Index: tools/omahaproxy.py |
diff --git a/tools/omahaproxy.py b/tools/omahaproxy.py |
new file mode 100755 |
index 0000000000000000000000000000000000000000..9ba956f70da7377b14aa71a62eafb393bf72d44c |
--- /dev/null |
+++ b/tools/omahaproxy.py |
@@ -0,0 +1,109 @@ |
+#!/usr/bin/env python |
+# Copyright (c) 2013 The Chromium Authors. All rights reserved. |
+# Use of this source code is governed by a BSD-style license that can be |
+# found in the LICENSE file. |
+ |
+"""Chrome Version Tool |
+ |
+A simple script to scrape the Chrome channel information and print out the |
M-A Ruel
2013/01/09 23:45:21
Scrapes the ..
I know it's simple. :)
scherkus (not reviewing)
2013/01/10 01:03:48
Hah! Done!
|
+requested nugget of information. |
+""" |
+ |
+import optparse |
+import os.path |
M-A Ruel
2013/01/09 23:45:21
Sort.
and in general we just "import os".
scherkus (not reviewing)
2013/01/10 01:03:48
Done.
|
+import json |
+import urllib |
+import string |
+import sys |
+ |
+URL = 'http://omahaproxy.appspot.com/json' |
M-A Ruel
2013/01/09 23:45:21
https?
scherkus (not reviewing)
2013/01/10 01:03:48
Done.
|
+ |
M-A Ruel
2013/01/09 23:45:21
2 lines
scherkus (not reviewing)
2013/01/10 01:03:48
Done.
|
+def main(): |
+ try: |
+ data = json.load(urllib.urlopen(URL)) |
+ except: |
M-A Ruel
2013/01/09 23:45:21
except Exception as e:
then print str(e)? It's use
scherkus (not reviewing)
2013/01/10 01:03:48
Done.
|
+ print 'Error: could not load %s' % URL |
+ return 1 |
+ |
+ # Iterate to find out valid values for OS, channel, and field options. |
+ oses = set() |
+ channels = set() |
+ fields = set() |
+ |
+ for os_versions in data: |
+ oses.add(os_versions['os']) |
+ |
+ for version in os_versions['versions']: |
+ for field in version: |
+ if field == 'channel': |
+ channels.add(version['channel']) |
+ else: |
+ fields.add(field) |
+ |
+ oses = sorted(oses) |
+ channels = sorted(channels) |
+ fields = sorted(fields) |
+ |
+ # Command line parsing fun begins! |
+ usage = ('%prog [options]\n' |
+ 'Print out information about a particular Chrome channel.') |
+ parser = optparse.OptionParser(usage=usage) |
+ |
+ parser.add_option('-o', '--os', |
+ choices = oses, |
M-A Ruel
2013/01/09 23:45:21
No space around =
scherkus (not reviewing)
2013/01/10 01:03:48
Done.
|
+ default = 'win', |
+ help = 'The operating system of interest: %s ' |
+ '[default: %%default]' % ', '.join(oses)) |
+ parser.add_option('-c', '--channel', |
+ choices = channels, |
+ help = 'The channel of interest: %s' % ', '.join(channels)) |
+ parser.add_option('-f', '--field', |
+ choices = fields, |
+ default = 'version', |
+ help = 'The field of interest: %s ' |
+ '[default: %%default] ' % ', '.join(fields)) |
+ (opts, args) = parser.parse_args() |
+ |
+ if len(sys.argv) == 1: |
+ parser.print_help() |
+ return 1 |
+ |
+ if opts.os is None: |
M-A Ruel
2013/01/09 23:45:21
It can't be None? If someone specifies --os foo, I
scherkus (not reviewing)
2013/01/10 01:03:48
You are correct!
This is also means I don't need
|
+ print 'Error: invalid OS' |
+ parser.print_help() |
+ return 1 |
+ |
+ if opts.channel is None: |
+ print 'Error: invalid channel' |
M-A Ruel
2013/01/09 23:45:21
parser.error('Please use --channel')
No need to r
scherkus (not reviewing)
2013/01/10 01:03:48
No longer needed.
|
+ parser.print_help() |
+ return 1 |
+ |
+ if opts.field is None: |
+ print 'Error: invalid field' |
M-A Ruel
2013/01/09 23:45:21
Same
scherkus (not reviewing)
2013/01/10 01:03:48
No longer needed.
|
+ parser.print_help() |
+ return 1 |
+ |
+ # Print out requested data if available. |
+ for os_versions in data: |
+ if os_versions['os'] != opts.os: |
+ continue |
+ |
+ for version in os_versions['versions']: |
+ if version['channel'] != opts.channel: |
+ continue |
+ |
+ if opts.field not in version: |
+ continue |
+ |
+ print version[opts.field] |
+ return 0 |
+ |
+ print 'Error: unable to find %s for Chrome %s %s.' % ( |
+ opts.field, opts.os, opts.channel) |
+ return 1 |
+ |
+if __name__ == '__main__': |
+ sys.exit(main()) |