[lnst] misc: Adding recipe_conv script

[Jiří Pírko]

commit 8c335bde7192512b038f7d7c06ca5bf43f27f1e4
Author: Radek Pazdera <rpazdera(a)redhat.com&gt;
Date:   Mon Jul 30 12:21:13 2012 +0200

    misc: Adding recipe_conv script
    
    misc directory was created to store things related to LNST, which doesn't
    fit into any other existing directory.
    
    recipe_conv.py was added to the directory right away. It's a helper
    script, that will convert any unsupported features found in recipes
    to their supported equivalents.
    
    Signed-off-by: Radek Pazdera <rpazdera(a)redhat.com&gt;

 misc/recipe_conv.py |   82 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 82 insertions(+), 0 deletions(-)
---
diff --git a/misc/recipe_conv.py b/misc/recipe_conv.py
new file mode 100755
index 0000000..9bfc74e
--- /dev/null
+++ b/misc/recipe_conv.py
@@ -0,0 +1,82 @@
+#!/usr/bin/env python
+"""
+Recipe converter
+
+This script will help you convert your old recipes with the
+outdated conventions that are now unsupported in LNST.
+
+You can pass a list of files or dirs to it and it will
+remove all recipe-evals and change netdevices in netconfig
+to interfaces.
+
+Copyright 2012 Red Hat, Inc.
+Licensed under the GNU General Public License, version 2 as
+published by the Free Software Foundation; see COPYING for details.
+"""
+
+__author__ = """
+rpazdera(a)redhat.com (Radek Pazdera)
+"""
+
+import sys
+import os
+import re
+from xml.dom.minidom import parse
+
+def change_netdev_to_iface(dom):
+    configs = dom.getElementsByTagName("netconfig")
+    for config in configs:
+        netdevs = config.getElementsByTagName("netdevice")
+        for dev in netdevs:
+            dev.tagName = "interface"
+
+def remove_recipe_eval(dom):
+    opts = dom.getElementsByTagName("option")
+    for opt in opts:
+        if opt.hasAttribute("type"):
+            opt_type = opt.getAttribute("type")
+            if opt_type == "recipe_eval":
+                opt.removeAttribute("type")
+                subscript = opt.getAttribute("value")
+                opt.setAttribute("value", "{$recipe%s}" % subscript)
+
+def convert_recipe(file_path):
+    dom = parse(file_path)
+
+    change_netdev_to_iface(dom)
+    remove_recipe_eval(dom)
+
+    output = dom.toxml()
+    output = re.sub(r"<\?xml[^>]*\?>", "", output)
+
+    writer = open(file_path, "w")
+    writer.write(output)
+    writer.close()
+
+def usage():
+    print "Usage: %s recipe1 recipe2 dir1 ..." % sys.argv[0]
+
+def main():
+    if len(sys.argv) <= 1 or "-h" in sys.argv:
+        usage()
+        return 0
+
+    files = sys.argv[1:]
+
+    for file_path in files:
+        if os.path.isdir(file_path):
+            for root, dirs, file_names in os.walk(file_path):
+                for file_name in file_names:
+                    if re.match(r"^.*\.xml$", file_name):
+                        full_path = "%s/%s" % (root, file_name)
+                        full_path = os.path.normpath(full_path)
+                        print "Converting %s" % full_path
+                        convert_recipe(full_path)
+        else:
+            print "Converting %s" % file_path
+            convert_recipe(file_path)
+    return 0
+
+if __name__ == "__main__":
+    rv = main()
+    sys.exit(rv)