c1541ab904
Clarify the `/config/ytdl-sub-configs/cron` script with explanatory comments and a default `--dry-run` command. Also change the wrapper script to echo commands for easier debugging. To update an existing script, move the old script aside, restart the container to regenerate it, and edit the new script. Also clarify the Automating page in the Getting Started guide docs.
70 lines
2.4 KiB
Text
70 lines
2.4 KiB
Text
#!/usr/bin/with-contenv bash
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echo "Starting ytdl-sub..."
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# copy config
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[[ ! -e "$DEFAULT_WORKSPACE/config.yaml" ]] && \
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mkdir -p "$DEFAULT_WORKSPACE" && \
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cp /defaults/config.yaml "$DEFAULT_WORKSPACE/config.yaml"
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[[ ! -e "$DEFAULT_WORKSPACE/subscriptions.yaml" ]] && \
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mkdir -p "$DEFAULT_WORKSPACE" && \
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cp /defaults/subscriptions.yaml "$DEFAULT_WORKSPACE/subscriptions.yaml"
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[[ ! -d "$DEFAULT_WORKSPACE/examples" ]] && \
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mkdir -p "$DEFAULT_WORKSPACE/examples" && \
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cp -r /defaults/examples/* "$DEFAULT_WORKSPACE/examples"
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[[ ! -e "/config/.bashrc" ]] && \
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echo "alias ls='ls --color=auto'" > /config/.bashrc && \
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echo "cd ." >> /config/.bashrc
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# permissions
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chown -R ${PUID:-abc}:${PGID:-abc} \
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/config
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# always create empty cron log file on start
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echo "" > "$LOGS_TO_STDOUT"
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# set up cron
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if [ "$CRON_SCHEDULE" != "" ] ; then
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[[ ! -e "$CRON_SCRIPT" ]] && \
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cp /defaults/cron "$CRON_SCRIPT"
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# create cron script wrapper
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echo '#!/bin/bash' > "$CRON_WRAPPER_SCRIPT"
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# Echo commands for easier user debugging:
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echo "set -x" >> "$CRON_WRAPPER_SCRIPT"
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echo "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" >> "$CRON_WRAPPER_SCRIPT"
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echo "cd \"$DEFAULT_WORKSPACE\"" >> "$CRON_WRAPPER_SCRIPT"
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echo ". \"$CRON_SCRIPT\" | tee -a \"$LOGS_TO_STDOUT\"" >> "$CRON_WRAPPER_SCRIPT"
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chmod +x "$CRON_WRAPPER_SCRIPT"
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chown abc:abc "$CRON_WRAPPER_SCRIPT"
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# Set the crontab file to the schedule, cleanly
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CRON_SCHEDULE_CLEAN="${CRON_SCHEDULE//\"/}"
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CRON_SCHEDULE_CLEAN="${CRON_SCHEDULE_CLEAN//\'/}"
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echo "# min hour day month weekday command" > /config/crontabs/abc
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echo "$CRON_SCHEDULE_CLEAN $CRON_WRAPPER_SCRIPT" >> /config/crontabs/abc
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chmod +x "$CRON_SCRIPT"
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chown abc:abc "$CRON_SCRIPT"
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crontab -u abc /config/crontabs/abc
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CRON_SUCCESS=$?
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if [ $CRON_SUCCESS -eq 0 ] ; then
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echo "Cron enabled with schedule $CRON_SCHEDULE_CLEAN"
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if [ "$CRON_RUN_ON_START" = true ] ; then
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echo "Running cron script on start in the background"
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# ensure it runs as abc to respect puid/guid with delay for tail to start
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su -s "/bin/bash" -c "sleep 5 && . '$CRON_WRAPPER_SCRIPT'" abc > /dev/null 2>&1 &
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fi
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else
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echo "Error in CRON_SCHEDULE definition, disabling cron."
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exit 1
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fi
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else
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echo "CRON_SCHEDULE not specified, leaving crontabs as-is. Current configuration in /config/crontabs/abc"
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cat /config/crontabs/abc
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fi
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