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#!/usr/bin/env perl
# Public domain notice for all NCBI EDirect scripts is located at:
# https://www.ncbi.nlm.nih.gov/books/NBK179288/#chapter6.Public_Domain_Notice
use warnings;
use strict;
use File::Path;
use Net::FTP;
use POSIX qw(uname);
my $cache_dir = "$ENV{HOME}/.cache/ncbi-converters";
if (defined $ENV{NCBI_CONVERTER_DIR}) {
$cache_dir = $ENV{NCBI_CONVERTER_DIR};
}
my $server = 'ftp.ncbi.nlm.nih.gov';
my $platform = DetectPlatform();
my $dir = "/toolbox/ncbi_tools/converters/by_platform/$platform";
my $ext = ($platform eq 'win') ? 'zip' : 'gz';
my $binext = ($platform eq 'win') ? '.exe' : '';
my $archive = "$ARGV[0].$platform.$ext";
my $executable = "$cache_dir/" . $ARGV[0] . $binext;
if ( ! -d $cache_dir ) {
File::Path::make_path($cache_dir)
or die "Unable to ensure the existence of $cache_dir: $!";
}
my $ftp = new Net::FTP($server, Passive => 1)
or die "Unable to connect to FTP server: $!";
$ftp->login or die "Unable to log in to FTP server";
$ftp->cwd($dir) or die "Unable to change to $dir";
$ftp->binary or warn "Unable to set binary mode";
my $time = $ftp->mdtm($archive);
my @stats = stat "$cache_dir/$ARGV[0]$binext";
if ( !@stats || $stats[9] < $time) {
$ftp->get("$archive", "$cache_dir/$archive")
or die "Unable to download $archive";
utime $time, $time, "$cache_dir/$archive";
my $pid = fork();
if ($pid < 0) {
die "Unable to fork for unpacking: $!";
} elsif ($pid > 0) {
waitpid($pid, 0);
chmod(0777 &~ umask, $executable);
utime $time, $time, $executable;
} else {
chdir($cache_dir);
if ($platform eq 'win') {
exec('unzip', $archive);
} else {
system('gunzip', '-n', $archive);
rename("$ARGV[0].$platform", $ARGV[0]);
exit 0;
}
}
}
shift;
exec($executable, @ARGV);
sub DetectPlatform
{
my @uname = uname();
my $OS = $uname[0];
my $CPU = $uname[4];
my $pf;
my $last_built;
if ($OS =~ /^CYGWIN/) {
$pf = 'win';
} elsif ($OS eq 'Darwin') {
$pf = 'mac';
} elsif ($OS eq 'Linux') {
if ($CPU =~ /i\d86/) {
$pf = 'linux32';
$last_built = 'November 2014';
} elsif ($CPU eq 'x86_64') {
$pf = 'linux64';
}
} elsif ($OS eq 'SunOS') {
if ($CPU =~ /^s/) {
$pf = 'solaris';
$last_built = 'March 2014';
} else {
$pf = 'solaris-x86';
$last_built = 'September 2014';
}
} else {
die "No prebuilt binaries available for $OS/$CPU";
}
if (defined $last_built) {
warn "NCBI no longer builds for $OS/$CPU; using a binary from"
. " $last_built";
}
return $pf;
}
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