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1#!/usr/bin/python2.6
2
3import httplib, json, optparse, os, urllib, shutil, subprocess, sys
4
5output_css_file = 'style.css'
6output_js_file = 'script.js'
7
8upstream_svn = 'http://trace-viewer.googlecode.com/svn/trunk/'
9
10script_dir = os.path.dirname(os.path.abspath(sys.argv[0]))
11trace_viewer_dir = os.path.join(script_dir, 'trace-viewer')
12
13parser = optparse.OptionParser()
14parser.add_option('--local', dest='local_dir', metavar='DIR',
15                  help='use a local trace-viewer')
16parser.add_option('--no-min', dest='no_min', default=False, action='store_true',
17                  help='skip minification')
18options, args = parser.parse_args()
19
20if options.local_dir is None:
21  # Remove the old source
22  shutil.rmtree(trace_viewer_dir, True)
23
24  # Pull the latest source from the upstream svn
25  svn_co_args = ['svn', 'co', upstream_svn, trace_viewer_dir]
26  p = subprocess.Popen(svn_co_args, stdout=subprocess.PIPE)
27  svn_output = ''
28  while p.poll() is None:
29    svn_output += p.stdout.read()
30  if p.returncode != 0:
31    print 'Failed to checkout source from upstream svn.'
32    sys.exit(1)
33
34  # Update the UPSTREAM_REVISION file
35  rev_str = svn_output.split('\n')[-2]
36  if not rev_str.startswith('Checked out revision '):
37    print 'Unrecognized revision string: %q' % rev_str
38  open('UPSTREAM_REVISION', 'wt').write(rev_str[21:-1] + '\n')
39else:
40  trace_viewer_dir = options.local_dir
41
42# Generate the flattened JS and CSS
43build_dir = os.path.join(trace_viewer_dir, 'build')
44sys.path.append(build_dir)
45gen = __import__('generate_standalone_timeline_view', {}, {})
46js_code = gen.generate_js()
47css_code = gen.generate_css()
48
49if options.no_min:
50  open(output_js_file, 'wt').write(js_code)
51  print 'Generated %s' % output_js_file
52  open(output_css_file, 'wt').write(css_code)
53  print 'Generated %s' % output_css_file
54else:
55  # Define the parameters for the POST request and encode them in
56  # a URL-safe format.
57  params = urllib.urlencode([
58    ('js_code', js_code),
59    ('language', 'ECMASCRIPT5'),
60    ('compilation_level', 'SIMPLE_OPTIMIZATIONS'),
61    ('output_format', 'json'),
62    ('output_info', 'errors'),
63    ('output_info', 'compiled_code'),
64  ])
65
66  # Always use the following value for the Content-type header.
67  headers = { "Content-type": "application/x-www-form-urlencoded" }
68  conn = httplib.HTTPConnection('closure-compiler.appspot.com')
69  conn.request('POST', '/compile', params, headers)
70  response = conn.getresponse()
71  data = response.read()
72  conn.close
73
74  if response.status != 200:
75    print sys.stderr, "error returned from JS compile service: %d" % response.status
76    sys.exit(1)
77
78  result = json.loads(data)
79  if 'errors' in result:
80    print 'Encountered error minifying Javascript.  Writing intermediate code to flat_script.js'
81    open('flat_script.js', 'wt').write(js_code)
82    for e in result['errors']:
83      filenum = int(e['file'][6:])
84      filename = 'flat_script.js'
85      lineno = e['lineno']
86      charno = e['charno']
87      err = e['error']
88      print '%s:%d:%d: %s' % (filename, lineno, charno, err)
89    print 'Failed to generate %s.' % output_js_file
90    sys.exit(1)
91
92  open(output_js_file, 'wt').write(result['compiledCode'] + '\n')
93  print 'Generated %s' % output_js_file
94
95  yuic_args = ['yui-compressor', '--type', 'css', '-o', output_css_file]
96  p = subprocess.Popen(yuic_args, stdin=subprocess.PIPE)
97  p.communicate(input=css_code)
98  if p.wait() != 0:
99    print 'Failed to generate %s.' % output_css_file
100    sys.exit(1)
101
102  print 'Generated %s' % output_css_file
103