# Copyright 2024 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 json
import pathlib
import re
from cra import util
import gen_images_js as gen_images_js_module
def gen_images_js() -> str:
images_base = util.get_cra_root() / "images"
with open(images_base / "images.gni") as f:
gn = f.read()
match = re.search(r"images\s*=\s*(\[.*?\])", gn, re.DOTALL)
assert match is not None
images = ast.literal_eval(match.group(1))
match = re.search(r"icons\s*=\s*(\[.*?\])", gn, re.DOTALL)
assert match is not None
icons = ast.literal_eval(match.group(1))
images += [f"icons/{icon}" for icon in icons]
images = [images_base / image for image in images]
return gen_images_js_module.gen_images_js(images, images_base)
# TODO(pihsun): This & _get_tsc_references is getting more and more
# complicated. Maybe we should just grab the built tsconfig_build_ts.json and
# modify the path to point to the correct location instead.
def _get_tsc_paths(build_dir: pathlib.Path) -> dict[str, list[str]]:
root_dir = util.get_chromium_root()
images_dir = util.get_cra_root() / "images"
resources_dir = build_dir / "gen/ui/webui/resources/tsc"
mwc_dir = root_dir / "third_party/material_web_components"
lit_d_ts = mwc_dir / "lit_exports.d.ts"
mwc_components_dir = mwc_dir / "components-chromium/node_modules/@material"
cros_components_dir = resources_dir / "cros_components/to_be_rewritten"
return {
"//resources/*": [str(resources_dir / "*")],
"chrome://resources/*": [str(resources_dir / "*")],
"chrome://resources/mwc/lit/index.js": [str(lit_d_ts)],
"chrome://resources/mwc/@material/*": [str(mwc_components_dir / "*")],
"chrome://resources/cros_components/*":
[str(cros_components_dir / "*")],
"/images/*": [str(images_dir / "*")],
}
def _make_mojom_symlink(build_dir: pathlib.Path):
cra_root = util.get_cra_root()
root_dir = util.get_chromium_root()
preprocessed_mojo_dir = build_dir / "gen" / cra_root.relative_to(
root_dir) / "preprocessed/mojom"
cra_mojo_dir = cra_root / "mojom"
assert preprocessed_mojo_dir.exists(), (
f"{preprocessed_mojo_dir} doesn't exist, "
"is Chrome compiled at least once?")
if cra_mojo_dir.is_symlink():
if cra_mojo_dir.readlink() != preprocessed_mojo_dir:
# There's a symlink here that's not pointing to the correct path.
# This might happen when changing build_dir. Remove the symlink and
# recreate in this case.
cra_mojo_dir.unlink()
cra_mojo_dir.symlink_to(preprocessed_mojo_dir)
elif cra_mojo_dir.exists():
# Some other things are at the mojom path. cra.py won't work in
# this case.
raise Exception("resources/mojom exists but not a symlink."
" Please remove it and try again.")
else:
cra_mojo_dir.symlink_to(preprocessed_mojo_dir)
def _get_tsc_references(build_dir: pathlib.Path) -> list[dict[str, str]]:
mwc_gen_dir = build_dir / "gen/third_party/material_web_components/"
cros_components_tsconfig = (
build_dir /
"gen/third_party/cros-components/tsconfig_cros_components_ts.json")
return [{
"path": str(mwc_gen_dir / "tsconfig_library.json")
}, {
"path": str(mwc_gen_dir / "tsconfig_bundle_lit_ts.json")
}, {
"path": str(cros_components_tsconfig)
}]
def generate_tsconfig(build_dir: pathlib.Path):
# 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?
cra_root = util.get_cra_root()
with open(cra_root / "tsconfig_base.json") as f:
tsconfig = json.load(f)
_make_mojom_symlink(build_dir)
tsconfig["files"] = [str(p) for p in cra_root.glob("**/*.ts")]
tsconfig["compilerOptions"]["rootDir"] = str(cra_root)
tsconfig["compilerOptions"]["noEmit"] = True
tsconfig["compilerOptions"]["paths"] = _get_tsc_paths(build_dir)
tsconfig["compilerOptions"]["plugins"] = [{
"name": "ts-lit-plugin",
"strict": True
}]
tsconfig["references"] = _get_tsc_references(build_dir)
with open(cra_root / "tsconfig.json", "w") as f:
json.dump(tsconfig, f)
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