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#!/usr/bin/env perl
use strict;
use warnings;
use File::Basename;
use Cwd;
use Carp;
use Getopt::Long qw(:config no_ignore_case bundling pass_through);
my $usage = <<__EOUSAGE__;
######################################################################
#
# Required:
# --genome <string> target genome to align to
# --transcripts <string> cdna sequences to align
#
# Optional:
# -I <int> max intron length
# --CPU <int> number of threads (default: 2)
#
#######################################################################
__EOUSAGE__
;
my ($genome, $transcriptDB, $max_intron);
my $CPU = 2;
my $help_flag;
&GetOptions( 'h' => \$help_flag,
'genome=s' => \$genome,
'transcripts=s' => \$transcriptDB,
'I=i' => \$max_intron,
'CPU=i' => \$CPU,
);
unless ($genome && $transcriptDB) {
die $usage;
}
main: {
my $genomeName = basename($genome);
my $genomeDir = $genomeName . ".gmap";
my $genomeBaseDir = dirname($genome);
my $cwd = cwd();
unless (-d "$genomeBaseDir/$genomeDir") {
my $cmd = "gmap_build -D $genomeBaseDir -d $genomeDir -k 13 $genome >&2";
&process_cmd($cmd);
}
## run GMAP
my $cmd = "gmap -D $genomeBaseDir -d $genomeDir $transcriptDB -f 3 -n 0 -x 50 -t $CPU ";
if ($max_intron) {
$cmd .= " --intronlength=$max_intron ";
}
&process_cmd($cmd);
exit(0);
}
####
sub process_cmd {
my ($cmd) = @_;
print STDERR "CMD: $cmd\n";
#return;
my $ret = system($cmd);
if ($ret) {
die "Error, cmd: $cmd died with ret ($ret)";
}
return;
}
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