Subject: [PATCH 01/20] userdiff: refactor away the parse_bool() function

From: Ævar Arnfjörð Bjarmason <[email-masked]>
Date: Mon, 15 Feb 2021 01:52:17 +0100

Since 6680a0874f (drop odd return value semantics from
userdiff_config, 2012-02-07) we have not cared about the return values
of parse_tristate() or git_config_bool() v.s. falling through in
userdiff_config(), so let's do so in those cases to make the code
easier to read.

Having a wrapper function for git_config_bool() dates back to
d9bae1a178 (diff: cache textconv output, 2010-04-01) and
122aa6f9c0 (diff: introduce diff.<driver>.binary, 2008-10-05), both of
which predated the change in 6680a0874f which made their return values
redundant.

Signed-off-by: Ævar Arnfjörð Bjarmason <[email-masked]>
---
 userdiff.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/userdiff.c b/userdiff.c
index 3f81a2261c..c147bcbb17 100644
--- a/userdiff.c
+++ b/userdiff.c
@@ -275,19 +275,12 @@ static int parse_funcname(struct userdiff_funcname *f, const char *k,
 	return 0;
 }
 
-static int parse_tristate(int *b, const char *k, const char *v)
+static void parse_tristate(int *b, const char *k, const char *v)
 {
 	if (v && !strcasecmp(v, "auto"))
 		*b = -1;
 	else
 		*b = git_config_bool(k, v);
-	return 0;
-}
-
-static int parse_bool(int *b, const char *k, const char *v)
-{
-	*b = git_config_bool(k, v);
-	return 0;
 }
 
 int userdiff_config(const char *k, const char *v)
@@ -312,16 +305,17 @@ int userdiff_config(const char *k, const char *v)
 		return parse_funcname(&drv->funcname, k, v, 0);
 	if (!strcmp(type, "xfuncname"))
 		return parse_funcname(&drv->funcname, k, v, REG_EXTENDED);
-	if (!strcmp(type, "binary"))
-		return parse_tristate(&drv->binary, k, v);
 	if (!strcmp(type, "command"))
 		return git_config_string(&drv->external, k, v);
 	if (!strcmp(type, "textconv"))
 		return git_config_string(&drv->textconv, k, v);
-	if (!strcmp(type, "cachetextconv"))
-		return parse_bool(&drv->textconv_want_cache, k, v);
 	if (!strcmp(type, "wordregex"))
 		return git_config_string(&drv->word_regex, k, v);
+	/* Don't care about the parse errors for these, fallthrough */
+	if (!strcmp(type, "cachetextconv"))
+		drv->textconv_want_cache = git_config_bool(k, v);
+	if (!strcmp(type, "binary"))
+		parse_tristate(&drv->binary, k, v);
 
 	return 0;
 }
-- 
2.30.0.284.gd98b1dd5eaa7