62 lines
2.3 KiB
Bash
Executable File
62 lines
2.3 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2023 Google Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -eu
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main() {
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# Check if the last commit included changes to a .gn or .gni file, which need
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# to be reflected in a .patch
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if git diff --name-only HEAD~..HEAD | egrep -q '[.]gni?$'; then
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echo "INFO: changes to a .gn|.gni file detected."
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else
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# no patch needed
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exit 0
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fi
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# HACK: checking for the existence of rebase-merge may not always work as
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# expected.
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# TODO: find a better solution. One option is to parse `git status` output and
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# grep for the "rebase in progress" string.
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if [[ -d "$(git rev-parse --git-dir)/rebase-merge" ]]; then
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# interactive rebase in progress.
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echo "WARNING! .patch files are not updated during interactive rebase"
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exit 0
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fi
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# There is no flag to skip the post-commit hook (--no-verify only works for
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# pre-commit and commit-msg hooks). Briefly remove the executable
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# permission to prevent recursion.
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chmod -x .git/hooks/post-commit
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# Ensure chmod +x is always run, even when script exits early
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trap "chmod +x .git/hooks/post-commit" EXIT
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# Remove any existing .patch files from the commit
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local -r patches_dir="${ANDROID_BUILD_TOP}/external/cronet/patches"
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git reset HEAD~ -- "${patches_dir}/*.patch"
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git -c "advice.ignoredHook=false" commit --amend --no-edit
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# Create patch (which only reflects changes to .gn and .gni files).
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local -r number_of_patches=$(git ls-tree -r HEAD~ -- "${patches_dir}" | wc -l)
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local -r patch_name=$(git format-patch -1 -N --start-number "${number_of_patches}" -o "${patches_dir}" HEAD -- "*.gn" "*.gni")
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git add "${patch_name}"
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git -c "advice.ignoredHook=false" commit --amend --no-edit
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echo "INFO: a .patch file was added to your CL"
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}
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main "$@"; exit
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