revert(3p/git): Revert merge of git upstream at v2.26.2 r/852

This causes cgit to serve error pages, which is undesirable.

This reverts commit 5229c9b232de5bfa959ad6ebbb4c8192ac513352, reversing
changes made to f2b211131f2347342dde63975b09cf603149f1a3.

1 files changed, 59 insertions, 74 deletions

diff --git a/third_party/git/builtin/stash.c b/third_party/git/builtin/stash.c
index 78af6ce56431..b5a301f24d7a 100644
--- a/third_party/git/builtin/stash.c
+++ b/third_party/git/builtin/stash.c
@@ -27,7 +27,6 @@ static const char * const git_stash_usage[] = {
 	N_("git stash clear"),
 	N_("git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n"
 	   "          [-u|--include-untracked] [-a|--all] [-m|--message <message>]\n"
-	   "          [--pathspec-from-file=<file> [--pathspec-file-nul]]\n"
 	   "          [--] [<pathspec>...]]"),
 	N_("git stash save [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n"
 	   "          [-u|--include-untracked] [-a|--all] [<message>]"),
@@ -397,7 +396,7 @@ static int do_apply_stash(const char *prefix, struct stash_info *info,
 	const struct object_id *bases[1];
 
 	read_cache_preload(NULL);
-	if (refresh_and_write_cache(REFRESH_QUIET, 0, 0))
+	if (refresh_cache(REFRESH_QUIET))
 		return -1;
 
 	if (write_cache_as_tree(&c_tree, 0, NULL))
@@ -428,8 +427,6 @@ static int do_apply_stash(const char *prefix, struct stash_info *info,
 				return error(_("could not save index tree"));
 
 			reset_head();
-			discard_cache();
-			read_cache();
 		}
 	}
 
@@ -484,12 +481,13 @@ static int do_apply_stash(const char *prefix, struct stash_info *info,
 		if (ret)
 			return -1;
 
-		/* read back the result of update_index() back from the disk */
 		discard_cache();
-		read_cache();
 	}
 
-	if (!quiet) {
+	if (quiet) {
+		if (refresh_cache(REFRESH_QUIET))
+			warning("could not refresh index");
+	} else {
 		struct child_process cp = CHILD_PROCESS_INIT;
 
 		/*
@@ -499,10 +497,6 @@ static int do_apply_stash(const char *prefix, struct stash_info *info,
 		 */
 		cp.git_cmd = 1;
 		cp.dir = prefix;
-		argv_array_pushf(&cp.env_array, GIT_WORK_TREE_ENVIRONMENT"=%s",
-				 absolute_path(get_git_work_tree()));
-		argv_array_pushf(&cp.env_array, GIT_DIR_ENVIRONMENT"=%s",
-				 absolute_path(get_git_dir()));
 		argv_array_push(&cp.args, "status");
 		run_command(&cp);
 	}
@@ -999,9 +993,9 @@ static int stash_patch(struct stash_info *info, const struct pathspec *ps,
 {
 	int ret = 0;
 	struct child_process cp_read_tree = CHILD_PROCESS_INIT;
+	struct child_process cp_add_i = CHILD_PROCESS_INIT;
 	struct child_process cp_diff_tree = CHILD_PROCESS_INIT;
 	struct index_state istate = { NULL };
-	char *old_index_env = NULL, *old_repo_index_file;
 
 	remove_path(stash_index_path.buf);
 
@@ -1015,19 +1009,16 @@ static int stash_patch(struct stash_info *info, const struct pathspec *ps,
 	}
 
 	/* Find out what the user wants. */
-	old_repo_index_file = the_repository->index_file;
-	the_repository->index_file = stash_index_path.buf;
-	old_index_env = xstrdup_or_null(getenv(INDEX_ENVIRONMENT));
-	setenv(INDEX_ENVIRONMENT, the_repository->index_file, 1);
-
-	ret = run_add_interactive(NULL, "--patch=stash", ps);
-
-	the_repository->index_file = old_repo_index_file;
-	if (old_index_env && *old_index_env)
-		setenv(INDEX_ENVIRONMENT, old_index_env, 1);
-	else
-		unsetenv(INDEX_ENVIRONMENT);
-	FREE_AND_NULL(old_index_env);
+	cp_add_i.git_cmd = 1;
+	argv_array_pushl(&cp_add_i.args, "add--interactive", "--patch=stash",
+			 "--", NULL);
+	add_pathspecs(&cp_add_i.args, ps);
+	argv_array_pushf(&cp_add_i.env_array, "GIT_INDEX_FILE=%s",
+			 stash_index_path.buf);
+	if (run_command(&cp_add_i)) {
+		ret = -1;
+		goto done;
+	}
 
 	/* State of the working tree. */
 	if (write_index_as_tree(&info->w_tree, &istate, stash_index_path.buf, 0,
@@ -1091,9 +1082,8 @@ static int stash_working_tree(struct stash_info *info, const struct pathspec *ps
 	}
 
 	cp_upd_index.git_cmd = 1;
-	argv_array_pushl(&cp_upd_index.args, "update-index",
-			 "--ignore-skip-worktree-entries",
-			 "-z", "--add", "--remove", "--stdin", NULL);
+	argv_array_pushl(&cp_upd_index.args, "update-index", "-z", "--add",
+			 "--remove", "--stdin", NULL);
 	argv_array_pushf(&cp_upd_index.env_array, "GIT_INDEX_FILE=%s",
 			 stash_index_path.buf);
 
@@ -1139,10 +1129,7 @@ static int do_create_stash(const struct pathspec *ps, struct strbuf *stash_msg_b
 	prepare_fallback_ident("git stash", "git@stash");
 
 	read_cache_preload(NULL);
-	if (refresh_and_write_cache(REFRESH_QUIET, 0, 0) < 0) {
-		ret = -1;
-		goto done;
-	}
+	refresh_cache(REFRESH_QUIET);
 
 	if (get_oid("HEAD", &info->b_commit)) {
 		if (!quiet)
@@ -1303,7 +1290,7 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q
 		free(ps_matched);
 	}
 
-	if (refresh_and_write_cache(REFRESH_QUIET, 0, 0)) {
+	if (refresh_cache(REFRESH_QUIET)) {
 		ret = -1;
 		goto done;
 	}
@@ -1396,7 +1383,7 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q
 			struct child_process cp = CHILD_PROCESS_INIT;
 			cp.git_cmd = 1;
 			argv_array_pushl(&cp.args, "reset", "--hard", "-q",
-					 "--no-recurse-submodules", NULL);
+					 NULL);
 			if (run_command(&cp)) {
 				ret = -1;
 				goto done;
@@ -1452,17 +1439,13 @@ done:
 	return ret;
 }
 
-static int push_stash(int argc, const char **argv, const char *prefix,
-		      int push_assumed)
+static int push_stash(int argc, const char **argv, const char *prefix)
 {
-	int force_assume = 0;
 	int keep_index = -1;
 	int patch_mode = 0;
 	int include_untracked = 0;
 	int quiet = 0;
-	int pathspec_file_nul = 0;
 	const char *stash_msg = NULL;
-	const char *pathspec_from_file = NULL;
 	struct pathspec ps;
 	struct option options[] = {
 		OPT_BOOL('k', "keep-index", &keep_index,
@@ -1476,45 +1459,16 @@ static int push_stash(int argc, const char **argv, const char *prefix,
 			    N_("include ignore files"), 2),
 		OPT_STRING('m', "message", &stash_msg, N_("message"),
 			   N_("stash message")),
-		OPT_PATHSPEC_FROM_FILE(&pathspec_from_file),
-		OPT_PATHSPEC_FILE_NUL(&pathspec_file_nul),
 		OPT_END()
 	};
 
-	if (argc) {
-		force_assume = !strcmp(argv[0], "-p");
+	if (argc)
 		argc = parse_options(argc, argv, prefix, options,
 				     git_stash_push_usage,
-				     PARSE_OPT_KEEP_DASHDASH);
-	}
-
-	if (argc) {
-		if (!strcmp(argv[0], "--")) {
-			argc--;
-			argv++;
-		} else if (push_assumed && !force_assume) {
-			die("subcommand wasn't specified; 'push' can't be assumed due to unexpected token '%s'",
-			    argv[0]);
-		}
-	}
+				     0);
 
 	parse_pathspec(&ps, 0, PATHSPEC_PREFER_FULL | PATHSPEC_PREFIX_ORIGIN,
 		       prefix, argv);
-
-	if (pathspec_from_file) {
-		if (patch_mode)
-			die(_("--pathspec-from-file is incompatible with --patch"));
-
-		if (ps.nr)
-			die(_("--pathspec-from-file is incompatible with pathspec arguments"));
-
-		parse_pathspec_file(&ps, 0,
-				    PATHSPEC_PREFER_FULL | PATHSPEC_PREFIX_ORIGIN,
-				    prefix, pathspec_from_file, pathspec_file_nul);
-	} else if (pathspec_file_nul) {
-		die(_("--pathspec-file-nul requires --pathspec-from-file"));
-	}
-
 	return do_push_stash(&ps, stash_msg, quiet, keep_index, patch_mode,
 			     include_untracked);
 }
@@ -1584,6 +1538,7 @@ static int use_builtin_stash(void)
 
 int cmd_stash(int argc, const char **argv, const char *prefix)
 {
+	int i = -1;
 	pid_t pid = getpid();
 	const char *index_file;
 	struct argv_array args = ARGV_ARRAY_INIT;
@@ -1616,7 +1571,7 @@ int cmd_stash(int argc, const char **argv, const char *prefix)
 		    (uintmax_t)pid);
 
 	if (!argc)
-		return !!push_stash(0, NULL, prefix, 0);
+		return !!push_stash(0, NULL, prefix);
 	else if (!strcmp(argv[0], "apply"))
 		return !!apply_stash(argc, argv, prefix);
 	else if (!strcmp(argv[0], "clear"))
@@ -1636,15 +1591,45 @@ int cmd_stash(int argc, const char **argv, const char *prefix)
 	else if (!strcmp(argv[0], "create"))
 		return !!create_stash(argc, argv, prefix);
 	else if (!strcmp(argv[0], "push"))
-		return !!push_stash(argc, argv, prefix, 0);
+		return !!push_stash(argc, argv, prefix);
 	else if (!strcmp(argv[0], "save"))
 		return !!save_stash(argc, argv, prefix);
 	else if (*argv[0] != '-')
 		usage_msg_opt(xstrfmt(_("unknown subcommand: %s"), argv[0]),
 			      git_stash_usage, options);
 
-	/* Assume 'stash push' */
+	if (strcmp(argv[0], "-p")) {
+		while (++i < argc && strcmp(argv[i], "--")) {
+			/*
+			 * `akpqu` is a string which contains all short options,
+			 * except `-m` which is verified separately.
+			 */
+			if ((strlen(argv[i]) == 2) && *argv[i] == '-' &&
+			    strchr("akpqu", argv[i][1]))
+				continue;
+
+			if (!strcmp(argv[i], "--all") ||
+			    !strcmp(argv[i], "--keep-index") ||
+			    !strcmp(argv[i], "--no-keep-index") ||
+			    !strcmp(argv[i], "--patch") ||
+			    !strcmp(argv[i], "--quiet") ||
+			    !strcmp(argv[i], "--include-untracked"))
+				continue;
+
+			/*
+			 * `-m` and `--message=` are verified separately because
+			 * they need to be immediately followed by a string
+			 * (i.e.`-m"foobar"` or `--message="foobar"`).
+			 */
+			if (starts_with(argv[i], "-m") ||
+			    starts_with(argv[i], "--message="))
+				continue;
+
+			usage_with_options(git_stash_usage, options);
+		}
+	}
+
 	argv_array_push(&args, "push");
 	argv_array_pushv(&args, argv);
-	return !!push_stash(args.argc, args.argv, prefix, 1);
+	return !!push_stash(args.argc, args.argv, prefix);
 }