37 lines
1.4 KiB
Bash
37 lines
1.4 KiB
Bash
#!/usr/bin/env bash
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set -eo pipefail
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[[ ! $# -eq 1 ]] && echo "Usage: $0 backup_number" && exit 1;
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[[ -z "${BACKUP_DIR}" ]] && echo "Required 'BACKUP_DIR' env not set" && exit 1;
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[[ -z "${JENKINS_HOME}" ]] && echo "Required 'JENKINS_HOME' env not set" && exit 1;
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BACKUP_TMP_DIR=$(mktemp -d)
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trap "test -d "${BACKUP_TMP_DIR}" && rm -fr "${BACKUP_TMP_DIR}"" EXIT SIGINT SIGTERM
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backup_number=$1
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echo "Running backup"
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# config.xml in a job directory is a config file that shouldn't be backed up
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# config.xml in child directories is state that should. For example-
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# branches/myorg/branches/myrepo/branches/master/config.xml should be retained while
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# branches/myorg/config.xml should not
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tar --zstd -C "${JENKINS_HOME}" -cf "${BACKUP_TMP_DIR}/${backup_number}.tar.zstd" \
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--exclude jobs/*/workspace* \
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--no-wildcards-match-slash --anchored \
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--ignore-failed-read \
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--exclude jobs/*/config.xml -c jobs || ret=$?
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if [[ "$ret" -eq 0 ]]; then
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echo "Backup was completed without warnings"
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mv "${BACKUP_TMP_DIR}/${backup_number}.tar.zstd" "${BACKUP_DIR}/${backup_number}.tar.zstd"
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elif [[ "$ret" -eq 1 ]]; then
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echo "Backup was completed with some warnings"
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mv "${BACKUP_TMP_DIR}/${backup_number}.tar.zstd" "${BACKUP_DIR}/${backup_number}.tar.zstd"
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fi
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rm -rf "${BACKUP_TMP_DIR}"
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[[ ! -s ${BACKUP_DIR}/${backup_number}.tar.zstd ]] && echo "backup file '${BACKUP_DIR}/${backup_number}.tar.zstd' is empty" && exit 1;
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echo Done
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exit 0
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