#include "remote.h"
#include "fmt-merge-msg.h"
#include "gpg-interface.h"
+#include "sequencer.h"
#define DEFAULT_TWOHEAD (1<<0)
#define DEFAULT_OCTOPUS (1<<1)
};
static const char * const builtin_merge_usage[] = {
- N_("git merge [options] [<commit>...]"),
- N_("git merge [options] <msg> HEAD <commit>"),
+ N_("git merge [<options>] [<commit>...]"),
+ N_("git merge [<options>] <msg> HEAD <commit>"),
N_("git merge --abort"),
NULL
};
/* Cleans up metadata that is uninteresting after a succeeded merge. */
static void drop_save(void)
{
- unlink(git_path("MERGE_HEAD"));
- unlink(git_path("MERGE_MSG"));
- unlink(git_path("MERGE_MODE"));
+ unlink(git_path_merge_head());
+ unlink(git_path_merge_msg());
+ unlink(git_path_merge_mode());
}
static int save_state(unsigned char *stash)
struct pretty_print_context ctx = {0};
printf(_("Squash commit -- not updating HEAD\n"));
- filename = git_path("SQUASH_MSG");
+ filename = git_path_squash_msg();
fd = open(filename, O_WRONLY | O_CREAT, 0666);
if (fd < 0)
die_errno(_("Could not write to '%s'"), filename);
strbuf_release(&truname);
}
- if (!strcmp(remote, "FETCH_HEAD") &&
- !access(git_path("FETCH_HEAD"), R_OK)) {
- const char *filename;
- FILE *fp;
- struct strbuf line = STRBUF_INIT;
- char *ptr;
-
- filename = git_path("FETCH_HEAD");
- fp = fopen(filename, "r");
- if (!fp)
- die_errno(_("could not open '%s' for reading"),
- filename);
- strbuf_getline(&line, fp, '\n');
- fclose(fp);
- ptr = strstr(line.buf, "\tnot-for-merge\t");
- if (ptr)
- strbuf_remove(&line, ptr-line.buf+1, 13);
- strbuf_addbuf(msg, &line);
- strbuf_release(&line);
- goto cleanup;
- }
-
if (remote_head->util) {
struct merge_remote_desc *desc;
desc = merge_remote_util(remote_head);
static void write_merge_msg(struct strbuf *msg)
{
- const char *filename = git_path("MERGE_MSG");
+ const char *filename = git_path_merge_msg();
int fd = open(filename, O_WRONLY | O_CREAT, 0666);
if (fd < 0)
die_errno(_("Could not open '%s' for writing"),
static void read_merge_msg(struct strbuf *msg)
{
- const char *filename = git_path("MERGE_MSG");
+ const char *filename = git_path_merge_msg();
strbuf_reset(msg);
if (strbuf_read_file(msg, filename, 0) < 0)
die_errno(_("Could not read from '%s'"), filename);
strbuf_commented_addf(&msg, _(merge_editor_comment), comment_line_char);
write_merge_msg(&msg);
if (run_commit_hook(0 < option_edit, get_index_file(), "prepare-commit-msg",
- git_path("MERGE_MSG"), "merge", NULL))
+ git_path_merge_msg(), "merge", NULL))
abort_commit(remoteheads, NULL);
if (0 < option_edit) {
- if (launch_editor(git_path("MERGE_MSG"), NULL, NULL))
+ if (launch_editor(git_path_merge_msg(), NULL, NULL))
abort_commit(remoteheads, NULL);
}
read_merge_msg(&msg);
return 0;
}
-static int suggest_conflicts(int renormalizing)
+static int suggest_conflicts(void)
{
const char *filename;
FILE *fp;
- int pos;
+ struct strbuf msgbuf = STRBUF_INIT;
- filename = git_path("MERGE_MSG");
+ filename = git_path_merge_msg();
fp = fopen(filename, "a");
if (!fp)
die_errno(_("Could not open '%s' for writing"), filename);
- fprintf(fp, "\nConflicts:\n");
- for (pos = 0; pos < active_nr; pos++) {
- const struct cache_entry *ce = active_cache[pos];
-
- if (ce_stage(ce)) {
- fprintf(fp, "\t%s\n", ce->name);
- while (pos + 1 < active_nr &&
- !strcmp(ce->name,
- active_cache[pos + 1]->name))
- pos++;
- }
- }
+
+ append_conflicts_hint(&msgbuf);
+ fputs(msgbuf.buf, fp);
+ strbuf_release(&msgbuf);
fclose(fp);
rerere(allow_rerere_auto);
printf(_("Automatic merge failed; "
if (!branch)
die(_("No current branch."));
- if (!branch->remote)
+ if (!branch->remote_name)
die(_("No remote for the current branch."));
if (!branch->merge_nr)
die(_("No default upstream defined for the current branch."));
}
strbuf_addf(&buf, "%s\n", sha1_to_hex(sha1));
}
- filename = git_path("MERGE_HEAD");
+ filename = git_path_merge_head();
fd = open(filename, O_WRONLY | O_CREAT, 0666);
if (fd < 0)
die_errno(_("Could not open '%s' for writing"), filename);
strbuf_addch(&merge_msg, '\n');
write_merge_msg(&merge_msg);
- filename = git_path("MERGE_MODE");
+ filename = git_path_merge_mode();
fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd < 0)
die_errno(_("Could not open '%s' for writing"), filename);
strbuf_setlen(merge_msg, merge_msg->len - 1);
}
+static void handle_fetch_head(struct commit_list **remotes, struct strbuf *merge_names)
+{
+ const char *filename;
+ int fd, pos, npos;
+ struct strbuf fetch_head_file = STRBUF_INIT;
+
+ if (!merge_names)
+ merge_names = &fetch_head_file;
+
+ filename = git_path_fetch_head();
+ fd = open(filename, O_RDONLY);
+ if (fd < 0)
+ die_errno(_("could not open '%s' for reading"), filename);
+
+ if (strbuf_read(merge_names, fd, 0) < 0)
+ die_errno(_("could not read '%s'"), filename);
+ if (close(fd) < 0)
+ die_errno(_("could not close '%s'"), filename);
+
+ for (pos = 0; pos < merge_names->len; pos = npos) {
+ unsigned char sha1[20];
+ char *ptr;
+ struct commit *commit;
+
+ ptr = strchr(merge_names->buf + pos, '\n');
+ if (ptr)
+ npos = ptr - merge_names->buf + 1;
+ else
+ npos = merge_names->len;
+
+ if (npos - pos < 40 + 2 ||
+ get_sha1_hex(merge_names->buf + pos, sha1))
+ commit = NULL; /* bad */
+ else if (memcmp(merge_names->buf + pos + 40, "\t\t", 2))
+ continue; /* not-for-merge */
+ else {
+ char saved = merge_names->buf[pos + 40];
+ merge_names->buf[pos + 40] = '\0';
+ commit = get_merge_parent(merge_names->buf + pos);
+ merge_names->buf[pos + 40] = saved;
+ }
+ if (!commit) {
+ if (ptr)
+ *ptr = '\0';
+ die("not something we can merge in %s: %s",
+ filename, merge_names->buf + pos);
+ }
+ remotes = &commit_list_insert(commit, remotes)->next;
+ }
+
+ if (merge_names == &fetch_head_file)
+ strbuf_release(&fetch_head_file);
+}
+
static struct commit_list *collect_parents(struct commit *head_commit,
int *head_subsumed,
- int argc, const char **argv)
+ int argc, const char **argv,
+ struct strbuf *merge_msg)
{
int i;
struct commit_list *remoteheads = NULL;
struct commit_list **remotes = &remoteheads;
+ struct strbuf merge_names = STRBUF_INIT, *autogen = NULL;
+
+ if (merge_msg && (!have_message || shortlog_len))
+ autogen = &merge_names;
if (head_commit)
remotes = &commit_list_insert(head_commit, remotes)->next;
- for (i = 0; i < argc; i++) {
- struct commit *commit = get_merge_parent(argv[i]);
- if (!commit)
- help_unknown_ref(argv[i], "merge",
- "not something we can merge");
- remotes = &commit_list_insert(commit, remotes)->next;
+
+ if (argc == 1 && !strcmp(argv[0], "FETCH_HEAD")) {
+ handle_fetch_head(remotes, autogen);
+ remoteheads = reduce_parents(head_commit, head_subsumed, remoteheads);
+ } else {
+ for (i = 0; i < argc; i++) {
+ struct commit *commit = get_merge_parent(argv[i]);
+ if (!commit)
+ help_unknown_ref(argv[i], "merge",
+ "not something we can merge");
+ remotes = &commit_list_insert(commit, remotes)->next;
+ }
+ remoteheads = reduce_parents(head_commit, head_subsumed, remoteheads);
+ if (autogen) {
+ struct commit_list *p;
+ for (p = remoteheads; p; p = p->next)
+ merge_name(merge_remote_util(p->item)->name, autogen);
+ }
+ }
+
+ if (autogen) {
+ prepare_merge_message(autogen, merge_msg);
+ strbuf_release(autogen);
}
- return reduce_parents(head_commit, head_subsumed, remoteheads);
+ return remoteheads;
}
int cmd_merge(int argc, const char **argv, const char *prefix)
int nargc = 2;
const char *nargv[] = {"reset", "--merge", NULL};
- if (!file_exists(git_path("MERGE_HEAD")))
+ if (!file_exists(git_path_merge_head()))
die(_("There is no merge to abort (MERGE_HEAD missing)."));
/* Invoke 'git reset --merge' */
if (read_cache_unmerged())
die_resolve_conflict("merge");
- if (file_exists(git_path("MERGE_HEAD"))) {
+ if (file_exists(git_path_merge_head())) {
/*
* There is no unmerged entry, don't advise 'git
* add/rm <file>', just 'git commit'.
else
die(_("You have not concluded your merge (MERGE_HEAD exists)."));
}
- if (file_exists(git_path("CHERRY_PICK_HEAD"))) {
+ if (file_exists(git_path_cherry_pick_head())) {
if (advice_resolve_conflict)
die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n"
"Please, commit your changes before you merge."));
if (fast_forward == FF_NO)
die(_("Non-fast-forward commit does not make sense into "
"an empty head"));
- remoteheads = collect_parents(head_commit, &head_subsumed, argc, argv);
+ remoteheads = collect_parents(head_commit, &head_subsumed,
+ argc, argv, NULL);
remote_head = remoteheads->item;
if (!remote_head)
die(_("%s - not something we can merge"), argv[0]);
*/
if (!have_message &&
is_old_style_invocation(argc, argv, head_commit->object.sha1)) {
+ warning("old-style 'git merge <msg> HEAD <commit>' is deprecated.");
strbuf_addstr(&merge_msg, argv[0]);
head_arg = argv[1];
argv += 2;
argc -= 2;
- remoteheads = collect_parents(head_commit, &head_subsumed, argc, argv);
+ remoteheads = collect_parents(head_commit, &head_subsumed,
+ argc, argv, NULL);
} else {
/* We are invoked directly as the first-class UI. */
head_arg = "HEAD";
* the standard merge summary message to be appended
* to the given message.
*/
- remoteheads = collect_parents(head_commit, &head_subsumed, argc, argv);
-
- if (!have_message || shortlog_len) {
- struct strbuf merge_names = STRBUF_INIT;
-
- for (p = remoteheads; p; p = p->next)
- merge_name(merge_remote_util(p->item)->name, &merge_names);
- prepare_merge_message(&merge_names, &merge_msg);
- strbuf_release(&merge_names);
- }
+ remoteheads = collect_parents(head_commit, &head_subsumed,
+ argc, argv, &merge_msg);
}
if (!head_commit || !argc)
if (!remoteheads)
; /* already up-to-date */
else if (!remoteheads->next)
- common = get_merge_bases(head_commit, remoteheads->item, 1);
+ common = get_merge_bases(head_commit, remoteheads->item);
else {
struct commit_list *list = remoteheads;
commit_list_insert(head_commit, &list);
* merge_bases again, otherwise "git merge HEAD^
* HEAD^^" would be missed.
*/
- common_one = get_merge_bases(head_commit, j->item, 1);
+ common_one = get_merge_bases(head_commit, j->item);
if (hashcmp(common_one->item->object.sha1,
j->item->object.sha1)) {
up_to_date = 0;
fprintf(stderr, _("Automatic merge went well; "
"stopped before committing as requested\n"));
else
- ret = suggest_conflicts(option_renormalize);
+ ret = suggest_conflicts();
done:
free(branch_to_free);