86653e5f79
Interpolation can and does insert % placeholders into the printf template text - although not valid ones as they're intended for python. So be more careful! Put all inserted text into the parameters to printf, or use echo. Also, keep some of the alterations used whilst diagnosing this.
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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"$@" 2>&1 1>&3 3>&- | indent " ! "
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} 3>&1 1>&2 | indent " | " | tee -a "$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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