Throw away everything in the go workspace except bin.

build_apprtc_collider.py

 #!/usr/bin/python
 # Copyright 2014 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.
 
 """Builds the AppRTC collider using the golang toolchain.
 
 The golang toolchain is downloaded by download_golang.py. We use that here
 to build the AppRTC collider server.
 """
 
 import os
 import shutil
 import subprocess
 import sys
+import tempfile
 
 import utils
 
 
 def main():
   apprtc_dir = os.path.join('apprtc', 'src')
   golang_workspace = os.path.join('src', 'out', 'go-workspace')
   utils.RemoveDirectory(golang_workspace)
 
   golang_workspace_src = os.path.join(golang_workspace, 'src')
 
   collider_dir = os.path.join(apprtc_dir, 'collider')
   shutil.copytree(collider_dir, golang_workspace_src,
                   ignore=shutil.ignore_patterns('.svn', '.git'))
 
   golang_binary = 'go%s' % ('.exe' if utils.GetPlatform() == 'win' else '')
   golang_path = os.path.join('go', 'bin', golang_binary)
 
   golang_env = os.environ.copy()
   golang_env['GOROOT'] = os.path.abspath('go')
   golang_env['GOPATH'] = os.path.abspath(golang_workspace)
   golang_env['PATH'] += os.pathsep + os.path.abspath('mercurial')
   subprocess.check_call([golang_path, 'get', 'collidermain'],
                         env=golang_env)
   subprocess.check_call([golang_path, 'build', 'collidermain'],
                         env=golang_env)
 
+  # Delete everything in the workspace except the build artifacts.
+  go_bin_dir = os.path.join(golang_workspace, 'bin')
+  tmp_dir = tempfile.mkdtemp()
+  shutil.move(go_bin_dir, tmp_dir)
+  shutil.rmtree(golang_workspace)

[kjellander_chromium, 2016/02/09 16:27:29]

If you remove src/out/go-workspace here, then trying to move the bin dir to
src/out/go-workspace/bin below should fail, since shutil.move doesn't re-create
the src/out/go-workspace dir for you, I suppose? 

+  shutil.move(os.path.join(tmp_dir, 'bin'), go_bin_dir)
+  os.rmdir(tmp_dir)
+
 if __name__ == '__main__':
   sys.exit(main())