1 files changed, 99 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/mac/find_sdk.py b/third_party/libwebrtc/build/mac/find_sdk.py
new file mode 100755
index 0000000000..d86f310935
--- /dev/null
+++ b/third_party/libwebrtc/build/mac/find_sdk.py
@@ -0,0 +1,99 @@
+#!/usr/bin/env python
+# Copyright (c) 2012 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.
+r"""Prints the lowest locally available SDK version greater than or equal to a
+given minimum sdk version to standard output.
+
+If --print_sdk_path is passed, then the script will also print the SDK path.
+If --print_bin_path is passed, then the script will also print the path to the
+toolchain bin dir.
+
+Usage:
+  python find_sdk.py     \
+      [--print_sdk_path] \
+      [--print_bin_path] \
+      10.6  # Ignores SDKs < 10.6
+
+Sample Output:
+/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk
+/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/
+10.14
+"""
+
+from __future__ import print_function
+
+import os
+import re
+import subprocess
+import sys
+
+from optparse import OptionParser
+
+
+class SdkError(Exception):
+  def __init__(self, value):
+    self.value = value
+  def __str__(self):
+    return repr(self.value)
+
+
+def parse_version(version_str):
+  """'10.6' => [10, 6]"""
+  return [int(s) for s in re.findall(r'(\d+)', version_str)]
+
+
+def main():
+  parser = OptionParser()
+  parser.add_option("--print_sdk_path",
+                    action="store_true", dest="print_sdk_path", default=False,
+                    help="Additionally print the path the SDK (appears first).")
+  parser.add_option("--print_bin_path",
+                    action="store_true", dest="print_bin_path", default=False,
+                    help="Additionally print the path the toolchain bin dir.")
+  options, args = parser.parse_args()
+  if len(args) != 1:
+    parser.error('Please specify a minimum SDK version')
+  min_sdk_version = args[0]
+
+
+  job = subprocess.Popen(['xcode-select', '-print-path'],
+                         stdout=subprocess.PIPE,
+                         stderr=subprocess.STDOUT)
+  out, err = job.communicate()
+  if job.returncode != 0:
+    print(out, file=sys.stderr)
+    print(err, file=sys.stderr)
+    raise Exception('Error %d running xcode-select' % job.returncode)
+  dev_dir = out.decode('UTF-8').rstrip()
+  sdk_dir = os.path.join(
+      dev_dir, 'Platforms/MacOSX.platform/Developer/SDKs')
+
+  if not os.path.isdir(sdk_dir):
+    raise SdkError('Install Xcode, launch it, accept the license ' +
+      'agreement, and run `sudo xcode-select -s /path/to/Xcode.app` ' +
+      'to continue.')
+  sdks = [re.findall('^MacOSX(\d+\.\d+)\.sdk$', s) for s in os.listdir(sdk_dir)]
+  sdks = [s[0] for s in sdks if s]  # [['10.5'], ['10.6']] => ['10.5', '10.6']
+  sdks = [s for s in sdks  # ['10.5', '10.6'] => ['10.6']
+          if parse_version(s) >= parse_version(min_sdk_version)]
+  if not sdks:
+    raise Exception('No %s+ SDK found' % min_sdk_version)
+  best_sdk = sorted(sdks, key=parse_version)[0]
+
+  if options.print_sdk_path:
+    sdk_name = 'MacOSX' + best_sdk + '.sdk'
+    print(os.path.join(sdk_dir, sdk_name))
+
+  if options.print_bin_path:
+    bin_path = 'Toolchains/XcodeDefault.xctoolchain/usr/bin/'
+    print(os.path.join(dev_dir, bin_path))
+
+  return best_sdk
+
+
+if __name__ == '__main__':
+  if sys.platform != 'darwin':
+    raise Exception("This script only runs on Mac")
+  print(main())
+  sys.exit(0)