Cleanup old builds of gitlab

gitlabci-cleanup.sh

#!/bin/bash
# cleanup_gitlab_builds: to remove old gitlab builds

WORK_DIR=/home/gitlab-runner/builds
LAST_MODIFY_DAYS=30  # no of days the directory was modified
dir_array=()
space_cleared=0
skipped_dirs=()

QUIET=1
DRY_RUN=1

set -e  # exit on errors

# Handle cmd line options
while getopts "d:nqh" opt
do
	case "$opt" in
	d) LAST_MODIFY_DAYS="$OPTARG";;
	n) DRY_RUN=0;;
	q) QUIET=0;;
	*) ;;
	esac
done

# https://stackoverflow.com/a/23357277/4005566
while IFS=  read -r -d $'\0'; do
    dir_array+=("$REPLY")
done < <(find "$WORK_DIR" -mindepth 4 -maxdepth 4 -type d -ctime +"${LAST_MODIFY_DAYS}" -print0)

for dir in "${dir_array[@]}"; do
	dir_size=$(du -d 0 "$dir" | cut -f 1)
	echo "$dir  $dir_size"
	if [ ! "$DRY_RUN" -eq 0 ]; then
		rm -r "$dir"
		space_cleared=$((space_cleared + dir_size))
	fi
done

if [ ! "$QUIET" -eq 0 ]; then
	echo
	echo "$space_cleared kb cleared"
fi