Re: [PATCH 1/2] log.decorate: accept 0/1 bool values

[Jeff King <peff@peff.net>]

On Thu, Nov 18, 2010 at 09:00:13AM -0800, Junio C Hamano wrote:

> Jeff King <peff@peff.net> writes:
> 
> > I don't think it is worth closing the hole for no reason on other config
> > options, but I am certainly fine with breaking it in the case of
> > pager.*.
> 
> Hmm, I guess that is fine, but will we hear "Why does it behave
> differently only for pager.*" down the line, just like the issue your
> patch 1/2 addressed, which was "Why does it behave differently only for
> log.decorate?"

Perhaps, but the difference is that for log.decorate I had no answer
(because it was not behaving as indicated by the documentation), whereas
with this I can with a good conscious say "go away, you are relying
ridiculous undocumented behavior".

That being said, it is much easier than I expected to make it Just Work
the same way, so perhaps we should do this on top:

-- >8 --
Subject: [PATCH] handle arbitrary ints in git_config_maybe_bool

This function recently gained the ability to recognize the
documented "0" and "1" values as false/true. However, unlike
regular git_config_bool, it did not treat arbitrary numbers
as true. While this is undocumented and probably ridiculous
for somebody to rely on, it is safer to behave exactly as
git_config_bool would. Because git_config_maybe_bool can be
used to retrofit new non-bool values onto existings bool
options, not behaving in exactly the same way is technically
a regression.

Signed-off-by: Jeff King <peff@peff.net>
---
It even saves 2 lines, so it _must_ be better. :)

 config.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/config.c b/config.c
index d3fa953..299ae80 100644
--- a/config.c
+++ b/config.c
@@ -429,13 +429,11 @@ static int git_config_maybe_bool_text(const char *name, const char *value)
 
 int git_config_maybe_bool(const char *name, const char *value)
 {
-	int v = git_config_maybe_bool_text(name, value);
+	long v = git_config_maybe_bool_text(name, value);
 	if (0 <= v)
 		return v;
-	if (!strcmp(value, "0"))
-		return 0;
-	if (!strcmp(value, "1"))
-		return 1;
+	if (git_parse_long(value, &v))
+		return !!v;
 	return -1;
 }
 
-- 
1.7.3.2.510.g24900