Copy cdb.exe into telemetry_chrome_test's isolate.

build/win/copy_cdb_to_output.py

Index: build/win/copy_cdb_to_output.py
diff --git a/build/win/copy_cdb_to_output.py b/build/win/copy_cdb_to_output.py
new file mode 100755
index 0000000000000000000000000000000000000000..c3c2581e471ce8893ffa79bf7f38c3d04057aea5
--- /dev/null
+++ b/build/win/copy_cdb_to_output.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+# Copyright 2016 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 hashlib
+import os
+import shutil
+import sys
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+src_build_dir = os.path.abspath(os.path.join(script_dir, os.pardir))
+sys.path.insert(0, src_build_dir)
+
+import vs_toolchain
+
+
+def _HexDigest(file_name):
+  hasher = hashlib.sha256()
+  afile = open(file_name, 'rb')

[Dirk Pranke, 2016/04/07 21:38:39]

nit: you need to close() afile.

+  blocksize = 65536
+  buf = afile.read(blocksize)
+  while len(buf) > 0:
+    hasher.update(buf)
+    buf = afile.read(blocksize)
+  return hasher.hexdigest()
+
+
+def _CopyImpl(file_name, target_dir, source_dir, verbose=True):
+  """Copy |source| to |target| if it doesn't already exist or if it
+  needs to be updated.
+  """
+  target = os.path.join(target_dir, file_name)
+  source = os.path.join(source_dir, file_name)
+  if (os.path.isdir(os.path.dirname(target)) and
+      ((not os.path.isfile(target)) or
+       _HexDigest(source) != _HexDigest(target))):
+    if verbose:
+      print 'Copying %s to %s...' % (source, target)
+    if os.path.exists(target):
+      os.unlink(target)
+    shutil.copy(source, target)
+
+
+def _CopyCDBToOutput(output_dir, target_arch):
+  """Copies the Windows debugging executable cdb.exe to the output
+  directory, which is created if it does not exist. The output
+  directory, and target architecture that should be copied, are
+  passed. Supported values for the target architecture are the GYP
+  values "ia32" and "x64".
+  """
+  if not os.path.isdir(output_dir):
+    os.makedirs(output_dir)
+  vs_toolchain.SetEnvironmentAndGetRuntimeDllDirs()
+  win_sdk_dir = os.path.normpath(os.environ['WINDOWSSDKDIR'])
+  if target_arch == 'ia32':
+    src_arch = 'x86'
+  elif target_arch == 'x64':
+    src_arch = 'x64'
+  else:
+    print 'copy_cdb_to_output.py: unknown target_arch %s' % target_arch
+    sys.exit(1)
+  # We need to copy multiple files, so cache the computed source directory.
+  src_dir = os.path.join(win_sdk_dir, 'Debuggers', src_arch)
+  # Note that the outputs from the "copy_cdb_to_output" target need to
+  # be kept in sync with this list.
+  _CopyImpl('cdb.exe', output_dir, src_dir)
+  _CopyImpl('dbgeng.dll', output_dir, src_dir)
+  _CopyImpl('dbghelp.dll', output_dir, src_dir)
+  _CopyImpl('dbgmodel.dll', output_dir, src_dir)
+  return 0
+
+
+def main():
+  if len(sys.argv) < 2:
+    print >>sys.stderr, 'Usage: copy_cdb_to_output.py <output_dir> ' + \
+        '<target_arch>'
+    return 1
+  return _CopyCDBToOutput(sys.argv[1], sys.argv[2])
+
+
+if __name__ == '__main__':
+  sys.exit(main())