Added missing write-mime-multipart.py

tools/write-mime-multipart.py

@@ -0,0 +1,51 @@
+#! /usr/bin/env python
+
+import sys, os
+import email
+import mimetypes
+import re
+
+mimetypes.types_map['.sh'] = 'text/x-shellscript'
+cloud_config_mark_strings = { '#!': 'text/x-shellscript', '#include': 'text/x-include-url',
+    '#cloud-config': 'text/cloud-config', '#upstart-job': 'text/upstart-job',
+    '#cloud-boothook': 'text/cloud-boothook'
+    }
+def write_mime_multipart():
+    multipart_msg = email.mime.Multipart.MIMEMultipart()
+    for arg in sys.argv[1:]:
+        if ',' in arg:
+            (msg_file, msg_type) = arg.split(',')
+        else:
+            msg_file = arg
+            msg_type = None
+
+        msg_file = os.path.expanduser(msg_file)
+        if not os.path.isfile(msg_file):
+            print >> sys.stderr, "Can't find file %s" % arg
+            exit(1)
+
+        if not msg_type: msg_type = get_type_from_file(arg)
+        msg = email.mime.base.MIMEBase(*msg_type.split('/'))
+        msg.set_payload(open(msg_file, 'r').read())
+        multipart_msg.attach(msg)
+
+    print multipart_msg.as_string()
+
+def get_type_from_file(filename):
+    first_line = open(filename).readline()
+    m = re.match('Content-Type: (\w+/\w+)', first_line)
+    if m:
+        return m.groups[1]
+    else:
+        for mark_string, mime_type in cloud_config_mark_strings.items():
+            if first_line.startswith(mark_string):
+                return mime_type
+    return mimetypes.guess_type(filename)[0] or 'text/plain'
+
+if __name__ == '__main__':
+    if len(sys.argv) == 1 or '-h' in sys.argv or '--help' in sys.argv:
+        print "Usage: %s file1,application/cloud-config file2.sh ..." % os.path.basename(sys.argv[0])
+        print "MIME Multipart message will be written to STDOUT"
+        exit(0)
+    write_mime_multipart()
+