Documentation: refactor common operations into variables

diff --git a/builtin/grep.c b/builtin/grep.c
index 69ac2d8797ec32dc206425db0a2f3d7356810cfe..c86a142f308d614daefd459fd9f9ddebe03f4cb8 100644 (file)
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -361,9 +361,7 @@ static void run_pager(struct grep_opt *opt, const char *prefix)
                argv[i] = path_list->items[i].string;
        argv[path_list->nr] = NULL;
 
-       if (prefix && chdir(prefix))
-               die(_("Failed to chdir: %s"), prefix);
-       status = run_command_v_opt(argv, RUN_USING_SHELL);
+       status = run_command_v_opt_cd_env(argv, RUN_USING_SHELL, prefix, NULL);
        if (status)
                exit(status);
        free(argv);
@@ -874,6 +872,9 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
                if (len > 4 && is_dir_sep(pager[len - 5]))
                        pager += len - 4;
 
+               if (opt.ignore_case && !strcmp("less", pager))
+                       string_list_append(&path_list, "-I");
+
                if (!strcmp("less", pager) || !strcmp("vi", pager)) {
                        struct strbuf buf = STRBUF_INIT;
                        strbuf_addf(&buf, "+/%s%s",