t4201: make use of abbreviation in the test more robust
[gitweb.git] / builtin / worktree.c
index 38b56096bd3b914d1128e0bebb5c964a3cdd1b74..831fe058a53da95643b1a93038f576d5bffea7ef 100644 (file)
 
 static const char * const worktree_usage[] = {
        N_("git worktree add [<options>] <path> [<branch>]"),
-       N_("git worktree prune [<options>]"),
        N_("git worktree list [<options>]"),
+       N_("git worktree lock [<options>] <path>"),
+       N_("git worktree prune [<options>]"),
+       N_("git worktree unlock <path>"),
        NULL
 };
 
 struct add_opts {
        int force;
        int detach;
+       int checkout;
        const char *new_branch;
        int force_new_branch;
 };
@@ -94,7 +97,7 @@ static void prune_worktrees(void)
        if (!dir)
                return;
        while ((d = readdir(dir)) != NULL) {
-               if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+               if (is_dot_or_dotdot(d->d_name))
                        continue;
                strbuf_reset(&reason);
                if (!prune_worktree(d->d_name, &reason))
@@ -109,7 +112,7 @@ static void prune_worktrees(void)
                if (ret < 0 && errno == ENOTDIR)
                        ret = unlink(path.buf);
                if (ret)
-                       error(_("failed to remove: %s"), strerror(errno));
+                       error_errno(_("failed to remove '%s'"), path.buf);
        }
        closedir(dir);
        if (!show_only)
@@ -122,9 +125,9 @@ static int prune(int ac, const char **av, const char *prefix)
 {
        struct option options[] = {
                OPT__DRY_RUN(&show_only, N_("do not remove, show only")),
-               OPT__VERBOSE(&verbose, N_("report pruned objects")),
+               OPT__VERBOSE(&verbose, N_("report pruned working trees")),
                OPT_EXPIRY_DATE(0, "expire", &expire,
-                               N_("expire objects older than <time>")),
+                               N_("expire working trees older than <time>")),
                OPT_END()
        };
 
@@ -191,7 +194,7 @@ static int add_worktree(const char *path, const char *refname,
        struct strbuf sb = STRBUF_INIT;
        const char *name;
        struct stat st;
-       struct child_process cp;
+       struct child_process cp = CHILD_PROCESS_INIT;
        struct argv_array child_env = ARGV_ARRAY_INIT;
        int counter = 0, len, ret;
        struct strbuf symref = STRBUF_INIT;
@@ -204,7 +207,7 @@ static int add_worktree(const char *path, const char *refname,
        if (!opts->detach && !strbuf_check_branch_ref(&symref, refname) &&
                 ref_exists(symref.buf)) { /* it's a branch */
                if (!opts->force)
-                       die_if_checked_out(symref.buf);
+                       die_if_checked_out(symref.buf, 0);
        } else { /* must be a commit */
                commit = lookup_commit_reference_by_name(refname);
                if (!commit)
@@ -261,7 +264,7 @@ static int add_worktree(const char *path, const char *refname,
         */
        strbuf_reset(&sb);
        strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
-       write_file(sb.buf, "0000000000000000000000000000000000000000");
+       write_file(sb.buf, "%s", sha1_to_hex(null_sha1));
        strbuf_reset(&sb);
        strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
        write_file(sb.buf, "../..");
@@ -270,7 +273,6 @@ static int add_worktree(const char *path, const char *refname,
 
        argv_array_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf);
        argv_array_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path);
-       memset(&cp, 0, sizeof(cp));
        cp.git_cmd = 1;
 
        if (commit)
@@ -284,18 +286,22 @@ static int add_worktree(const char *path, const char *refname,
        if (ret)
                goto done;
 
-       cp.argv = NULL;
-       argv_array_clear(&cp.args);
-       argv_array_pushl(&cp.args, "reset", "--hard", NULL);
-       cp.env = child_env.argv;
-       ret = run_command(&cp);
-       if (!ret) {
-               is_junk = 0;
-               free(junk_work_tree);
-               free(junk_git_dir);
-               junk_work_tree = NULL;
-               junk_git_dir = NULL;
+       if (opts->checkout) {
+               cp.argv = NULL;
+               argv_array_clear(&cp.args);
+               argv_array_pushl(&cp.args, "reset", "--hard", NULL);
+               cp.env = child_env.argv;
+               ret = run_command(&cp);
+               if (ret)
+                       goto done;
        }
+
+       is_junk = 0;
+       free(junk_work_tree);
+       free(junk_git_dir);
+       junk_work_tree = NULL;
+       junk_git_dir = NULL;
+
 done:
        strbuf_reset(&sb);
        strbuf_addf(&sb, "%s/locked", sb_repo.buf);
@@ -320,19 +326,24 @@ static int add(int ac, const char **av, const char *prefix)
                OPT_STRING('B', NULL, &new_branch_force, N_("branch"),
                           N_("create or reset a branch")),
                OPT_BOOL(0, "detach", &opts.detach, N_("detach HEAD at named commit")),
+               OPT_BOOL(0, "checkout", &opts.checkout, N_("populate the new working tree")),
                OPT_END()
        };
 
        memset(&opts, 0, sizeof(opts));
+       opts.checkout = 1;
        ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
        if (!!opts.detach + !!opts.new_branch + !!new_branch_force > 1)
                die(_("-b, -B, and --detach are mutually exclusive"));
        if (ac < 1 || ac > 2)
                usage_with_options(worktree_usage, options);
 
-       path = prefix ? prefix_filename(prefix, strlen(prefix), av[0]) : av[0];
+       path = prefix_filename(prefix, strlen(prefix), av[0]);
        branch = ac < 2 ? "HEAD" : av[1];
 
+       if (!strcmp(branch, "-"))
+               branch = "@{-1}";
+
        opts.force_new_branch = !!new_branch_force;
        if (opts.force_new_branch) {
                struct strbuf symref = STRBUF_INIT;
@@ -342,7 +353,7 @@ static int add(int ac, const char **av, const char *prefix)
                if (!opts.force &&
                    !strbuf_check_branch_ref(&symref, opts.new_branch) &&
                    ref_exists(symref.buf))
-                       die_if_checked_out(symref.buf);
+                       die_if_checked_out(symref.buf, 0);
                strbuf_release(&symref);
        }
 
@@ -353,8 +364,7 @@ static int add(int ac, const char **av, const char *prefix)
        }
 
        if (opts.new_branch) {
-               struct child_process cp;
-               memset(&cp, 0, sizeof(cp));
+               struct child_process cp = CHILD_PROCESS_INIT;
                cp.git_cmd = 1;
                argv_array_push(&cp.args, "branch");
                if (opts.force_new_branch)
@@ -378,7 +388,7 @@ static void show_worktree_porcelain(struct worktree *wt)
                printf("HEAD %s\n", sha1_to_hex(wt->head_sha1));
                if (wt->is_detached)
                        printf("detached\n");
-               else
+               else if (wt->head_ref)
                        printf("branch %s\n", wt->head_ref);
        }
        printf("\n");
@@ -396,10 +406,12 @@ static void show_worktree(struct worktree *wt, int path_maxlen, int abbrev_len)
        else {
                strbuf_addf(&sb, "%-*s ", abbrev_len,
                                find_unique_abbrev(wt->head_sha1, DEFAULT_ABBREV));
-               if (!wt->is_detached)
+               if (wt->is_detached)
+                       strbuf_addstr(&sb, "(detached HEAD)");
+               else if (wt->head_ref)
                        strbuf_addf(&sb, "[%s]", shorten_unambiguous_ref(wt->head_ref, 0));
                else
-                       strbuf_addstr(&sb, "(detached HEAD)");
+                       strbuf_addstr(&sb, "(error)");
        }
        printf("%s\n", sb.buf);
 
@@ -435,7 +447,7 @@ static int list(int ac, const char **av, const char *prefix)
        if (ac)
                usage_with_options(worktree_usage, options);
        else {
-               struct worktree **worktrees = get_worktrees();
+               struct worktree **worktrees = get_worktrees(GWT_SORT_LINKED);
                int path_maxlen = 0, abbrev = DEFAULT_ABBREV, i;
 
                if (!porcelain)
@@ -452,19 +464,87 @@ static int list(int ac, const char **av, const char *prefix)
        return 0;
 }
 
+static int lock_worktree(int ac, const char **av, const char *prefix)
+{
+       const char *reason = "", *old_reason;
+       struct option options[] = {
+               OPT_STRING(0, "reason", &reason, N_("string"),
+                          N_("reason for locking")),
+               OPT_END()
+       };
+       struct worktree **worktrees, *wt;
+
+       ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
+       if (ac != 1)
+               usage_with_options(worktree_usage, options);
+
+       worktrees = get_worktrees(0);
+       wt = find_worktree(worktrees, prefix, av[0]);
+       if (!wt)
+               die(_("'%s' is not a working tree"), av[0]);
+       if (is_main_worktree(wt))
+               die(_("The main working tree cannot be locked or unlocked"));
+
+       old_reason = is_worktree_locked(wt);
+       if (old_reason) {
+               if (*old_reason)
+                       die(_("'%s' is already locked, reason: %s"),
+                           av[0], old_reason);
+               die(_("'%s' is already locked"), av[0]);
+       }
+
+       write_file(git_common_path("worktrees/%s/locked", wt->id),
+                  "%s", reason);
+       free_worktrees(worktrees);
+       return 0;
+}
+
+static int unlock_worktree(int ac, const char **av, const char *prefix)
+{
+       struct option options[] = {
+               OPT_END()
+       };
+       struct worktree **worktrees, *wt;
+       int ret;
+
+       ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
+       if (ac != 1)
+               usage_with_options(worktree_usage, options);
+
+       worktrees = get_worktrees(0);
+       wt = find_worktree(worktrees, prefix, av[0]);
+       if (!wt)
+               die(_("'%s' is not a working tree"), av[0]);
+       if (is_main_worktree(wt))
+               die(_("The main working tree cannot be locked or unlocked"));
+       if (!is_worktree_locked(wt))
+               die(_("'%s' is not locked"), av[0]);
+       ret = unlink_or_warn(git_common_path("worktrees/%s/locked", wt->id));
+       free_worktrees(worktrees);
+       return ret;
+}
+
 int cmd_worktree(int ac, const char **av, const char *prefix)
 {
        struct option options[] = {
                OPT_END()
        };
 
+       git_config(git_default_config, NULL);
+
        if (ac < 2)
                usage_with_options(worktree_usage, options);
+       if (!prefix)
+               prefix = "";
        if (!strcmp(av[1], "add"))
                return add(ac - 1, av + 1, prefix);
        if (!strcmp(av[1], "prune"))
                return prune(ac - 1, av + 1, prefix);
        if (!strcmp(av[1], "list"))
                return list(ac - 1, av + 1, prefix);
+       if (!strcmp(av[1], "lock"))
+               return lock_worktree(ac - 1, av + 1, prefix);
+       if (!strcmp(av[1], "unlock"))
+               return unlock_worktree(ac - 1, av + 1, prefix);
        usage_with_options(worktree_usage, options);
 }