blob: 72e8acced7193df8383e32b9bd3ac40cbecc138f [file] [log] [blame]
# Copyright 2018 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.
DOCKER_IMAGE = 'gcr.io/skia-public/emsdk-release:1.38.27_v1'
INNER_BUILD_SCRIPT = '/SRC/skia/infra/pathkit/build_pathkit.sh'
def compile_fn(api, checkout_root, _ignore):
out_dir = api.vars.cache_dir.join('docker', 'pathkit')
configuration = api.vars.builder_cfg.get('configuration', '')
target_arch = api.vars.builder_cfg.get('target_arch', '')
# We want to make sure the directories exist and were created by chrome-bot,
# because if that isn't the case, docker will make them and they will be
# owned by root, which causes mysterious failures. To mitigate this risk
# further, we don't use the same out_dir as everyone else (thus the _ignore)
# param. Instead, we use a "pathkit" subdirectory in the "docker" named_cache.
api.file.ensure_directory('mkdirs out_dir', out_dir, mode=0777)
# This uses the emscriptem sdk docker image and says "run the
# build_pathkit.sh helper script in there". Additionally, it binds two
# folders: the Skia checkout to /SRC and the output directory to /OUT
# The called helper script will make the compile happen and put the
# output in the right spot. The neat thing is that since the Skia checkout
# (and, by extension, the build script) is not a part of the image, but
# bound in at runtime, we don't have to re-build the image, except when the
# toolchain changes.
# Of note, the wasm build doesn't re-use any intermediate steps from the
# previous builds, so it's essentially a build from scratch every time.
cmd = ['docker', 'run', '--rm', '--volume', '%s:/SRC' % checkout_root,
'--volume', '%s:/OUT' % out_dir,
DOCKER_IMAGE, INNER_BUILD_SCRIPT]
if configuration == 'Debug':
cmd.append('debug') # It defaults to Release
if target_arch == 'asmjs':
cmd.append('asm.js') # It defaults to WASM
# Override DOCKER_CONFIG set by Kitchen.
env = {'DOCKER_CONFIG': '/home/chrome-bot/.docker'}
with api.env(env):
api.run(
api.step,
'Build PathKit with Docker',
cmd=cmd)
PATHKIT_BUILD_PRODUCTS = [
'pathkit.*'
]
def copy_build_products(api, _ignore, dst):
out_dir = api.vars.cache_dir.join('docker', 'pathkit')
# We don't use the normal copy_listed_files because it uses
# shutil.move, which attempts to delete the previous file, which
# doesn't work because the docker created outputs are read-only and
# owned by root (aka only docker images). It's likely safe to change
# the shutil.move in the original script to a non-deleting thing
# (like copy or copyfile), but there's some subtle behavior differences
# especially with directories, that kjlubick felt it best not to risk it.
api.python.inline(
name='copy wasm output',
program='''import errno
import glob
import os
import shutil
import sys
src = sys.argv[1]
dst = sys.argv[2]
build_products = %s
try:
os.makedirs(dst)
except OSError as e:
if e.errno != errno.EEXIST:
raise
for pattern in build_products:
path = os.path.join(src, pattern)
for f in glob.glob(path):
dst_path = os.path.join(dst, os.path.relpath(f, src))
if not os.path.isdir(os.path.dirname(dst_path)):
os.makedirs(os.path.dirname(dst_path))
print 'Copying build product %%s to %%s' %% (f, dst_path)
# Because Docker usually has some strange permissions (like root
# ownership), we'd rather not keep those around. copyfile doesn't
# keep the metadata around, so that helps us.
shutil.copyfile(f, dst_path)
''' % str(PATHKIT_BUILD_PRODUCTS),
args=[out_dir, dst],
infra_step=True)