packaging: Add contrib installation

[platform/upstream/git.git] / merge.c

diff --git a/merge.c b/merge.c
index f06a477..5fb88af 100644 (file)
--- a/merge.c
+++ b/merge.c
@@ -11,73 +11,41 @@
 
 static const char *merge_argument(struct commit *commit)
 {
-       if (commit)
-               return oid_to_hex(&commit->object.oid);
-       else
-               return EMPTY_TREE_SHA1_HEX;
+       return oid_to_hex(commit ? &commit->object.oid : the_hash_algo->empty_tree);
 }
 
-int index_has_changes(struct strbuf *sb)
-{
-       struct object_id head;
-       int i;
-
-       if (!get_oid_tree("HEAD", &head)) {
-               struct diff_options opt;
-
-               diff_setup(&opt);
-               opt.flags.exit_with_status = 1;
-               if (!sb)
-                       opt.flags.quick = 1;
-               do_diff_cache(&head, &opt);
-               diffcore_std(&opt);
-               for (i = 0; sb && i < diff_queued_diff.nr; i++) {
-                       if (i)
-                               strbuf_addch(sb, ' ');
-                       strbuf_addstr(sb, diff_queued_diff.queue[i]->two->path);
-               }
-               diff_flush(&opt);
-               return opt.flags.has_changes != 0;
-       } else {
-               for (i = 0; sb && i < active_nr; i++) {
-                       if (i)
-                               strbuf_addch(sb, ' ');
-                       strbuf_addstr(sb, active_cache[i]->name);
-               }
-               return !!active_nr;
-       }
-}
-
-int try_merge_command(const char *strategy, size_t xopts_nr,
+int try_merge_command(struct repository *r,
+                     const char *strategy, size_t xopts_nr,
                      const char **xopts, struct commit_list *common,
                      const char *head_arg, struct commit_list *remotes)
 {
-       struct argv_array args = ARGV_ARRAY_INIT;
+       struct strvec args = STRVEC_INIT;
        int i, ret;
        struct commit_list *j;
 
-       argv_array_pushf(&args, "merge-%s", strategy);
+       strvec_pushf(&args, "merge-%s", strategy);
        for (i = 0; i < xopts_nr; i++)
-               argv_array_pushf(&args, "--%s", xopts[i]);
+               strvec_pushf(&args, "--%s", xopts[i]);
        for (j = common; j; j = j->next)
-               argv_array_push(&args, merge_argument(j->item));
-       argv_array_push(&args, "--");
-       argv_array_push(&args, head_arg);
+               strvec_push(&args, merge_argument(j->item));
+       strvec_push(&args, "--");
+       strvec_push(&args, head_arg);
        for (j = remotes; j; j = j->next)
-               argv_array_push(&args, merge_argument(j->item));
+               strvec_push(&args, merge_argument(j->item));
 
-       ret = run_command_v_opt(args.argv, RUN_GIT_CMD);
-       argv_array_clear(&args);
+       ret = run_command_v_opt(args.v, RUN_GIT_CMD);
+       strvec_clear(&args);
 
-       discard_cache();
-       if (read_cache() < 0)
+       discard_index(r->index);
+       if (repo_read_index(r) < 0)
                die(_("failed to read the cache"));
-       resolve_undo_clear();
+       resolve_undo_clear_index(r->index);
 
        return ret;
 }
 
-int checkout_fast_forward(const struct object_id *head,
+int checkout_fast_forward(struct repository *r,
+                         const struct object_id *head,
                          const struct object_id *remote,
                          int overwrite_ignore)
 {
@@ -88,29 +56,13 @@ int checkout_fast_forward(const struct object_id *head,
        struct dir_struct dir;
        struct lock_file lock_file = LOCK_INIT;
 
-       refresh_cache(REFRESH_QUIET);
+       refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
 
-       if (hold_locked_index(&lock_file, LOCK_REPORT_ON_ERROR) < 0)
+       if (repo_hold_locked_index(r, &lock_file, LOCK_REPORT_ON_ERROR) < 0)
                return -1;
 
        memset(&trees, 0, sizeof(trees));
-       memset(&opts, 0, sizeof(opts));
        memset(&t, 0, sizeof(t));
-       if (overwrite_ignore) {
-               memset(&dir, 0, sizeof(dir));
-               dir.flags |= DIR_SHOW_IGNORED;
-               setup_standard_excludes(&dir);
-               opts.dir = &dir;
-       }
-
-       opts.head_idx = 1;
-       opts.src_index = &the_index;
-       opts.dst_index = &the_index;
-       opts.update = 1;
-       opts.verbose_update = 1;
-       opts.merge = 1;
-       opts.fn = twoway_merge;
-       setup_unpack_trees_porcelain(&opts, "merge");
 
        trees[nr_trees] = parse_tree_indirect(head);
        if (!trees[nr_trees++]) {
@@ -126,11 +78,34 @@ int checkout_fast_forward(const struct object_id *head,
                parse_tree(trees[i]);
                init_tree_desc(t+i, trees[i]->buffer, trees[i]->size);
        }
+
+       memset(&opts, 0, sizeof(opts));
+       dir_init(&dir);
+       if (overwrite_ignore) {
+               dir.flags |= DIR_SHOW_IGNORED;
+               setup_standard_excludes(&dir);
+               opts.dir = &dir;
+       }
+
+       opts.head_idx = 1;
+       opts.src_index = r->index;
+       opts.dst_index = r->index;
+       opts.update = 1;
+       opts.verbose_update = 1;
+       opts.merge = 1;
+       opts.fn = twoway_merge;
+       init_checkout_metadata(&opts.meta, NULL, remote, NULL);
+       setup_unpack_trees_porcelain(&opts, "merge");
+
        if (unpack_trees(nr_trees, t, &opts)) {
                rollback_lock_file(&lock_file);
+               clear_unpack_trees_porcelain(&opts);
                return -1;
        }
-       if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
+       dir_clear(&dir);
+       clear_unpack_trees_porcelain(&opts);
+
+       if (write_locked_index(r->index, &lock_file, COMMIT_LOCK))
                return error(_("unable to write new index file"));
        return 0;
 }