102 lines
2.3 KiB
Bash
Executable File
102 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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# Run the backup and mail the logs:
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# Depending on parameter 1:
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# - test-smtp: just send a test email to $MAIL_TO
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# - run: create the backup, no checks
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# - check: prune, compact and check the backup
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# Anything else is an error.
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set -o pipefail
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# Set up environment
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/bin/sh /scripts/msmtprc.sh
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/bin/sh /scripts/env.sh
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RUN_COMMAND="borgmatic --stats -v 2 create"
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CHECK_COMMAND="borgmatic --stats -v 1 prune compact check"
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LOGFILE="/tmp/backup_run_$(date +%s).log"
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SUCCESS_PREFIX="=?utf-8?Q? =E2=9C=85 SUCCESS?="
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FAILED_PREFIX="=?utf-8?Q? =E2=9D=8C FAILED?="
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PARAM="$1"
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# Helper function to prepend a timestamp and the first parameter to every line of STDIN
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indent() {
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while IFS='' read -rs line; do
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echo "$(date -Iminutes)${1:- }$line"
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done
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}
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# This function prepends timestamps to stderr and stdout of the
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# command supplied as parameters to this.
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log() {
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# Adapted from https://stackoverflow.com/a/31151808
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{
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stdbuf -oL -eL "$@" 2>&1 1>&3 3>&- | indent " ! "
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} 3>&1 1>&2 | indent " | " | tee -a "$LOGFILE"
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}
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report() {
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if [ "$RESULT" = "0" ]; then
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log echo "SUCCESS!"
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PREFIX="$SUCCESS_PREFIX"
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else
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log echo "FAILED: $RESULT"
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PREFIX="$FAILED_PREFIX"
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fi
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printf "Subject: %s: '%s'\n\n%s\n" "$PREFIX" "$PARAM" "$(cat $LOGFILE)" |
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sendmail -t "$MAIL_TO"
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log echo "Report sent."
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}
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testmail() {
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echo -e "Subject: TESTING!\n\ntest mail, please ignore\n" |
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sendmail -t "$MAIL_TO"
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}
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failed() {
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log echo "Exited abnormally!"
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report
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rm -f "$LOGFILE"
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}
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cleanup() {
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borgmatic break-lock
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echo "Removing $LOGFILE"
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rm -f "$LOGFILE"
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echo "Exiting."
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}
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# Handle various kinds of exit
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trap failed INT QUIT KILL
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trap cleanup EXIT
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case "$PARAM" in
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test-smtp)
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echo "Testing mail to $MAIL_TO"
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testmail
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echo "Done."
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;;
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check)
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log echo STARTED: $CHECK_COMMAND
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log $CHECK_COMMAND
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RESULT=$?
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report
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;;
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run)
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log echo STARTED: $RUN_COMMAND
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log $RUN_COMMAND
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RESULT=$?
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report
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;;
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dummy-run)
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log echo STARTED: dummy-run
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borgmatic nonesuch
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RESULT=$?
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report
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;;
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*)
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log echo "UNKNOWN COMMAND: '$PARAM'"
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report
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;;
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esac
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