Add clang_win asset

Bug: skia:2679
Change-Id: I7abffae32102a69271b23834a121c51426813e27
Reviewed-on: https://skia-review.googlesource.com/28785
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
diff --git a/infra/bots/assets/clang_win/VERSION b/infra/bots/assets/clang_win/VERSION
new file mode 100644
index 0000000..c227083
--- /dev/null
+++ b/infra/bots/assets/clang_win/VERSION
@@ -0,0 +1 @@
+0
\ No newline at end of file
diff --git a/infra/bots/assets/clang_win/common.py b/infra/bots/assets/clang_win/common.py
new file mode 100755
index 0000000..caa0ad8
--- /dev/null
+++ b/infra/bots/assets/clang_win/common.py
@@ -0,0 +1,26 @@
+#!/usr/bin/env python
+#
+# Copyright 2017 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+"""Common vars used by scripts in this directory."""
+
+
+import os
+import sys
+
+FILE_DIR = os.path.dirname(os.path.abspath(__file__))
+INFRA_BOTS_DIR = os.path.realpath(os.path.join(FILE_DIR, os.pardir, os.pardir))
+
+sys.path.insert(0, INFRA_BOTS_DIR)
+from assets import assets
+
+ASSET_NAME = os.path.basename(FILE_DIR)
+
+
+def run(cmd):
+  """Run a command, eg. "upload" or "download". """
+  assets.main([cmd, ASSET_NAME] + sys.argv[1:])
diff --git a/infra/bots/assets/clang_win/create.py b/infra/bots/assets/clang_win/create.py
new file mode 100755
index 0000000..0bb5388
--- /dev/null
+++ b/infra/bots/assets/clang_win/create.py
@@ -0,0 +1,43 @@
+#!/usr/bin/env python
+#
+# Copyright 2017 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+"""Create the asset."""
+
+
+import argparse
+import common
+import os
+import subprocess
+import utils
+
+
+CLANG_REVISION = '308728'
+CLANG_SUB_REVISION = '3'
+CLANG_PKG_VERSION = '%s-%s' % (CLANG_REVISION, CLANG_SUB_REVISION)
+GS_URL = ('https://commondatastorage.googleapis.com/chromium-browser-clang'
+          '/Win/clang-%s.tgz' % CLANG_PKG_VERSION)
+
+
+def create_asset(target_dir):
+  """Create the asset."""
+  with utils.chdir(target_dir):
+    tarball = 'clang.tgz'
+    subprocess.check_call(['wget', '-O', tarball, GS_URL])
+    subprocess.check_call(['tar', 'zxvf', tarball])
+    os.remove(tarball)
+
+
+def main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--target_dir', '-t', required=True)
+  args = parser.parse_args()
+  create_asset(args.target_dir)
+
+
+if __name__ == '__main__':
+  main()
diff --git a/infra/bots/assets/clang_win/create_and_upload.py b/infra/bots/assets/clang_win/create_and_upload.py
new file mode 100755
index 0000000..de56a80
--- /dev/null
+++ b/infra/bots/assets/clang_win/create_and_upload.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+#
+# Copyright 2017 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+"""Create the asset and upload it."""
+
+
+import argparse
+import common
+import os
+import subprocess
+import sys
+import utils
+
+
+def main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--gsutil')
+  args = parser.parse_args()
+
+  with utils.tmp_dir():
+    cwd = os.getcwd()
+    create_script = os.path.join(common.FILE_DIR, 'create.py')
+    upload_script = os.path.join(common.FILE_DIR, 'upload.py')
+
+    try:
+      subprocess.check_call(['python', create_script, '-t', cwd])
+      cmd = ['python', upload_script, '-t', cwd]
+      if args.gsutil:
+        cmd.extend(['--gsutil', args.gsutil])
+      subprocess.check_call(cmd)
+    except subprocess.CalledProcessError:
+      # Trap exceptions to avoid printing two stacktraces.
+      sys.exit(1)
+
+
+if __name__ == '__main__':
+  main()
diff --git a/infra/bots/assets/clang_win/download.py b/infra/bots/assets/clang_win/download.py
new file mode 100755
index 0000000..ca999e0
--- /dev/null
+++ b/infra/bots/assets/clang_win/download.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+#
+# Copyright 2017 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+"""Download the current version of the asset."""
+
+
+import common
+
+
+if __name__ == '__main__':
+  common.run('download')
diff --git a/infra/bots/assets/clang_win/upload.py b/infra/bots/assets/clang_win/upload.py
new file mode 100755
index 0000000..bdfbda7
--- /dev/null
+++ b/infra/bots/assets/clang_win/upload.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+#
+# Copyright 2017 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+"""Upload a new version of the asset."""
+
+
+import common
+
+
+if __name__ == '__main__':
+  common.run('upload')