git/builtin/notes.c
Junio C Hamano 46538012d9 notes remove: --stdin reads from the standard input
Teach the command to read object names to remove from the standard
input, in addition to the object names given from the command line.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-19 10:54:16 -07:00

1104 lines
30 KiB
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"
#include "string-list.h"
#include "notes-merge.h"
static const char * const git_notes_usage[] = {
"git notes [--ref <notes_ref>] [list [<object>]]",
"git notes [--ref <notes_ref>] add [-f] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]",
"git notes [--ref <notes_ref>] copy [-f] <from-object> <to-object>",
"git notes [--ref <notes_ref>] append [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]",
"git notes [--ref <notes_ref>] edit [<object>]",
"git notes [--ref <notes_ref>] show [<object>]",
"git notes [--ref <notes_ref>] merge [-v | -q] [-s <strategy> ] <notes_ref>",
"git notes merge --commit [-v | -q]",
"git notes merge --abort [-v | -q]",
"git notes [--ref <notes_ref>] remove [<object>...]",
"git notes [--ref <notes_ref>] prune [-n | -v]",
"git notes [--ref <notes_ref>] get-ref",
NULL
};
static const char * const git_notes_list_usage[] = {
"git notes [list [<object>]]",
NULL
};
static const char * const git_notes_add_usage[] = {
"git notes add [<options>] [<object>]",
NULL
};
static const char * const git_notes_copy_usage[] = {
"git notes copy [<options>] <from-object> <to-object>",
"git notes copy --stdin [<from-object> <to-object>]...",
NULL
};
static const char * const git_notes_append_usage[] = {
"git notes append [<options>] [<object>]",
NULL
};
static const char * const git_notes_edit_usage[] = {
"git notes edit [<object>]",
NULL
};
static const char * const git_notes_show_usage[] = {
"git notes show [<object>]",
NULL
};
static const char * const git_notes_merge_usage[] = {
"git notes merge [<options>] <notes_ref>",
"git notes merge --commit [<options>]",
"git notes merge --abort [<options>]",
NULL
};
static const char * const git_notes_remove_usage[] = {
"git notes remove [<object>]",
NULL
};
static const char * const git_notes_prune_usage[] = {
"git notes prune [<options>]",
NULL
};
static const char * const git_notes_get_ref_usage[] = {
"git notes get-ref",
NULL
};
static const char note_template[] =
"\n"
"#\n"
"# Write/edit the notes for the following object:\n"
"#\n";
struct msg_arg {
int given;
int use_editor;
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->use_editor || !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 (msg->given)
write_or_die(fd, msg->buf.buf, msg->buf.len);
else 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);
strbuf_reset(&(msg->buf));
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;
strbuf_grow(&(msg->buf), strlen(arg) + 2);
if (msg->buf.len)
strbuf_addch(&(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 (msg->buf.len)
strbuf_addch(&(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;
}
static int parse_reuse_arg(const struct option *opt, const char *arg, int unset)
{
struct msg_arg *msg = opt->value;
char *buf;
unsigned char object[20];
enum object_type type;
unsigned long len;
if (msg->buf.len)
strbuf_addch(&(msg->buf), '\n');
if (get_sha1(arg, object))
die(_("Failed to resolve '%s' as a valid ref."), arg);
if (!(buf = read_sha1_file(object, &type, &len)) || !len) {
free(buf);
die(_("Failed to read object '%s'."), arg);;
}
strbuf_add(&(msg->buf), buf, len);
free(buf);
msg->given = 1;
return 0;
}
static int parse_reedit_arg(const struct option *opt, const char *arg, int unset)
{
struct msg_arg *msg = opt->value;
msg->use_editor = 1;
return parse_reuse_arg(opt, arg, unset);
}
void commit_notes(struct notes_tree *t, const char *msg)
{
struct strbuf buf = STRBUF_INIT;
unsigned char commit_sha1[20];
if (!t)
t = &default_notes_tree;
if (!t->initialized || !t->ref || !*t->ref)
die(_("Cannot commit uninitialized/unreferenced notes tree"));
if (!t->dirty)
return; /* don't have to commit an unchanged 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 */
create_notes_commit(t, NULL, buf.buf + 7, commit_sha1);
update_ref(buf.buf, t->ref, commit_sha1, NULL, 0, DIE_ON_ERR);
strbuf_release(&buf);
}
combine_notes_fn parse_combine_notes_fn(const char *v)
{
if (!strcasecmp(v, "overwrite"))
return combine_notes_overwrite;
else if (!strcasecmp(v, "ignore"))
return combine_notes_ignore;
else if (!strcasecmp(v, "concatenate"))
return combine_notes_concatenate;
else if (!strcasecmp(v, "cat_sort_uniq"))
return combine_notes_cat_sort_uniq;
else
return NULL;
}
static int notes_rewrite_config(const char *k, const char *v, void *cb)
{
struct notes_rewrite_cfg *c = cb;
if (!prefixcmp(k, "notes.rewrite.") && !strcmp(k+14, c->cmd)) {
c->enabled = git_config_bool(k, v);
return 0;
} else if (!c->mode_from_env && !strcmp(k, "notes.rewritemode")) {
if (!v)
config_error_nonbool(k);
c->combine = parse_combine_notes_fn(v);
if (!c->combine) {
error(_("Bad notes.rewriteMode value: '%s'"), v);
return 1;
}
return 0;
} else if (!c->refs_from_env && !strcmp(k, "notes.rewriteref")) {
/* note that a refs/ prefix is implied in the
* underlying for_each_glob_ref */
if (!prefixcmp(v, "refs/notes/"))
string_list_add_refs_by_glob(c->refs, v);
else
warning(_("Refusing to rewrite notes in %s"
" (outside of refs/notes/)"), v);
return 0;
}
return 0;
}
struct notes_rewrite_cfg *init_copy_notes_for_rewrite(const char *cmd)
{
struct notes_rewrite_cfg *c = xmalloc(sizeof(struct notes_rewrite_cfg));
const char *rewrite_mode_env = getenv(GIT_NOTES_REWRITE_MODE_ENVIRONMENT);
const char *rewrite_refs_env = getenv(GIT_NOTES_REWRITE_REF_ENVIRONMENT);
c->cmd = cmd;
c->enabled = 1;
c->combine = combine_notes_concatenate;
c->refs = xcalloc(1, sizeof(struct string_list));
c->refs->strdup_strings = 1;
c->refs_from_env = 0;
c->mode_from_env = 0;
if (rewrite_mode_env) {
c->mode_from_env = 1;
c->combine = parse_combine_notes_fn(rewrite_mode_env);
if (!c->combine)
/* TRANSLATORS: The first %s is the name of the
environment variable, the second %s is its value */
error(_("Bad %s value: '%s'"), GIT_NOTES_REWRITE_MODE_ENVIRONMENT,
rewrite_mode_env);
}
if (rewrite_refs_env) {
c->refs_from_env = 1;
string_list_add_refs_from_colon_sep(c->refs, rewrite_refs_env);
}
git_config(notes_rewrite_config, c);
if (!c->enabled || !c->refs->nr) {
string_list_clear(c->refs, 0);
free(c->refs);
free(c);
return NULL;
}
c->trees = load_notes_trees(c->refs);
string_list_clear(c->refs, 0);
free(c->refs);
return c;
}
int copy_note_for_rewrite(struct notes_rewrite_cfg *c,
const unsigned char *from_obj, const unsigned char *to_obj)
{
int ret = 0;
int i;
for (i = 0; c->trees[i]; i++)
ret = copy_note(c->trees[i], from_obj, to_obj, 1, c->combine) || ret;
return ret;
}
void finish_copy_notes_for_rewrite(struct notes_rewrite_cfg *c)
{
int i;
for (i = 0; c->trees[i]; i++) {
commit_notes(c->trees[i], "Notes added by 'git notes copy'");
free_notes(c->trees[i]);
}
free(c->trees);
free(c);
}
static int notes_copy_from_stdin(int force, const char *rewrite_cmd)
{
struct strbuf buf = STRBUF_INIT;
struct notes_rewrite_cfg *c = NULL;
struct notes_tree *t = NULL;
int ret = 0;
if (rewrite_cmd) {
c = init_copy_notes_for_rewrite(rewrite_cmd);
if (!c)
return 0;
} else {
init_notes(NULL, NULL, NULL, 0);
t = &default_notes_tree;
}
while (strbuf_getline(&buf, stdin, '\n') != EOF) {
unsigned char from_obj[20], to_obj[20];
struct strbuf **split;
int err;
split = strbuf_split(&buf, ' ');
if (!split[0] || !split[1])
die(_("Malformed input line: '%s'."), buf.buf);
strbuf_rtrim(split[0]);
strbuf_rtrim(split[1]);
if (get_sha1(split[0]->buf, from_obj))
die(_("Failed to resolve '%s' as a valid ref."), split[0]->buf);
if (get_sha1(split[1]->buf, to_obj))
die(_("Failed to resolve '%s' as a valid ref."), split[1]->buf);
if (rewrite_cmd)
err = copy_note_for_rewrite(c, from_obj, to_obj);
else
err = copy_note(t, from_obj, to_obj, force,
combine_notes_overwrite);
if (err) {
error(_("Failed to copy notes from '%s' to '%s'"),
split[0]->buf, split[1]->buf);
ret = 1;
}
strbuf_list_free(split);
}
if (!rewrite_cmd) {
commit_notes(t, "Notes added by 'git notes copy'");
free_notes(t);
} else {
finish_copy_notes_for_rewrite(c);
}
return ret;
}
static struct notes_tree *init_notes_check(const char *subcommand)
{
struct notes_tree *t;
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/)",
subcommand, t->ref);
return t;
}
static int list(int argc, const char **argv, const char *prefix)
{
struct notes_tree *t;
unsigned char object[20];
const unsigned char *note;
int retval = -1;
struct option options[] = {
OPT_END()
};
if (argc)
argc = parse_options(argc, argv, prefix, options,
git_notes_list_usage, 0);
if (1 < argc) {
error(_("too many parameters"));
usage_with_options(git_notes_list_usage, options);
}
t = init_notes_check("list");
if (argc) {
if (get_sha1(argv[0], object))
die(_("Failed to resolve '%s' as a valid ref."), argv[0]);
note = get_note(t, object);
if (note) {
puts(sha1_to_hex(note));
retval = 0;
} else
retval = error(_("No note found for object %s."),
sha1_to_hex(object));
} else
retval = for_each_note(t, 0, list_each_note, NULL);
free_notes(t);
return retval;
}
static int append_edit(int argc, const char **argv, const char *prefix);
static int add(int argc, const char **argv, const char *prefix)
{
int retval = 0, force = 0;
const char *object_ref;
struct notes_tree *t;
unsigned char object[20], new_note[20];
char logmsg[100];
const unsigned char *note;
struct msg_arg msg = { 0, 0, STRBUF_INIT };
struct option options[] = {
{ OPTION_CALLBACK, 'm', "message", &msg, "msg",
"note contents as a string", PARSE_OPT_NONEG,
parse_msg_arg},
{ OPTION_CALLBACK, 'F', "file", &msg, "file",
"note contents in a file", PARSE_OPT_NONEG,
parse_file_arg},
{ OPTION_CALLBACK, 'c', "reedit-message", &msg, "object",
"reuse and edit specified note object", PARSE_OPT_NONEG,
parse_reedit_arg},
{ OPTION_CALLBACK, 'C', "reuse-message", &msg, "object",
"reuse specified note object", PARSE_OPT_NONEG,
parse_reuse_arg},
OPT__FORCE(&force, "replace existing notes"),
OPT_END()
};
argc = parse_options(argc, argv, prefix, options, git_notes_add_usage,
PARSE_OPT_KEEP_ARGV0);
if (2 < argc) {
error(_("too many parameters"));
usage_with_options(git_notes_add_usage, options);
}
object_ref = argc > 1 ? argv[1] : "HEAD";
if (get_sha1(object_ref, object))
die(_("Failed to resolve '%s' as a valid ref."), object_ref);
t = init_notes_check("add");
note = get_note(t, object);
if (note) {
if (!force) {
if (!msg.given) {
/*
* Redirect to "edit" subcommand.
*
* We only end up here if none of -m/-F/-c/-C
* or -f are given. The original args are
* therefore still in argv[0-1].
*/
argv[0] = "edit";
free_notes(t);
return append_edit(argc, argv, prefix);
}
retval = error(_("Cannot add notes. Found existing notes "
"for object %s. Use '-f' to overwrite "
"existing notes"), sha1_to_hex(object));
goto out;
}
fprintf(stderr, _("Overwriting existing notes for object %s\n"),
sha1_to_hex(object));
}
create_note(object, &msg, 0, note, new_note);
if (is_null_sha1(new_note))
remove_note(t, object);
else if (add_note(t, object, new_note, combine_notes_overwrite))
die("BUG: combine_notes_overwrite failed");
snprintf(logmsg, sizeof(logmsg), "Notes %s by 'git notes %s'",
is_null_sha1(new_note) ? "removed" : "added", "add");
commit_notes(t, logmsg);
out:
free_notes(t);
strbuf_release(&(msg.buf));
return retval;
}
static int copy(int argc, const char **argv, const char *prefix)
{
int retval = 0, force = 0, from_stdin = 0;
const unsigned char *from_note, *note;
const char *object_ref;
unsigned char object[20], from_obj[20];
struct notes_tree *t;
const char *rewrite_cmd = NULL;
struct option options[] = {
OPT__FORCE(&force, "replace existing notes"),
OPT_BOOLEAN(0, "stdin", &from_stdin, "read objects from stdin"),
OPT_STRING(0, "for-rewrite", &rewrite_cmd, "command",
"load rewriting config for <command> (implies "
"--stdin)"),
OPT_END()
};
argc = parse_options(argc, argv, prefix, options, git_notes_copy_usage,
0);
if (from_stdin || rewrite_cmd) {
if (argc) {
error(_("too many parameters"));
usage_with_options(git_notes_copy_usage, options);
} else {
return notes_copy_from_stdin(force, rewrite_cmd);
}
}
if (argc < 2) {
error(_("too few parameters"));
usage_with_options(git_notes_copy_usage, options);
}
if (2 < argc) {
error(_("too many parameters"));
usage_with_options(git_notes_copy_usage, options);
}
if (get_sha1(argv[0], from_obj))
die(_("Failed to resolve '%s' as a valid ref."), argv[0]);
object_ref = 1 < argc ? argv[1] : "HEAD";
if (get_sha1(object_ref, object))
die(_("Failed to resolve '%s' as a valid ref."), object_ref);
t = init_notes_check("copy");
note = get_note(t, object);
if (note) {
if (!force) {
retval = error(_("Cannot copy notes. Found existing "
"notes for object %s. Use '-f' to "
"overwrite existing notes"),
sha1_to_hex(object));
goto out;
}
fprintf(stderr, _("Overwriting existing notes for object %s\n"),
sha1_to_hex(object));
}
from_note = get_note(t, from_obj);
if (!from_note) {
retval = error(_("Missing notes on source object %s. Cannot "
"copy."), sha1_to_hex(from_obj));
goto out;
}
if (add_note(t, object, from_note, combine_notes_overwrite))
die("BUG: combine_notes_overwrite failed");
commit_notes(t, "Notes added by 'git notes copy'");
out:
free_notes(t);
return retval;
}
static int append_edit(int argc, const char **argv, const char *prefix)
{
const char *object_ref;
struct notes_tree *t;
unsigned char object[20], new_note[20];
const unsigned char *note;
char logmsg[100];
const char * const *usage;
struct msg_arg msg = { 0, 0, STRBUF_INIT };
struct option options[] = {
{ OPTION_CALLBACK, 'm', "message", &msg, "msg",
"note contents as a string", PARSE_OPT_NONEG,
parse_msg_arg},
{ OPTION_CALLBACK, 'F', "file", &msg, "file",
"note contents in a file", PARSE_OPT_NONEG,
parse_file_arg},
{ OPTION_CALLBACK, 'c', "reedit-message", &msg, "object",
"reuse and edit specified note object", PARSE_OPT_NONEG,
parse_reedit_arg},
{ OPTION_CALLBACK, 'C', "reuse-message", &msg, "object",
"reuse specified note object", PARSE_OPT_NONEG,
parse_reuse_arg},
OPT_END()
};
int edit = !strcmp(argv[0], "edit");
usage = edit ? git_notes_edit_usage : git_notes_append_usage;
argc = parse_options(argc, argv, prefix, options, usage,
PARSE_OPT_KEEP_ARGV0);
if (2 < argc) {
error(_("too many parameters"));
usage_with_options(usage, options);
}
if (msg.given && edit)
fprintf(stderr, _("The -m/-F/-c/-C options have been deprecated "
"for the 'edit' subcommand.\n"
"Please use 'git notes add -f -m/-F/-c/-C' instead.\n"));
object_ref = 1 < argc ? argv[1] : "HEAD";
if (get_sha1(object_ref, object))
die(_("Failed to resolve '%s' as a valid ref."), object_ref);
t = init_notes_check(argv[0]);
note = get_note(t, object);
create_note(object, &msg, !edit, note, new_note);
if (is_null_sha1(new_note))
remove_note(t, object);
else if (add_note(t, object, new_note, combine_notes_overwrite))
die("BUG: combine_notes_overwrite failed");
snprintf(logmsg, sizeof(logmsg), "Notes %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;
}
static int show(int argc, const char **argv, const char *prefix)
{
const char *object_ref;
struct notes_tree *t;
unsigned char object[20];
const unsigned char *note;
int retval;
struct option options[] = {
OPT_END()
};
argc = parse_options(argc, argv, prefix, options, git_notes_show_usage,
0);
if (1 < argc) {
error(_("too many parameters"));
usage_with_options(git_notes_show_usage, options);
}
object_ref = argc ? argv[0] : "HEAD";
if (get_sha1(object_ref, object))
die(_("Failed to resolve '%s' as a valid ref."), object_ref);
t = init_notes_check("show");
note = get_note(t, object);
if (!note)
retval = error(_("No note found for object %s."),
sha1_to_hex(object));
else {
const char *show_args[3] = {"show", sha1_to_hex(note), NULL};
retval = execv_git_cmd(show_args);
}
free_notes(t);
return retval;
}
static int merge_abort(struct notes_merge_options *o)
{
int ret = 0;
/*
* Remove .git/NOTES_MERGE_PARTIAL and .git/NOTES_MERGE_REF, and call
* notes_merge_abort() to remove .git/NOTES_MERGE_WORKTREE.
*/
if (delete_ref("NOTES_MERGE_PARTIAL", NULL, 0))
ret += error("Failed to delete ref NOTES_MERGE_PARTIAL");
if (delete_ref("NOTES_MERGE_REF", NULL, REF_NODEREF))
ret += error("Failed to delete ref NOTES_MERGE_REF");
if (notes_merge_abort(o))
ret += error("Failed to remove 'git notes merge' worktree");
return ret;
}
static int merge_commit(struct notes_merge_options *o)
{
struct strbuf msg = STRBUF_INIT;
unsigned char sha1[20], parent_sha1[20];
struct notes_tree *t;
struct commit *partial;
struct pretty_print_context pretty_ctx;
/*
* Read partial merge result from .git/NOTES_MERGE_PARTIAL,
* and target notes ref from .git/NOTES_MERGE_REF.
*/
if (get_sha1("NOTES_MERGE_PARTIAL", sha1))
die("Failed to read ref NOTES_MERGE_PARTIAL");
else if (!(partial = lookup_commit_reference(sha1)))
die("Could not find commit from NOTES_MERGE_PARTIAL.");
else if (parse_commit(partial))
die("Could not parse commit from NOTES_MERGE_PARTIAL.");
if (partial->parents)
hashcpy(parent_sha1, partial->parents->item->object.sha1);
else
hashclr(parent_sha1);
t = xcalloc(1, sizeof(struct notes_tree));
init_notes(t, "NOTES_MERGE_PARTIAL", combine_notes_overwrite, 0);
o->local_ref = resolve_ref("NOTES_MERGE_REF", sha1, 0, NULL);
if (!o->local_ref)
die("Failed to resolve NOTES_MERGE_REF");
if (notes_merge_commit(o, t, partial, sha1))
die("Failed to finalize notes merge");
/* Reuse existing commit message in reflog message */
memset(&pretty_ctx, 0, sizeof(pretty_ctx));
format_commit_message(partial, "%s", &msg, &pretty_ctx);
strbuf_trim(&msg);
strbuf_insert(&msg, 0, "notes: ", 7);
update_ref(msg.buf, o->local_ref, sha1,
is_null_sha1(parent_sha1) ? NULL : parent_sha1,
0, DIE_ON_ERR);
free_notes(t);
strbuf_release(&msg);
return merge_abort(o);
}
static int merge(int argc, const char **argv, const char *prefix)
{
struct strbuf remote_ref = STRBUF_INIT, msg = STRBUF_INIT;
unsigned char result_sha1[20];
struct notes_tree *t;
struct notes_merge_options o;
int do_merge = 0, do_commit = 0, do_abort = 0;
int verbosity = 0, result;
const char *strategy = NULL;
struct option options[] = {
OPT_GROUP("General options"),
OPT__VERBOSITY(&verbosity),
OPT_GROUP("Merge options"),
OPT_STRING('s', "strategy", &strategy, "strategy",
"resolve notes conflicts using the given strategy "
"(manual/ours/theirs/union/cat_sort_uniq)"),
OPT_GROUP("Committing unmerged notes"),
{ OPTION_BOOLEAN, 0, "commit", &do_commit, NULL,
"finalize notes merge by committing unmerged notes",
PARSE_OPT_NOARG | PARSE_OPT_NONEG },
OPT_GROUP("Aborting notes merge resolution"),
{ OPTION_BOOLEAN, 0, "abort", &do_abort, NULL,
"abort notes merge",
PARSE_OPT_NOARG | PARSE_OPT_NONEG },
OPT_END()
};
argc = parse_options(argc, argv, prefix, options,
git_notes_merge_usage, 0);
if (strategy || do_commit + do_abort == 0)
do_merge = 1;
if (do_merge + do_commit + do_abort != 1) {
error("cannot mix --commit, --abort or -s/--strategy");
usage_with_options(git_notes_merge_usage, options);
}
if (do_merge && argc != 1) {
error("Must specify a notes ref to merge");
usage_with_options(git_notes_merge_usage, options);
} else if (!do_merge && argc) {
error("too many parameters");
usage_with_options(git_notes_merge_usage, options);
}
init_notes_merge_options(&o);
o.verbosity = verbosity + NOTES_MERGE_VERBOSITY_DEFAULT;
if (do_abort)
return merge_abort(&o);
if (do_commit)
return merge_commit(&o);
o.local_ref = default_notes_ref();
strbuf_addstr(&remote_ref, argv[0]);
expand_notes_ref(&remote_ref);
o.remote_ref = remote_ref.buf;
if (strategy) {
if (!strcmp(strategy, "manual"))
o.strategy = NOTES_MERGE_RESOLVE_MANUAL;
else if (!strcmp(strategy, "ours"))
o.strategy = NOTES_MERGE_RESOLVE_OURS;
else if (!strcmp(strategy, "theirs"))
o.strategy = NOTES_MERGE_RESOLVE_THEIRS;
else if (!strcmp(strategy, "union"))
o.strategy = NOTES_MERGE_RESOLVE_UNION;
else if (!strcmp(strategy, "cat_sort_uniq"))
o.strategy = NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ;
else {
error("Unknown -s/--strategy: %s", strategy);
usage_with_options(git_notes_merge_usage, options);
}
}
t = init_notes_check("merge");
strbuf_addf(&msg, "notes: Merged notes from %s into %s",
remote_ref.buf, default_notes_ref());
strbuf_add(&(o.commit_msg), msg.buf + 7, msg.len - 7); /* skip "notes: " */
result = notes_merge(&o, t, result_sha1);
if (result >= 0) /* Merge resulted (trivially) in result_sha1 */
/* Update default notes ref with new commit */
update_ref(msg.buf, default_notes_ref(), result_sha1, NULL,
0, DIE_ON_ERR);
else { /* Merge has unresolved conflicts */
/* Update .git/NOTES_MERGE_PARTIAL with partial merge result */
update_ref(msg.buf, "NOTES_MERGE_PARTIAL", result_sha1, NULL,
0, DIE_ON_ERR);
/* Store ref-to-be-updated into .git/NOTES_MERGE_REF */
if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL))
die("Failed to store link to current notes ref (%s)",
default_notes_ref());
printf("Automatic notes merge failed. Fix conflicts in %s and "
"commit the result with 'git notes merge --commit', or "
"abort the merge with 'git notes merge --abort'.\n",
git_path(NOTES_MERGE_WORKTREE));
}
free_notes(t);
strbuf_release(&remote_ref);
strbuf_release(&msg);
return result < 0; /* return non-zero on conflicts */
}
#define IGNORE_MISSING 1
static int remove_one_note(struct notes_tree *t, const char *name, unsigned flag)
{
int status;
unsigned char sha1[20];
if (get_sha1(name, sha1))
return error(_("Failed to resolve '%s' as a valid ref."), name);
status = remove_note(t, sha1);
if (status)
fprintf(stderr, _("Object %s has no note\n"), name);
else
fprintf(stderr, _("Removing note for object %s\n"), name);
return (flag & IGNORE_MISSING) ? 0 : status;
}
static int remove_cmd(int argc, const char **argv, const char *prefix)
{
unsigned flag = 0;
int from_stdin = 0;
struct option options[] = {
OPT_BIT(0, "ignore-missing", &flag,
"attempt to remove non-existent note is not an error",
IGNORE_MISSING),
OPT_BOOLEAN(0, "stdin", &from_stdin,
"read object names from the standard input"),
OPT_END()
};
struct notes_tree *t;
int retval = 0;
argc = parse_options(argc, argv, prefix, options,
git_notes_remove_usage, 0);
t = init_notes_check("remove");
if (!argc && !from_stdin) {
retval = remove_one_note(t, "HEAD", flag);
} else {
while (*argv) {
retval |= remove_one_note(t, *argv, flag);
argv++;
}
}
if (from_stdin) {
struct strbuf sb = STRBUF_INIT;
while (strbuf_getwholeline(&sb, stdin, '\n') != EOF) {
strbuf_rtrim(&sb);
retval |= remove_one_note(t, sb.buf, flag);
}
strbuf_release(&sb);
}
if (!retval)
commit_notes(t, "Notes removed by 'git notes remove'");
free_notes(t);
return retval;
}
static int prune(int argc, const char **argv, const char *prefix)
{
struct notes_tree *t;
int show_only = 0, verbose = 0;
struct option options[] = {
OPT__DRY_RUN(&show_only, "do not remove, show only"),
OPT__VERBOSE(&verbose, "report pruned notes"),
OPT_END()
};
argc = parse_options(argc, argv, prefix, options, git_notes_prune_usage,
0);
if (argc) {
error(_("too many parameters"));
usage_with_options(git_notes_prune_usage, options);
}
t = init_notes_check("prune");
prune_notes(t, (verbose ? NOTES_PRUNE_VERBOSE : 0) |
(show_only ? NOTES_PRUNE_VERBOSE|NOTES_PRUNE_DRYRUN : 0) );
if (!show_only)
commit_notes(t, "Notes removed by 'git notes prune'");
free_notes(t);
return 0;
}
static int get_ref(int argc, const char **argv, const char *prefix)
{
struct option options[] = { OPT_END() };
argc = parse_options(argc, argv, prefix, options,
git_notes_get_ref_usage, 0);
if (argc) {
error("too many parameters");
usage_with_options(git_notes_get_ref_usage, options);
}
puts(default_notes_ref());
return 0;
}
int cmd_notes(int argc, const char **argv, const char *prefix)
{
int result;
const char *override_notes_ref = NULL;
struct option options[] = {
OPT_STRING(0, "ref", &override_notes_ref, "notes_ref",
"use notes from <notes_ref>"),
OPT_END()
};
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, options, git_notes_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (override_notes_ref) {
struct strbuf sb = STRBUF_INIT;
strbuf_addstr(&sb, override_notes_ref);
expand_notes_ref(&sb);
setenv("GIT_NOTES_REF", sb.buf, 1);
strbuf_release(&sb);
}
if (argc < 1 || !strcmp(argv[0], "list"))
result = list(argc, argv, prefix);
else if (!strcmp(argv[0], "add"))
result = add(argc, argv, prefix);
else if (!strcmp(argv[0], "copy"))
result = copy(argc, argv, prefix);
else if (!strcmp(argv[0], "append") || !strcmp(argv[0], "edit"))
result = append_edit(argc, argv, prefix);
else if (!strcmp(argv[0], "show"))
result = show(argc, argv, prefix);
else if (!strcmp(argv[0], "merge"))
result = merge(argc, argv, prefix);
else if (!strcmp(argv[0], "remove"))
result = remove_cmd(argc, argv, prefix);
else if (!strcmp(argv[0], "prune"))
result = prune(argc, argv, prefix);
else if (!strcmp(argv[0], "get-ref"))
result = get_ref(argc, argv, prefix);
else {
result = error(_("Unknown subcommand: %s"), argv[0]);
usage_with_options(git_notes_usage, options);
}
return result ? 1 : 0;
}