43 lines
1.5 KiB
Bash
43 lines
1.5 KiB
Bash
#!/usr/bin/env bash
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# Check the backups made with restic to Backblaze B2 for errors.
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# See restic_backup.sh on how this script is run (as it's analogous for this script).
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# Exit on error, unset var, pipe failure
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set -euo pipefail
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# Assert that all needed environment variables are set.
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assert_envvars() {
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local varnames=($@)
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for varname in "${varnames[@]}"; do
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# Check if variable is set, then if it is not empty (need to do both as of `set -u`).
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if [ -z ${!varname+x} ] || [ -z ${!varname} ] ; then
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printf "%s must be set with a value for this script to work.\n\nDid you forget to source a /etc/restic/*.env profile in the current shell before executing this script?\n" $varname >&2
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exit 1
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fi
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done
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}
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assert_envvars \
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B2_ACCOUNT_ID B2_ACCOUNT_KEY B2_CONNECTIONS \
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RESTIC_PASSWORD_FILE RESTIC_REPOSITORY RESTIC_VERBOSITY_LEVEL
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# Clean up lock if we are killed.
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# If killed by systemd, like $(systemctl stop restic), then it kills the whole cgroup and all it's subprocesses.
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# However if we kill this script ourselves, we need this trap that kills all subprocesses manually.
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exit_hook() {
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echo "In exit_hook(), being killed" >&2
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jobs -p | xargs kill
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restic unlock
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}
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trap exit_hook INT TERM
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# Remove locks from other stale processes to keep the automated backup running.
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# NOTE nope, don't unlock like restic_backup.sh. restic_backup.sh should take precedence over this script.
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#restic unlock &
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#wait $!
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# Check repository for errors.
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restic check \
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--option b2.connections=$B2_CONNECTIONS \
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--verbose=$RESTIC_VERBOSITY_LEVEL &
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wait $!
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