Tool to graph unwanted dependencies (browser->webcore currently)

Run as "python tools\win\split_link\graph_dependencies.py output.html" Outputs a standalone html file so it can go on simple bot storage (coming at some point). R=jamesr@chromium.org BUG=237249 Review URL: https://codereview.chromium.org/16196002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202896 0039d316-1c4b-4281-b951-d872f2087c98

Tool to graph unwanted dependencies (browser->webcore currently)
Run as "python tools\win\split_link\graph_dependencies.py output.html" Outputs a standalone html file so it can go on simple bot storage (coming at some point). R=jamesr@chromium.org BUG=237249 Review URL: https://codereview.chromium.org/16196002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202896 0039d316-1c4b-4281-b951-d872f2087c98
1112d6c6 · scottmg@chromium.org · a1b5ca87 · 1112d6c6 · 1112d6c6 · 1112d6c6
Commit 1112d6c6 authored May 29, 2013 by scottmg@chromium.org
3 changed files
--- a/tools/win/split_link/graph_dependencies.py
+++ b/tools/win/split_link/graph_dependencies.py
+# Copyright 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.
+
+import os
+import shutil
+import subprocess
+import sys
+
+
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+
+
+def main():
+  if len(sys.argv) != 2:
+    print 'usage: %s <output.html>' % sys.argv[0]
+    return 1
+  env = os.environ.copy()
+  env['GYP_GENERATORS'] = 'dump_dependency_json'
+  print 'Dumping dependencies...'
+  popen = subprocess.Popen(
+      ['python', 'build/gyp_chromium'],
+      shell=True, env=env)
+  popen.communicate()
+  if popen.returncode != 0:
+    return popen.returncode
+  print 'Finding problems...'
+  popen = subprocess.Popen(
+      ['python', 'tools/gyp-explain.py', '--dot',
+       'chrome.gyp:browser#', 'core.gyp:webcore#'],
+      stdout=subprocess.PIPE,
+      shell=True)
+  out, _ = popen.communicate()
+  if popen.returncode != 0:
+    return popen.returncode
+
+  # Break into pairs to uniq to make graph less of a mess.
+  print 'Simplifying...'
+  deduplicated = set()
+  lines = out.splitlines()[2:-1]
+  for line in lines:
+    line = line.strip('\r\n ;')
+    pairs = line.split(' -> ')
+    for i in range(len(pairs) - 1):
+      deduplicated.add('%s -> %s;' % (pairs[i], pairs[i + 1]))
+  graph = 'strict digraph {\n' + '\n'.join(sorted(deduplicated)) + '\n}'
+
+  print 'Writing report to %s...' % sys.argv[1]
+  path_count = len(out.splitlines())
+  with open(os.path.join(BASE_DIR, 'viz.js', 'viz.js')) as f:
+    viz_js = f.read()
+  with open(sys.argv[1], 'w') as f:
+    f.write(PREFIX % path_count)
+    f.write(graph)
+    f.write(SUFFIX % viz_js)
+  print 'Done.'
+
+
+PREFIX = r'''<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>Undesirable Dependencies</title>
+  </head>
+  <body>
+    <h1>Undesirable Dependencies</h1>
+<h2>browser &rarr; webcore</h2>
+<h3>%d paths</h3>
+    <script type="text/vnd.graphviz" id="graph">
+'''
+
+
+SUFFIX = r'''
+    </script>
+    <script>%s</script>
+    <div id="output">Rendering...</div>
+    <script>
+      setTimeout(function() {
+          document.getElementById("output").innerHTML =
+              Viz(document.getElementById("graph").innerHTML, "svg");
+        }, 1);
+    </script>
+  </body>
+</html>
+'''
+
+
+if __name__ == '__main__':
+  sys.exit(main())
--- a/tools/win/split_link/viz.js/COPYING
+++ b/tools/win/split_link/viz.js/COPYING
--- a/tools/win/split_link/viz.js/viz.js
+++ b/tools/win/split_link/viz.js/viz.js