spiff-arena/spiffworkflow-backend/bin/git_commit_bpmn_models_repo

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#!/usr/bin/env bash
function error_handler() {
>&2 echo "Exited with BAD EXIT CODE '${2}' in ${0} script at line: ${1}."
exit "$2"
}
trap 'error_handler ${LINENO} $?' ERR
set -o errtrace -o errexit -o nounset -o pipefail
# HELP: git adds and commits the entire BPMN models directory, including all process groups
bpmn_models_absolute_dir="$1"
git_commit_message="$2"
git_branch="$3"
if [[ -z "${3:-}" ]]; then
>&2 echo "usage: $(basename "${0}") [bpmn_models_absolute_dir] [git_commit_message] [git_branch]"
exit 1
fi
function failed_to_get_lock() {
>&2 echo "ERROR: Failed to get lock."
exit 1
}
function run() {
# we are very careful not to run "cd" from python, since it is at the process level and will screw up other threads.
# we are safe in this case because this entire script is run in a new process.
cd "${bpmn_models_absolute_dir}"
git add .
# https://unix.stackexchange.com/a/155077/456630
if [ -z "$(git status --porcelain)" ]; then
echo "No changes to commit"
return
fi
# FIXME: the environment variables may not be working with the root user which we are using in the docker container.
# we see some evidence with this issue https://stackoverflow.com/questions/68975943/git-config-environment-variables
# and it didn't seem to work for us either so set them like this for now.
# One day we should probably not use the root user in the docker container.
git config --local user.email "$GIT_COMMITTER_EMAIL"
git config --local user.name "$GIT_COMMITTER_NAME"
git commit -m "${git_commit_message}"
git push --set-upstream origin "${git_branch}"
}
lock_directory="/var/lock"
if [[ ! -d "${lock_directory}" ]]; then
lock_directory="/tmp"
fi
if ! command -v flock >/dev/null 2>&1; then
if command -v brew >/dev/null 2>&1; then
# some hero made this available on mac: https://github.com/discoteq/flock
brew install flock
else
>&2 echo "ERROR: flock is not installed and we cannot install it."
exit 1
fi
fi
exec {lock_fd}>"${lock_directory}/spiffworkflow-git-lock" || failed_to_get_lock
flock --timeout 60 "${lock_fd}" || failed_to_get_lock
run
flock -u "${lock_fd}"