[WWcvs] webwork2: backport (dpvc): Allow unpacking of .tar.gz and .tar files in addition to .tgz files.

[Sam H. v. a. <we...@ma...>]

Log Message:
-----------
backport (dpvc): Allow unpacking of .tar.gz and .tar files in addition 
to .tgz files.

Tags:
----
rel-2-4-dev

Modified Files:
--------------
    webwork2/lib/WeBWorK/ContentGenerator/Instructor:
        FileManager.pm

Revision Data
-------------
Index: FileManager.pm
===================================================================
RCS file: /webwork/cvs/system/webwork2/lib/WeBWorK/ContentGenerator/Instructor/FileManager.pm,v
retrieving revision 1.26.2.1
retrieving revision 1.26.2.2
diff -Llib/WeBWorK/ContentGenerator/Instructor/FileManager.pm -Llib/WeBWorK/ContentGenerator/Instructor/FileManager.pm -u -r1.26.2.1 -r1.26.2.2
--- lib/WeBWorK/ContentGenerator/Instructor/FileManager.pm
+++ lib/WeBWorK/ContentGenerator/Instructor/FileManager.pm
@@ -245,7 +245,7 @@
 			var button = document.getElementById('MakeArchive');
 			button.value = 'Make Archive';
 			if (disabled) return;
-			if (!files.childNodes[files.selectedIndex].value.match(/\\.tgz\$/)) return;
+			if (!files.childNodes[files.selectedIndex].value.match(/\\.(tar|tar\\.gz|tgz)\$/)) return;
 			for (var i = files.selectedIndex+1; i < files.length; i++)
 			  {if (files.childNodes[i].selected) return}
 			button.value = 'Unpack Archive';
@@ -711,8 +711,8 @@
 sub UnpackArchive {
 	my $self = shift;
 	my $archive = $self->getFile("unpack"); return unless $archive;
-	if ($archive !~ m/\.tgz$/) {
-		$self->addbadmessage("You can only unpack files ending in '.tgz'");
+	if ($archive !~ m/\.(tar|tar\.gz|tgz)$/) {
+		$self->addbadmessage("You can only unpack files ending in '.tgz', '.tar' or '.tar.gz'");
 	} else {
 		$self->unpack($archive);
 	}
@@ -721,9 +721,9 @@
 
 sub unpack {
 	my $self = shift;
-	my $archive = shift;
+	my $archive = shift; my $z = 'z'; $z = '' if $archive =~ m/\.tar$/;
 	my $dir = $self->{courseRoot}.'/'.$self->{pwd};
-	my $tar = "cd ".shell_quote($dir)." && $self->{ce}{externalPrograms}{tar} -vxzf ".shell_quote($archive);
+	my $tar = "cd ".shell_quote($dir)." && $self->{ce}{externalPrograms}{tar} -vx${z}f ".shell_quote($archive);
 	my @files = readpipe $tar." 2>&1";
 	if ($? == 0) {
 		my $n = scalar(@files); my $s = ($n == 1? "": "s");
@@ -855,7 +855,7 @@
 
 	if (-e $file) {
 	  $self->addgoodmessage("$type file '$name' uploaded successfully");
-	  if ($name =~ m/\.tgz$/ && $self->getFlag('unpack')) {
+	  if ($name =~ m/\.(tar|tar\.gz|tgz)$/ && $self->getFlag('unpack')) {
 	    if ($self->unpack($name) && $self->getFlag('autodelete')) {
 	      if (unlink($file)) {$self->addgoodmessage("Archive '$name' deleted")}
 	        else {$self->addbadmessage("Can't delete archive '$name': $!")}