From 76d5d79c0ec119cf5e87e71578125081c40c291d Mon Sep 17 00:00:00 2001
From: Soren Hansen <soren@canonical.com>
Date: Tue, 25 Aug 2009 14:46:16 +0200
Subject: Added script handling to appliance config handling. Added test cases
 for this.

---
 ec2-run-user-data.py | 15 +++++++++++++++
 tests.py             | 42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+)

diff --git a/ec2-run-user-data.py b/ec2-run-user-data.py
index 784a1b3f..2917b2fe 100755
--- a/ec2-run-user-data.py
+++ b/ec2-run-user-data.py
@@ -107,6 +107,21 @@ class ApplianceConfig(object):
                     remove_package(pkg)
                 else:
                     install_package(pkg)
+            elif node.tagName == 'script':
+                script = ''
+                for subnode in node.childNodes:
+                    # If someone went through the trouble of wrapping it in CDATA, 
+                    # it's probably the script we want to run..
+                    if subnode.nodeType == root.CDATA_SECTION_NODE:
+                        script = subnode.nodeValue
+                    # ..however, fall back to whatever TEXT_NODE stuff is between
+                    # the <script> tags.
+                    if subnode.nodeType == root.TEXT_NODE and not script:
+                        script = subnode.nodeValue
+                if not script:
+                    # An empty script?
+                    continue
+                content_type_handlers['text/x-shellscript'](script)
 
 def main():
     ec2 = ec2init.EC2Init()
diff --git a/tests.py b/tests.py
index fa3383a2..33c45ec7 100644
--- a/tests.py
+++ b/tests.py
@@ -20,6 +20,48 @@
 
 import unittest
 
+class RunUserDataApplianceConfigScript(unittest.TestCase):
+    def setUp(self):
+        self.ec2_run_user_data = __import__('ec2-run-user-data')
+        self.fake_handle_shell_script_counter = 0
+        self.expected_scripts = []
+        # Override install_remove_package 
+        self.ec2_run_user_data.content_type_handlers['text/x-shellscript'] = self.fake_handle_shell_script
+
+    def fake_handle_shell_script(self, txt):
+        self.fake_handle_shell_script_counter += 1
+        self.assertEqual(self.expected_scripts.pop(0), txt)
+
+    def handle_xml(self, xml):
+        msg = self.ec2_run_user_data.parse_user_data(xml)
+        self.ec2_run_user_data.handle_part(msg)
+
+    def testApplianceConfigPackageScriptSingle(self):
+        script = '''#!/bin/sh
+echo hey'''
+        xml = '<appliance><script>%s</script></appliance>' % script
+        self.expected_scripts += [script]
+        self.handle_xml(xml)
+        self.assertEqual(self.fake_handle_shell_script_counter, 1) 
+
+    def testApplianceConfigPackageScriptMultiple(self):
+        script1 = '''#!/bin/sh
+echo hey'''
+        script2 = '''#!/usr/bin/python
+print "hey"'''
+        xml = '<appliance><script>%s</script><script>%s</script></appliance>' % (script1, script2)
+        self.expected_scripts += [script1, script2]
+        self.handle_xml(xml)
+        self.assertEqual(self.fake_handle_shell_script_counter, 2) 
+
+    def testApplianceConfigPackageScriptCDATA(self):
+        script = '''#!/bin/sh
+echo hey'''
+        xml = '<appliance><script><![CDATA[%s]]></script></appliance>' % (script, )
+        self.expected_scripts += [script]
+        self.handle_xml(xml)
+        self.assertEqual(self.fake_handle_shell_script_counter, 1) 
+
 class RunUserDataApplianceConfigPackageHandling(unittest.TestCase):
     def setUp(self):
         self.fake_install_remove_package_counter = 0
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