static int allow_rerere_auto;
static const char *me;
+
+/* Merge strategy. */
static const char *strategy;
+static const char **xopts;
+static size_t xopts_nr, xopts_alloc;
#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
return action == REVERT ? revert_usage : cherry_pick_usage;
}
+static int option_parse_x(const struct option *opt,
+ const char *arg, int unset)
+{
+ if (unset)
+ return 0;
+
+ ALLOC_GROW(xopts, xopts_nr + 1, xopts_alloc);
+ xopts[xopts_nr++] = xstrdup(arg);
+ return 0;
+}
+
static void parse_args(int argc, const char **argv)
{
const char * const * usage_str = revert_or_cherry_pick_usage();
OPT_INTEGER('m', "mainline", &mainline, "parent number"),
OPT_RERERE_AUTOUPDATE(&allow_rerere_auto),
OPT_STRING(0, "strategy", &strategy, "strategy", "merge strategy"),
+ OPT_CALLBACK('X', "strategy-option", &xopts, "option",
+ "option for merge strategy", option_parse_x),
OPT_END(),
OPT_END(),
OPT_END(),
static int get_message(const char *raw_message, struct commit_message *out)
{
const char *encoding;
- const char *p, *abbrev, *eol;
+ const char *abbrev, *subject;
+ int abbrev_len, subject_len;
char *q;
- int abbrev_len, oneline_len;
if (!raw_message)
return -1;
abbrev = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV);
abbrev_len = strlen(abbrev);
- /* Find beginning and end of commit subject. */
- p = out->message;
- while (*p && (*p != '\n' || p[1] != '\n'))
- p++;
- if (*p) {
- p += 2;
- for (eol = p + 1; *eol && *eol != '\n'; eol++)
- ; /* do nothing */
- } else
- eol = p;
- oneline_len = eol - p;
+ subject_len = find_commit_subject(out->message, &subject);
out->parent_label = xmalloc(strlen("parent of ") + abbrev_len +
- strlen("... ") + oneline_len + 1);
+ strlen("... ") + subject_len + 1);
q = out->parent_label;
q = mempcpy(q, "parent of ", strlen("parent of "));
out->label = q;
q = mempcpy(q, abbrev, abbrev_len);
q = mempcpy(q, "... ", strlen("... "));
out->subject = q;
- q = mempcpy(q, p, oneline_len);
+ q = mempcpy(q, subject, subject_len);
*q = '\0';
return 0;
}
struct merge_options o;
struct tree *result, *next_tree, *base_tree, *head_tree;
int clean, index_fd;
+ const char **xopt;
static struct lock_file index_lock;
index_fd = hold_locked_index(&index_lock, 1);
read_cache();
+
init_merge_options(&o);
o.ancestor = base ? base_label : "(empty tree)";
o.branch1 = "HEAD";
next_tree = next ? next->tree : empty_tree();
base_tree = base ? base->tree : empty_tree();
+ for (xopt = xopts; xopt != xopts + xopts_nr; xopt++)
+ parse_merge_opt(&o, *xopt);
+
clean = merge_trees(&o,
head_tree,
next_tree, base_tree, &result);
else
parent = commit->parents->item;
- if (allow_ff && !hashcmp(parent->object.sha1, head))
+ if (allow_ff && parent && !hashcmp(parent->object.sha1, head))
return fast_forward_to(commit->object.sha1, head);
if (parent && parse_commit(parent) < 0)
commit_list_insert(base, &common);
commit_list_insert(next, &remotes);
- res = try_merge_command(strategy, common,
+ res = try_merge_command(strategy, xopts_nr, xopts, common,
sha1_to_hex(head), remotes);
free_commit_list(common);
free_commit_list(remotes);
die("empty commit set passed");
}
+static void read_and_refresh_cache(const char *me)
+{
+ static struct lock_file index_lock;
+ int index_fd = hold_locked_index(&index_lock, 0);
+ if (read_index_preload(&the_index, NULL) < 0)
+ die("git %s: failed to read the index", me);
+ 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))
+ die("git %s: failed to refresh the index", me);
+ }
+ rollback_lock_file(&index_lock);
+}
+
static int revert_or_cherry_pick(int argc, const char **argv)
{
struct rev_info revs;
die("cherry-pick --ff cannot be used with --edit");
}
- if (read_cache() < 0)
- die("git %s: failed to read the index", me);
+ read_and_refresh_cache(me);
prepare_revs(&revs);