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#!@PERL@
#
# splitdiff - split up a diff made of incremental patches
# Copyright (C) 2001 Tim Waugh <twaugh@redhat.com>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
use Getopt::Std;
getopts('p:v-:', \%opts);
if ($opts{'-'} && $opts{'-'} eq 'version') {
print "splitdiff - patchutils version @VERSION@\n";
exit 0;
}
if ($opts{'-'} && $opts{'-'} eq 'help') {
print "usage: splitdiff [OPTIONS] FILE\n";
print "OPTIONS are:\n";
print " -p N pathname components to ignore\n";
exit 0;
}
$part = 1;
sub process {
print "Lines $_[0] to $_[1]\n" if ($opts{v});
$out = $ARGV[0].'.part'.$part;
open(OLDOUT, ">&STDOUT");
open(STDOUT, '>', $out) or die "Can't open output file\n";
select(STDOUT); $| = 1;
system ('sed', '-ne', $_[0].','.$_[1].'p', $ARGV[0]);
close(STDOUT);
open(STDOUT, ">&OLDOUT");
print "Wrote ".$out."\n";
$part++;
}
if($#ARGV != 0) {
die "usage: splitdiff DIFF\n";
}
$getlist = 'lsdiff -n ';
$getlist .= '-p'.$opts{p}.' ' if ($opts{p});
$getlist .= $ARGV[0]; # Yuck. How do you do this properly in perl?
open(LIST, '-|', $getlist) or die "Can't run lsdiff";
@list = <LIST>;
close LIST;
%seen = ();
@this = ();
$ready = 0;
for (@list) {
/\s*(\d+)\s*(.*)$/;
my ($linenum, $file) = ($1, $2);
if ($ready == 1) {
process ($firstline, $linenum - 1);
$ready = 0;
}
push @this, [ $linenum, $file ];
if ($seen{$file}) {
$firstline = $this[0]->[0];
$ready = 1;
if ($opts{v}) {
for (@this) {
print $_->[0].": ".$_->[1]."\n";
}
print "\n";
}
@this = ();
}
$seen{$file} = $file;
}
process ($firstline, '$') if $ready == 1;
if ($part == 1) {
print "Input contained no duplicate files; nothing to do\n";
}
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