grep: add a test helper function for less verbose -f \0 tests

diff --git a/grep.c b/grep.c
index 0dbdc1d007893042dc1005478f3023eed4ecfc12..47cee4506703f5dd2b7db84e09dae93adf99fbaf 100644 (file)
--- a/grep.c
+++ b/grep.c
@@ -12,6 +12,11 @@ static int grep_source_is_binary(struct grep_source *gs);
 
 static struct grep_opt grep_defaults;
 
+static void std_output(struct grep_opt *opt, const void *buf, size_t size)
+{
+       fwrite(buf, size, 1, stdout);
+}
+
 /*
  * Initialize the grep_defaults template with hardcoded defaults.
  * We could let the compiler do this, but without C99 initializers
@@ -42,6 +47,7 @@ void init_grep_defaults(void)
        color_set(opt->color_selected, "");
        color_set(opt->color_sep, GIT_COLOR_CYAN);
        opt->color = -1;
+       opt->output = std_output;
 }
 
 static int parse_pattern_type_arg(const char *opt, const char *arg)
@@ -152,6 +158,7 @@ void grep_init(struct grep_opt *opt, const char *prefix)
        opt->pathname = def->pathname;
        opt->regflags = def->regflags;
        opt->relative = def->relative;
+       opt->output = def->output;
 
        color_set(opt->color_context, def->color_context);
        color_set(opt->color_filename, def->color_filename);
@@ -1164,7 +1171,7 @@ static void show_line(struct grep_opt *opt, char *bol, char *eol,
        }
        if (opt->linenum) {
                char buf[32];
-               snprintf(buf, sizeof(buf), "%d", lno);
+               xsnprintf(buf, sizeof(buf), "%d", lno);
                output_color(opt, buf, strlen(buf), opt->color_lineno);
                output_sep(opt, sign);
        }
@@ -1379,11 +1386,6 @@ static int look_ahead(struct grep_opt *opt,
        return 0;
 }
 
-static void std_output(struct grep_opt *opt, const void *buf, size_t size)
-{
-       fwrite(buf, size, 1, stdout);
-}
-
 static int fill_textconv_grep(struct userdiff_driver *driver,
                              struct grep_source *gs)
 {
@@ -1651,7 +1653,7 @@ static int grep_source_1(struct grep_opt *opt, struct grep_source *gs, int colle
                                     opt->color_filename);
                        output_sep(opt, ':');
                }
-               snprintf(buf, sizeof(buf), "%u\n", count);
+               xsnprintf(buf, sizeof(buf), "%u\n", count);
                opt->output(opt, buf, strlen(buf));
                return 1;
        }