add sabayon-tbz2truncate

sabayon-tbz2extract

@@ -0,0 +1,39 @@
+#!/usr/bin/python
+# mudler <mudler@sabayon.org>
+# Edit: create a truncated tbz2 with just data
+import os
+import sys
+from portage import xpak
+
+def usage():
+        sys.stderr.write("usage: %s <tbz2_file>\n" % os.path.basename(sys.argv[0]))
+
+def main():
+        if len(sys.argv) != 2:
+                usage()
+                return 1
+
+        input_file = sys.argv[1]
+
+        if not os.path.isfile(input_file):
+                usage()
+                return 1
+
+        output_file = input_file
+        if output_file.endswith('.tbz2'):
+                output_file = output_file[:-5]
+        output_file += '.truncated'
+
+        t = xpak.tbz2(input_file)
+        t.scan()
+        f = open(input_file, 'rb')
+        data = f.read(os.stat(input_file).st_size  - t.xpaksize)
+        f.close()
+
+        f = open(output_file, 'wb')
+        f.write(data)
+        f.close()
+        return 0
+
+if __name__ == '__main__':
+        sys.exit(main())

sabayon-tbz2truncate

@@ -0,0 +1,32 @@
+#!/usr/bin/python
+# mudler <mudler@sabayon.org>
+# Edit: truncate a tbz2 with just data
+import os
+import sys
+from portage import xpak
+
+def usage():
+        sys.stderr.write("usage: %s <tbz2_file>\n" % os.path.basename(sys.argv[0]))
+
+def main():
+        if len(sys.argv) != 2:
+                usage()
+                return 1
+
+        input_file = sys.argv[1]
+
+        if not os.path.isfile(input_file):
+                usage()
+                return 1
+
+        t = xpak.tbz2(input_file)
+        t.scan()
+        f = open(input_file, 'r+')
+        f.seek(-t.xpaksize, os.SEEK_END)
+        f.truncate()
+        f.close()
+
+        return 0
+
+if __name__ == '__main__':
+        sys.exit(main())

sabayon-xpakextract

@@ -0,0 +1,39 @@
+#!/usr/bin/python
+
+import os
+import sys
+from portage import xpak
+
+def usage():
+        sys.stderr.write("usage: %s <tbz2_file>\n" % os.path.basename(sys.argv[0]))
+
+def main():
+        if len(sys.argv) != 2:
+                usage()
+                return 1
+
+        input_file = sys.argv[1]
+
+        if not os.path.isfile(input_file):
+                usage()
+                return 1
+
+        output_file = input_file
+        if output_file.endswith('.tbz2'):
+                output_file = output_file[:-5]
+        output_file += '.xpak'
+
+        t = xpak.tbz2(input_file)
+        t.scan()
+        f = open(input_file, 'rb')
+        f.seek(-t.xpaksize, 2)
+        data = f.read()
+        f.close()
+
+        f = open(output_file, 'wb')
+        f.write(data)
+        f.close()
+        return 0
+
+if __name__ == '__main__':
+        sys.exit(main())