Merge branch 'rs/xdiff-merge-overlapping-hunks-for-W-context' into maint

diff --git a/builtin/worktree.c b/builtin/worktree.c
index 96a2834a18be8ee03427cfdd408914ea71d59243..6dcf7bd9d27004277fc568989d58a6236ed6867e 100644 (file)
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -13,8 +13,10 @@
 
 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
 };
 
@@ -95,7 +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))
@@ -192,7 +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;
@@ -262,7 +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, "../..");
@@ -271,7 +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)
@@ -337,9 +338,12 @@ static int add(int ac, const char **av, const char *prefix)
        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;
@@ -360,8 +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)
@@ -459,6 +462,66 @@ 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();
+       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();
+       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[] = {
@@ -467,11 +530,17 @@ int cmd_worktree(int ac, const char **av, const char *prefix)
 
        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);
 }