pretty: recalculate duplicate short hashes

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 161f1636a65805c255a9cb25e6a2be4e633c07ca..899bd8db0b50d8d8a1cb00a9432692d9b898980d 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -242,7 +242,6 @@ static int checkout_paths(const struct checkout_opts *opts,
        struct checkout state;
        static char *ps_matched;
        unsigned char rev[20];
-       int flag;
        struct commit *head;
        int errs = 0;
        struct lock_file *lock_file;
@@ -277,7 +276,7 @@ static int checkout_paths(const struct checkout_opts *opts,
 
        hold_locked_index(lock_file, 1);
        if (read_cache_preload(&opts->pathspec) < 0)
-               return error(_("corrupt index file"));
+               return error(_("index file corrupt"));
 
        if (opts->source_tree)
                read_tree_some(opts->source_tree, &opts->pathspec);
@@ -375,7 +374,7 @@ static int checkout_paths(const struct checkout_opts *opts,
        if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
                die(_("unable to write new index file"));
 
-       read_ref_full("HEAD", 0, rev, &flag);
+       read_ref_full("HEAD", 0, rev, NULL);
        head = lookup_commit_reference_gently(rev, 1);
 
        errs |= post_checkout_hook(head, head, 0);
@@ -471,7 +470,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
 
        hold_locked_index(lock_file, 1);
        if (read_cache_preload(NULL) < 0)
-               return error(_("corrupt index file"));
+               return error(_("index file corrupt"));
 
        resolve_undo_clear();
        if (opts->force) {
@@ -568,10 +567,13 @@ static int merge_working_tree(const struct checkout_opts *opts,
                        o.ancestor = old->name;
                        o.branch1 = new->name;
                        o.branch2 = "local";
-                       merge_trees(&o, new->commit->tree, work,
+                       ret = merge_trees(&o, new->commit->tree, work,
                                old->commit->tree, &result);
+                       if (ret < 0)
+                               exit(128);
                        ret = reset_tree(new->commit->tree, opts, 0,
                                         writeout_error);
+                       strbuf_release(&o.obuf);
                        if (ret)
                                return ret;
                }
@@ -629,7 +631,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
                        }
                }
                else
-                       create_branch(old->name, opts->new_branch, new->name,
+                       create_branch(opts->new_branch, new->name,
                                      opts->new_branch_force ? 1 : 0,
                                      opts->new_branch_log,
                                      opts->new_branch_force ? 1 : 0,
@@ -656,7 +658,8 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
                update_ref(msg.buf, "HEAD", new->commit->object.oid.hash, NULL,
                           REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);
                if (!opts->quiet) {
-                       if (old->path && advice_detached_head)
+                       if (old->path &&
+                           advice_detached_head && !opts->force_detach)
                                detach_advice(new->name);
                        describe_detached_head(_("HEAD is now at"), new->commit);
                }
@@ -704,8 +707,7 @@ static int add_pending_uninteresting_ref(const char *refname,
 static void describe_one_orphan(struct strbuf *sb, struct commit *commit)
 {
        strbuf_addstr(sb, "  ");
-       strbuf_addstr(sb,
-               find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV));
+       strbuf_add_unique_abbrev(sb, commit->object.oid.hash, DEFAULT_ABBREV);
        strbuf_addch(sb, ' ');
        if (!parse_commit(commit))
                pp_commit_easy(CMIT_FMT_ONELINE, commit, sb);
@@ -983,7 +985,7 @@ static int parse_branchname_arg(int argc, const char **argv,
                int recover_with_dwim = dwim_new_local_branch_ok;
 
                if (!has_dash_dash &&
-                   (check_filename(NULL, arg) || !no_wildcard(arg)))
+                   (check_filename(opts->prefix, arg) || !no_wildcard(arg)))
                        recover_with_dwim = 0;
                /*
                 * Accept "git checkout foo" and "git checkout foo --"
@@ -1036,7 +1038,7 @@ static int parse_branchname_arg(int argc, const char **argv,
 
        if (!*source_tree)                   /* case (1): want a tree */
                die(_("reference is not a tree: %s"), arg);
-       if (!has_dash_dash) {/* case (3).(d) -> (1) */
+       if (!has_dash_dash) {   /* case (3).(d) -> (1) */
                /*
                 * Do not complain the most common case
                 *      git checkout branch
@@ -1044,7 +1046,7 @@ static int parse_branchname_arg(int argc, const char **argv,
                 * it would be extremely annoying.
                 */
                if (argc)
-                       verify_non_filename(NULL, arg);
+                       verify_non_filename(opts->prefix, arg);
        } else {
                argcount++;
                argv++;
@@ -1111,7 +1113,7 @@ static int checkout_branch(struct checkout_opts *opts,
                char *head_ref = resolve_refdup("HEAD", 0, sha1, &flag);
                if (head_ref &&
                    (!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path)))
-                       die_if_checked_out(new->path);
+                       die_if_checked_out(new->path, 1);
                free(head_ref);
        }
 
@@ -1139,7 +1141,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                OPT_STRING('B', NULL, &opts.new_branch_force, N_("branch"),
                           N_("create/reset and checkout a branch")),
                OPT_BOOL('l', NULL, &opts.new_branch_log, N_("create reflog for new branch")),
-               OPT_BOOL(0, "detach", &opts.force_detach, N_("detach the HEAD at named commit")),
+               OPT_BOOL(0, "detach", &opts.force_detach, N_("detach HEAD at named commit")),
                OPT_SET_INT('t', "track",  &opts.track, N_("set upstream info for new branch"),
                        BRANCH_TRACK_EXPLICIT),
                OPT_STRING(0, "orphan", &opts.new_orphan_branch, N_("new-branch"), N_("new unparented branch")),