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#!/usr/bin/perl -w
use strict;
my $SCRIPT_DIR; BEGIN { use Cwd qw/ abs_path /; use File::Basename; $SCRIPT_DIR = dirname(abs_path($0)); push @INC, $SCRIPT_DIR; }
my $REKEY="$SCRIPT_DIR/rekey.pl";
my $REFILTER="$SCRIPT_DIR/refilter.pl";
my $SORT="$SCRIPT_DIR/sort-by-key.sh";
assert_exec($REKEY, $REFILTER, $SORT);
die "Usage: $0 ingrammar.gz outgrammar.gz\n" unless scalar @ARGV == 2;
die unless $ARGV[0] =~ /\.gz$/;
die unless $ARGV[1] =~ /\.gz$/;
die if $ARGV[0] eq $ARGV[1];
die "Can't find $ARGV[0]" unless -f $ARGV[0];
my $cmd = "gunzip -c $ARGV[0] | $REKEY | $SORT | $REFILTER | gzip > $ARGV[1]";
safesystem($ARGV[1], $cmd) or die "Filtering failed";
exit 0;
sub assert_exec {
my @files = @_;
for my $file (@files) {
die "Can't find $file - did you run make?\n" unless -e $file;
die "Can't execute $file" unless -e $file;
}
};
sub safesystem {
my $output = shift @_;
print STDERR "Executing: @_\n";
system(@_);
if ($? == -1) {
print STDERR "ERROR: Failed to execute: @_\n $!\n";
if (defined $output && -e $output) { printf STDERR "Removing $output\n"; `rm -rf $output`; }
exit(1);
}
elsif ($? & 127) {
printf STDERR "ERROR: Execution of: @_\n died with signal %d, %s coredump\n",
($? & 127), ($? & 128) ? 'with' : 'without';
if (defined $output && -e $output) { printf STDERR "Removing $output\n"; `rm -rf $output`; }
exit(1);
}
else {
my $exitcode = $? >> 8;
if ($exitcode) {
print STDERR "Exit code: $exitcode\n";
if (defined $output && -e $output) { printf STDERR "Removing $output\n"; `rm -rf $output`; }
}
return ! $exitcode;
}
}
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