41 lines
1.2 KiB
Bash
Executable File
41 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eo pipefail
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source "$(dirname "$0")/utils.sh"
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is_backup_not_exist() {
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local backup_dir="$1"
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# Save the current value of 'set -e'
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local previous_e
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previous_e=$(set +e; :; echo $?)
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# Temporarily turn off 'set -e'
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set +e
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# Run ls command to check if any files matching the pattern exist
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ls "${backup_dir}"/*.tar.* 1> /dev/null 2>&1
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# Store the exit status of the ls command
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local ls_exit_status=$?
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# Restore the previous value of 'set -e'
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[ "$previous_e" = "0" ] && set -e
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# Return true if ls command succeeded (no files found), otherwise return false
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[ $ls_exit_status -ne 0 ]
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}
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[[ -z "${BACKUP_DIR}" ]] && { _log "ERROR" "Required 'BACKUP_DIR' env not set"; exit 1; }
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# Check if we have any backup
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if is_backup_not_exist "${BACKUP_DIR}"; then
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_log "No backups exist in ${BACKUP_DIR}"
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echo "-1"
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exit 0
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fi
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# Search for all the tar.* inside the backup dir to support the migration between gzip vs zstd
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latest=$(find "${BACKUP_DIR}"/*.tar.* -maxdepth 0 -exec basename {} \; | sort -g | tail -n 1)
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if [[ "${latest}" == "" ]]; then
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_log "Could not get the latest backup."
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echo "-1"
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else
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echo "${latest%%.*}"
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fi
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