linux-kernel - Re: [PATCH V2 (changelog update only)] scripts/get_maintainer.pl: Add --sections, print entire matched subsystem

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Date:	Fri, 15 Jan 2010 15:28:03 +0100
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Joe Perches <joe@...ches.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2 (changelog update only)] scripts/get_maintainer.pl:
 Add --sections, print entire matched subsystem

Joe Perches wrote:
> Sample output:
> 
> $ ./scripts/get_maintainer.pl --sections -f drivers/net/usb/smsc95xx.c
> USB SMSC95XX ETHERNET DRIVER
> M:Steve Glendinning <steve.glendinning@...c.com>
> L:netdev@...r.kernel.org
> S:Supported
> F:drivers/net/usb/smsc95xx.*
> USB SUBSYSTEM
> M:Greg Kroah-Hartman <gregkh@...e.de>
> L:linux-usb@...r.kernel.org
> W:http://www.linux-usb.org
> T:quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
[...]

Should it be machine-readable, or only human-readable?
In the latter case, some whitespace could be nice, like:

$ ./scripts/get_maintainer.pl --sections -f drivers/net/usb/smsc95xx.c

USB SMSC95XX ETHERNET DRIVER
    M:Steve Glendinning <steve.glendinning@...c.com>
    L:netdev@...r.kernel.org
    S:Supported
    F:drivers/net/usb/smsc95xx.*

USB SUBSYSTEM
    M:Greg Kroah-Hartman <gregkh@...e.de>
    L:linux-usb@...r.kernel.org
    W:http://www.linux-usb.org
    T:quilt kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/
[...]

For example,

> @@ -346,6 +358,21 @@ foreach my $file (@files) {
>  	}
>  	foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
>  	    add_categories($line);
> +	    if ($sections) {
> +		my $i;
> +		my $start = find_starting_index($line);
> +		my $end = find_ending_index($line);
> +		for ($i = $start; $i < $end; $i++) {
> +		    my $line = $typevalue[$i];
> +		    if ($line =~ /^[FX]:/) {		##Restore file patterns
> +			$line =~ s/([^\\])\.([^\*])/$1\?$2/g;
> +			$line =~ s/([^\\])\.$/$1\?/g;	##Convert . back to ?
> +			$line =~ s/\\\./\./g;       	##Convert \. to .
> +			$line =~ s/\.\*/\*/g;       	##Convert .* to *
> +		    }

		    if ($line =~ /^.:/)
			print("    ");
		    else
			print("\n");

> +		    print("$line\n");
> +		}
> +	    }
>  	}
>      }
>  

-- 
Stefan Richter
-=====-==-=- ---= -====
http://arcgraph.de/sr/
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