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-rw-r--r--builtin/merge.c70
1 files changed, 46 insertions, 24 deletions
diff --git a/builtin/merge.c b/builtin/merge.c
index eddb8ae70d..133831d42f 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -13,6 +13,7 @@
#include "builtin.h"
#include "lockfile.h"
#include "run-command.h"
+#include "hook.h"
#include "diff.h"
#include "diff-merges.h"
#include "refs.h"
@@ -56,8 +57,8 @@ struct strategy {
static const char * const builtin_merge_usage[] = {
N_("git merge [<options>] [<commit>...]"),
- N_("git merge --abort"),
- N_("git merge --continue"),
+ "git merge --abort",
+ "git merge --continue",
NULL
};
@@ -86,11 +87,12 @@ static int signoff;
static const char *sign_commit;
static int autostash;
static int no_verify;
+static char *into_name;
static struct strategy all_strategy[] = {
- { "recursive", DEFAULT_TWOHEAD | NO_TRIVIAL },
+ { "recursive", NO_TRIVIAL },
{ "octopus", DEFAULT_OCTOPUS },
- { "ort", NO_TRIVIAL },
+ { "ort", DEFAULT_TWOHEAD | NO_TRIVIAL },
{ "resolve", 0 },
{ "ours", NO_FAST_FORWARD | NO_TRIVIAL },
{ "subtree", NO_FAST_FORWARD | NO_TRIVIAL },
@@ -285,6 +287,8 @@ static struct option builtin_merge_options[] = {
{ OPTION_LOWLEVEL_CALLBACK, 'F', "file", &merge_msg, N_("path"),
N_("read message from file"), PARSE_OPT_NONEG,
NULL, 0, option_read_message },
+ OPT_STRING(0, "into-name", &into_name, N_("name"),
+ N_("use <name> instead of the real target")),
OPT__VERBOSITY(&verbosity),
OPT_BOOL(0, "abort", &abort_current_merge,
N_("abort the current in-progress merge")),
@@ -309,10 +313,9 @@ static int save_state(struct object_id *stash)
int len;
struct child_process cp = CHILD_PROCESS_INIT;
struct strbuf buffer = STRBUF_INIT;
- const char *argv[] = {"stash", "create", NULL};
int rc = -1;
- cp.argv = argv;
+ strvec_pushl(&cp.args, "stash", "create", NULL);
cp.out = -1;
cp.git_cmd = 1;
@@ -469,7 +472,6 @@ static void finish(struct commit *head_commit,
* We ignore errors in 'gc --auto', since the
* user should see them.
*/
- close_object_store(the_repository->objects);
run_auto_maintenance(verbosity < 0);
}
}
@@ -488,7 +490,7 @@ static void finish(struct commit *head_commit,
}
/* Run a post-merge hook */
- run_hook_le(NULL, "post-merge", squash ? "1" : "0", NULL);
+ run_hooks_l("post-merge", squash ? "1" : "0", NULL);
apply_autostash(git_path_merge_autostash(the_repository));
strbuf_release(&reflog_message);
@@ -503,7 +505,7 @@ static void merge_name(const char *remote, struct strbuf *msg)
struct strbuf bname = STRBUF_INIT;
struct merge_remote_desc *desc;
const char *ptr;
- char *found_ref;
+ char *found_ref = NULL;
int len, early;
strbuf_branchname(&bname, remote, 0);
@@ -586,6 +588,7 @@ static void merge_name(const char *remote, struct strbuf *msg)
strbuf_addf(msg, "%s\t\tcommit '%s'\n",
oid_to_hex(&remote_head->object.oid), remote);
cleanup:
+ free(found_ref);
strbuf_release(&buf);
strbuf_release(&bname);
}
@@ -680,6 +683,7 @@ static int read_tree_trivial(struct object_id *common, struct object_id *head,
opts.verbose_update = 1;
opts.trivial_merges_only = 1;
opts.merge = 1;
+ opts.preserve_ignored = 0; /* FIXME: !overwrite_ignore */
trees[nr_trees] = parse_tree_indirect(common);
if (!trees[nr_trees++])
return -1;
@@ -738,7 +742,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
for (x = 0; x < xopts_nr; x++)
if (parse_merge_opt(&o, xopts[x]))
- die(_("Unknown option for merge-recursive: -X%s"), xopts[x]);
+ die(_("unknown strategy option: -X%s"), xopts[x]);
o.branch1 = head_arg;
o.branch2 = merge_remote_util(remoteheads->item)->name;
@@ -848,7 +852,7 @@ static void prepare_to_commit(struct commit_list *remoteheads)
* and write it out as a tree. We must do this before we invoke
* the editor and after we invoke run_status above.
*/
- if (find_hook("pre-merge-commit"))
+ if (hook_exists("pre-merge-commit"))
discard_cache();
read_cache_from(index_file);
strbuf_addbuf(&msg, &merge_msg);
@@ -861,9 +865,11 @@ static void prepare_to_commit(struct commit_list *remoteheads)
strbuf_commented_addf(&msg, "\n");
}
strbuf_commented_addf(&msg, _(merge_editor_comment));
- strbuf_commented_addf(&msg, _(cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS ?
- scissors_editor_comment :
- no_scissors_editor_comment), comment_line_char);
+ if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS)
+ strbuf_commented_addf(&msg, _(scissors_editor_comment));
+ else
+ strbuf_commented_addf(&msg,
+ _(no_scissors_editor_comment), comment_line_char);
}
if (signoff)
append_signoff(&msg, ignore_non_trailer(msg.buf, msg.len), 0);
@@ -1118,6 +1124,7 @@ static void prepare_merge_message(struct strbuf *merge_names, struct strbuf *mer
opts.add_title = !have_message;
opts.shortlog_len = shortlog_len;
opts.credit_people = (0 < option_edit);
+ opts.into_name = into_name;
fmt_merge_msg(merge_names, merge_msg, &opts);
if (merge_msg->len)
@@ -1135,9 +1142,7 @@ static void handle_fetch_head(struct commit_list **remotes, struct strbuf *merge
merge_names = &fetch_head_file;
filename = git_path_fetch_head(the_repository);
- fd = open(filename, O_RDONLY);
- if (fd < 0)
- die_errno(_("could not open '%s' for reading"), filename);
+ fd = xopen(filename, O_RDONLY);
if (strbuf_read(merge_names, fd, 0) < 0)
die_errno(_("could not read '%s'"), filename);
@@ -1268,13 +1273,16 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
int best_cnt = -1, merge_was_ok = 0, automerge_was_ok = 0;
struct commit_list *common = NULL;
const char *best_strategy = NULL, *wt_strategy = NULL;
- struct commit_list *remoteheads, *p;
+ struct commit_list *remoteheads = NULL, *p;
void *branch_to_free;
int orig_argc = argc;
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(builtin_merge_usage, builtin_merge_options);
+ prepare_repo_settings(the_repository);
+ the_repository->settings.command_requires_full_index = 0;
+
/*
* Check if we are _not_ on a detached HEAD, i.e. if there is a
* current branch.
@@ -1367,14 +1375,14 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
* There is no unmerged entry, don't advise 'git
* add/rm <file>', just 'git commit'.
*/
- if (advice_resolve_conflict)
+ if (advice_enabled(ADVICE_RESOLVE_CONFLICT))
die(_("You have not concluded your merge (MERGE_HEAD exists).\n"
"Please, commit your changes before you merge."));
else
die(_("You have not concluded your merge (MERGE_HEAD exists)."));
}
if (ref_exists("CHERRY_PICK_HEAD")) {
- if (advice_resolve_conflict)
+ if (advice_enabled(ADVICE_RESOLVE_CONFLICT))
die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n"
"Please, commit your changes before you merge."));
else
@@ -1392,9 +1400,9 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
if (squash) {
if (fast_forward == FF_NO)
- die(_("You cannot combine --squash with --no-ff."));
+ die(_("options '%s' and '%s' cannot be used together"), "--squash", "--no-ff.");
if (option_commit > 0)
- die(_("You cannot combine --squash with --commit."));
+ die(_("options '%s' and '%s' cannot be used together"), "--squash", "--commit.");
/*
* squash can now silently disable option_commit - this is not
* a problem as it is only overriding the default, not a user
@@ -1484,6 +1492,12 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
fast_forward = FF_NO;
}
+ if (!use_strategies && !pull_twohead &&
+ remoteheads && !remoteheads->next) {
+ char *default_strategy = getenv("GIT_TEST_MERGE_ALGORITHM");
+ if (default_strategy)
+ append_strategy(get_strategy(default_strategy));
+ }
if (!use_strategies) {
if (!remoteheads)
; /* already up-to-date */
@@ -1560,12 +1574,14 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
&head_commit->object.oid,
&commit->object.oid,
overwrite_ignore)) {
+ apply_autostash(git_path_merge_autostash(the_repository));
ret = 1;
goto done;
}
finish(head_commit, remoteheads, &commit->object.oid, msg.buf);
remove_merge_branch_state(the_repository);
+ strbuf_release(&msg);
goto done;
} else if (!remoteheads->next && common->next)
;
@@ -1620,7 +1636,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
}
if (fast_forward == FF_ONLY)
- die(_("Not possible to fast-forward, aborting."));
+ die_ff_impossible();
if (autostash)
create_autostash(the_repository,
@@ -1708,6 +1724,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
else
fprintf(stderr, _("Merge with strategy %s failed.\n"),
use_strategies[0]->name);
+ apply_autostash(git_path_merge_autostash(the_repository));
ret = 2;
goto done;
} else if (best_strategy == wt_strategy)
@@ -1715,7 +1732,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
else {
printf(_("Rewinding the tree to pristine...\n"));
restore_state(&head_commit->object.oid, &stash);
- printf(_("Using the %s to prepare resolving by hand.\n"),
+ printf(_("Using the %s strategy to prepare resolving by hand.\n"),
best_strategy);
try_merge_strategy(best_strategy, common, remoteheads,
head_commit);
@@ -1735,6 +1752,11 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
ret = suggest_conflicts();
done:
+ if (!automerge_was_ok) {
+ free_commit_list(common);
+ free_commit_list(remoteheads);
+ }
+ strbuf_release(&buf);
free(branch_to_free);
return ret;
}