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#!/usr/bin/env python
# Copyright 2015 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# This script will update Skia's dependencies as necessary and run
# gyp if needed.
# Depends on: Python, Git, and depot_tools.
#
# Example usage:
#
# git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
# export PATH="${PWD}/depot_tools:${PATH}"
# git clone https://skia.googlesource.com/skia
# cd skia
# python bin/sync-and-gyp
# ninja -C out/Debug && out/Debug/dm
#
# Once changes are made to DEPS or gyp/ or the source, call:
#
# python bin/sync-and-gyp
import fnmatch
import hashlib
import subprocess
import os
import sys
skia_dir = os.path.join(os.path.dirname(__file__), os.pardir)
skia_out = os.environ.get("SKIA_OUT")
if skia_out:
skia_out = os.path.abspath(skia_out)
hash_path = os.path.join(skia_out, 'gyp_hash')
else:
hash_path = os.path.join('out', 'gyp_hash')
os.chdir(skia_dir)
if not os.path.isfile('DEPS'):
sys.stderr.write('DEPS file missing')
exit(1)
deps_hasher = hashlib.sha1()
with open('DEPS', 'r') as f:
deps_hasher.update(f.read())
deps_hash = deps_hasher.hexdigest()
current_deps_hash = None
if os.path.isfile('.deps_sha1'):
with open('.deps_sha1', 'r') as f:
current_deps_hash = f.read().strip()
default_gclient_config = '''
solutions = [
{ "name" : ".",
"url" : "https://skia.googlesource.com/skia.git",
"deps_file" : "DEPS",
"managed" : False,
"custom_deps" : {
},
"safesync_url": "",
},
]
cache_dir = None
'''
if current_deps_hash != deps_hash:
# `gclient sync` is very slow, so skip whenever we can.
if not os.path.isfile('.gclient'):
with open('.gclient', 'w') as o:
o.write(default_gclient_config)
try:
subprocess.check_call(['gclient', 'sync'])
except:
sys.stderr.write('\n`gclient sync` failed.\n')
os.remove('.deps_sha1') # Unknown state.
exit(1)
# Only write hash after a successful sync.
with open('.deps_sha1', 'w') as o:
o.write(deps_hash)
hasher = hashlib.sha1()
for var in ['AR', 'AR_host', 'AR_target',
'CC', 'CC_host', 'CC_target',
'CFLAGS', 'CFLAGS_host',
'CPPFLAGS', 'CPPFLAGS_host',
'CXX', 'CXX_host', 'CXX_target',
'GYP_DEFINES', 'GYP_GENERATORS',
'NM', 'NM_host', 'NM_target',
'READELF', 'READELF_host', 'READELF_target']:
hasher.update(os.environ.get(var, '') + '\n')
def listfiles(folder, matchfilter):
for root, folders, files in os.walk(folder):
for filename in files:
if fnmatch.fnmatch(filename, matchfilter):
yield os.path.join(root, filename)
for filename in sorted(listfiles('gyp', '*')):
with open(filename, 'r') as f:
hasher.update(f.read())
for dir in ['bench', 'gm', 'tests']:
for filename in sorted(listfiles(dir, '*.c*')):
hasher.update(filename + '\n')
gyp_hash = hasher.hexdigest()
def cat_if_exists(path):
if os.path.exists(path):
with open(path, 'r') as f:
return f.read()
return ''
if cat_if_exists(hash_path).strip() != gyp_hash:
env = os.environ.copy()
if skia_out:
env['SKIA_OUT'] = skia_out
subprocess.call(['python', './gyp_skia'], env=env)
with open(hash_path, 'w') as o:
o.write(gyp_hash)
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