merge: remove drop_save() in favor of remove_merge_branch_state()
[gitweb.git] / builtin / merge.c
index 8f4a5065c209b5b50e02271b48277fff90306338..e9663f027ada2807e62a1ce625d2bffca0332dac 100644 (file)
@@ -6,6 +6,7 @@
  * Based on git-merge.sh by Junio C Hamano.
  */
 
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "parse-options.h"
@@ -36,6 +37,8 @@
 #include "packfile.h"
 #include "tag.h"
 #include "alias.h"
+#include "branch.h"
+#include "commit-reach.h"
 
 #define DEFAULT_TWOHEAD (1<<0)
 #define DEFAULT_OCTOPUS (1<<1)
@@ -127,7 +130,7 @@ static int option_read_message(struct parse_opt_ctx_t *ctx,
                ctx->argc--;
                arg = *++ctx->argv;
        } else
-               return opterror(opt, "requires a value", 0);
+               return error(_("option `%s' requires a value"), opt->long_name);
 
        if (buf->len)
                strbuf_addch(buf, '\n');
@@ -223,6 +226,7 @@ static int option_parse_x(const struct option *opt,
 static int option_parse_n(const struct option *opt,
                          const char *arg, int unset)
 {
+       BUG_ON_OPT_ARG(arg);
        show_diffstat = unset;
        return 0;
 }
@@ -276,14 +280,6 @@ static struct option builtin_merge_options[] = {
        OPT_END()
 };
 
-/* Cleans up metadata that is uninteresting after a succeeded merge. */
-static void drop_save(void)
-{
-       unlink(git_path_merge_head(the_repository));
-       unlink(git_path_merge_msg(the_repository));
-       unlink(git_path_merge_mode(the_repository));
-}
-
 static int save_state(struct object_id *stash)
 {
        int len;
@@ -377,7 +373,7 @@ static void finish_up_to_date(const char *msg)
 {
        if (verbosity >= 0)
                printf("%s%s\n", squash ? _(" (nothing to squash)") : "", msg);
-       drop_save();
+       remove_merge_branch_state(the_repository);
 }
 
 static void squash_message(struct commit *commit, struct commit_list *remoteheads)
@@ -389,7 +385,7 @@ static void squash_message(struct commit *commit, struct commit_list *remotehead
 
        printf(_("Squash commit -- not updating HEAD\n"));
 
-       init_revisions(&rev, NULL);
+       repo_init_revisions(the_repository, &rev, NULL);
        rev.ignore_merges = 1;
        rev.commit_format = CMIT_FMT_MEDIUM;
 
@@ -452,7 +448,7 @@ static void finish(struct commit *head_commit,
        }
        if (new_head && show_diffstat) {
                struct diff_options opts;
-               diff_setup(&opts);
+               repo_diff_setup(the_repository, &opts);
                opts.stat_width = -1; /* use full terminal width */
                opts.stat_graph_width = -1; /* respect statGraphWidth config */
                opts.output_format |=
@@ -576,7 +572,7 @@ static void parse_branch_merge_options(char *bmo)
        argc = split_cmdline(bmo, &argv);
        if (argc < 0)
                die(_("Bad branch.%s.mergeoptions string: %s"), branch,
-                   split_cmdline_strerror(argc));
+                   _(split_cmdline_strerror(argc)));
        REALLOC_ARRAY(argv, argc + 2);
        MOVE_ARRAY(argv + 1, argv, argc + 1);
        argc++;
@@ -700,7 +696,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
                        return 2;
                }
 
-               init_merge_options(&o);
+               init_merge_options(&o, the_repository);
                if (!strcmp(strategy, "subtree"))
                        o.subtree_shift = "";
 
@@ -728,8 +724,9 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
                        die(_("unable to write %s"), get_index_file());
                return clean ? 0 : 1;
        } else {
-               return try_merge_command(strategy, xopts_nr, xopts,
-                                               common, head_arg, remoteheads);
+               return try_merge_command(the_repository,
+                                        strategy, xopts_nr, xopts,
+                                        common, head_arg, remoteheads);
        }
 }
 
@@ -854,7 +851,7 @@ static int merge_trivial(struct commit *head, struct commit_list *remoteheads)
                        &result_commit, NULL, sign_commit))
                die(_("failed to write commit object"));
        finish(head, remoteheads, &result_commit, "In-index merge");
-       drop_save();
+       remove_merge_branch_state(the_repository);
        return 0;
 }
 
@@ -881,7 +878,7 @@ static int finish_automerge(struct commit *head,
        strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy);
        finish(head, remoteheads, &result_commit, buf.buf);
        strbuf_release(&buf);
-       drop_save();
+       remove_merge_branch_state(the_repository);
        return 0;
 }
 
@@ -894,11 +891,11 @@ static int suggest_conflicts(void)
        filename = git_path_merge_msg(the_repository);
        fp = xfopen(filename, "a");
 
-       append_conflicts_hint(&msgbuf);
+       append_conflicts_hint(&the_index, &msgbuf);
        fputs(msgbuf.buf, fp);
        strbuf_release(&msgbuf);
        fclose(fp);
-       rerere(allow_rerere_auto);
+       repo_rerere(the_repository, allow_rerere_auto);
        printf(_("Automatic merge failed; "
                        "fix conflicts and then commit the result.\n"));
        return 1;
@@ -910,7 +907,7 @@ static int evaluate_result(void)
        struct rev_info rev;
 
        /* Check how many files differ. */
-       init_revisions(&rev, "");
+       repo_init_revisions(the_repository, &rev, "");
        setup_revisions(0, NULL, &rev, NULL);
        rev.diffopt.output_format |=
                DIFF_FORMAT_CALLBACK;
@@ -1189,7 +1186,7 @@ static int merging_a_throwaway_tag(struct commit *commit)
        tag_ref = xstrfmt("refs/tags/%s",
                          ((struct tag *)merge_remote_util(commit)->obj)->tag);
        if (!read_ref(tag_ref, &oid) &&
-           !oidcmp(&oid, &merge_remote_util(commit)->obj->oid))
+           oideq(&oid, &merge_remote_util(commit)->obj->oid))
                is_throwaway_tag = 0;
        else
                is_throwaway_tag = 1;
@@ -1334,6 +1331,10 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
                        die(_("%s - not something we can merge"), argv[0]);
                if (remoteheads->next)
                        die(_("Can merge only exactly one commit into empty head"));
+
+               if (verify_signatures)
+                       verify_merge_signature(remoteheads->item, verbosity);
+
                remote_head_oid = &remoteheads->item->object.oid;
                read_empty(remote_head_oid, 0);
                update_ref("initial pull", "HEAD", remote_head_oid, NULL, 0,
@@ -1355,31 +1356,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 
        if (verify_signatures) {
                for (p = remoteheads; p; p = p->next) {
-                       struct commit *commit = p->item;
-                       char hex[GIT_MAX_HEXSZ + 1];
-                       struct signature_check signature_check;
-                       memset(&signature_check, 0, sizeof(signature_check));
-
-                       check_commit_signature(commit, &signature_check);
-
-                       find_unique_abbrev_r(hex, &commit->object.oid, DEFAULT_ABBREV);
-                       switch (signature_check.result) {
-                       case 'G':
-                               break;
-                       case 'U':
-                               die(_("Commit %s has an untrusted GPG signature, "
-                                     "allegedly by %s."), hex, signature_check.signer);
-                       case 'B':
-                               die(_("Commit %s has a bad GPG signature "
-                                     "allegedly by %s."), hex, signature_check.signer);
-                       default: /* 'N' */
-                               die(_("Commit %s does not have a GPG signature."), hex);
-                       }
-                       if (verbosity >= 0 && signature_check.result == 'G')
-                               printf(_("Commit %s has a good GPG signature by %s\n"),
-                                      hex, signature_check.signer);
-
-                       signature_check_clear(&signature_check);
+                       verify_merge_signature(p->item, verbosity);
                }
        }
 
@@ -1448,7 +1425,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
                goto done;
        } else if (fast_forward != FF_NO && !remoteheads->next &&
                        !common->next &&
-                       !oidcmp(&common->item->object.oid, &head_commit->object.oid)) {
+                       oideq(&common->item->object.oid, &head_commit->object.oid)) {
                /* Again the most common case of merging one remote. */
                struct strbuf msg = STRBUF_INIT;
                struct commit *commit;
@@ -1470,7 +1447,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
                        goto done;
                }
 
-               if (checkout_fast_forward(&head_commit->object.oid,
+               if (checkout_fast_forward(the_repository,
+                                         &head_commit->object.oid,
                                          &commit->object.oid,
                                          overwrite_ignore)) {
                        ret = 1;
@@ -1478,7 +1456,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
                }
 
                finish(head_commit, remoteheads, &commit->object.oid, msg.buf);
-               drop_save();
+               remove_merge_branch_state(the_repository);
                goto done;
        } else if (!remoteheads->next && common->next)
                ;
@@ -1521,7 +1499,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
                         * HEAD^^" would be missed.
                         */
                        common_one = get_merge_bases(head_commit, j->item);
-                       if (oidcmp(&common_one->item->object.oid, &j->item->object.oid)) {
+                       if (!oideq(&common_one->item->object.oid, &j->item->object.oid)) {
                                up_to_date = 0;
                                break;
                        }