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authorweili <weili@chromium.org>2016-04-27 14:06:57 -0700
committerCommit bot <commit-bot@chromium.org>2016-04-27 14:06:57 -0700
commit590f2d9e057a0d5b17a9706affd3c6115265021b (patch)
treece150bddb1cdb6ebf25ce323d342035ad49d1327 /build_gyp/find_depot_tools.py
parentcf83a5115a366853a8940a2cfff8c1363fdade9e (diff)
downloadpdfium-590f2d9e057a0d5b17a9706affd3c6115265021b.tar.xz
Use visual studio toolchain from depot_tools for PDFium compilation
Change to use visual studio toolchain from depot_tools by default. Setting DEPOT_TOOLS_WIN_TOOLCHAIN=0 allows compilation using system toolchain as before. Using toolchain from depot_tools unifies the compilation environment, and brings the benefits of automated update, bug fixes etc. Review-Url: https://codereview.chromium.org/1897523002
Diffstat (limited to 'build_gyp/find_depot_tools.py')
-rw-r--r--build_gyp/find_depot_tools.py60
1 files changed, 60 insertions, 0 deletions
diff --git a/build_gyp/find_depot_tools.py b/build_gyp/find_depot_tools.py
new file mode 100644
index 0000000000..6ec83b3d5c
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+++ b/build_gyp/find_depot_tools.py
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+#!/usr/bin/env python
+# Copyright 2016 PDFium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+"""Small utility function to find depot_tools and add it to the python path.
+
+Will throw an ImportError exception if depot_tools can't be found since it
+imports breakpad.
+
+This can also be used as a standalone script to print out the depot_tools
+directory location.
+"""
+
+import os
+import sys
+
+
+def IsRealDepotTools(path):
+ return os.path.isfile(os.path.join(path, 'gclient.py'))
+
+
+def add_depot_tools_to_path():
+ """Search for depot_tools and add it to sys.path."""
+ # First look if depot_tools is already in PYTHONPATH.
+ for i in sys.path:
+ if i.rstrip(os.sep).endswith('depot_tools') and IsRealDepotTools(i):
+ return i
+ # Then look if depot_tools is in PATH, common case.
+ for i in os.environ['PATH'].split(os.pathsep):
+ if IsRealDepotTools(i):
+ sys.path.append(i.rstrip(os.sep))
+ return i
+ # Rare case, it's not even in PATH, look upward up to root.
+ root_dir = os.path.dirname(os.path.abspath(__file__))
+ previous_dir = os.path.abspath(__file__)
+ while root_dir and root_dir != previous_dir:
+ i = os.path.join(root_dir, 'depot_tools')
+ if IsRealDepotTools(i):
+ sys.path.append(i)
+ return i
+ previous_dir = root_dir
+ root_dir = os.path.dirname(root_dir)
+ print >> sys.stderr, 'Failed to find depot_tools'
+ return None
+
+DEPOT_TOOLS_PATH = add_depot_tools_to_path()
+
+# pylint: disable=W0611
+import breakpad
+
+
+def main():
+ if DEPOT_TOOLS_PATH is None:
+ return 1
+ print DEPOT_TOOLS_PATH
+ return 0
+
+
+if __name__ == '__main__':
+ sys.exit(main())