mergetool--lib: simplify API usage by removing more global variables

[git.git] / builtin-branch.c

diff --git a/builtin-branch.c b/builtin-branch.c
index 14d4b917e5bb929f40efd3fc5e010cec5d3507de..ca81d725cbac618b7dbb351dc4fb8d3a7f8fef1b 100644 (file)
--- a/builtin-branch.c
+++ b/builtin-branch.c
@@ -121,11 +121,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds)
                        die("Couldn't look up commit object for HEAD");
        }
        for (i = 0; i < argc; i++, strbuf_release(&bname)) {
-               int len = strlen(argv[i]);
-
-               if (interpret_nth_last_branch(argv[i], &bname) != len)
-                       strbuf_add(&bname, argv[i], len);
-
+               strbuf_branchname(&bname, argv[i]);
                if (kinds == REF_LOCAL_BRANCH && !strcmp(head, bname.buf)) {
                        error("Cannot delete the branch '%s' "
                              "which you are currently on.", bname.buf);
@@ -171,7 +167,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds)
                        ret = 1;
                } else {
                        struct strbuf buf = STRBUF_INIT;
-                       printf("Deleted %sbranch %s (%s).\n", remote,
+                       printf("Deleted %sbranch %s (was %s).\n", remote,
                               bname.buf,
                               find_unique_abbrev(sha1, DEFAULT_ABBREV));
                        strbuf_addf(&buf, "branch.%s", bname.buf);
@@ -468,22 +464,27 @@ static void rename_branch(const char *oldname, const char *newname, int force)
        struct strbuf oldref = STRBUF_INIT, newref = STRBUF_INIT, logmsg = STRBUF_INIT;
        unsigned char sha1[20];
        struct strbuf oldsection = STRBUF_INIT, newsection = STRBUF_INIT;
+       int recovery = 0;
 
        if (!oldname)
                die("cannot rename the current branch while not on any.");
 
-       strbuf_addf(&oldref, "refs/heads/%s", oldname);
-
-       if (check_ref_format(oldref.buf))
-               die("Invalid branch name: %s", oldref.buf);
-
-       strbuf_addf(&newref, "refs/heads/%s", newname);
+       if (strbuf_check_branch_ref(&oldref, oldname)) {
+               /*
+                * Bad name --- this could be an attempt to rename a
+                * ref that we used to allow to be created by accident.
+                */
+               if (resolve_ref(oldref.buf, sha1, 1, NULL))
+                       recovery = 1;
+               else
+                       die("Invalid branch name: '%s'", oldname);
+       }
 
-       if (check_ref_format(newref.buf))
-               die("Invalid branch name: %s", newref.buf);
+       if (strbuf_check_branch_ref(&newref, newname))
+               die("Invalid branch name: '%s'", newname);
 
        if (resolve_ref(newref.buf, sha1, 1, NULL) && !force)
-               die("A branch named '%s' already exists.", newname);
+               die("A branch named '%s' already exists.", newref.buf + 11);
 
        strbuf_addf(&logmsg, "Branch: renamed %s to %s",
                 oldref.buf, newref.buf);
@@ -492,6 +493,9 @@ static void rename_branch(const char *oldname, const char *newname, int force)
                die("Branch rename failed");
        strbuf_release(&logmsg);
 
+       if (recovery)
+               warning("Renamed a misnamed branch '%s' away", oldref.buf + 11);
+
        /* no need to pass logmsg here as HEAD didn't really move */
        if (!strcmp(oldname, head) && create_symref("HEAD", newref.buf, NULL))
                die("Branch renamed to %s, but HEAD is not updated!", newname);