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# Copyright (C) 2024 The Chromium Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Copybara config for Cronet to AOSP import.
# The set of files to be read from the origin (Chromium src/).
origin_files = glob([
"chrome/VERSION",
"components/metrics/**",
# See https://chromium-review.googlesource.com/c/chromium/src/+/4896104
"components/miracle_parameter/**",
"components/nacl/**",
"components/prefs/**",
"components/unexportable_keys/**",
"crypto/**",
"ipc/**",
"net/**",
"url/**",
# https://crrev.com/c/5800287
"components/network_time/**",
]) + glob(["base/**"]) - glob([
# Exclude test files to reduce the number of gn2bp files
"base/tracing/test/**",
]) + glob(["build/**"]) - glob([
# Per aosp/2367109
"build/android/CheckInstallApk-debug.apk",
"build/android/unused_resources/**",
"build/linux/**",
"build/win/**",
# We don't care about siso, and the contents of the .sisoenv file tend to be
# non-deterministic, causing spurious diffs.
"build/config/siso/**",
]) + glob(["components/cronet/**"]) - glob([
# Per aosp/2374766
"components/cronet/native/**",
]) + glob(["testing/**"]) - glob([
# Per aosp/2399270
"testing/buildbot/**",
# Exclude test files to reduce the number of gn2bp files
"testing/fuzzer/**",
"testing/libfuzzer/fuzzers/wasm_corpus/**",
]) - glob(["**/third_party/**"]) + glob([
"base/third_party/cityhash/**",
"base/third_party/cityhash_v103/**",
"base/third_party/double_conversion/**",
"base/third_party/dynamic_annotations/**",
"base/third_party/icu/**",
"base/third_party/nspr/**",
"base/third_party/superfasthash/**",
# Those are temporarily needed until Chromium finish the migration
# of libc++[abi]
"buildtools/third_party/libc++/**",
"buildtools/third_party/libc++abi/**",
"net/third_party/quiche/**",
"net/third_party/uri_template/**",
"third_party/abseil-cpp/**",
"third_party/android_ndk/sources/android/cpufeatures/**",
# See https://chromium-review.googlesource.com/c/chromium/src/+/4885470
# Note: Only used for tests.
"third_party/anonymous_tokens/**",
"third_party/ashmem/**",
# Note: Only used for tests.
"third_party/apache-portable-runtime/**",
"third_party/brotli/**",
# Note: Only used for tests.
"third_party/ced/**",
"third_party/cpu_features/**",
# Note: Only used for tests.
"third_party/fuzztest/**",
# Note: Only used for tests.
"third_party/google_benchmark/**",
# Note: Only used for tests.
"third_party/googletest/**",
"third_party/icu/**",
"third_party/jni_zero/**",
"third_party/libc++abi/**",
# Note: Only used for tests.
"third_party/libxml/**",
# Note: Only used for tests.
"third_party/lss/**",
"third_party/metrics_proto/**",
"third_party/modp_b64/**",
# Note: Only used for tests.
"third_party/netty4/**",
# Note: Only used for tests.
"third_party/netty-tcnative/**",
"third_party/protobuf/**",
# Note: Only used for tests.
"third_party/re2/**",
# Note: Cronet currently uses Android's zlib
# "third_party/zlib/**",
"url/third_party/mozilla/**",
"third_party/simdutf/**",
"third_party/perfetto/**",
"third_party/zstd/**",
]) + glob([
"third_party/compiler-rt/**",
]) - glob([
# This is not used, and contains a large number of files that slows down
# imports and checkouts.
"third_party/compiler-rt/src/test/**",
]) + glob([
"third_party/libc++/**",
]) - glob([
# This is not used, and contains a huge number of files (~10k) that slows
# down imports and checkouts.
"third_party/libc++/src/test/**",
]) + glob([
"third_party/llvm-libc/**",
]) - glob([
# This is not used, and contains a large number of files that slows down
# imports and checkouts.
"third_party/llvm-libc/src/test/**"
]) + glob([
"third_party/boringssl/**",
]) - glob([
# This is not used, and contains a large number of files that slows down
# imports and checkouts.
"third_party/boringssl/src/fuzz/**",
"third_party/boringssl/src/pki/testdata/**",
]) + glob([
# Note: Only used for tests.
"third_party/quic_trace/**"
]) - glob([
# This is not used and it doesn't have a README.chromium for us to generate
# a license.
"third_party/quic_trace/src/third_party/glew/**"
]) + glob(["third_party/rust/**"]) - glob([
# Those crates are missing README.chromium and LICENSE files.
# See crbug.com/369505588 and crbug.com/369075726
"third_party/rust/chromium_crates_io/vendor/cc-*/**",
"third_party/rust/cc/**",
"third_party/rust/chromium_crates_io/vendor/codespan-reporting-*/**",
"third_party/rust/codespan_reporting/**",
"third_party/rust/chromium_crates_io/vendor/link-cplusplus-*/**",
"third_party/rust/chromium_crates_io/vendor/minimal-lexical-*/**",
"third_party/rust/chromium_crates_io/vendor/rstest_macros-*/**",
"third_party/rust/rstest_macros/**",
"third_party/rust/chromium_crates_io/vendor/rstest-*/**",
"third_party/rust/rstest/**",
"third_party/rust/chromium_crates_io/vendor/rstest_reuse-*/**",
"third_party/rust/rstest_reuse/**",
"third_party/rust/chromium_crates_io/vendor/rustc-demangle-capi-*/**",
"third_party/rust/rustc_demangle_capi/**",
"third_party/rust/chromium_crates_io/vendor/wasi-*+wasi-snapshot-preview1/**",
"third_party/rust/chromium_crates_io/vendor/winapi-i686-pc-windows-gnu-*/**",
"third_party/rust/chromium_crates_io/vendor/winapi-x86_64-pc-windows-gnu-*/**",
"third_party/rust/chromium_crates_io/vendor/winapi-0.*/**",
"third_party/rust/winapi/**",
]) + glob([
# Top-level build files generated by gen_android_bp.py
"Android.bp.gn2bp",
"Android.extras.bp.gn2bp",
# Top-level license file generated by create_android_metadata_license.py
"LICENSE",
]) - glob([
# We only want to import the Android.bp.gn2bp build files that we generated
# ourselves; get rid of any spurious Android build files that may also be
# present in the origin
"**/Android.bp",
"**/Android.mk",
# Remove Bazel BUILD files as they are recognized in AOSP (roboleaf).
"**/BUILD",
"**/*OWNERS",
"**/.git/**",
"**/.gitignore",
"**/.gitmodules",
"**/.github/**",
"**/MODULE.bazel.lock",
# Exclude GN-specific files to reduce the number of gn2bp files
"**/BUILD.gn",
"**/*.gni",
# These files may be generated when running local Python scripts locally -
# make sure we don't accidentally import them.
"**/__pycache__/**",
# These files accidentally trigger the "NDK-API-Review" submit requirement
# in Android Gerrit. See https://crbug.com/411039623.
"**/*.map.txt",
]) - glob([
# https://crbug.com/404202679: last, to make sure we never upload internal code.
# Cronet does not bundle/depend on any internal code. Having said that, the
# internal builder that takes care of importing code in Android requires access
# to //internal; so that it can access its own configuration at runtime. To
# make sure we don't import any internal code to Android, we do the following:
# 1. Set the checkout_src_internal_infra gclient var - this lets the bot checkout
# //internal, but not any other internal-src code.
# 2. Explicitly exclude //internal via this exclude glob.
# This way, //internal is available to the bot at runtime, but copybara will not
# import it into Android.
"internal/**",
])
def destination_files_for_channel(import_channel):
# These files are manually maintained in the destination and do not
# exist in the origin.
destination_files_to_exclude_per_channel = [
"METADATA",
"MODULE_LICENSE_BSD",
"third_party/zlib/**",
# TODO: https://crbug.com/387975197 - we shouldn't have to manually
# maintain this list; ideally Copybara should handle this automatically
# through the consistency file just like it does for partial file diffs.
"components/cronet/android/test/src/org/chromium/net/AndroidManifest.xml",
]
# The scope of the import in the destination (AOSP //external/cronet/channel).
#
# Each destination file in this set will be 3-way-merged with its counterpart
# file from the filtered and transformed origin.
#
# If a destination file in this set had a counterpart in the last import origin
# (the "baseline" - as evidenced by the file being listed in the consistency
# file), but that file was deleted in the mean time and does not exist in the
# current origin, the file will be deleted in the destination.
#
# If a destination file in this set has no counterpart in the last import
# origin nor the current origin, copybara will fail with a "Detected full-file
# diffs when generating consistency file" error. This can happen if this set is
# expanded or if new files have been created in the destination. See
# https://crbug.com/387975197.
#
# Note: These are post-transformation files. As such, we have to be aware of
# which channel we're importing, since we must consider the files within that
# channel subdirectory.
return glob([import_channel + "/**"]) - glob(
[import_channel + "/" + file for file in destination_files_to_exclude_per_channel]
)
def workflow(name, destination, destination_files, mode, additional_transform, consistency_file_path):
core.workflow(
name = name,
authoring = authoring.overwrite("Cronet Mainline Eng <cronet-mainline-eng+copybara@google.com>"),
# Origin folder is specified via source_ref argument, see import_cronet.sh
origin = folder.origin(),
origin_files = origin_files,
destination = destination,
destination_files = destination_files,
mode = mode,
transformations = [
core.rename("Android.bp.gn2bp", "Android.bp"),
core.rename("Android.extras.bp.gn2bp", "Android.extras.bp"),
additional_transform,
],
consistency_file_path = consistency_file_path,
merge_import = core.merge_import_config(
package_path = "",
use_consistency_file = True,
),
)
def per_channel_workflow(name, destination, mode):
for import_channel in ["tot", "stable"]:
workflow(
name = import_channel + "_" + name,
destination = destination,
destination_files = destination_files_for_channel(import_channel),
mode = mode,
additional_transform = core.move("", import_channel),
consistency_file_path = import_channel + "/chromium.bara.consistency"
)
# Workflow for importing code from Chromium to AOSP Gerrit via a Chromium CI
# as a pending CL, including Android build files generated by gn2bp.
per_channel_workflow(
name = "import_cronet_to_aosp_gerrit",
destination = git.gerrit_destination(
url = "https://googleplex-android.googlesource.com/platform/external/cronet",
fetch = "main",
push_to_refs_for = "main",
# TODO(crbug.com/372534509): Replace reviewer with team-based Gerrit
# account once it is set up.
labels = ["Presubmit-Ready+1"]
),
mode = "SQUASH",
)
# Same as above, but importing to some git branch. Used for manual testing.
per_channel_workflow(
name = "import_cronet_to_git_branch",
destination = git.destination(
# Parameters intentionally left blank, to be filled out through the copybara
# command line.
url = "Git destination to be passed through command line",
),
mode = "SQUASH",
)
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