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authorJunio C Hamano <gitster@pobox.com>2016-08-10 19:33:20 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-08-10 19:33:20 (GMT)
commit1a5f1a3f256a53014e5b832e1281d952ec5f9ef7 (patch)
tree90cdcd99d55b8970bd127078415b26f76524aa11 /builtin/am.c
parent7a3ea666331cd6cf8d9a7a15aafc33459b8c571c (diff)
parent6999bc7074c2a8d7605c3ad24bd4e5371a6df71c (diff)
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Merge branch 'js/am-3-merge-recursive-direct'
"git am -3" calls "git merge-recursive" when it needs to fall back to a three-way merge; this call has been turned into an internal subroutine call instead of spawning a separate subprocess. * js/am-3-merge-recursive-direct: merge-recursive: flush output buffer even when erroring out merge_trees(): ensure that the callers release output buffer merge-recursive: offer an option to retain the output in 'obuf' merge-recursive: write the commit title in one go merge-recursive: flush output buffer before printing error messages am -3: use merge_recursive() directly again merge-recursive: switch to returning errors instead of dying merge-recursive: handle return values indicating errors merge-recursive: allow write_tree_from_memory() to error out merge-recursive: avoid returning a wholesale struct merge_recursive: abort properly upon errors prepare the builtins for a libified merge_recursive() merge-recursive: clarify code in was_tracked() die(_("BUG")): avoid translating bug messages die("bug"): report bugs consistently t5520: verify that `pull --rebase` shows the helpful advice when failing
Diffstat (limited to 'builtin/am.c')
-rw-r--r--builtin/am.c62
1 files changed, 22 insertions, 40 deletions
diff --git a/builtin/am.c b/builtin/am.c
index 8aa9b5b..739b34d 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1579,47 +1579,18 @@ static int build_fake_ancestor(const struct am_state *state, const char *index_f
}
/**
- * Do the three-way merge using fake ancestor, their tree constructed
- * from the fake ancestor and the postimage of the patch, and our
- * state.
- */
-static int run_fallback_merge_recursive(const struct am_state *state,
- unsigned char *orig_tree,
- unsigned char *our_tree,
- unsigned char *their_tree)
-{
- struct child_process cp = CHILD_PROCESS_INIT;
- int status;
-
- cp.git_cmd = 1;
-
- argv_array_pushf(&cp.env_array, "GITHEAD_%s=%.*s",
- sha1_to_hex(their_tree), linelen(state->msg), state->msg);
- if (state->quiet)
- argv_array_push(&cp.env_array, "GIT_MERGE_VERBOSITY=0");
-
- argv_array_push(&cp.args, "merge-recursive");
- argv_array_push(&cp.args, sha1_to_hex(orig_tree));
- argv_array_push(&cp.args, "--");
- argv_array_push(&cp.args, sha1_to_hex(our_tree));
- argv_array_push(&cp.args, sha1_to_hex(their_tree));
-
- status = run_command(&cp) ? (-1) : 0;
- discard_cache();
- read_cache();
- return status;
-}
-
-/**
* Attempt a threeway merge, using index_path as the temporary index.
*/
static int fall_back_threeway(const struct am_state *state, const char *index_path)
{
- unsigned char orig_tree[GIT_SHA1_RAWSZ], their_tree[GIT_SHA1_RAWSZ],
- our_tree[GIT_SHA1_RAWSZ];
+ struct object_id orig_tree, their_tree, our_tree;
+ const struct object_id *bases[1] = { &orig_tree };
+ struct merge_options o;
+ struct commit *result;
+ char *their_tree_name;
- if (get_sha1("HEAD", our_tree) < 0)
- hashcpy(our_tree, EMPTY_TREE_SHA1_BIN);
+ if (get_oid("HEAD", &our_tree) < 0)
+ hashcpy(our_tree.hash, EMPTY_TREE_SHA1_BIN);
if (build_fake_ancestor(state, index_path))
return error("could not build fake ancestor");
@@ -1627,7 +1598,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
discard_cache();
read_cache_from(index_path);
- if (write_index_as_tree(orig_tree, &the_index, index_path, 0, NULL))
+ if (write_index_as_tree(orig_tree.hash, &the_index, index_path, 0, NULL))
return error(_("Repository lacks necessary blobs to fall back on 3-way merge."));
say(state, stdout, _("Using index info to reconstruct a base tree..."));
@@ -1643,7 +1614,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
init_revisions(&rev_info, NULL);
rev_info.diffopt.output_format = DIFF_FORMAT_NAME_STATUS;
diff_opt_parse(&rev_info.diffopt, &diff_filter_str, 1, rev_info.prefix);
- add_pending_sha1(&rev_info, "HEAD", our_tree, 0);
+ add_pending_sha1(&rev_info, "HEAD", our_tree.hash, 0);
diff_setup_done(&rev_info.diffopt);
run_diff_index(&rev_info, 1);
}
@@ -1652,7 +1623,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
return error(_("Did you hand edit your patch?\n"
"It does not apply to blobs recorded in its index."));
- if (write_index_as_tree(their_tree, &the_index, index_path, 0, NULL))
+ if (write_index_as_tree(their_tree.hash, &the_index, index_path, 0, NULL))
return error("could not write tree");
say(state, stdout, _("Falling back to patching base and 3-way merge..."));
@@ -1668,11 +1639,22 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
* changes.
*/
- if (run_fallback_merge_recursive(state, orig_tree, our_tree, their_tree)) {
+ init_merge_options(&o);
+
+ o.branch1 = "HEAD";
+ their_tree_name = xstrfmt("%.*s", linelen(state->msg), state->msg);
+ o.branch2 = their_tree_name;
+
+ if (state->quiet)
+ o.verbosity = 0;
+
+ if (merge_recursive_generic(&o, &our_tree, &their_tree, 1, bases, &result)) {
rerere(state->allow_rerere_autoupdate);
+ free(their_tree_name);
return error(_("Failed to merge in the changes."));
}
+ free(their_tree_name);
return 0;
}