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-rw-r--r--sequencer.c92
1 files changed, 51 insertions, 41 deletions
diff --git a/sequencer.c b/sequencer.c
index bbaddcb05a..77a1266760 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -1,4 +1,5 @@
#include "cache.h"
+#include "lockfile.h"
#include "sequencer.h"
#include "dir.h"
#include "object.h"
@@ -237,19 +238,50 @@ static int error_dirty_index(struct replay_opts *opts)
static int fast_forward_to(const unsigned char *to, const unsigned char *from,
int unborn, struct replay_opts *opts)
{
- struct ref_lock *ref_lock;
+ struct ref_transaction *transaction;
struct strbuf sb = STRBUF_INIT;
- int ret;
+ struct strbuf err = STRBUF_INIT;
read_cache();
if (checkout_fast_forward(from, to, 1))
- exit(1); /* the callee should have complained already */
- ref_lock = lock_any_ref_for_update("HEAD", unborn ? null_sha1 : from,
- 0, NULL);
+ exit(128); /* the callee should have complained already */
+
strbuf_addf(&sb, "%s: fast-forward", action_name(opts));
- ret = write_ref_sha1(ref_lock, to, sb.buf);
+
+ transaction = ref_transaction_begin(&err);
+ if (!transaction ||
+ ref_transaction_update(transaction, "HEAD",
+ to, unborn ? null_sha1 : from,
+ 0, 1, sb.buf, &err) ||
+ ref_transaction_commit(transaction, &err)) {
+ ref_transaction_free(transaction);
+ error("%s", err.buf);
+ strbuf_release(&sb);
+ strbuf_release(&err);
+ return -1;
+ }
+
strbuf_release(&sb);
- return ret;
+ strbuf_release(&err);
+ ref_transaction_free(transaction);
+ return 0;
+}
+
+void append_conflicts_hint(struct strbuf *msgbuf)
+{
+ int i;
+
+ strbuf_addch(msgbuf, '\n');
+ strbuf_commented_addf(msgbuf, "Conflicts:\n");
+ for (i = 0; i < active_nr;) {
+ const struct cache_entry *ce = active_cache[i++];
+ if (ce_stage(ce)) {
+ strbuf_commented_addf(msgbuf, "\t%s\n", ce->name);
+ while (i < active_nr && !strcmp(ce->name,
+ active_cache[i]->name))
+ i++;
+ }
+ }
}
static int do_recursive_merge(struct commit *base, struct commit *next,
@@ -259,11 +291,11 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
{
struct merge_options o;
struct tree *result, *next_tree, *base_tree, *head_tree;
- int clean, index_fd;
+ int clean;
const char **xopt;
static struct lock_file index_lock;
- index_fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
read_cache();
@@ -284,8 +316,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
next_tree, base_tree, &result);
if (active_cache_changed &&
- (write_cache(index_fd, active_cache, active_nr) ||
- commit_locked_index(&index_lock)))
+ write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
/* TRANSLATORS: %s will be "revert" or "cherry-pick" */
die(_("%s: Unable to write new index file"), action_name(opts));
rollback_lock_file(&index_lock);
@@ -293,21 +324,8 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
if (opts->signoff)
append_signoff(msgbuf, 0, 0);
- if (!clean) {
- int i;
- strbuf_addstr(msgbuf, "\nConflicts:\n");
- for (i = 0; i < active_nr;) {
- const struct cache_entry *ce = active_cache[i++];
- if (ce_stage(ce)) {
- strbuf_addch(msgbuf, '\t');
- strbuf_addstr(msgbuf, ce->name);
- strbuf_addch(msgbuf, '\n');
- while (i < active_nr && !strcmp(ce->name,
- active_cache[i]->name))
- i++;
- }
- }
- }
+ if (!clean)
+ append_conflicts_hint(msgbuf);
return !clean;
}
@@ -317,7 +335,7 @@ static int is_index_unchanged(void)
unsigned char head_sha1[20];
struct commit *head_commit;
- if (!resolve_ref_unsafe("HEAD", head_sha1, 1, NULL))
+ if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_sha1, NULL))
return error(_("Could not resolve HEAD commit\n"));
head_commit = lookup_commit(head_sha1);
@@ -337,9 +355,7 @@ static int is_index_unchanged(void)
active_cache_tree = cache_tree();
if (!cache_tree_fully_valid(active_cache_tree))
- if (cache_tree_update(active_cache_tree,
- (const struct cache_entry * const *)active_cache,
- active_nr, 0))
+ if (cache_tree_update(&the_index, 0))
return error(_("Unable to update cache tree\n"));
return !hashcmp(active_cache_tree->sha1, head_commit->tree->object.sha1);
@@ -357,18 +373,13 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts,
{
struct argv_array array;
int rc;
- char *gpg_sign;
argv_array_init(&array);
argv_array_push(&array, "commit");
argv_array_push(&array, "-n");
- if (opts->gpg_sign) {
- gpg_sign = xmalloc(3 + strlen(opts->gpg_sign));
- sprintf(gpg_sign, "-S%s", opts->gpg_sign);
- argv_array_push(&array, gpg_sign);
- free(gpg_sign);
- }
+ if (opts->gpg_sign)
+ argv_array_pushf(&array, "-S%s", opts->gpg_sign);
if (opts->signoff)
argv_array_push(&array, "-s");
if (!opts->edit) {
@@ -644,9 +655,8 @@ static void read_and_refresh_cache(struct replay_opts *opts)
if (read_index_preload(&the_index, NULL) < 0)
die(_("git %s: failed to read the index"), action_name(opts));
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
- if (the_index.cache_changed) {
- if (write_index(&the_index, index_fd) ||
- commit_locked_index(&index_lock))
+ if (the_index.cache_changed && index_fd >= 0) {
+ if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
die(_("git %s: failed to refresh the index"), action_name(opts));
}
rollback_lock_file(&index_lock);
@@ -865,7 +875,7 @@ static int rollback_single_pick(void)
if (!file_exists(git_path("CHERRY_PICK_HEAD")) &&
!file_exists(git_path("REVERT_HEAD")))
return error(_("no cherry-pick or revert in progress"));
- if (read_ref_full("HEAD", head_sha1, 0, NULL))
+ if (read_ref_full("HEAD", 0, head_sha1, NULL))
return error(_("cannot resolve HEAD"));
if (is_null_sha1(head_sha1))
return error(_("cannot abort from a branch yet to be born"));