changeset 15:82fa5c44fdde

Uploaded

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tar.py	Thu Apr 11 02:19:05 2013 -0400
@@ -0,0 +1,30 @@
+from galaxy.datatypes.metadata import MetadataElement
+import galaxy.util
+from galaxy.datatypes.binary import Binary
+from galaxy.datatypes import metadata
+from galaxy.datatypes.sniff import *
+import tarfile
+
+class Tar( Binary ):
+    """Class describing a BAM binary file"""
+    file_ext = "tar"
+    def sniff( self, filename ):
+        try:
+            if tarfile.is_tarfile(filename):
+				return True
+        except:
+            return False
+
+	def set_peek( self, dataset, is_multi_byte=False ):
+		if not dataset.dataset.purged:
+		dataset.peek  = "Tar file"
+		dataset.blurb = data.nice_size( dataset.get_size() )
+		else:
+		dataset.peek = 'file does not exist'
+		dataset.blurb = 'file purged from disk'
+
+	def display_peek( self, dataset ):
+		try:
+			return dataset.peek
+		except:
+			return "Tar file" 
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