--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/Utils.pm	Fri Sep 26 13:24:13 2014 +0200
@@ -0,0 +1,172 @@
+
+=head1 LICENSE
+
+Strelka Workflow Software
+Copyright (c) 2009-2013 Illumina, Inc.
+
+This software is provided under the terms and conditions of the
+Illumina Open Source Software License 1.
+
+You should have received a copy of the Illumina Open Source
+Software License 1 along with this program. If not, see
+<https://github.com/downloads/sequencing/licenses/>.
+
+=cut
+
+
+package Utils;
+
+use base 'Exporter';
+
+our @EXPORT = qw(
+        errorX logX executeCmd checkFile checkDir checkMove
+        getAbsPath checkMakeDir getBinList
+        parseConfigIni writeConfigIni
+    );
+
+use warnings FATAL => 'all';
+use strict;
+
+use Carp;
+use Cwd qw(realpath);
+use File::Copy qw(move);
+use File::Path qw(mkpath);
+
+
+sub errorX($) {
+    confess "\nERROR: " . $_[0] . "\n\n";
+}
+
+sub logX($) {
+    print STDERR "INFO: " . $_[0] . "\n";
+}
+
+
+sub executeCmd($;$) {
+    my $cmd = shift;
+    my $isVerbose = shift;
+
+    logX("Running: '$cmd'") if(defined($isVerbose) and $isVerbose);
+    system($cmd) == 0
+      or errorX("Failed system call: '$cmd'");
+}
+#return an error if file does not exist 
+sub checkFile($;$) {
+    my $file = shift;
+    return if(-f $file);
+    my $label = shift;
+    errorX("Can't find" . (defined($label) ? " $label" : "") . " file: '$file'");
+}
+#return an error if file does not Exist
+sub checkDir($;$) {
+    my $dir = shift;
+    return if(-d $dir);
+    my $label = shift;
+    errorX("Can't find" . (defined($label) ? " $label" : "") . " directory: '$dir'");
+}
+
+sub checkMove($$) {
+    my ($old,$new) = @_;
+    move($old,$new) || errorX("File move failed: $!\n\tAttempting to move '$old' to '$new'");
+}
+
+
+
+
+=item getAbsPath($path)
+
+This procedure attempts to convert a path provided by the user on the
+command line into an absolute path. It should be able to handle "~"
+paths and conventional relative paths using ".." or ".". Resolution of
+links should follow the convention of "Cwd::realpath".
+
+B<Parameters:>
+
+    $dirRef         - path (converted to absolute path in place)
+
+B<Returns:>
+
+    returns zero if successful, non-zero otherwise.
+
+=cut
+sub getAbsPath(\$) {
+    my ($dirRef) = @_;
+    my @tmp=glob($$dirRef);
+    return 1 if(scalar(@tmp) != 1);
+    my $ret = Cwd::realpath($tmp[0]);
+    return 1 if !$ret && !($ret = File::Spec->rel2abs($tmp[0]));
+    $$dirRef = $ret;
+    return 0;
+}
+
+
+#verify path is not a file, then create a directory with this name if does not exist
+sub checkMakeDir($) {
+    my $dir = shift;
+    unless (-e $dir) {
+        File::Path::mkpath($dir) || errorX("Can't create directory '$dir'");
+    } else {
+        errorX("Path is not a directory '$dir'\n") unless(-d $dir);
+    }
+}
+
+
+
+sub getBinList($$) {
+    my ($chromSize,$binSize) = @_;
+
+    my $nm1 = (($chromSize-1) / $binSize);
+    return [ map {sprintf("%04i",$_)} (0..$nm1) ];
+}
+
+
+
+sub parseConfigError($$) {
+    my ($file,$line) = @_;
+    errorX("Config file '$file' contains unexpected line '$line'\n");
+}
+
+#lis le fichier de config, si la ligne est de type : some space + [ some character ] + some space then register ther character in $section. (   [user]   , then $section=user).   
+sub parseConfigIni($) {
+    my $file = shift;
+    my %config;
+    open(my $FH,"< $file") || errorX("Can't open config file '$file'");
+    my $section = "noSection";
+    while(<$FH>) {
+        next if(/^[;#]/);
+        next if(/^\s*$/);
+        chomp;
+        my $line=$_;
+        my @ncl = split(/[;#]/);
+        next unless(scalar(@ncl));
+        my $nc = $ncl[0];
+        if($nc =~ /^\s*\[([^\]]*)\]\s*$/) {
+            $section = $1;
+            next;
+        }
+        my ($key,$val) = map { s/^\s+//; s/\s+$//; $_ } split(/=/,$nc,2);
+        unless(defined($key) && defined($val) && ($key ne "")) { parseConfigError($file,$line); }
+
+        $config{$section}{$key} = $val;
+    }
+    close($FH);
+    return \%config;
+}
+
+
+# minimal ini stringifier:
+#
+sub writeConfigIni($) {
+    my $config = shift;
+    my $val = "";
+    for my $section (sort(keys(%$config))) {
+        $val .= "\n[$section]\n";
+        for my $key (sort(keys(%{$config->{$section}}))) {
+            $val .= "$key = " . $config->{$section}{$key} . "\n";
+        }
+    }
+    return $val;
+}
+
+
+1;