stream change events via syncthing REST API

syncthing-log-stream.sh

#!/usr/bin/env bash

# https://docs.syncthing.net/rest/events-get.html
# https://docs.syncthing.net/dev/events.html#event-types

APIKEY=$(defaults read com.github.xor-gate.syncthing-macosx ApiKey)
[[ -n "$APIKEY" ]] || { echo "error retreiving API key"; exit 1; }
ENDPOINT='http://localhost:8384/rest/events/disk'
INTERVAL=2

_wait() {
  sleep $INTERVAL
}

while true ; do

JSON=$(curl -s -H "X-API-Key: $APIKEY" "$ENDPOINT?timeout=$INTERVAL&since=$LAST" 2>/dev/null)
[[ -n "$JSON" ]] || { _wait; continue; }
LAST=$(jq -r '.[-1].id' <<<"$JSON" 2>/dev/null)
if [[ $LAST != "$LATEST" ]] && [[ $LAST != "null" ]]; then
  LATEST=$LAST
  jq -r '.[] | . as $r | .data | [
    ($r.time | sub("\\.[0-9]{3,}.*$"; "") | sub("T"; " ")),
    $r.id,
    ([ .modifiedBy, "("+($r.type | sub("ChangeDetected"; ""))+")", .action,.type ] | join(" ")),
    .path
  ] | @tsv' <<<"$JSON"
fi

_wait

done