142 lines
5.1 KiB
Bash
142 lines
5.1 KiB
Bash
#!/bin/bash
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# install.sh — RemSound UDP relay installer for a stock Raspberry Pi (or any
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# systemd Linux). Idempotent: re-running it just refreshes the files and
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# restarts the service.
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#
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# Run with sudo from inside this folder:
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# sudo ./install.sh
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#
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# What it does:
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# 1. Sanity checks: systemd present, python3 present, curl present.
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# 2. Copies remsound-relay.py to /usr/local/sbin/.
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# 3. Copies remsound-relay.service to /etc/systemd/system/.
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# 4. Copies the auto-updater script + service + timer.
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# 5. Creates empty log files.
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# 6. Writes /etc/remsound-relay/version with the bundled tag.
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# 7. Snapshots the current install to /etc/remsound-relay/backup/ so the
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# auto-updater has somewhere to roll back to on a bad future release.
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# 8. systemctl daemon-reload, enable + start the relay + updater timer.
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# 9. Prints status and the last few log lines.
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set -euo pipefail
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if [[ $EUID -ne 0 ]]; then
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echo "This installer must run as root. Try: sudo ./install.sh" >&2
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exit 1
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fi
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SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
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REQUIRED=(
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remsound-relay.py
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remsound-relay.service
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remsound-relay-update.sh
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remsound-relay-update.service
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remsound-relay-update.timer
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VERSION
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)
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for f in "${REQUIRED[@]}"; do
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if [[ ! -f "$SCRIPT_DIR/$f" ]]; then
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echo "Bundle is missing $f. Run the installer from inside the unzipped bundle folder." >&2
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exit 1
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fi
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done
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if ! command -v systemctl >/dev/null 2>&1; then
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echo "systemctl not found. This bundle expects a systemd-based Linux." >&2
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exit 1
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fi
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if ! command -v python3 >/dev/null 2>&1; then
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echo "python3 not found. Install it first: sudo apt-get install -y python3" >&2
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exit 1
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fi
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if ! command -v curl >/dev/null 2>&1; then
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echo "curl not found. Install it first: sudo apt-get install -y curl" >&2
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exit 1
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fi
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VERSION_TAG="$(tr -d '[:space:]' < "$SCRIPT_DIR/VERSION")"
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echo "Installing RemSound relay bundle $VERSION_TAG ..."
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echo "Installing relay script to /usr/local/sbin/remsound-relay.py ..."
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install -o root -g root -m 755 "$SCRIPT_DIR/remsound-relay.py" /usr/local/sbin/remsound-relay.py
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python3 -m py_compile /usr/local/sbin/remsound-relay.py
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echo "Installing systemd unit to /etc/systemd/system/remsound-relay.service ..."
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install -o root -g root -m 644 "$SCRIPT_DIR/remsound-relay.service" /etc/systemd/system/remsound-relay.service
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echo "Installing auto-updater script to /usr/local/sbin/remsound-relay-update.sh ..."
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install -o root -g root -m 755 "$SCRIPT_DIR/remsound-relay-update.sh" /usr/local/sbin/remsound-relay-update.sh
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echo "Installing auto-updater systemd units ..."
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install -o root -g root -m 644 "$SCRIPT_DIR/remsound-relay-update.service" /etc/systemd/system/remsound-relay-update.service
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install -o root -g root -m 644 "$SCRIPT_DIR/remsound-relay-update.timer" /etc/systemd/system/remsound-relay-update.timer
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echo "Ensuring log files exist ..."
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touch /var/log/remsound-relay.log /var/log/remsound-relay-update.log
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chown root:root /var/log/remsound-relay.log /var/log/remsound-relay-update.log
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chmod 0644 /var/log/remsound-relay.log /var/log/remsound-relay-update.log
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echo "Writing version stamp ..."
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mkdir -p /etc/remsound-relay /etc/remsound-relay/backup
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printf '%s\n' "$VERSION_TAG" > /etc/remsound-relay/version
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echo "Snapshotting installed files to /etc/remsound-relay/backup/ for rollback ..."
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rm -rf /etc/remsound-relay/backup
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mkdir -p /etc/remsound-relay/backup
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for f in \
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/usr/local/sbin/remsound-relay.py \
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/usr/local/sbin/remsound-relay-update.sh \
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/etc/systemd/system/remsound-relay.service \
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/etc/systemd/system/remsound-relay-update.service \
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/etc/systemd/system/remsound-relay-update.timer \
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/etc/remsound-relay/version
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do
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if [[ -f "$f" ]]; then
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cp -a "$f" "/etc/remsound-relay/backup/$(basename "$f")"
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fi
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done
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echo "Reloading systemd ..."
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systemctl daemon-reload
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echo "Enabling and starting remsound-relay.service ..."
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systemctl enable remsound-relay.service >/dev/null
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systemctl restart remsound-relay.service
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echo "Enabling and starting remsound-relay-update.timer ..."
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systemctl enable remsound-relay-update.timer >/dev/null
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systemctl restart remsound-relay-update.timer
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sleep 1
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echo
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echo "=== relay service status ==="
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systemctl --no-pager --full status remsound-relay.service || true
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echo
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echo "=== updater timer status ==="
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systemctl --no-pager status remsound-relay-update.timer || true
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echo
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echo "=== last 10 relay log lines ==="
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tail -n 10 /var/log/remsound-relay.log 2>/dev/null || echo "(log empty so far)"
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echo
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echo "=== listening socket check ==="
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if command -v ss >/dev/null 2>&1; then
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ss -lunp 2>/dev/null | grep ':47830' || echo "WARNING: no listener on UDP 47830 — see service status above."
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else
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echo "(ss not installed, skipping)"
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fi
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echo
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echo "Install complete. The relay is running on UDP 47830."
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echo "Installed version: $VERSION_TAG"
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echo "Auto-updates: enabled (hourly via remsound-relay-update.timer)."
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echo
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echo "To disable auto-updates: sudo systemctl disable --now remsound-relay-update.timer"
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echo "To check for updates manually: sudo systemctl start remsound-relay-update.service"
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echo "Update history log: /var/log/remsound-relay-update.log"
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echo "See README.md for full operational notes."
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