         if (!t->initialized || !t->ref || !*t->ref)
309                 die(_("Cannot commit uninitialized/unreferenced notes tree"));
310         if (!t->dirty)
311                 return; /* don't have to commit an unchanged tree */
313         /* Prepare commit message and reflog message */
314         strbuf_addstr(&buf, "notes: "); /* commit message starts at index 7 */
315         strbuf_addstr(&buf, msg);
316         if (buf.buf[buf.len - 1] != '\n')
317                 strbuf_addch(&buf, '\n'); /* Make sure msg ends with newline */
319         create_notes_commit(t, NULL, buf.buf + 7, commit_sha1);
320         update_ref(buf.buf, t->ref, commit_sha1, NULL, 0, DIE_ON_ERR);
322         strbuf_release(&buf);
325 combine_notes_fn parse_combine_notes_fn(const char *v)
327         if (!strcasecmp(v, "overwrite"))
328                 return combine_notes_overwrite;
329         else if (!strcasecmp(v, "ignore"))
330                 return combine_notes_ignore;
331         else if (!strcasecmp(v, "concatenate"))
332                 return combine_notes_concatenate;
333         else if (!strcasecmp(v, "cat_sort_uniq"))
334                 return combine_notes_cat_sort_uniq;
335         else
336                 return NULL;
339 static int notes_rewrite_config(const char *k, const char *v, void *cb)
341         struct notes_rewrite_cfg *c = cb;
342         if (!prefixcmp(k, "notes.rewrite.") && !strcmp(k+14, c->cmd)) {
343                 c->enabled = git_config_bool(k, v);
344                 return 0;
345         } else if (!c->mode_from_env && !strcmp(k, "notes.rewritemode")) {
346                 if (!v)
347                         config_error_nonbool(k);
348                 c->combine = parse_combine_notes_fn(v);
349                 if (!c->combine) {
350                         error(_("Bad notes.rewriteMode value: '%s'"), v);
351                         return 1;
352                 }
353                 return 0;
354         } else if (!c->refs_from_env && !strcmp(k, "notes.rewriteref")) {
355                 /* note that a refs/ prefix is implied in the
356                  * underlying for_each_glob_ref */
357                 if (!prefixcmp(v, "refs/notes/"))
358                         string_list_add_refs_by_glob(c->refs, v);
359                 else
360                         warning(_("Refusing to rewrite notes in %s"
361                                 " (outside of refs/notes/)"), v);
362                 return 0;
363         }
365         return 0;
369 struct notes_rewrite_cfg *init_copy_notes_for_rewrite(const char *cmd)
371         struct notes_rewrite_cfg *c = xmalloc(sizeof(struct notes_rewrite_cfg));
372         const char *rewrite_mode_env = getenv(GIT_NOTES_REWRITE_MODE_ENVIRONMENT);
373         const char *rewrite_refs_env = getenv(GIT_NOTES_REWRITE_REF_ENVIRONMENT);
374         c->cmd = cmd;
375         c->enabled = 1;
376         c->combine = combine_notes_concatenate;
377         c->refs = xcalloc(1, sizeof(struct string_list));
378         c->refs->strdup_strings = 1;
379         c->refs_from_env = 0;
380         c->mode_from_env = 0;
381         if (rewrite_mode_env) {
382                 c->mode_from_env = 1;
383                 c->combine = parse_combine_notes_fn(rewrite_mode_env);
384                 if (!c->combine)
385                         /* TRANSLATORS: The first %s is the name of the
386                            environment variable, the second %s is its value */
387                         error(_("Bad %s value: '%s'"), GIT_NOTES_REWRITE_MODE_ENVIRONMENT,
388                                         rewrite_mode_env);
389         }
390         if (rewrite_refs_env) {
391                 c->refs_from_env = 1;
392                 string_list_add_refs_from_colon_sep(c->refs, rewrite_refs_env);
393         }
394         git_config(notes_rewrite_config, c);
395         if (!c->enabled || !c->refs->nr) {
396                 string_list_clear(c->refs, 0);
397                 free(c->refs);
398                 free(c);
399                 return NULL;
400         }
401         c->trees = load_notes_trees(c->refs);
402         string_list_clear(c->refs, 0);
403         free(c->refs);
404         return c;
407 int copy_note_for_rewrite(struct notes_rewrite_cfg *c,
408                           const unsigned char *from_obj, const unsigned char *to_obj)
410         int ret = 0;
411         int i;
412         for (i = 0; c->trees[i]; i++)
413                 ret = copy_note(c->trees[i], from_obj, to_obj, 1, c->combine) || ret;
414         return ret;
417 void finish_copy_notes_for_rewrite(struct notes_rewrite_cfg *c)
419         int i;
420         for (i = 0; c->trees[i]; i++) {
421                 commit_notes(c->trees[i], "Notes added by 'git notes copy'");
422                 free_notes(c->trees[i]);
423         }
424         free(c->trees);
425         free(c);
428 static int notes_copy_from_stdin(int force, const char *rewrite_cmd)
430         struct strbuf buf = STRBUF_INIT;
431         struct notes_rewrite_cfg *c = NULL;
432         struct notes_tree *t = NULL;
433         int ret = 0;
435         if (rewrite_cmd) {
436                 c = init_copy_notes_for_rewrite(rewrite_cmd);
437                 if (!c)
438                         return 0;
439         } else {
440                 init_notes(NULL, NULL, NULL, 0);
441                 t = &default_notes_tree;
442         }
444         while (strbuf_getline(&buf, stdin, '\n') != EOF) {
445                 unsigned char from_obj[20], to_obj[20];
446                 struct strbuf **split;
447                 int err;
449                 split = strbuf_split(&buf, ' ');
450                 if (!split[0] || !split[1])
451                         die(_("Malformed input line: '%s'."), buf.buf);
452                 strbuf_rtrim(split[0]);
453                 strbuf_rtrim(split[1]);
454                 if (get_sha1(split[0]->buf, from_obj))
455                         die(_("Failed to resolve '%s' as a valid ref."), split[0]->buf);
456                 if (get_sha1(split[1]->buf, to_obj))
457                         die(_("Failed to resolve '%s' as a valid ref."), split[1]->buf);
459                 if (rewrite_cmd)
460                         err = copy_note_for_rewrite(c, from_obj, to_obj);
461                 else
462                         err = copy_note(t, from_obj, to_obj, force,
463                                         combine_notes_overwrite);
465                 if (err) {
466                         error(_("Failed to copy notes from '%s' to '%s'"),
467                               split[0]->buf, split[1]->buf);
468                         ret = 1;
469                 }
471                 strbuf_list_free(split);
472         }
474         if (!rewrite_cmd) {
475                 commit_notes(t, "Notes added by 'git notes copy'");
476                 free_notes(t);
477         } else {
478                 finish_copy_notes_for_rewrite(c);
479         }
480         return ret;
483 static struct notes_tree *init_notes_check(const char *subcommand)
485         struct notes_tree *t;
486         init_notes(NULL, NULL, NULL, 0);
487         t = &default_notes_tree;
489         if (prefixcmp(t->ref, "refs/notes/"))
490                 die("Refusing to %s notes in %s (outside of refs/notes/)",
491                     subcommand, t->ref);
492         return t;
495 static int list(int argc, const char **argv, const char *prefix)
497         struct notes_tree *t;
498         unsigned char object[20];
499         const unsigned char *note;
500         int retval = -1;
501         struct option options[] = {
502                 OPT_END()
503         };
505         if (argc)
506                 argc = parse_options(argc, argv, prefix, options,
507                                      git_notes_list_usage, 0);
509         if (1 < argc) {
510                 error(_("too many parameters"));
511                 usage_with_options(git_notes_list_usage, options);
512         }
514         t = init_notes_check("list");
515         if (argc) {
516                 if (get_sha1(argv[0], object))
517                         die(_("Failed to resolve '%s' as a valid ref."), argv[0]);
518                 note = get_note(t, object);
519                 if (note) {
520                         puts(sha1_to_hex(note));
521                         retval = 0;
522                 } else
523                         retval = error(_("No note found for object %s."),
524                                        sha1_to_hex(object));
525         } else
526                 retval = for_each_note(t, 0, list_each_note, NULL);
528         free_notes(t);
529         return retval;
532 static int add(int argc, const char **argv, const char *prefix)
534         int retval = 0, force = 0;
535         const char *object_ref;
536         struct notes_tree *t;
537         unsigned char object[20], new_note[20];
538         char logmsg[100];
539         const unsigned char *note;
540         struct msg_arg msg = { 0, 0, STRBUF_INIT };
541         struct option options[] = {
542                 { OPTION_CALLBACK, 'm', "message", &msg, "msg",
543                         "note contents as a string", PARSE_OPT_NONEG,
544                         parse_msg_arg},
545                 { OPTION_CALLBACK, 'F', "file", &msg, "file",
546                         "note contents in a file", PARSE_OPT_NONEG,
547                         parse_file_arg},
548                 { OPTION_CALLBACK, 'c', "reedit-message", &msg, "object",
549                         "reuse and edit specified note object", PARSE_OPT_NONEG,
550                         parse_reedit_arg},
551                 { OPTION_CALLBACK, 'C', "reuse-message", &msg, "object",
552                         "reuse specified note object", PARSE_OPT_NONEG,
553                         parse_reuse_arg},
554                 OPT__FORCE(&force, "replace existing notes"),
555                 OPT_END()
556         };
558         argc = parse_options(argc, argv, prefix, options, git_notes_add_usage,
559                              0);
561         if (1 < argc) {
562                 error(_("too many parameters"));
563                 usage_with_options(git_notes_add_usage, options);
564         }
566         object_ref = argc ? argv[0] : "HEAD";
568         if (get_sha1(object_ref, object))
569                 die(_("Failed to resolve '%s' as a valid ref."), object_ref);
571         t = init_notes_check("add");
572         note = get_note(t, object);
574         if (note) {
575                 if (!force) {
576                         retval = error(_("Cannot add notes. Found existing notes "
577                                        "for object %s. Use '-f' to overwrite "
578                                        "existing notes"), sha1_to_hex(object));
579                         goto out;
580                 }
581                 fprintf(stderr, _("Overwriting existing notes for object %s\n"),
582                         sha1_to_hex(object));
583         }
585         create_note(object, &msg, 0, note, new_note);
587         if (is_null_sha1(new_note))
588                 remove_note(t, object);
589         else if (add_note(t, object, new_note, combine_notes_overwrite))
590                 die("BUG: combine_notes_overwrite failed");
592         snprintf(logmsg, sizeof(logmsg), "Notes %s by 'git notes %s'",
593                  is_null_sha1(new_note) ? "removed" : "added", "add");
594         commit_notes(t, logmsg);
595 out:
596         free_notes(t);
597         strbuf_release(&(msg.buf));
598         return retval;
601 static int copy(int argc, const char **argv, const char *prefix)
603         int retval = 0, force = 0, from_stdin = 0;
604         const unsigned char *from_note, *note;
605         const char *object_ref;
606         unsigned char object[20], from_obj[20];
607         struct notes_tree *t;
608         const char *rewrite_cmd = NULL;
609         struct option options[] = {
610                 OPT__FORCE(&force, "replace existing notes"),
611                 OPT_BOOLEAN(0, "stdin", &from_stdin, "read objects from stdin"),
612                 OPT_STRING(0, "for-rewrite", &rewrite_cmd, "command",
613                            "load rewriting config for <command> (implies "
614                            "--stdin)"),
615                 OPT_END()
616         };
618         argc = parse_options(argc, argv, prefix, options, git_notes_copy_usage,
619                              0);
621         if (from_stdin || rewrite_cmd) {
622                 if (argc) {
623                         error(_("too many parameters"));
624                         usage_with_options(git_notes_copy_usage, options);
625                 } else {
626                         return notes_copy_from_stdin(force, rewrite_cmd);
627                 }
628         }
630         if (argc < 2) {
631                 error(_("too few parameters"));
632                 usage_with_options(git_notes_copy_usage, options);
633         }
634         if (2 < argc) {
635                 error(_("too many parameters"));
636                 usage_with_options(git_notes_copy_usage, options);
637         }
639         if (get_sha1(argv[0], from_obj))
640                 die(_("Failed to resolve '%s' as a valid ref."), argv[0]);
642         object_ref = 1 < argc ? argv[1] : "HEAD";
644         if (get_sha1(object_ref, object))
645                 die(_("Failed to resolve '%s' as a valid ref."), object_ref);
647         t = init_notes_check("copy");
648         note = get_note(t, object);
650         if (note) {
651                 if (!force) {
652                         retval = error(_("Cannot copy notes. Found existing "
653                                        "notes for object %s. Use '-f' to "
654                                        "overwrite existing notes"),
655                                        sha1_to_hex(object));
656                         goto out;
657                 }
658                 fprintf(stderr, _("Overwriting existing notes for object %s\n"),
659                         sha1_to_hex(object));
660         }
662         from_note = get_note(t, from_obj);
663         if (!from_note) {
664                 retval = error(_("Missing notes on source object %s. Cannot "
665                                "copy."), sha1_to_hex(from_obj));
666                 goto out;
667         }
669         if (add_note(t, object, from_note, combine_notes_overwrite))
670                 die("BUG: combine_notes_overwrite failed");
671         commit_notes(t, "Notes added by 'git notes copy'");
672 out:
673         free_notes(t);
674         return retval;
677 static int append_edit(int argc, const char **argv, const char *prefix)
679         const char *object_ref;
680         struct notes_tree *t;
681         unsigned char object[20], new_note[20];
682         const unsigned char *note;
683         char logmsg[100];
684         const char * const *usage;
685         struct msg_arg msg = { 0, 0, STRBUF_INIT };
686         struct option options[] = {
687                 { OPTION_CALLBACK, 'm', "message", &msg, "msg",
688                         "note contents as a string", PARSE_OPT_NONEG,
689                         parse_msg_arg},
690                 { OPTION_CALLBACK, 'F', "file", &msg, "file",
691                         "note contents in a file", PARSE_OPT_NONEG,
692                         parse_file_arg},
693                 { OPTION_CALLBACK, 'c', "reedit-message", &msg, "object",
694                         "reuse and edit specified note object", PARSE_OPT_NONEG,
695                         parse_reedit_arg},
696                 { OPTION_CALLBACK, 'C', "reuse-message", &msg, "object",
697                         "reuse specified note object", PARSE_OPT_NONEG,
698                         parse_reuse_arg},
699                 OPT_END()
700         };
701         int edit = !strcmp(argv[0], "edit");
703         usage = edit ? git_notes_edit_usage : git_notes_append_usage;
704         argc = parse_options(argc, argv, prefix, options, usage,
705                              PARSE_OPT_KEEP_ARGV0);
707         if (2 < argc) {
708                 error(_("too many parameters"));
709                 usage_with_options(usage, options);
710         }
712         if (msg.given && edit)
713                 fprintf(stderr, _("The -m/-F/-c/-C options have been deprecated "
714                         "for the 'edit' subcommand.\n"
715                         "Please use 'git notes add -f -m/-F/-c/-C' instead.\n"));
717         object_ref = 1 < argc ? argv[1] : "HEAD";
719         if (get_sha1(object_ref, object))
720                 die(_("Failed to resolve '%s' as a valid ref."), object_ref);
722         t = init_notes_check(argv[0]);
723         note = get_note(t, object);
725         create_note(object, &msg, !edit, note, new_note);
727         if (is_null_sha1(new_note))
728                 remove_note(t, object);
729         else if (add_note(t, object, new_note, combine_notes_overwrite))
730                 die("BUG: combine_notes_overwrite failed");
732         snprintf(logmsg, sizeof(logmsg), "Notes %s by 'git notes %s'",
733                  is_null_sha1(new_note) ? "removed" : "added", argv[0]);
734         commit_notes(t, logmsg);
735         free_notes(t);
736         strbuf_release(&(msg.buf));
737         return 0;
740 static int show(int argc, const char **argv, const char *prefix)
742         const char *object_ref;
743         struct notes_tree *t;
744         unsigned char object[20];
745         const unsigned char *note;
746         int retval;
747         struct option options[] = {
748                 OPT_END()
749         };
751         argc = parse_options(argc, argv, prefix, options, git_notes_show_usage,
752                              0);
754         if (1 < argc) {
755                 error(_("too many parameters"));
756                 usage_with_options(git_notes_show_usage, options);
757         }
759         object_ref = argc ? argv[0] : "HEAD";
761         if (get_sha1(object_ref, object))
762                 die(_("Failed to resolve '%s' as a valid ref."), object_ref);
764         t = init_notes_check("show");
765         note = get_note(t, object);
767         if (!note)
768                 retval = error(_("No note found for object %s."),
769                                sha1_to_hex(object));
770         else {
771                 const char *show_args[3] = {"show", sha1_to_hex(note), NULL};
772                 retval = execv_git_cmd(show_args);
773         }
774         free_notes(t);
775         return retval;
778 static int merge_abort(struct notes_merge_options *o)
780         int ret = 0;
782         /*
783          * Remove .git/NOTES_MERGE_PARTIAL and .git/NOTES_MERGE_REF, and call
784          * notes_merge_abort() to remove .git/NOTES_MERGE_WORKTREE.
785          */
787         if (delete_ref("NOTES_MERGE_PARTIAL", NULL, 0))
788                 ret += error("Failed to delete ref NOTES_MERGE_PARTIAL");
789         if (delete_ref("NOTES_MERGE_REF", NULL, REF_NODEREF))
790                 ret += error("Failed to delete ref NOTES_MERGE_REF");
791         if (notes_merge_abort(o))
792                 ret += error("Failed to remove 'git notes merge' worktree");
793         return ret;
796 static int merge_commit(struct notes_merge_options *o)
798         struct strbuf msg = STRBUF_INIT;
799         unsigned char sha1[20], parent_sha1[20];
800         struct notes_tree *t;
801         struct commit *partial;
802         struct pretty_print_context pretty_ctx;
804         /*
805          * Read partial merge result from .git/NOTES_MERGE_PARTIAL,
806          * and target notes ref from .git/NOTES_MERGE_REF.
807          */
809         if (get_sha1("NOTES_MERGE_PARTIAL", sha1))
810                 die("Failed to read ref NOTES_MERGE_PARTIAL");
811         else if (!(partial = lookup_commit_reference(sha1)))
812                 die("Could not find commit from NOTES_MERGE_PARTIAL.");
813         else if (parse_commit(partial))
814                 die("Could not parse commit from NOTES_MERGE_PARTIAL.");
816         if (partial->parents)
817                 hashcpy(parent_sha1, partial->parents->item->object.sha1);
818         else
819                 hashclr(parent_sha1);
821         t = xcalloc(1, sizeof(struct notes_tree));
822         init_notes(t, "NOTES_MERGE_PARTIAL", combine_notes_overwrite, 0);
824         o->local_ref = resolve_ref("NOTES_MERGE_REF", sha1, 0, NULL);
825         if (!o->local_ref)
826                 die("Failed to resolve NOTES_MERGE_REF");
828         if (notes_merge_commit(o, t, partial, sha1))
829                 die("Failed to finalize notes merge");
831         /* Reuse existing commit message in reflog message */
832         memset(&pretty_ctx, 0, sizeof(pretty_ctx));
833         format_commit_message(partial, "%s", &msg, &pretty_ctx);
834         strbuf_trim(&msg);
835         strbuf_insert(&msg, 0, "notes: ", 7);
836         update_ref(msg.buf, o->local_ref, sha1,
837                    is_null_sha1(parent_sha1) ? NULL : parent_sha1,
838                    0, DIE_ON_ERR);
840         free_notes(t);
841         strbuf_release(&msg);
842         return merge_abort(o);
845 static int merge(int argc, const char **argv, const char *prefix)
847         struct strbuf remote_ref = STRBUF_INIT, msg = STRBUF_INIT;
848         unsigned char result_sha1[20];
849         struct notes_tree *t;
850         struct notes_merge_options o;
851         int do_merge = 0, do_commit = 0, do_abort = 0;
852         int verbosity = 0, result;
853         const char *strategy = NULL;
854         struct option options[] = {
855                 OPT_GROUP("General options"),
856                 OPT__VERBOSITY(&verbosity),
857                 OPT_GROUP("Merge options"),
858                 OPT_STRING('s', "strategy", &strategy, "strategy",
859                            "resolve notes conflicts using the given strategy "
860                            "(manual/ours/theirs/union/cat_sort_uniq)"),
861                 OPT_GROUP("Committing unmerged notes"),
862                 { OPTION_BOOLEAN, 0, "commit", &do_commit, NULL,
863                         "finalize notes merge by committing unmerged notes",
864                         PARSE_OPT_NOARG | PARSE_OPT_NONEG },
865                 OPT_GROUP("Aborting notes merge resolution"),
866                 { OPTION_BOOLEAN, 0, "abort", &do_abort, NULL,
867                         "abort notes merge",
868                         PARSE_OPT_NOARG | PARSE_OPT_NONEG },
869                 OPT_END()
870         };
872         argc = parse_options(argc, argv, prefix, options,
873                              git_notes_merge_usage, 0);
875         if (strategy || do_commit + do_abort == 0)
876                 do_merge = 1;
877         if (do_merge + do_commit + do_abort != 1) {
878                 error("cannot mix --commit, --abort or -s/--strategy");
879                 usage_with_options(git_notes_merge_usage, options);
880         }
882         if (do_merge && argc != 1) {
883                 error("Must specify a notes ref to merge");
884                 usage_with_options(git_notes_merge_usage, options);
885         } else if (!do_merge && argc) {
886                 error("too many parameters");
887                 usage_with_options(git_notes_merge_usage, options);
888         }
890         init_notes_merge_options(&o);
891         o.verbosity = verbosity + NOTES_MERGE_VERBOSITY_DEFAULT;
893         if (do_abort)
894                 return merge_abort(&o);
895         if (do_commit)
896                 return merge_commit(&o);
898         o.local_ref = default_notes_ref();
899         strbuf_addstr(&remote_ref, argv[0]);
900         expand_notes_ref(&remote_ref);
901         o.remote_ref = remote_ref.buf;
903         if (strategy) {
904                 if (!strcmp(strategy, "manual"))
905                         o.strategy = NOTES_MERGE_RESOLVE_MANUAL;
906                 else if (!strcmp(strategy, "ours"))
907                         o.strategy = NOTES_MERGE_RESOLVE_OURS;
908                 else if (!strcmp(strategy, "theirs"))
909                         o.strategy = NOTES_MERGE_RESOLVE_THEIRS;
910                 else if (!strcmp(strategy, "union"))
911                         o.strategy = NOTES_MERGE_RESOLVE_UNION;
912                 else if (!strcmp(strategy, "cat_sort_uniq"))
913                         o.strategy = NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ;
914                 else {
915                         error("Unknown -s/--strategy: %s", strategy);
916                         usage_with_options(git_notes_merge_usage, options);
917                 }
918         }
920         t = init_notes_check("merge");
922         strbuf_addf(&msg, "notes: Merged notes from %s into %s",
923                     remote_ref.buf, default_notes_ref());
924         strbuf_add(&(o.commit_msg), msg.buf + 7, msg.len - 7); /* skip "notes: " */
926         result = notes_merge(&o, t, result_sha1);
928         if (result >= 0) /* Merge resulted (trivially) in result_sha1 */
929                 /* Update default notes ref with new commit */
930                 update_ref(msg.buf, default_notes_ref(), result_sha1, NULL,
931                            0, DIE_ON_ERR);
932         else { /* Merge has unresolved conflicts */
933                 /* Update .git/NOTES_MERGE_PARTIAL with partial merge result */
934                 update_ref(msg.buf, "NOTES_MERGE_PARTIAL", result_sha1, NULL,
935                            0, DIE_ON_ERR);
936                 /* Store ref-to-be-updated into .git/NOTES_MERGE_REF */
937                 if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL))
938                         die("Failed to store link to current notes ref (%s)",
939                             default_notes_ref());
940                 printf("Automatic notes merge failed. Fix conflicts in %s and "
941                        "commit the result with 'git notes merge --commit', or "
942                        "abort the merge with 'git notes merge --abort'.\n",
943                        git_path(NOTES_MERGE_WORKTREE));
944         }
946         free_notes(t);
947         strbuf_release(&remote_ref);
948         strbuf_release(&msg);
949         return result < 0; /* return non-zero on conflicts */
952 static int remove_cmd(int argc, const char **argv, const char *prefix)
954         struct option options[] = {
955                 OPT_END()
956         };
957         const char *object_ref;
958         struct notes_tree *t;
959         unsigned char object[20];
960         int retval;
962         argc = parse_options(argc, argv, prefix, options,
963                              git_notes_remove_usage, 0);
965         if (1 < argc) {
966                 error(_("too many parameters"));
967                 usage_with_options(git_notes_remove_usage, options);
968         }
970         object_ref = argc ? argv[0] : "HEAD";
972         if (get_sha1(object_ref, object))
973                 die(_("Failed to resolve '%s' as a valid ref."), object_ref);
975         t = init_notes_check("remove");
977         retval = remove_note(t, object);
978         if (retval)
979                 fprintf(stderr, _("Object %s has no note\n"), sha1_to_hex(object));
980         else {
981                 fprintf(stderr, _("Removing note for object %s\n"),
982                         sha1_to_hex(object));
984                 commit_notes(t, "Notes removed by 'git notes remove'");
985         }
986         free_notes(t);
987         return retval;
990 static int prune(int argc, const char **argv, const char *prefix)
992         struct notes_tree *t;
993         int show_only = 0, verbose = 0;
994         struct option options[] = {
995                 OPT__DRY_RUN(&show_only, "do not remove, show only"),
996                 OPT__VERBOSE(&verbose, "report pruned notes"),
997                 OPT_END()
998         };
1000         argc = parse_options(argc, argv, prefix, options, git_notes_prune_usage,
1001                              0);
1003         if (argc) {
1004                 error(_("too many parameters"));
1005                 usage_with_options(git_notes_prune_usage, options);
1006         }
1008         t = init_notes_check("prune");
1010         prune_notes(t, (verbose ? NOTES_PRUNE_VERBOSE : 0) |
1011                 (show_only ? NOTES_PRUNE_VERBOSE|NOTES_PRUNE_DRYRUN : 0) );
1012         if (!show_only)
1013                 commit_notes(t, "Notes removed by 'git notes prune'");
1014         free_notes(t);
1015         return 0;
1018 static int get_ref(int argc, const char **argv, const char *prefix)
1020         struct option options[] = { OPT_END() };
1021         argc = parse_options(argc, argv, prefix, options,
1022                              git_notes_get_ref_usage, 0);
1024         if (argc) {
1025                 error("too many parameters");
1026                 usage_with_options(git_notes_get_ref_usage, options);
1027         }
1029         puts(default_notes_ref());
1030         return 0;
1033 int cmd_notes(int argc, const char **argv, const char *prefix)
1035         int result;
1036         const char *override_notes_ref = NULL;
1037         struct option options[] = {
1038                 OPT_STRING(0, "ref", &override_notes_ref, "notes_ref",
1039                            "use notes from <notes_ref>"),
1040                 OPT_END()
1041         };
1043         git_config(git_default_config, NULL);
1044         argc = parse_options(argc, argv, prefix, options, git_notes_usage,
1045                              PARSE_OPT_STOP_AT_NON_OPTION);
1047         if (override_notes_ref) {
1048                 struct strbuf sb = STRBUF_INIT;
1049                 strbuf_addstr(&sb, override_notes_ref);
1050                 expand_notes_ref(&sb);
1051                 setenv("GIT_NOTES_REF", sb.buf, 1);
1052                 strbuf_release(&sb);
1053         }
1055         if (argc < 1 || !strcmp(argv[0], "list"))
1056                 result = list(argc, argv, prefix);
1057         else if (!strcmp(argv[0], "add"))
1058                 result = add(argc, argv, prefix);
1059         else if (!strcmp(argv[0], "copy"))
1060                 result = copy(argc, argv, prefix);
1061         else if (!strcmp(argv[0], "append") || !strcmp(argv[0], "edit"))
1062                 result = append_edit(argc, argv, prefix);
1063         else if (!strcmp(argv[0], "show"))
1064                 result = show(argc, argv, prefix);
1065         else if (!strcmp(argv[0], "merge"))
1066                 result = merge(argc, argv, prefix);
1067         else if (!strcmp(argv[0], "remove"))
1068                 result = remove_cmd(argc, argv, prefix);
1069         else if (!strcmp(argv[0], "prune"))
1070                 result = prune(argc, argv, prefix);
1071         else if (!strcmp(argv[0], "get-ref"))
1072                 result = get_ref(argc, argv, prefix);
1073         else {
1074                 result = error(_("Unknown subcommand: %s"), argv[0]);
1075                 usage_with_options(git_notes_usage, options);
1076         }
1078         return result ? 1 : 0;