static int show_diffstat = 1, shortlog_len, squash;
static int option_commit = 1, allow_fast_forward = 1;
-static int fast_forward_only;
+static int fast_forward_only, option_edit;
static int allow_trivial = 1, have_message;
static struct strbuf merge_msg;
static struct commit_list *remoteheads;
"create a single commit instead of doing a merge"),
OPT_BOOLEAN(0, "commit", &option_commit,
"perform a commit if the merge succeeds (default)"),
+ OPT_BOOLEAN('e', "edit", &option_edit,
+ "edit message before committing"),
OPT_BOOLEAN(0, "ff", &allow_fast_forward,
"allow fast-forward (default)"),
OPT_BOOLEAN(0, "ff-only", &fast_forward_only,
strbuf_release(&reflog_message);
}
-static struct object *want_commit(const char *name)
-{
- struct object *obj;
- unsigned char sha1[20];
- if (get_sha1(name, sha1))
- return NULL;
- obj = parse_object(sha1);
- return peel_to_type(name, 0, obj, OBJ_COMMIT);
-}
-
/* Get the name for the merge commit's message. */
static void merge_name(const char *remote, struct strbuf *msg)
{
- struct object *remote_head;
+ struct commit *remote_head;
unsigned char branch_head[20], buf_sha[20];
struct strbuf buf = STRBUF_INIT;
struct strbuf bname = STRBUF_INIT;
remote = bname.buf;
memset(branch_head, 0, sizeof(branch_head));
- remote_head = want_commit(remote);
+ remote_head = get_merge_parent(remote);
if (!remote_head)
die(_("'%s' does not point to a commit"), remote);
sha1_to_hex(branch_head), remote);
goto cleanup;
}
+ if (!prefixcmp(found_ref, "refs/tags/")) {
+ strbuf_addf(msg, "%s\t\ttag '%s' of .\n",
+ sha1_to_hex(branch_head), remote);
+ goto cleanup;
+ }
if (!prefixcmp(found_ref, "refs/remotes/")) {
strbuf_addf(msg, "%s\t\tremote-tracking branch '%s' of .\n",
sha1_to_hex(branch_head), remote);
if (resolve_ref(truname.buf, buf_sha, 1, NULL)) {
strbuf_addf(msg,
"%s\t\tbranch '%s'%s of .\n",
- sha1_to_hex(remote_head->sha1),
+ sha1_to_hex(remote_head->object.sha1),
truname.buf + 11,
(early ? " (early part)" : ""));
strbuf_release(&truname);
goto cleanup;
}
strbuf_addf(msg, "%s\t\tcommit '%s'\n",
- sha1_to_hex(remote_head->sha1), remote);
+ sha1_to_hex(remote_head->object.sha1), remote);
cleanup:
strbuf_release(&buf);
strbuf_release(&bname);
die(_("Unknown option for merge-recursive: -X%s"), xopts[x]);
o.branch1 = head_arg;
- o.branch2 = remoteheads->item->util;
+ o.branch2 = merge_remote_util(remoteheads->item)->name;
for (j = common; j; j = j->next)
commit_list_insert(j->item, &reversed);
}
-static void write_merge_msg(void)
+static void write_merge_msg(struct strbuf *msg)
{
int fd = open(git_path("MERGE_MSG"), O_WRONLY | O_CREAT, 0666);
if (fd < 0)
die_errno(_("Could not open '%s' for writing"),
git_path("MERGE_MSG"));
- if (write_in_full(fd, merge_msg.buf, merge_msg.len) != merge_msg.len)
+ if (write_in_full(fd, msg->buf, msg->len) != msg->len)
die_errno(_("Could not write to '%s'"), git_path("MERGE_MSG"));
close(fd);
}
-static void read_merge_msg(void)
+static void read_merge_msg(struct strbuf *msg)
{
- strbuf_reset(&merge_msg);
- if (strbuf_read_file(&merge_msg, git_path("MERGE_MSG"), 0) < 0)
+ strbuf_reset(msg);
+ if (strbuf_read_file(msg, git_path("MERGE_MSG"), 0) < 0)
die_errno(_("Could not read from '%s'"), git_path("MERGE_MSG"));
}
-static void run_prepare_commit_msg(void)
+static void write_merge_state(void);
+static void abort_commit(const char *err_msg)
+{
+ if (err_msg)
+ error("%s", err_msg);
+ fprintf(stderr,
+ _("Not committing merge; use 'git commit' to complete the merge.\n"));
+ write_merge_state();
+ exit(1);
+}
+
+static void prepare_to_commit(void)
{
- write_merge_msg();
+ struct strbuf msg = STRBUF_INIT;
+ strbuf_addbuf(&msg, &merge_msg);
+ strbuf_addch(&msg, '\n');
+ write_merge_msg(&msg);
run_hook(get_index_file(), "prepare-commit-msg",
git_path("MERGE_MSG"), "merge", NULL, NULL);
- read_merge_msg();
+ if (option_edit) {
+ if (launch_editor(git_path("MERGE_MSG"), NULL, NULL))
+ abort_commit(NULL);
+ }
+ read_merge_msg(&msg);
+ stripspace(&msg, option_edit);
+ if (!msg.len)
+ abort_commit(_("Empty commit message."));
+ strbuf_release(&merge_msg);
+ strbuf_addbuf(&merge_msg, &msg);
+ strbuf_release(&msg);
}
static int merge_trivial(struct commit *head)
parent->next = xmalloc(sizeof(*parent->next));
parent->next->item = remoteheads->item;
parent->next->next = NULL;
- run_prepare_commit_msg();
+ prepare_to_commit();
commit_tree(merge_msg.buf, result_tree, parent, result_commit, NULL);
finish(head, result_commit, "In-index merge");
drop_save();
for (j = remoteheads; j; j = j->next)
pptr = &commit_list_insert(j->item, pptr)->next;
}
- free_commit_list(remoteheads);
strbuf_addch(&merge_msg, '\n');
- run_prepare_commit_msg();
+ prepare_to_commit();
+ free_commit_list(remoteheads);
commit_tree(merge_msg.buf, result_tree, parents, result_commit, NULL);
strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy);
finish(head, result_commit, buf.buf);
return i;
}
+static void write_merge_state(void)
+{
+ int fd;
+ struct commit_list *j;
+ struct strbuf buf = STRBUF_INIT;
+
+ for (j = remoteheads; j; j = j->next) {
+ unsigned const char *sha1;
+ struct commit *c = j->item;
+ if (c->util && merge_remote_util(c)->obj) {
+ sha1 = merge_remote_util(c)->obj->sha1;
+ } else {
+ sha1 = c->object.sha1;
+ }
+ strbuf_addf(&buf, "%s\n", sha1_to_hex(sha1));
+ }
+ fd = open(git_path("MERGE_HEAD"), O_WRONLY | O_CREAT, 0666);
+ if (fd < 0)
+ die_errno(_("Could not open '%s' for writing"),
+ git_path("MERGE_HEAD"));
+ if (write_in_full(fd, buf.buf, buf.len) != buf.len)
+ die_errno(_("Could not write to '%s'"), git_path("MERGE_HEAD"));
+ close(fd);
+ strbuf_addch(&merge_msg, '\n');
+ write_merge_msg(&merge_msg);
+ fd = open(git_path("MERGE_MODE"), O_WRONLY | O_CREAT | O_TRUNC, 0666);
+ if (fd < 0)
+ die_errno(_("Could not open '%s' for writing"),
+ git_path("MERGE_MODE"));
+ strbuf_reset(&buf);
+ if (!allow_fast_forward)
+ strbuf_addf(&buf, "no-ff");
+ if (write_in_full(fd, buf.buf, buf.len) != buf.len)
+ die_errno(_("Could not write to '%s'"), git_path("MERGE_MODE"));
+ close(fd);
+}
+
int cmd_merge(int argc, const char **argv, const char *prefix)
{
unsigned char result_tree[20];
argv += 2;
argc -= 2;
} else if (!head_commit) {
- struct object *remote_head;
+ struct commit *remote_head;
/*
* If the merged head is a valid one there is no reason
* to forbid "git merge" into a branch yet to be born.
if (!allow_fast_forward)
die(_("Non-fast-forward commit does not make sense into "
"an empty head"));
- remote_head = want_commit(argv[0]);
+ remote_head = get_merge_parent(argv[0]);
if (!remote_head)
die(_("%s - not something we can merge"), argv[0]);
- read_empty(remote_head->sha1, 0);
- update_ref("initial pull", "HEAD", remote_head->sha1, NULL, 0,
- DIE_ON_ERR);
+ read_empty(remote_head->object.sha1, 0);
+ update_ref("initial pull", "HEAD", remote_head->object.sha1,
+ NULL, 0, DIE_ON_ERR);
return 0;
} else {
struct strbuf merge_names = STRBUF_INIT;
head_arg = "HEAD";
/*
- * All the rest are the commits being merged;
- * prepare the standard merge summary message to
- * be appended to the given message. If remote
- * is invalid we will die later in the common
- * codepath so we discard the error in this
- * loop.
+ * All the rest are the commits being merged; prepare
+ * the standard merge summary message to be appended
+ * to the given message.
*/
for (i = 0; i < argc; i++)
merge_name(argv[i], &merge_names);
if (!have_message || shortlog_len) {
- fmt_merge_msg(&merge_names, &merge_msg, !have_message,
- shortlog_len);
+ struct fmt_merge_msg_opts opts;
+ memset(&opts, 0, sizeof(opts));
+ opts.add_title = !have_message;
+ opts.shortlog_len = shortlog_len;
+
+ fmt_merge_msg(&merge_names, &merge_msg, &opts);
if (merge_msg.len)
strbuf_setlen(&merge_msg, merge_msg.len - 1);
}
strbuf_reset(&buf);
for (i = 0; i < argc; i++) {
- struct object *o;
- struct commit *commit;
-
- o = want_commit(argv[i]);
- if (!o)
+ struct commit *commit = get_merge_parent(argv[i]);
+ if (!commit)
die(_("%s - not something we can merge"), argv[i]);
- commit = lookup_commit(o->sha1);
- commit->util = (void *)argv[i];
remotes = &commit_list_insert(commit, remotes)->next;
-
- strbuf_addf(&buf, "GITHEAD_%s", sha1_to_hex(o->sha1));
+ strbuf_addf(&buf, "GITHEAD_%s",
+ sha1_to_hex(commit->object.sha1));
setenv(buf.buf, argv[i], 1);
strbuf_reset(&buf);
+ if (merge_remote_util(commit) &&
+ merge_remote_util(commit)->obj &&
+ merge_remote_util(commit)->obj->type == OBJ_TAG) {
+ option_edit = 1;
+ allow_fast_forward = 0;
+ }
}
if (!use_strategies) {
!hashcmp(common->item->object.sha1, head_commit->object.sha1)) {
/* Again the most common case of merging one remote. */
struct strbuf msg = STRBUF_INIT;
- struct object *o;
+ struct commit *commit;
char hex[41];
strcpy(hex, find_unique_abbrev(head_commit->object.sha1, DEFAULT_ABBREV));
if (have_message)
strbuf_addstr(&msg,
" (no commit created; -m option ignored)");
- o = want_commit(sha1_to_hex(remoteheads->item->object.sha1));
- if (!o)
+ commit = remoteheads->item;
+ if (!commit)
return 1;
- if (checkout_fast_forward(head_commit->object.sha1, remoteheads->item->object.sha1))
+ if (checkout_fast_forward(head_commit->object.sha1,
+ commit->object.sha1))
return 1;
- finish(head_commit, o->sha1, msg.buf);
+ finish(head_commit, commit->object.sha1, msg.buf);
drop_save();
return 0;
} else if (!remoteheads->next && common->next)
if (squash)
finish(head_commit, NULL, NULL);
- else {
- int fd;
- struct commit_list *j;
-
- for (j = remoteheads; j; j = j->next)
- strbuf_addf(&buf, "%s\n",
- sha1_to_hex(j->item->object.sha1));
- fd = open(git_path("MERGE_HEAD"), O_WRONLY | O_CREAT, 0666);
- if (fd < 0)
- die_errno(_("Could not open '%s' for writing"),
- git_path("MERGE_HEAD"));
- if (write_in_full(fd, buf.buf, buf.len) != buf.len)
- die_errno(_("Could not write to '%s'"), git_path("MERGE_HEAD"));
- close(fd);
- strbuf_addch(&merge_msg, '\n');
- write_merge_msg();
- fd = open(git_path("MERGE_MODE"), O_WRONLY | O_CREAT | O_TRUNC, 0666);
- if (fd < 0)
- die_errno(_("Could not open '%s' for writing"),
- git_path("MERGE_MODE"));
- strbuf_reset(&buf);
- if (!allow_fast_forward)
- strbuf_addf(&buf, "no-ff");
- if (write_in_full(fd, buf.buf, buf.len) != buf.len)
- die_errno(_("Could not write to '%s'"), git_path("MERGE_MODE"));
- close(fd);
- }
+ else
+ write_merge_state();
if (merge_was_ok) {
fprintf(stderr, _("Automatic merge went well; "