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Unified Diff: tools/omahaproxy.py

Issue 11789004: Add omahaproxy.py for accessing Chrome channel information from the command line. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 11 months ago
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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'
+ print
+ 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.
+ print
+ 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.
+ print
+ 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())
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