crosvm/tools/chromeos/create_merge
Dennis Kempin e061930706 Add Kokoro build script for merging main into chromeos
The Kokoro build script sets up access to the chromium
gerrit, creates the merge commit and uploads it.

BUG=b:209034086
TEST=./ci/kokoro/simulate merge-to-chromeos.sh

Change-Id: Ia686b937c3d6b0b744d5c2162eb2847c5952e977
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3318793
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Dennis Kempin <denniskempin@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
2021-12-06 23:28:26 +00:00

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#!/bin/bash
# Copyright 2021 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Script to create a commit to merge cros/main into cros/chromeos with a useful
# commit message.
#
# Basic usage to upload a merge to gerrit:
#
# $ repo start uprev .
# $ ./tools/chromeos/create_merge
# $ git push cros HEAD:refs/for/chromeos
#
# To merge with a specific commit, use: ./tools/chromeos/create_merge $SHA
set -e
cd "$(dirname "${BASH_SOURCE[0]}")/../../" || exit
LOCAL_BRANCH=$(git branch --show-current)
REMOTE_NAME=$(git config "branch.${LOCAL_BRANCH}.remote")
URL=$(git remote get-url "${REMOTE_NAME}")
DEFAULT_TARGET="${REMOTE_NAME}/main"
MERGE_TARGET="${1:-${DEFAULT_TARGET}}"
commit_list() {
git log --oneline --decorate=no --no-color "HEAD..${MERGE_TARGET}"
}
prerequisites() {
if [[ -e "${LOCAL_BRANCH}" ]] ||
[[ -e "${REMOTE_NAME}" ]] ||
[[ -e "${URL}" ]]; then
echo "This script requires the local repository to be on" \
"a tracking branch."
exit 1
fi
if [[ -n $(git status -s) ]]; then
echo "Working directory is not clean:"
git status -s
exit 1
fi
if [[ -z "$(commit_list)" ]]; then
echo "Nothing to merge."
exit 0
fi
}
merge_message() {
local old=$(git rev-parse HEAD)
local new=$(git rev-parse "${MERGE_TARGET}")
local count=$(commit_list | wc -l)
echo "Merge ${count} commits from ${MERGE_TARGET} ($(date +%F))"
echo ""
commit_list
echo ""
echo "${URL}/+log/${old}..${new}"
echo ""
echo "BUG=None"
echo "TEST=CQ"
}
main() {
prerequisites
git merge --no-ff "${MERGE_TARGET}" -m "$(merge_message)"
git --no-pager log -n 1
}
main