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builtin/commit.c: use xstrdup_or_null instead of envdup 

The only reason for envdup to be its own function is that we
have to save the result in a temporary string. With
xstrdup_or_null, we can feed the result of getenv()
directly.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2015-01-12 20:58:33 -05:00 committed by Junio C Hamano
parent 4440690786
commit eaa541eb59
1 changed files with 3 additions and 9 deletions
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12
builtin/commit.c
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@ -566,20 +566,14 @@ static void set_ident_var(char **buf, char *val)
*buf = val;
}
static char *envdup(const char *var)
{
const char *val = getenv(var);
return val ? xstrdup(val) : NULL;
}
static void determine_author_info(struct strbuf *author_ident)
{
char *name, *email, *date;
struct ident_split author;
name = envdup("GIT_AUTHOR_NAME");
email = envdup("GIT_AUTHOR_EMAIL");
date = envdup("GIT_AUTHOR_DATE");
name = xstrdup_or_null(getenv("GIT_AUTHOR_NAME"));
email = xstrdup_or_null(getenv("GIT_AUTHOR_EMAIL"));
date = xstrdup_or_null(getenv("GIT_AUTHOR_DATE"));
if (author_message) {
struct ident_split ident;