Squid
5a0e2e630b
Ship the Go/SQLite API and Web UI, Chrome/Brave capture addon, Docker Compose, Pangolin reverse-proxy support, and a user-crontab watchdog so the binary stays running without systemd.
62 lines
1.6 KiB
Bash
Executable File
62 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Ensure the RCS backend is running (intended for user crontab every minute).
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# Does not rebuild the binary — run `make build` first.
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set -euo pipefail
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REPO="$(cd "$(dirname "$0")/.." && pwd)"
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BIN="${RCS_BIN:-$REPO/bin/rcs}"
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DATA_DIR="${RCS_DATA_DIR_OVERRIDE:-$REPO/data}"
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PIDFILE="${RCS_PIDFILE:-$DATA_DIR/rcs.pid}"
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LOG="${RCS_LOG:-$DATA_DIR/rcs.log}"
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ENVFILE="${RCS_ENV_FILE:-$DATA_DIR/rcs.env}"
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LOCKFILE="${RCS_LOCKFILE:-$DATA_DIR/rcs.watchdog.lock}"
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mkdir -p "$DATA_DIR"
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exec 9>"$LOCKFILE"
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if ! flock -n 9; then
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# Another watchdog instance is starting the process.
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exit 0
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fi
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log_msg() {
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local line="[$(date -Iseconds)] $*"
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echo "$line" >>"$LOG"
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}
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if [[ ! -x "$BIN" ]]; then
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log_msg "ERROR: binary missing or not executable: $BIN (run: make build)"
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echo "rcs-watchdog: binary missing: $BIN" >&2
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exit 1
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fi
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if [[ -f "$PIDFILE" ]]; then
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old_pid="$(tr -d '[:space:]' <"$PIDFILE" || true)"
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if [[ -n "${old_pid:-}" ]] && kill -0 "$old_pid" 2>/dev/null; then
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exit 0
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fi
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rm -f "$PIDFILE"
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fi
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# Absolute data dir so cron cwd ($HOME) does not matter.
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export RCS_DATA_DIR="$DATA_DIR"
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if [[ -f "$ENVFILE" ]]; then
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# shellcheck disable=SC1090
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set -a
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# shellcheck disable=SC1090
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source "$ENVFILE"
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set +a
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# Keep data under the repo unless the env file overrides with an absolute path.
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if [[ -z "${RCS_DATA_DIR:-}" || "${RCS_DATA_DIR}" == "data" || "${RCS_DATA_DIR}" == "./data" ]]; then
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export RCS_DATA_DIR="$DATA_DIR"
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fi
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fi
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cd "$REPO"
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nohup "$BIN" >>"$LOG" 2>&1 &
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new_pid=$!
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echo "$new_pid" >"$PIDFILE"
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log_msg "started $BIN pid=$new_pid"
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exit 0
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