Re: [PATCH 2/2] checkpatch: Add --conf-dir option

[Petr Vorel <pvorel@suse.cz>]

Hi,

gently ping about the patchset. We can keep the functionality out of tree,
but I suppose more project which use checkpatch.pl would benefit from it.

Kind regards,
Petr

> This allows to directly use project configuration file for projects
> which vendored checkpatch.pl (e.g. LTP or u-boot).

> Options from the configuration file has been read before processing
> command line options with Getopt::Long since the start (000d1cc1829f9)
> because options read from config file needs to be unshifted from command
> line arguments (@ARGV) before processing with Getopt::Long. Therefore
> parse --conf-dir with direct reading @ARGV.

> Signed-off-by: Petr Vorel <pvorel@suse.cz>
> ---
> @ARGV can be probably processed cleaner.

> Kind regards,
> Petr

>  scripts/checkpatch.pl | 31 +++++++++++++++++++++++++++++--
>  1 file changed, 29 insertions(+), 2 deletions(-)

> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 8fffdf9e7f85f..7e19287d452d8 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -58,6 +58,7 @@ my @ignore = ();
>  my $help = 0;
>  my $configuration_file = ".checkpatch.conf";
>  my $def_configuration_dirs = ".:$ENV{HOME}:.scripts";
> +my $configuration_dir = "";
>  my $max_line_length = 100;
>  my $ignore_perl_version = 0;
>  my $minimum_perl_version = 5.10.0;
> @@ -144,12 +145,14 @@ Options:
>                               is a terminal ('auto'). Default is 'auto'.
>    --kconfig-prefix=WORD      use WORD as a prefix for Kconfig symbols (default
>                               ${CONFIG_})
> +  --conf-dir=DIR             directory with $configuration_file configuration file
> +                             (default:$def_configuration_dirs)
>    -h, --help, --version      display this help and exit

>  When FILE is - read standard input.

>  Script searches for a configuration file $configuration_file in path:
> -$def_configuration_dirs
> +$def_configuration_dirs (can be overwritten by --conf-dir)
>  EOM

>  	exit($exitcode);
> @@ -241,7 +244,31 @@ sub list_types {
>  	exit($exitcode);
>  }

> -my $conf = which_conf($configuration_file, $def_configuration_dirs);
> +# parse --conf-dir before the other options
> +my @argv;
> +while (@ARGV) {
> +	my $arg = shift @ARGV;
> +	if ($arg eq '--conf-dir') {
> +		$configuration_dir = shift @ARGV;
> +		die "--conf-dir requires value" unless ($configuration_dir);
> +	} elsif ($arg =~ /^--conf-dir=(.+)$/) {
> +		$configuration_dir = $1;
> +		die "--conf-dir requires value" unless ($configuration_dir);
> +	} else {
> +		push @argv, $arg;
> +	}
> +}
> +@ARGV = @argv;
> +
> +my $conf;
> +if ($configuration_dir) {
> +	die "Dir. $configuration_dir does not exist" unless (-d $configuration_dir);
> +	$conf = "$configuration_dir/$configuration_file";
> +	die "File $conf does not exist" unless (-f $conf);
> +} else {
> +	$conf = which_conf($configuration_file, $def_configuration_dirs);
> +}
> +
>  if (-f $conf) {
>  	my @conf_args;
>  	open(my $conffile, '<', "$conf")