rev-list: refactor printing bisect vars

This simplifies the code, and while at it we create the
"print_commit_list" function that will be reused later.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

bisect.h

@@ -9,6 +9,10 @@ extern struct commit_list *filter_skipped(struct commit_list *list,
 					  struct commit_list **tried,
 					  int show_all);
 
+extern void print_commit_list(struct commit_list *list,
+			      const char *format_cur,
+			      const char *format_last);
+
 /* bisect_show_flags flags in struct rev_list_info */
 #define BISECT_SHOW_ALL		(1<<0)
 #define BISECT_SHOW_TRIED	(1<<1)

builtin-rev-list.c

@@ -225,20 +225,37 @@ int estimate_bisect_steps(int all)
 	return (e < 3 * x) ? n : n - 1;
 }
 
+void print_commit_list(struct commit_list *list,
+		       const char *format_cur,
+		       const char *format_last)
+{
+	for ( ; list; list = list->next) {
+		const char *format = list->next ? format_cur : format_last;
+		printf(format, sha1_to_hex(list->item->object.sha1));
+	}
+}
+
 static void show_tried_revs(struct commit_list *tried, int stringed)
 {
 	printf("bisect_tried='");
-	for (;tried; tried = tried->next) {
-		char *format = tried->next ? "%s|" : "%s";
-		printf(format, sha1_to_hex(tried->item->object.sha1));
-	}
+	print_commit_list(tried, "%s|", "%s");
 	printf(stringed ? "' &&\n" : "'\n");
 }
 
+static void print_var_str(const char *var, const char *val, int stringed)
+{
+	printf("%s='%s'%s\n", var, val, stringed ? " &&" : "");
+}
+
+static void print_var_int(const char *var, int val, int stringed)
+{
+	printf("%s=%d%s\n", var, val, stringed ? " &&" : "");
+}
+
 int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
 {
-	int cnt, flags = info->bisect_show_flags;
-	char hex[41] = "", *format;
+	int cnt, stringed, flags = info->bisect_show_flags;
+	char hex[41] = "";
 	struct commit_list *tried;
 	struct rev_info *revs = info->revs;
 
@@ -268,29 +285,17 @@ int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
 		printf("------\n");
 	}
 
+	stringed = flags & BISECT_SHOW_STRINGED;
+
 	if (flags & BISECT_SHOW_TRIED)
-		show_tried_revs(tried, flags & BISECT_SHOW_STRINGED);
-	format = (flags & BISECT_SHOW_STRINGED) ?
-		"bisect_rev=%s &&\n"
-		"bisect_nr=%d &&\n"
-		"bisect_good=%d &&\n"
-		"bisect_bad=%d &&\n"
-		"bisect_all=%d &&\n"
-		"bisect_steps=%d\n"
-		:
-		"bisect_rev=%s\n"
-		"bisect_nr=%d\n"
-		"bisect_good=%d\n"
-		"bisect_bad=%d\n"
-		"bisect_all=%d\n"
-		"bisect_steps=%d\n";
-	printf(format,
-	       hex,
-	       cnt - 1,
-	       all - reaches - 1,
-	       reaches - 1,
-	       all,
-	       estimate_bisect_steps(all));
+		show_tried_revs(tried, stringed);
+
+	print_var_str("bisect_rev", hex, stringed);
+	print_var_int("bisect_nr", cnt - 1, stringed);
+	print_var_int("bisect_good", all - reaches - 1, stringed);
+	print_var_int("bisect_bad", reaches - 1, stringed);
+	print_var_int("bisect_all", all, stringed);
+	print_var_int("bisect_steps", estimate_bisect_steps(all), 0);
 
 	return 0;
 }