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#!/usr/bin/env perl
# $Id$
# given a moses.ini file, creates a fresh version of it
# in the current directory
# All relevant files are hardlinked or copied to the directory, too.
use warnings;
use strict;
use Getopt::Long;
my @fixpath = ();
# specify search-replace pattern to fix paths.
# use a space to delimit source and target pathnames
my $symlink = 0; # prefer symlink over hardlink, but revert to hardlink or copy
# if symlink fails
GetOptions(
"fixpath=s" => \@fixpath,
"symlink"=>\$symlink,
);
my @fixrepls = map {
my ($fixsrc, $fixtgt) = split / /, $_;
print STDERR "Will replace >$fixsrc< with >$fixtgt<\n";
[ $fixsrc, $fixtgt ];
} @fixpath;
my $ini = shift;
die "usage: clone_moses_model.pl /a/source/moses.ini" if !defined $ini;
die "./moses.ini exists, will not overwrite" if -e "moses.ini";
my %cnt; # count files per section
open INI, $ini or die "Can't read $ini";
open OUT, ">moses.ini" or die "Can't write ./moses.ini";
my $section = undef;
while (<INI>) {
if (/^\[([^\]]*)\]\s*$/) {
$section = $1;
}
if (/^[0-9]/) {
if ($section eq "ttable-file") {
chomp;
my ($a, $b, $c, $d, $fn) = split(/ /, $_, 5);
$cnt{$section}++;
if ( $a eq '8' ) {
# suffix arrays model: <src-corpus> <tgt-corpus> <alignment>.
my ($src, $tgt, $align) = split(/ /, $fn);
$src = fixpath($src);
$src = ensure_relative_from_origin($src, $ini);
$src = ensure_exists_or_gzipped_exists($src);
my $src_suffix = ($src =~ /\.gz$/ ? ".gz" : "");
clone_file_or_die($src, "./sa.src.$cnt{$section}$src_suffix");
$tgt = fixpath($tgt);
$tgt = ensure_relative_from_origin($tgt, $ini);
$tgt = ensure_exists_or_gzipped_exists($tgt);
my $tgt_suffix = ($tgt =~ /\.gz$/ ? ".gz" : "");
clone_file_or_die($tgt, "./sa.tgt.$cnt{$section}$tgt_suffix");
$align = fixpath($align);
$align = ensure_relative_from_origin($align, $ini);
$align = ensure_exists_or_gzipped_exists($align);
my $align_suffix = ($align =~ /\.gz$/ ? ".gz" : "");
clone_file_or_die($align, "./sa.align.$cnt{$section}$align_suffix");
$_ = "$a $b $c $d ./sa.src.$cnt{$section}$src_suffix ./sa.tgt.$cnt{$section}$tgt_suffix ./sa.align.$cnt{$section}$align_suffix\n";
}
elsif ( $a eq '1' ) {
# handle binarized phrase tables
$fn = ensure_relative_from_origin(fixpath($fn));
foreach my $suf (qw( idx srctree srcvoc tgtdata tgtvoc )) {
my $fullname = "$fn.binphr.$suf";
if (-f $fullname) {
clone_file_or_die($fullname, "./$section.$cnt{$section}.binphr.$suf");
} else {
die "Binary format specified but file $fullname not found!\n";
}
}
$_ = "$a $b $c $d ./$section.$cnt{$section}\n";
} else {
$fn = fixpath($fn);
$fn = ensure_relative_from_origin($fn, $ini);
$fn = ensure_exists_or_gzipped_exists($fn);
my $suffix = ($fn =~ /\.gz$/ ? ".gz" : "");
clone_file_or_die($fn, "./$section.$cnt{$section}$suffix");
$_ = "$a $b $c $d ./$section.$cnt{$section}$suffix\n";
}
}
if ($section eq "generation-file" || $section eq "lmodel-file") {
chomp;
my ($a, $b, $c, $fn) = split / /;
$cnt{$section}++;
$fn = fixpath($fn);
$fn = ensure_relative_from_origin($fn, $ini);
$fn = ensure_exists_or_gzipped_exists($fn);
my $suffix = ($fn =~ /\.gz$/ ? ".gz" : "");
clone_file_or_die($fn, "./$section.$cnt{$section}$suffix");
$_ = "$a $b $c ./$section.$cnt{$section}$suffix\n";
}
if ($section eq "distortion-file") {
chomp;
my ($a, $b, $c, $fn) = split / /;
$cnt{$section}++;
$fn = fixpath($fn);
$fn = ensure_relative_from_origin($fn, $ini);
$fn = ensure_exists_or_gzipped_exists($fn);
my $suffix = ($fn =~ /\.gz$/ ? ".gz" : "");
clone_file_or_die($fn, "./$section.$cnt{$section}$suffix");
$_ = "$a $b $c ./$section.$cnt{$section}$suffix\n";
}
}
print OUT $_;
}
close INI;
close OUT;
sub clone_file_or_die {
my $src = shift;
my $tgt = shift;
my $src = resolve($src); # resolve symlinks
my $ok = 0;
if ($symlink) {
# attemt a symlink
$ok = safesystem("ln", "-s", $src, $tgt);
}
if (!$ok) {
# perform a hardlink or a copy
if (! safesystem("ln", $src, $tgt)) {
# hardlink failed perform a copy
safesystem("cp", "-u", $src, $tgt)
or die "Failed to clone $src into $tgt";
}
}
safesystem("echo $src > $tgt.info"); # dump a short information
}
sub ensure_exists_or_gzipped_exists {
my $fn = shift;
return $fn if -e $fn;
my $tryfn = $fn.".gz";
return $tryfn if -e $tryfn;
die "$0:$ini:Neither file $fn nor $tryfn found.";
}
sub fixpath {
my $fn = shift;
foreach my $pair (@fixrepls) {
$fn =~ s/$pair->[0]/$pair->[1]/g;
}
return $fn;
}
sub safesystem {
print STDERR "Executing: @_\n";
system(@_);
if ($? == -1) {
print STDERR "Failed to execute: @_\n $!\n";
exit(1);
}
elsif ($? & 127) {
printf STDERR "Execution of: @_\n died with signal %d, %s coredump\n",
($? & 127), ($? & 128) ? 'with' : 'without';
}
else {
my $exitcode = $? >> 8;
print STDERR "Exit code: $exitcode\n" if $exitcode;
return ! $exitcode;
}
}
sub resolve {
my $f = shift;
return $f if ! -l $f;
my $targ_from_lnk = readlink($f) or die "Can't lstat $f";
my $targ = ensure_relative_from_origin($targ_from_lnk, $f);
# print STDERR "$f ---> $targ_from_lnk ---> $targ\n";
my $fully = 1; # resolve the full chain of symlinks
if ($fully) {
my $newtarg = resolve($targ);
$targ = $newtarg if defined $newtarg;
}
return $targ;
}
sub ensure_relative_from_origin {
my $target = shift;
my $originfile = shift;
return $target if $target =~ /^\/|^~/; # the target path is absolute already
$originfile =~ s/[^\/]*$//;
my $prefix = ($originfile eq "" ? "" : $originfile."/");
return simplify_path($prefix.$target);
}
sub simplify_path {
my $path = shift;
my $lastpath = "";
while ($lastpath ne $path) {
$lastpath = $path;
$path =~ s/\/+/\//g;
$path =~ s/(\/\.)+\//\//g;
$path =~ s/\/[^\/]+(?<!\/\.\.)\/\.\.\//\//g;
$path =~ s/^[^\/]+(?<!\/\.\.)\/\.\.\///g;
}
return $path;
}
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