refs: change signatures of get_packed_refs() and get_loose_refs()

diff --git a/builtin/branch.c b/builtin/branch.c
index 0fe9c4dfe205ee8a41733162f26f0fa96a18e56a..e1e486e4c51194e09df3779be254cb72855d1103 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -115,8 +115,10 @@ static int branch_merged(int kind, const char *name,
                    branch->merge[0] &&
                    branch->merge[0]->dst &&
                    (reference_name =
-                    resolve_ref(branch->merge[0]->dst, sha1, 1, NULL)) != NULL)
+                    resolve_ref(branch->merge[0]->dst, sha1, 1, NULL)) != NULL) {
+                       reference_name = xstrdup(reference_name);
                        reference_rev = lookup_commit_reference(sha1);
+               }
        }
        if (!reference_rev)
                reference_rev = head_rev;
@@ -141,6 +143,7 @@ static int branch_merged(int kind, const char *name,
                                "         '%s', even though it is merged to HEAD."),
                                name, reference_name);
        }
+       free((char *)reference_name);
        return merged;
 }
 
@@ -622,11 +625,49 @@ static int opt_parse_merge_filter(const struct option *opt, const char *arg, int
        return 0;
 }
 
+static const char edit_description[] = "BRANCH_DESCRIPTION";
+
+static int edit_branch_description(const char *branch_name)
+{
+       FILE *fp;
+       int status;
+       struct strbuf buf = STRBUF_INIT;
+       struct strbuf name = STRBUF_INIT;
+
+       read_branch_desc(&buf, branch_name);
+       if (!buf.len || buf.buf[buf.len-1] != '\n')
+               strbuf_addch(&buf, '\n');
+       strbuf_addf(&buf,
+                   "# Please edit the description for the branch\n"
+                   "#   %s\n"
+                   "# Lines starting with '#' will be stripped.\n",
+                   branch_name);
+       fp = fopen(git_path(edit_description), "w");
+       if ((fwrite(buf.buf, 1, buf.len, fp) < buf.len) || fclose(fp)) {
+               strbuf_release(&buf);
+               return error(_("could not write branch description template: %s\n"),
+                            strerror(errno));
+       }
+       strbuf_reset(&buf);
+       if (launch_editor(git_path(edit_description), &buf, NULL)) {
+               strbuf_release(&buf);
+               return -1;
+       }
+       stripspace(&buf, 1);
+
+       strbuf_addf(&name, "branch.%s.description", branch_name);
+       status = git_config_set(name.buf, buf.buf);
+       strbuf_release(&name);
+       strbuf_release(&buf);
+
+       return status;
+}
+
 int cmd_branch(int argc, const char **argv, const char *prefix)
 {
        int delete = 0, rename = 0, force_create = 0, list = 0;
        int verbose = 0, abbrev = -1, detached = 0;
-       int reflog = 0;
+       int reflog = 0, edit_description = 0;
        enum branch_track track;
        int kinds = REF_LOCAL_BRANCH;
        struct commit_list *with_commit = NULL;
@@ -665,6 +706,8 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
                OPT_BIT('M', NULL, &rename, "move/rename a branch, even if target exists", 2),
                OPT_BOOLEAN(0, "list", &list, "list branch names"),
                OPT_BOOLEAN('l', "create-reflog", &reflog, "create the branch's reflog"),
+               OPT_BOOLEAN(0, "edit-description", &edit_description,
+                           "edit the description for the branch"),
                OPT__FORCE(&force_create, "force creation (when already exists)"),
                {
                        OPTION_CALLBACK, 0, "no-merged", &merge_filter_ref,
@@ -704,7 +747,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
        argc = parse_options(argc, argv, prefix, options, builtin_branch_usage,
                             0);
 
-       if (!delete && !rename && !force_create && argc == 0)
+       if (!delete && !rename && !edit_description && argc == 0)
                list = 1;
 
        if (!!delete + !!rename + !!force_create + !!list > 1)
@@ -718,14 +761,26 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
        else if (list)
                return print_ref_list(kinds, detached, verbose, abbrev,
                                      with_commit, argv);
-       else if (rename) {
+       else if (edit_description) {
+               const char *branch_name;
+               if (detached)
+                       die("Cannot give description to detached HEAD");
+               if (!argc)
+                       branch_name = head;
+               else if (argc == 1)
+                       branch_name = argv[0];
+               else
+                       usage_with_options(builtin_branch_usage, options);
+               if (edit_branch_description(branch_name))
+                       return 1;
+       } else if (rename) {
                if (argc == 1)
                        rename_branch(head, argv[0], rename > 1);
                else if (argc == 2)
                        rename_branch(argv[0], argv[1], rename > 1);
                else
                        usage_with_options(builtin_branch_usage, options);
-       } else if (argc <= 2) {
+       } else if (argc > 0 && argc <= 2) {
                if (kinds != REF_LOCAL_BRANCH)
                        die(_("-a and -r options to 'git branch' do not make sense with a branch name"));
                create_branch(head, argv[0], (argc == 2) ? argv[1] : head,