SkMojo: test linking Skia against the Mojo SDK

experimental/mojo/generate.py

Index: experimental/mojo/generate.py
diff --git a/experimental/mojo/generate.py b/experimental/mojo/generate.py
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+++ b/experimental/mojo/generate.py
@@ -0,0 +1,51 @@
+#!/usr/bin/python
+
+# Copyright 2016 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import hashlib
+import os
+import subprocess
+import urllib2
+import stat
+
+def sha1hash(path):
+    hasher = hashlib.sha1()
+    if os.path.isfile(path):
+        with open(path, 'r') as f:
+            hasher.update(f.read())
+    return hasher.hexdigest()
+
+os.chdir(os.path.dirname(__file__))
+
+arg = 'Skia.mojom'
+
+bindings_dir = '../../third_party/externals/mojo/public/tools/bindings'
+xdir = os.path.join(bindings_dir, '/mojom_parser/bin/linux64')
+exe = os.abspath(os.path.join(bindings_dir, 'mojom_bindings_generator.py'))
+bin_dir = os.path.join(bindings_dir, 'mojom_parser/bin/linux64')
+sha_path = os.path.join(bin_dir, 'mojom_parser.sha1')
+parser = os.path.join(bin_dir, 'mojom_parser')
+url = 'https://storage.googleapis.com/mojo/mojom_parser/linux64/%s'
+
+assert os.path.isfile(arg)
+assert os.path.isfile(exe)
+assert os.path.isfile(sha_path)
+
+with open(sha_path, 'r') as f:
+    sha = f.read(40)
+
+if sha1hash(parser) != sha:
+    with open(parser, 'w') as o:
+        o.write(urllib2.urlopen(url % sha).read())
+    rxrxrx = (stat.S_IRUSR | stat.S_IXUSR | stat.S_IRGRP | stat.S_IXGRP |
+              stat.S_IROTH | stat.S_IXOTH)
+    os.chmod(parser, rxrxrx)
+    assert sha1hash(parser) == sha
+
+subprocess.check_call([exe, arg])
+
+os.chdir('../../third_party/externals/mojo/public/interfaces/bindings')
+subprocess.check_call([exe, 'interface_control_messages.mojom'])