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# Note: This script is called "commit_message_validate", but it does not actually
# evaluate the commit message. Rather, it leverages the fact that a GitHub merge queue
# triggered branch will have a single commit message that is the name of the PR.
# This script ensures the PR name matches a well-known regex (see below for details).
DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" > /dev/null 2>&1 && pwd)"
. "$DIR/prelude.sh"
cd src
set -o verbose
set -o errexit
if [ "${is_commit_queue}" = "true" ]; then
# Fetch the gitlog from the last merge commit to HEAD, which is guaranteed
# to be the commit message of the PR.
gitlog=$(git log --pretty=format:'%s' ${branch_name}...HEAD 2>&1)
# In case there are any special characters that could cause issues (like "). To
# do this, we will write it out to a file, then read that file into a variable.
cat > commit_message.txt << END_OF_COMMIT_MSG
${gitlog}
END_OF_COMMIT_MSG
commit_message_content=$(cat commit_message.txt)
activate_venv
$python buildscripts/validate_commit_message.py "$commit_message_content"
else
echo "Not a commit queue PR, skipping commit message validation"
exit 0
fi
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