# HG changeset patch
# User Atul Varma <varmaa@toolness.com>
# Date 1228772254 28800
# Node ID 05cece4371a40ed9110cf6d7ab56242cb0b66a93
# Parent  cb08fb8f0e875c96ce102eb1759605fe8c3a7a55
Added an undo option, though it's not implemented yet.

diff -r cb08fb8f0e87 -r 05cece4371a4 kharon.py
--- a/kharon.py	Mon Dec 08 13:27:07 2008 -0800
+++ b/kharon.py	Mon Dec 08 13:37:34 2008 -0800
@@ -42,6 +42,9 @@
         shell('mkdir', HADES_DIR)
 
     parser = OptionParser()
+    parser.add_option('-u', '--undo',
+                      dest='undo', action='store_true', default=False,
+                      help='undo a transaction (default is latest).')
     (options, args) = parser.parse_args()
 
     if not args:
@@ -49,23 +52,27 @@
         sys.exit(-1)
 
     config = Config(STATE_FILENAME)
-    files = []
-    for arg in args:
-        filename = os.path.abspath(os.path.expanduser(arg))
-        if not os.path.exists(filename):
-            print('File does not exist: %s' % arg)
-            sys.exit(-1)
-        files.append(filename)
+
+    if options.undo:
+        raise NotImplementedError('Undo not implemented yet.')
+    else:
+        files = []
+        for arg in args:
+            filename = os.path.abspath(os.path.expanduser(arg))
+            if not os.path.exists(filename):
+                print('File does not exist: %s' % arg)
+                sys.exit(-1)
+            files.append(filename)
 
-    thisid = config.nextid
-    basedir = os.path.join(HADES_DIR, '%.9d' % thisid)
-    shell('mkdir', basedir)
-    config.nextid = thisid + 1
-    config.save()
+        thisid = config.nextid
+        basedir = os.path.join(HADES_DIR, '%.9d' % thisid)
+        shell('mkdir', basedir)
+        config.nextid = thisid + 1
+        config.save()
 
-    print("Creating transaction %d." % thisid)
+        print("Creating transaction %d." % thisid)
 
-    for source in files:
-        dest = os.path.join(basedir, filename[1:])
-        distutils.dir_util.mkpath(os.path.dirname(dest))
-        shell('mv', source, dest)
+        for source in files:
+            dest = os.path.join(basedir, filename[1:])
+            distutils.dir_util.mkpath(os.path.dirname(dest))
+            shell('mv', source, dest)