Support for copying commands.

README.md

@@ -26,6 +26,7 @@ option:
 
 At present docker-rerun supports a small number of commonly used arguments:
 
+    * Commands (trailing arguments)
     * Names (--name)
     * Networks (--net)
     * Port publications (-p)
@@ -36,7 +37,6 @@ At present docker-rerun supports a small number of commonly used arguments:
 
 Many other command line arguments:
 
-    * Commands
     * Environment variables
     * Labels
     * Linking and aliases

docker-rerun

@@ -84,6 +84,15 @@ def handle_binds(container):
                                  lambda c: c['HostConfig']['Binds'])
 
 
+def handle_command(container):
+    """Copies the command (trailing arguments)."""
+    cont_cmd = container.info['Config']['Cmd']
+    image_cmd = container.image_info['Config']['Cmd']
+
+    if cont_cmd != image_cmd:
+        container.cmd = cont_cmd
+
+
 def handle_image(container):
     """Copies the image argument."""
     container.image = container.info['Config']['Image']

test.py

@@ -16,6 +16,8 @@ class RerunTest(unittest.TestCase):
     def test_command_matches(self):
         commands = [
             'docker run --name=test123 -d hello-world',
+            'docker run --name=test123 -d hello-world:latest',
+            'docker run --name=test123 -d hello-world /hello world...',
             'docker run --name=test123 --restart=always -d hello-world',
             'docker run --name=test123 --restart=on-failure:10 -d hello-world',
             'docker run --name=test123 --net=host -d hello-world',