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#!/usr/bin/perl
# convert end of line patterns from DOS to UNIX
use strict;
use warnings;
use File::Find;
use File::Temp;
my $buildroot = $ENV{RPM_BUILD_ROOT};
die "No build root defined" unless $buildroot;
die "Invalid build root" unless -d $buildroot;
# normalize build root
$buildroot =~ s|/$||;
my $exclude_pattern = $ENV{EXCLUDE_FROM_EOL_CONVERSION} ?
qr/$ENV{EXCLUDE_FROM_EOL_CONVERSION}/ : undef;
find(\&convert, $buildroot);
sub convert {
# skip everything but files
return unless -f $_;
# skip symlinks
return if -l $_;
# skip binary files
return unless -T $_;
# skip excluded files
return if $exclude_pattern && $File::Find::name =~ $exclude_pattern;
# check if first line has less than 80 characters and ends with \r\n
open(my $in, '<', $_) or die "Unable to open file $_: $!";
my $line = <$in>;
if (
defined $line &&
length($line) <= 80 &&
$line !~ /^%PDF/ &&
$line =~ s/\r\n$/\n/
) {
# process all file
my $out = File::Temp->new(DIR => '.', UNLINK => 0);
print $out $line;
while (defined ($line = <$in>)) {
$line =~ s/\r\n$/\n/;
print $out $line;
}
my $tmp = $out->filename;
$out = undef;
# rename file, taking care to keep original permissions
my $perms = (stat $_)[2] & 07777;
rename($tmp, $_) or die "Unable to rename $tmp to $_: $!";
chmod($perms, $_);
}
close($in);
}
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