[thirdparty/git.git] / builtin-notes.c

/*
 * Builtin "git notes"
 *
 * Copyright (c) 2010 Johan Herland <johan@herland.net>
 *
 * Based on git-notes.sh by Johannes Schindelin,
 * and builtin-tag.c by Kristian Høgsberg and Carlos Rica.
 */

#include "cache.h"
#include "builtin.h"
#include "notes.h"
#include "blob.h"
#include "commit.h"
#include "refs.h"
#include "exec_cmd.h"
#include "run-command.h"
#include "parse-options.h"

static const char * const git_notes_usage[] = {
	"git notes [list [<object>]]",
	"git notes add [-f] [-m <msg> | -F <file>] [<object>]",
	"git notes append [-m <msg> | -F <file>] [<object>]",
	"git notes edit [<object>]",
	"git notes show [<object>]",
	"git notes remove [<object>]",
	"git notes prune",
	NULL
};

static const char note_template[] =
	"\n"
	"#\n"
	"# Write/edit the notes for the following object:\n"
	"#\n";

struct msg_arg {
	int given;
	struct strbuf buf;
};

static int list_each_note(const unsigned char *object_sha1,
		const unsigned char *note_sha1, char *note_path,
		void *cb_data)
{
	printf("%s %s\n", sha1_to_hex(note_sha1), sha1_to_hex(object_sha1));
	return 0;
}

static void write_note_data(int fd, const unsigned char *sha1)
{
	unsigned long size;
	enum object_type type;
	char *buf = read_sha1_file(sha1, &type, &size);
	if (buf) {
		if (size)
			write_or_die(fd, buf, size);
		free(buf);
	}
}

static void write_commented_object(int fd, const unsigned char *object)
{
	const char *show_args[5] =
		{"show", "--stat", "--no-notes", sha1_to_hex(object), NULL};
	struct child_process show;
	struct strbuf buf = STRBUF_INIT;
	FILE *show_out;

	/* Invoke "git show --stat --no-notes $object" */
	memset(&show, 0, sizeof(show));
	show.argv = show_args;
	show.no_stdin = 1;
	show.out = -1;
	show.err = 0;
	show.git_cmd = 1;
	if (start_command(&show))
		die("unable to start 'show' for object '%s'",
		    sha1_to_hex(object));

	/* Open the output as FILE* so strbuf_getline() can be used. */
	show_out = xfdopen(show.out, "r");
	if (show_out == NULL)
		die_errno("can't fdopen 'show' output fd");

	/* Prepend "# " to each output line and write result to 'fd' */
	while (strbuf_getline(&buf, show_out, '\n') != EOF) {
		write_or_die(fd, "# ", 2);
		write_or_die(fd, buf.buf, buf.len);
		write_or_die(fd, "\n", 1);
	}
	strbuf_release(&buf);
	if (fclose(show_out))
		die_errno("failed to close pipe to 'show' for object '%s'",
			  sha1_to_hex(object));
	if (finish_command(&show))
		die("failed to finish 'show' for object '%s'",
		    sha1_to_hex(object));
}

static void create_note(const unsigned char *object, struct msg_arg *msg,
			int append_only, const unsigned char *prev,
			unsigned char *result)
{
	char *path = NULL;

	if (!msg->given) {
		int fd;

		/* write the template message before editing: */
		path = git_pathdup("NOTES_EDITMSG");
		fd = open(path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
		if (fd < 0)
			die_errno("could not create file '%s'", path);

		if (prev && !append_only)
			write_note_data(fd, prev);
		write_or_die(fd, note_template, strlen(note_template));

		write_commented_object(fd, object);

		close(fd);

		if (launch_editor(path, &(msg->buf), NULL)) {
			die("Please supply the note contents using either -m" \
			    " or -F option");
		}
		stripspace(&(msg->buf), 1);
	}

	if (prev && append_only) {
		/* Append buf to previous note contents */
		unsigned long size;
		enum object_type type;
		char *prev_buf = read_sha1_file(prev, &type, &size);

		strbuf_grow(&(msg->buf), size + 1);
		if (msg->buf.len && prev_buf && size)
			strbuf_insert(&(msg->buf), 0, "\n", 1);
		if (prev_buf && size)
			strbuf_insert(&(msg->buf), 0, prev_buf, size);
		free(prev_buf);
	}

	if (!msg->buf.len) {
		fprintf(stderr, "Removing note for object %s\n",
			sha1_to_hex(object));
		hashclr(result);
	} else {
		if (write_sha1_file(msg->buf.buf, msg->buf.len, blob_type, result)) {
			error("unable to write note object");
			if (path)
				error("The note contents has been left in %s",
				      path);
			exit(128);
		}
	}

	if (path) {
		unlink_or_warn(path);
		free(path);
	}
}

static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
{
	struct msg_arg *msg = opt->value;

	if (!arg)
		return -1;

	strbuf_grow(&(msg->buf), strlen(arg) + 2);
	if (msg->buf.len)
		strbuf_addstr(&(msg->buf), "\n");
	strbuf_addstr(&(msg->buf), arg);
	stripspace(&(msg->buf), 0);

	msg->given = 1;
	return 0;
}

static int parse_file_arg(const struct option *opt, const char *arg, int unset)
{
	struct msg_arg *msg = opt->value;

	if (!arg)
		return -1;

	if (msg->buf.len)
		strbuf_addstr(&(msg->buf), "\n");
	if (!strcmp(arg, "-")) {
		if (strbuf_read(&(msg->buf), 0, 1024) < 0)
			die_errno("cannot read '%s'", arg);
	} else if (strbuf_read_file(&(msg->buf), arg, 1024) < 0)
		die_errno("could not open or read '%s'", arg);
	stripspace(&(msg->buf), 0);

	msg->given = 1;
	return 0;
}

int commit_notes(struct notes_tree *t, const char *msg)
{
	struct commit_list *parent;
	unsigned char tree_sha1[20], prev_commit[20], new_commit[20];
	struct strbuf buf = STRBUF_INIT;

	if (!t)
		t = &default_notes_tree;
	if (!t->initialized || !t->ref || !*t->ref)
		die("Cannot commit uninitialized/unreferenced notes tree");

	/* Prepare commit message and reflog message */
	strbuf_addstr(&buf, "notes: "); /* commit message starts at index 7 */
	strbuf_addstr(&buf, msg);
	if (buf.buf[buf.len - 1] != '\n')
		strbuf_addch(&buf, '\n'); /* Make sure msg ends with newline */

	/* Convert notes tree to tree object */
	if (write_notes_tree(t, tree_sha1))
		die("Failed to write current notes tree to database");

	/* Create new commit for the tree object */
	if (!read_ref(t->ref, prev_commit)) { /* retrieve parent commit */
		parent = xmalloc(sizeof(*parent));
		parent->item = lookup_commit(prev_commit);
		parent->next = NULL;
	} else {
		hashclr(prev_commit);
		parent = NULL;
	}
	if (commit_tree(buf.buf + 7, tree_sha1, parent, new_commit, NULL))
		die("Failed to commit notes tree to database");

	/* Update notes ref with new commit */
	update_ref(buf.buf, t->ref, new_commit, prev_commit, 0, DIE_ON_ERR);

	strbuf_release(&buf);
	return 0;
}

int cmd_notes(int argc, const char **argv, const char *prefix)
{
	struct notes_tree *t;
	unsigned char object[20], new_note[20];
	const unsigned char *note;
	const char *object_ref;
	char logmsg[100];

	int list = 0, add = 0, append = 0, edit = 0, show = 0, remove = 0,
	    prune = 0, force = 0;
	int given_object;
	struct msg_arg msg = { 0, STRBUF_INIT };
	struct option options[] = {
		OPT_GROUP("Notes options"),
		OPT_CALLBACK('m', "message", &msg, "MSG",
			     "note contents as a string", parse_msg_arg),
		OPT_CALLBACK('F', "file", &msg, "FILE",
			     "note contents in a file", parse_file_arg),
		OPT_BOOLEAN('f', "force", &force, "replace existing notes"),
		OPT_END()
	};

	git_config(git_default_config, NULL);

	argc = parse_options(argc, argv, prefix, options, git_notes_usage, 0);

	if (argc && !strcmp(argv[0], "list"))
		list = 1;
	else if (argc && !strcmp(argv[0], "add"))
		add = 1;
	else if (argc && !strcmp(argv[0], "append"))
		append = 1;
	else if (argc && !strcmp(argv[0], "edit"))
		edit = 1;
	else if (argc && !strcmp(argv[0], "show"))
		show = 1;
	else if (argc && !strcmp(argv[0], "remove"))
		remove = 1;
	else if (argc && !strcmp(argv[0], "prune"))
		prune = 1;
	else if (!argc)
		list = 1; /* Default to 'list' if no other subcommand given */

	if (list + add + append + edit + show + remove + prune != 1)
		usage_with_options(git_notes_usage, options);

	if (msg.given && !(add || append || edit)) {
		error("cannot use -m/-F options with %s subcommand.", argv[0]);
		usage_with_options(git_notes_usage, options);
	}

	if (msg.given && edit) {
		fprintf(stderr, "The -m and -F options has been deprecated for"
			" the 'edit' subcommand.\n"
			"Please use 'git notes add -f -m/-F' instead.\n");
	}


	if (force && !add) {
		error("cannot use -f option with %s subcommand.", argv[0]);
		usage_with_options(git_notes_usage, options);
	}

	given_object = argc == 2;
	object_ref = given_object ? argv[1] : "HEAD";
	if (argc > 2 || (prune && argc > 1)) {
		error("too many parameters");
		usage_with_options(git_notes_usage, options);
	}

	if (get_sha1(object_ref, object))
		die("Failed to resolve '%s' as a valid ref.", object_ref);

	init_notes(NULL, NULL, NULL, 0);
	t = &default_notes_tree;

	if (prefixcmp(t->ref, "refs/notes/"))
		die("Refusing to %s notes in %s (outside of refs/notes/)",
		    argv[0], t->ref);

	note = get_note(t, object);

	/* list command */

	if (list) {
		if (given_object) {
			if (note) {
				puts(sha1_to_hex(note));
				return 0;
			}
		} else
			return for_each_note(t, 0, list_each_note, NULL);
	}

	/* show command */

	if ((list || show) && !note) {
		error("No note found for object %s.", sha1_to_hex(object));
		return 1;
	} else if (show) {
		const char *show_args[3] = {"show", sha1_to_hex(note), NULL};
		return execv_git_cmd(show_args);
	}

	/* add/append/edit/remove/prune command */

	if (add && note) {
		if (force)
			fprintf(stderr, "Overwriting existing notes for object %s\n",
				sha1_to_hex(object));
		else {
			error("Cannot add notes. Found existing notes for object %s. "
			      "Use '-f' to overwrite existing notes",
			      sha1_to_hex(object));
			return 1;
		}
	}

	if (remove) {
		msg.given = 1;
		strbuf_reset(&(msg.buf));
	}

	if (prune) {
		hashclr(new_note);
		prune_notes(t);
	} else {
		create_note(object, &msg, append, note, new_note);
		if (is_null_sha1(new_note))
			remove_note(t, object);
		else
			add_note(t, object, new_note, combine_notes_overwrite);
	}
	snprintf(logmsg, sizeof(logmsg), "Note %s by 'git notes %s'",
		 is_null_sha1(new_note) ? "removed" : "added", argv[0]);
	commit_notes(t, logmsg);

	free_notes(t);
	strbuf_release(&(msg.buf));
	return 0;
}
Commit	Line	Data
cd067d3b JH	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	*/
	9
	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
	20	static const char * const git_notes_usage[] = {
e397421a	21	"git notes [list [<object>]]",
7aa4754e	22	"git notes add [-f] [-m <msg> \| -F <file>] [<object>]",
2347fae5	23	"git notes append [-m <msg> \| -F <file>] [<object>]",
aaec9bcf	24	"git notes edit [<object>]",
cd067d3b	25	"git notes show [<object>]",
92b3385f	26	"git notes remove [<object>]",
d6576e1f	27	"git notes prune",
cd067d3b JH	28	NULL
	29	};
	30
	31	static const char note_template[] =
	32	"\n"
	33	"#\n"
	34	"# Write/edit the notes for the following object:\n"
	35	"#\n";
	36
348f199b JH	37	struct msg_arg {
	38	int given;
	39	struct strbuf buf;
	40	};
	41
e397421a JH	42	static int list_each_note(const unsigned char *object_sha1,
	43	const unsigned char note_sha1, char note_path,
	44	void *cb_data)
	45	{
	46	printf("%s %s\n", sha1_to_hex(note_sha1), sha1_to_hex(object_sha1));
	47	return 0;
	48	}
	49
cd067d3b JH	50	static void write_note_data(int fd, const unsigned char *sha1)
	51	{
	52	unsigned long size;
	53	enum object_type type;
	54	char *buf = read_sha1_file(sha1, &type, &size);
	55	if (buf) {
	56	if (size)
	57	write_or_die(fd, buf, size);
	58	free(buf);
	59	}
	60	}
	61
	62	static void write_commented_object(int fd, const unsigned char *object)
	63	{
	64	const char *show_args[5] =
	65	{"show", "--stat", "--no-notes", sha1_to_hex(object), NULL};
	66	struct child_process show;
	67	struct strbuf buf = STRBUF_INIT;
	68	FILE *show_out;
	69
	70	/* Invoke "git show --stat --no-notes $object" */
	71	memset(&show, 0, sizeof(show));
	72	show.argv = show_args;
	73	show.no_stdin = 1;
	74	show.out = -1;
	75	show.err = 0;
	76	show.git_cmd = 1;
	77	if (start_command(&show))
	78	die("unable to start 'show' for object '%s'",
	79	sha1_to_hex(object));
	80
	81	/* Open the output as FILE* so strbuf_getline() can be used. */
	82	show_out = xfdopen(show.out, "r");
	83	if (show_out == NULL)
	84	die_errno("can't fdopen 'show' output fd");
	85
	86	/* Prepend "# " to each output line and write result to 'fd' */
	87	while (strbuf_getline(&buf, show_out, '\n') != EOF) {
	88	write_or_die(fd, "# ", 2);
	89	write_or_die(fd, buf.buf, buf.len);
	90	write_or_die(fd, "\n", 1);
	91	}
	92	strbuf_release(&buf);
	93	if (fclose(show_out))
	94	die_errno("failed to close pipe to 'show' for object '%s'",
	95	sha1_to_hex(object));
	96	if (finish_command(&show))
	97	die("failed to finish 'show' for object '%s'",
	98	sha1_to_hex(object));
	99	}
	100
348f199b JH	101	static void create_note(const unsigned char object, struct msg_arg msg,
348f199b JH	102	int append_only, const unsigned char *prev,
cd067d3b JH	103	unsigned char *result)
	104	{
	105	char *path = NULL;
	106
348f199b	107	if (!msg->given) {
cd067d3b JH	108	int fd;
	109
	110	/* write the template message before editing: */
	111	path = git_pathdup("NOTES_EDITMSG");
	112	fd = open(path, O_CREAT \| O_TRUNC \| O_WRONLY, 0600);
	113	if (fd < 0)
	114	die_errno("could not create file '%s'", path);
	115
2347fae5	116	if (prev && !append_only)
cd067d3b JH	117	write_note_data(fd, prev);
	118	write_or_die(fd, note_template, strlen(note_template));
	119
	120	write_commented_object(fd, object);
	121
	122	close(fd);
	123
348f199b	124	if (launch_editor(path, &(msg->buf), NULL)) {
cd067d3b JH	125	die("Please supply the note contents using either -m" \
	126	" or -F option");
	127	}
348f199b	128	stripspace(&(msg->buf), 1);
cd067d3b JH	129	}
cd067d3b JH	130
2347fae5 JH	131	if (prev && append_only) {
	132	/* Append buf to previous note contents */
	133	unsigned long size;
	134	enum object_type type;
	135	char *prev_buf = read_sha1_file(prev, &type, &size);
	136
348f199b JH	137	strbuf_grow(&(msg->buf), size + 1);
	138	if (msg->buf.len && prev_buf && size)
	139	strbuf_insert(&(msg->buf), 0, "\n", 1);
2347fae5	140	if (prev_buf && size)
348f199b	141	strbuf_insert(&(msg->buf), 0, prev_buf, size);
2347fae5 JH	142	free(prev_buf);
	143	}
	144
348f199b	145	if (!msg->buf.len) {
cd067d3b JH	146	fprintf(stderr, "Removing note for object %s\n",
	147	sha1_to_hex(object));
	148	hashclr(result);
	149	} else {
348f199b	150	if (write_sha1_file(msg->buf.buf, msg->buf.len, blob_type, result)) {
cd067d3b JH	151	error("unable to write note object");
	152	if (path)
	153	error("The note contents has been left in %s",
	154	path);
	155	exit(128);
	156	}
	157	}
	158
	159	if (path) {
	160	unlink_or_warn(path);
	161	free(path);
	162	}
	163	}
	164
cd067d3b JH	165	static int parse_msg_arg(const struct option opt, const char arg, int unset)
	166	{
	167	struct msg_arg *msg = opt->value;
	168
	169	if (!arg)
	170	return -1;
348f199b JH	171
348f199b JH	172	strbuf_grow(&(msg->buf), strlen(arg) + 2);
cd067d3b	173	if (msg->buf.len)
348f199b	174	strbuf_addstr(&(msg->buf), "\n");
cd067d3b	175	strbuf_addstr(&(msg->buf), arg);
348f199b JH	176	stripspace(&(msg->buf), 0);
	177
	178	msg->given = 1;
	179	return 0;
	180	}
	181
	182	static int parse_file_arg(const struct option opt, const char arg, int unset)
	183	{
	184	struct msg_arg *msg = opt->value;
	185
	186	if (!arg)
	187	return -1;
	188
	189	if (msg->buf.len)
	190	strbuf_addstr(&(msg->buf), "\n");
	191	if (!strcmp(arg, "-")) {
	192	if (strbuf_read(&(msg->buf), 0, 1024) < 0)
	193	die_errno("cannot read '%s'", arg);
	194	} else if (strbuf_read_file(&(msg->buf), arg, 1024) < 0)
	195	die_errno("could not open or read '%s'", arg);
	196	stripspace(&(msg->buf), 0);
	197
cd067d3b JH	198	msg->given = 1;
	199	return 0;
	200	}
	201
	202	int commit_notes(struct notes_tree t, const char msg)
	203	{
	204	struct commit_list *parent;
	205	unsigned char tree_sha1[20], prev_commit[20], new_commit[20];
	206	struct strbuf buf = STRBUF_INIT;
	207
	208	if (!t)
	209	t = &default_notes_tree;
	210	if (!t->initialized \|\| !t->ref \|\| !*t->ref)
	211	die("Cannot commit uninitialized/unreferenced notes tree");
	212
	213	/* Prepare commit message and reflog message */
	214	strbuf_addstr(&buf, "notes: "); /* commit message starts at index 7 */
	215	strbuf_addstr(&buf, msg);
	216	if (buf.buf[buf.len - 1] != '\n')
	217	strbuf_addch(&buf, '\n'); /* Make sure msg ends with newline */
	218
	219	/* Convert notes tree to tree object */
	220	if (write_notes_tree(t, tree_sha1))
	221	die("Failed to write current notes tree to database");
	222
	223	/* Create new commit for the tree object */
	224	if (!read_ref(t->ref, prev_commit)) { /* retrieve parent commit */
	225	parent = xmalloc(sizeof(*parent));
	226	parent->item = lookup_commit(prev_commit);
	227	parent->next = NULL;
	228	} else {
	229	hashclr(prev_commit);
	230	parent = NULL;
	231	}
	232	if (commit_tree(buf.buf + 7, tree_sha1, parent, new_commit, NULL))
	233	die("Failed to commit notes tree to database");
	234
	235	/* Update notes ref with new commit */
	236	update_ref(buf.buf, t->ref, new_commit, prev_commit, 0, DIE_ON_ERR);
	237
	238	strbuf_release(&buf);
	239	return 0;
	240	}
	241
	242	int cmd_notes(int argc, const char *argv, const char prefix)
	243	{
cd067d3b JH	244	struct notes_tree *t;
	245	unsigned char object[20], new_note[20];
	246	const unsigned char *note;
92b3385f JH	247	const char *object_ref;
92b3385f JH	248	char logmsg[100];
a0b4dfa9	249
2347fae5 JH	250	int list = 0, add = 0, append = 0, edit = 0, show = 0, remove = 0,
2347fae5 JH	251	prune = 0, force = 0;
e397421a	252	int given_object;
cd067d3b JH	253	struct msg_arg msg = { 0, STRBUF_INIT };
cd067d3b JH	254	struct option options[] = {
aaec9bcf	255	OPT_GROUP("Notes options"),
348f199b	256	OPT_CALLBACK('m', "message", &msg, "MSG",
cd067d3b	257	"note contents as a string", parse_msg_arg),
348f199b JH	258	OPT_CALLBACK('F', "file", &msg, "FILE",
348f199b JH	259	"note contents in a file", parse_file_arg),
7aa4754e	260	OPT_BOOLEAN('f', "force", &force, "replace existing notes"),
cd067d3b JH	261	OPT_END()
	262	};
	263
	264	git_config(git_default_config, NULL);
	265
	266	argc = parse_options(argc, argv, prefix, options, git_notes_usage, 0);
	267
e397421a JH	268	if (argc && !strcmp(argv[0], "list"))
e397421a JH	269	list = 1;
7aa4754e JH	270	else if (argc && !strcmp(argv[0], "add"))
7aa4754e JH	271	add = 1;
2347fae5 JH	272	else if (argc && !strcmp(argv[0], "append"))
2347fae5 JH	273	append = 1;
e397421a	274	else if (argc && !strcmp(argv[0], "edit"))
cd067d3b JH	275	edit = 1;
	276	else if (argc && !strcmp(argv[0], "show"))
	277	show = 1;
92b3385f JH	278	else if (argc && !strcmp(argv[0], "remove"))
92b3385f JH	279	remove = 1;
d6576e1f JH	280	else if (argc && !strcmp(argv[0], "prune"))
d6576e1f JH	281	prune = 1;
e397421a JH	282	else if (!argc)
e397421a JH	283	list = 1; /* Default to 'list' if no other subcommand given */
cd067d3b	284
2347fae5	285	if (list + add + append + edit + show + remove + prune != 1)
cd067d3b JH	286	usage_with_options(git_notes_usage, options);
cd067d3b JH	287
348f199b	288	if (msg.given && !(add \|\| append \|\| edit)) {
92b3385f JH	289	error("cannot use -m/-F options with %s subcommand.", argv[0]);
	290	usage_with_options(git_notes_usage, options);
	291	}
	292
348f199b	293	if (msg.given && edit) {
aaec9bcf JH	294	fprintf(stderr, "The -m and -F options has been deprecated for"
	295	" the 'edit' subcommand.\n"
	296	"Please use 'git notes add -f -m/-F' instead.\n");
	297	}
	298
92b3385f	299
7aa4754e JH	300	if (force && !add) {
	301	error("cannot use -f option with %s subcommand.", argv[0]);
	302	usage_with_options(git_notes_usage, options);
	303	}
	304
e397421a JH	305	given_object = argc == 2;
e397421a JH	306	object_ref = given_object ? argv[1] : "HEAD";
d6576e1f	307	if (argc > 2 \|\| (prune && argc > 1)) {
cd067d3b JH	308	error("too many parameters");
	309	usage_with_options(git_notes_usage, options);
	310	}
	311
	312	if (get_sha1(object_ref, object))
	313	die("Failed to resolve '%s' as a valid ref.", object_ref);
	314
	315	init_notes(NULL, NULL, NULL, 0);
	316	t = &default_notes_tree;
	317
	318	if (prefixcmp(t->ref, "refs/notes/"))
	319	die("Refusing to %s notes in %s (outside of refs/notes/)",
92b3385f	320	argv[0], t->ref);
cd067d3b JH	321
	322	note = get_note(t, object);
	323
e397421a JH	324	/* list command */
	325
	326	if (list) {
	327	if (given_object) {
	328	if (note) {
	329	puts(sha1_to_hex(note));
	330	return 0;
	331	}
	332	} else
	333	return for_each_note(t, 0, list_each_note, NULL);
	334	}
	335
cd067d3b JH	336	/* show command */
cd067d3b JH	337
e397421a	338	if ((list \|\| show) && !note) {
cd067d3b JH	339	error("No note found for object %s.", sha1_to_hex(object));
	340	return 1;
	341	} else if (show) {
	342	const char *show_args[3] = {"show", sha1_to_hex(note), NULL};
	343	return execv_git_cmd(show_args);
	344	}
	345
2347fae5	346	/* add/append/edit/remove/prune command */
7aa4754e JH	347
	348	if (add && note) {
	349	if (force)
	350	fprintf(stderr, "Overwriting existing notes for object %s\n",
	351	sha1_to_hex(object));
	352	else {
	353	error("Cannot add notes. Found existing notes for object %s. "
	354	"Use '-f' to overwrite existing notes",
	355	sha1_to_hex(object));
	356	return 1;
	357	}
	358	}
92b3385f	359
348f199b JH	360	if (remove) {
	361	msg.given = 1;
	362	strbuf_reset(&(msg.buf));
cd067d3b JH	363	}
cd067d3b JH	364
d6576e1f JH	365	if (prune) {
	366	hashclr(new_note);
	367	prune_notes(t);
	368	} else {
348f199b	369	create_note(object, &msg, append, note, new_note);
d6576e1f JH	370	if (is_null_sha1(new_note))
	371	remove_note(t, object);
	372	else
	373	add_note(t, object, new_note, combine_notes_overwrite);
	374	}
92b3385f JH	375	snprintf(logmsg, sizeof(logmsg), "Note %s by 'git notes %s'",
92b3385f JH	376	is_null_sha1(new_note) ? "removed" : "added", argv[0]);
a0b4dfa9	377	commit_notes(t, logmsg);
cd067d3b JH	378
cd067d3b JH	379	free_notes(t);
348f199b	380	strbuf_release(&(msg.buf));
cd067d3b JH	381	return 0;
cd067d3b JH	382	}