From 9118413608e277b4500130bc2117400f9d9b0201 Mon Sep 17 00:00:00 2001
From: Eric Boren <borenet@google.com>
Date: Mon, 16 Jun 2014 10:02:42 -0400
Subject: Enable compiling with automatically-downloaded VS toolchain on
 Windows bots

Requires that the bots have CHROME_HEADLESS=1 and CHROME_PATH set.

BUG=skia:2216
R=epoger@google.com

Review URL: https://codereview.chromium.org/332833002
---
 gyp_skia | 10 ++++++++++
 make.bat |  3 +++
 make.py  |  5 +++--
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/gyp_skia b/gyp_skia
index be90916c58..1f3f337e7e 100755
--- a/gyp_skia
+++ b/gyp_skia
@@ -93,6 +93,16 @@ if __name__ == '__main__':
     os.environ[ENVVAR_GYP_GENERATORS] = default_gyp_generators
   print '%s is "%s"' % (ENVVAR_GYP_GENERATORS, os.getenv(ENVVAR_GYP_GENERATORS))
 
+  if os.getenv('CHROME_HEADLESS', '0') == '1':
+    if sys.platform.startswith('win') or sys.platform.startswith('cygwin'):
+      chrome_path = os.getenv('CHROME_PATH')
+      os.chdir(chrome_path)
+      sys.path.append(os.path.join(chrome_path, 'build'))
+      sys.path.append(os.path.join(chrome_path, 'tools'))
+      import vs_toolchain
+      vs_toolchain.Update()
+      vs_toolchain.GetToolchainDir()
+
   # Set CWD to the directory containing this script.
   # This allows us to launch it from other directories, in spite of gyp's
   # finickyness about the current working directory.
diff --git a/make.bat b/make.bat
index a9961074e3..2b6a629ff3 100644
--- a/make.bat
+++ b/make.bat
@@ -7,6 +7,9 @@
 rem Launches make.py on Windows, after setting Visual Studio environment variables.
 rem See http://code.google.com/p/skia/wiki/GettingStartedOnWindows
 
+rem Skip environment setup on bots.
+if "%CHROME_HEADLESS%"=="1" goto run_python
+
 if "%DevEnvDir%"=="" goto setup_env_vars
 
 :run_python
diff --git a/make.py b/make.py
index fc959a05ce..cb6c2a47fa 100644
--- a/make.py
+++ b/make.py
@@ -92,8 +92,9 @@ def MakeWindows(targets):
     parameters:
         targets: build targets as a list of strings
     """
-    # TODO(epoger): I'm not sure if this is needed for ninja builds.
-    CheckWindowsEnvironment()
+    if os.environ.get('CHROME_HEADLESS', '0') != '1':
+        # TODO(epoger): I'm not sure if this is needed for ninja builds.
+        CheckWindowsEnvironment()
 
     # Run gyp_skia to prepare Visual Studio projects.
     cd(SCRIPT_DIR)
-- 
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