Re: [PATCH 1/6] ident: make user_ident_explicitly_given private

[Jonathan Nieder <jrnieder@gmail.com>]

Jeff King wrote:

> There are no users of this global variable, as queriers
> go through the user_ident_sufficiently_given accessor.
> Let's make it private, which will enable further
> refactoring.
[...]
> --- a/cache.h
> +++ b/cache.h
> @@ -1149,10 +1149,6 @@ struct config_include_data {
>  #define CONFIG_INCLUDE_INIT { 0 }
>  extern int git_config_include(const char *name, const char *value, void *data);
>  
> -#define IDENT_NAME_GIVEN 01
> -#define IDENT_MAIL_GIVEN 02
> -#define IDENT_ALL_GIVEN (IDENT_NAME_GIVEN|IDENT_MAIL_GIVEN)
> -extern int user_ident_explicitly_given;
>  extern int user_ident_sufficiently_given(void);

In v1.5.6-rc0~56^2 (2008-05-04) "user_ident_explicitly_given" was
introduced as a global for communication between config, ident, and
builtin-commit.  In v1.7.0-rc0~72^2 (2010-01-07) readers switched to
using the common wrapper user_ident_sufficiently_given().  After
v1.7.11-rc1~15^2~18 (2012-05-21) the var is only written in ident.c,
and the variable can finally be made static.

This patch finally does that, which is a nice way to make cache.h
easier to read and change less often.

For what it's worth,
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>