Re: [PATCH 5/8] config: Disallow multiple config file locations.

[Felipe Contreras <felipe.contreras@gmail.com>]

On Sun, Feb 15, 2009 at 02:44:29PM +0200, Felipe Contreras wrote:
> On Sun, Feb 15, 2009 at 2:26 PM, Johannes Schindelin
> <Johannes.Schindelin@gmx.de> wrote:
> > Hi,
> >
> > On Sun, 15 Feb 2009, Felipe Contreras wrote:
> >
> >> Either --global, --system, or --file should be used, but not any
> >> combination.
> >>
> >> Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
> >> ---
> >>  builtin-config.c |   10 ++++++++++
> >>  1 files changed, 10 insertions(+), 0 deletions(-)
> >>
> >> diff --git a/builtin-config.c b/builtin-config.c
> >> index 83f8b74..e744ad8 100644
> >> --- a/builtin-config.c
> >> +++ b/builtin-config.c
> >> @@ -314,6 +314,16 @@ int cmd_config(int argc, const char **argv, const char *unused_prefix)
> >>
> >>       argc = parse_options(argc, argv, builtin_config_options, builtin_config_usage, 0);
> >>
> >> +     {
> >> +             int config_file_count = use_global_config + use_system_config;
> >> +             if (given_config_file)
> >> +                     config_file_count++;
> >> +             if (config_file_count > 1) {
> >> +                     error("only one config file at a time.");
> >> +                     usage_with_options(builtin_config_usage, builtin_config_options);
> >> +             }
> >> +     }
> >
> > Hmm.  Is this a convoluted way to write
> >
> >        if (use_global_config + use_system_config + !!given_config_file > 1)
> >
> > or am I misunderstanding anything?
> 
> Ah, much better. (the !!foo trick is new to me)

Now inlined:

---
 builtin-config.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/builtin-config.c b/builtin-config.c
index 30de93e..cdd8a12 100644
--- a/builtin-config.c
+++ b/builtin-config.c
@@ -313,6 +313,11 @@ int cmd_config(int argc, const char **argv, const char *unused_prefix)
 
 	argc = parse_options(argc, argv, builtin_config_options, builtin_config_usage, 0);
 
+	if (use_global_config + use_system_config + !!given_config_file > 1) {
+		error("only one config file at a time.");
+		usage_with_options(builtin_config_usage, builtin_config_options);
+	}
+
 	if (use_global_config) {
 		char *home = getenv("HOME");
 		if (home) {
-- 
1.6.1.3


-- 
Felipe Contreras