format-patch: introduce --base=auto option

diff --git a/builtin/grep.c b/builtin/grep.c
index 06ab68223a13b35612e2cb283d778a9c904b5528..aa7435f380e95d87982cd1ae71e91bc53e77af50 100644 (file)
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -365,17 +365,17 @@ static void append_path(struct grep_opt *opt, const void *data, size_t len)
 static void run_pager(struct grep_opt *opt, const char *prefix)
 {
        struct string_list *path_list = opt->output_priv;
-       const char **argv = xmalloc(sizeof(const char *) * (path_list->nr + 1));
+       struct child_process child = CHILD_PROCESS_INIT;
        int i, status;
 
        for (i = 0; i < path_list->nr; i++)
-               argv[i] = path_list->items[i].string;
-       argv[path_list->nr] = NULL;
+               argv_array_push(&child.args, path_list->items[i].string);
+       child.dir = prefix;
+       child.use_shell = 1;
 
-       status = run_command_v_opt_cd_env(argv, RUN_USING_SHELL, prefix, NULL);
+       status = run_command(&child);
        if (status)
                exit(status);
-       free(argv);
 }
 
 static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int cached)
@@ -573,7 +573,7 @@ static int file_callback(const struct option *opt, const char *arg, int unset)
        patterns = from_stdin ? stdin : fopen(arg, "r");
        if (!patterns)
                die_errno(_("cannot open '%s'"), arg);
-       while (strbuf_getline(&sb, patterns, '\n') == 0) {
+       while (strbuf_getline(&sb, patterns) == 0) {
                /* ignore empty line like grep does */
                if (sb.len == 0)
                        continue;
@@ -768,9 +768,15 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
                             PARSE_OPT_STOP_AT_NON_OPTION);
        grep_commit_pattern_type(pattern_type_arg, &opt);
 
-       if (use_index && !startup_info->have_repository)
-               /* die the same way as if we did it at the beginning */
-               setup_git_directory();
+       if (use_index && !startup_info->have_repository) {
+               int fallback = 0;
+               git_config_get_bool("grep.fallbacktonoindex", &fallback);
+               if (fallback)
+                       use_index = 0;
+               else
+                       /* die the same way as if we did it at the beginning */
+                       setup_git_directory();
+       }
 
        /*
         * skip a -- separator; we know it cannot be