# Copyright 2023 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import ast
import glob
import json
import os
import re
import tempfile
from typing import Dict, List
from cca import util
import gen_preload_images_js as gen_preload_images_js_module
def gen_preload_images_js() -> str:
with open("images/images.gni") as f:
gn = f.read()
match = re.search(r"in_app_images\s*=\s*(\[.*?\])", gn, re.DOTALL)
assert match is not None
in_app_images = ast.literal_eval(match.group(1))
match = re.search(r"standalone_images\s*=\s*(\[.*?\])", gn, re.DOTALL)
assert match is not None
standalone_images = ast.literal_eval(match.group(1))
in_app_images = [
os.path.abspath(f"images/{asset}") for asset in in_app_images
]
standalone_images = [
os.path.abspath(f"images/{asset}") for asset in standalone_images
]
return gen_preload_images_js_module.gen_preload_images_js(
in_app_images, standalone_images)
def build_preload_images_js(outdir: str):
preload_images_js_path = os.path.join(outdir, "preload_images.js")
if os.path.exists(preload_images_js_path):
with open(preload_images_js_path) as f:
preload_images_js = f.read()
else:
preload_images_js = None
new_preload_images_js = gen_preload_images_js()
# Only write when the generated preload_images.js changes, to avoid
# changing mtime of the preload_images.js file when the images are
# not changed, so rsync won't copy the file again on deploy.
if new_preload_images_js == preload_images_js:
return
with open(preload_images_js_path, "w") as output_file:
output_file.write(new_preload_images_js)
def _get_tsc_paths(board: str) -> Dict[str, List[str]]:
root_dir = util.get_chromium_root()
target_gen_dir = util.get_gen_dir(board)
resources_dir = os.path.join(target_gen_dir, "ui/webui/resources/tsc/*")
lit_d_ts = os.path.join(
root_dir, "third_party/material_web_components/lit_exports.d.ts")
return {
"//resources/*": [os.path.relpath(resources_dir)],
"chrome://resources/*": [os.path.relpath(resources_dir)],
"chrome://resources/mwc/lit/index.js": [os.path.relpath(lit_d_ts)],
}
def _make_mojom_symlink(board: str):
cca_root = os.getcwd()
root_dir = util.get_chromium_root()
target_gen_dir = util.get_gen_dir(board)
src_relative_dir = os.path.relpath(cca_root, root_dir)
generated_mojom_dir = os.path.join(target_gen_dir, src_relative_dir,
"mojom")
target = os.path.join(cca_root, "mojom")
if os.path.islink(target):
if os.readlink(target) != generated_mojom_dir:
# There's a symlink here that's not pointing to the correct path.
# This might happen when changing board. Remove the symlink and
# recreate in this case.
os.remove(target)
os.symlink(generated_mojom_dir, target)
elif os.path.exists(target):
# Some other things are at the mojom path. cca.py won't work in
# this case.
raise Exception("resources/mojom exists but not a symlink."
" Please remove it and try again.")
else:
os.symlink(generated_mojom_dir, target)
def _get_tsc_references(board: str) -> List[Dict[str, str]]:
target_gen_dir = util.get_gen_dir(board)
mwc_tsconfig_path = os.path.join(
target_gen_dir,
"third_party/material_web_components/tsconfig_library.json",
)
return [{"path": os.path.relpath(mwc_tsconfig_path)}]
def generate_tsconfig(board: str):
cca_root = os.getcwd()
# TODO(pihsun): This needs to be in sync with BUILD.gn, have some heuristic
# to get the dependency from there or from the generated tsconfig.json
# instead?
root_dir = util.get_chromium_root()
common_definitions = os.path.join(root_dir, "tools/typescript/definitions")
target_gen_dir = util.get_gen_dir(board)
assert os.path.exists(target_gen_dir), (
f"Failed to find the build output dir {target_gen_dir}."
" Please check the board name and build Chrome once.")
with open(os.path.join(cca_root, "tsconfig_base.json")) as f:
tsconfig = json.load(f)
_make_mojom_symlink(board)
tsconfig["files"] = glob.glob("js/**/*.ts", recursive=True)
tsconfig["files"].append(os.path.join(common_definitions, "pending.d.ts"))
tsconfig["compilerOptions"]["rootDir"] = cca_root
tsconfig["compilerOptions"]["noEmit"] = True
tsconfig["compilerOptions"]["paths"] = _get_tsc_paths(board)
tsconfig["compilerOptions"]["plugins"] = [{
"name": "ts-lit-plugin",
"strict": True
}]
tsconfig["references"] = _get_tsc_references(board)
with open(os.path.join(cca_root, "tsconfig.json"), "w") as f:
json.dump(tsconfig, f)
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