mirror of
https://github.com/mistergibson/radio.git
synced 2026-09-08 22:09:51 -07:00
341 lines
13 KiB
Shell
Executable file
341 lines
13 KiB
Shell
Executable file
#!/usr/bin/env bash
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#
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# install_for_jruby - Provision the JRuby radio automation stack.
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# Idempotent: safe to re-run. Derives the service name from this file's
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# containing directory basename. Must be run as root.
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#
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set -euo pipefail
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if [[ $EUID -ne 0 ]]; then
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echo "ERROR: this installer must be run as root." >&2
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exit 1
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fi
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INSTALL_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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SERVICE_NAME="$(basename "$INSTALL_DIR")"
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UNIT_FILE="/etc/systemd/system/${SERVICE_NAME}.service"
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LIQUIDSOAP_USER="liquidsoap"
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JRUBY_HOME_PINNED="/opt/jruby"
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JRUBY_VERSION="10.1.1.0"
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GEMS_DIR="${INSTALL_DIR}/.gems"
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echo "==> Installing ${SERVICE_NAME} (JRuby stack) from ${INSTALL_DIR}"
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# ---------------------------------------------------------------------------
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# 1. Base packages
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# ---------------------------------------------------------------------------
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echo "==> Ensuring base packages..."
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export DEBIAN_FRONTEND=noninteractive
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apt-get update -qq
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apt-get install -y -qq \
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liquidsoap icecast2 jq curl unzip ca-certificates >/dev/null
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if ! id -u "$LIQUIDSOAP_USER" >/dev/null 2>&1; then
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useradd --system --create-home --shell /usr/sbin/nologin "$LIQUIDSOAP_USER"
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echo " created system user '${LIQUIDSOAP_USER}'"
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fi
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# ---------------------------------------------------------------------------
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# 2. Java detection / install
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# ---------------------------------------------------------------------------
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have_java() {
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command -v java >/dev/null 2>&1 || return 1
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local major
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major=$(java -version 2>&1 | awk -F '"' '/version/ {print $2}' | cut -d. -f1)
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[[ "$major" == "1" ]] && major=$(java -version 2>&1 | awk -F '"' '/version/ {print $2}' | cut -d. -f2)
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[[ -n "$major" && "$major" -ge 21 ]]
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}
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if have_java; then
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echo "==> Reusing existing JVM ($(java -version 2>&1 | head -1))."
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else
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echo "==> No suitable JVM found; installing OpenJDK 21 headless..."
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apt-get install -y -qq openjdk-21-jdk-headless >/dev/null
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fi
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# ---------------------------------------------------------------------------
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# 3. JRuby detection / install
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# ---------------------------------------------------------------------------
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have_jruby() {
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if [[ -x "${JRUBY_HOME_PINNED}/bin/jruby" ]]; then
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echo "${JRUBY_HOME_PINNED}/bin/jruby"; return 0
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fi
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if command -v jruby >/dev/null 2>&1; then
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command -v jruby; return 0
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fi
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return 1
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}
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if JRUBY_BIN=$(have_jruby); then
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echo "==> Reusing existing JRuby at ${JRUBY_BIN}."
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else
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echo "==> Downloading JRuby ${JRUBY_VERSION} into ${JRUBY_HOME_PINNED} ..."
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mkdir -p "$JRUBY_HOME_PINNED"
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TARBALL="/tmp/jruby-${JRUBY_VERSION}-bin.tar.gz"
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URL="https://repo1.maven.org/maven2/org/jruby/jruby-dist/${JRUBY_VERSION}/jruby-dist-${JRUBY_VERSION}-bin.tar.gz"
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curl -fsSL "$URL" -o "$TARBALL"
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tar -xzf "$TARBALL" -C "$JRUBY_HOME_PINNED" --strip-components=1
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rm -f "$TARBALL"
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JRUBY_BIN="${JRUBY_HOME_PINNED}/bin/jruby"
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fi
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# ---------------------------------------------------------------------------
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# 4. Register via update-alternatives
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# ---------------------------------------------------------------------------
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echo "==> Integrating JRuby via update-alternatives ..."
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for tool in jruby gem bundle rake irb; do
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target="${JRUBY_BIN%/*}/${tool}"
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if [[ -x "$target" ]]; then
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ln -sf "$target" "/usr/local/bin/${tool}"
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update-alternatives --install "/usr/local/bin/${tool}" "${tool}" "$target" 100 || true
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fi
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done
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# ---------------------------------------------------------------------------
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# 5. Gems (one at a time, raised heap). Order matters: jdbc-sqlite3 first so
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# it's present when sequel loads its JDBC SQLite subadapter.
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# ---------------------------------------------------------------------------
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export GEM_HOME="$GEMS_DIR"
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export GEM_PATH="$GEMS_DIR"
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export JRUBY_OPTS="-J-Xmx1g -J-Xss512k"
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echo "==> Installing gems one at a time into ${GEMS_DIR} ..."
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"$JRUBY_BIN" -S gem install --no-document jdbc-sqlite3
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"$JRUBY_BIN" -S gem install --no-document sequel
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"$JRUBY_BIN" -S gem install --no-document json
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# Give the service user ownership of the gem cache so cron runs work.
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chown -R "$LIQUIDSOAP_USER":"$LIQUIDSOAP_USER" "$GEMS_DIR"
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# ---------------------------------------------------------------------------
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# 6. Interactive configuration (defaults from existing config.json)
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# ---------------------------------------------------------------------------
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CONFIG_JSON="${INSTALL_DIR}/config.json"
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prompt() {
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local prompt_text="$1" default="${2:-}"
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local current=""
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if [[ -n "$default" ]]; then
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read -rp "${prompt_text} [${default}]: " current || true
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echo "${current:-$default}"
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else
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read -rp "${prompt_text}: " current || true
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echo "$current"
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fi
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}
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existing_storage="" ; existing_ic_host="" ; existing_ic_port=""
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existing_ic_mount="" ; existing_ic_user="" ; existing_ic_pass=""
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existing_gp_enable="" ; existing_gp_host="" ; existing_gp_user="" ; existing_gp_pass=""
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if [[ -f "$CONFIG_JSON" ]]; then
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echo "==> Found existing config.json; using it for defaults."
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existing_storage=$(jq -r '.storage // empty' "$CONFIG_JSON")
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existing_ic_host=$(jq -r '.icecast.host // empty' "$CONFIG_JSON")
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existing_ic_port=$(jq -r '.icecast.port // empty' "$CONFIG_JSON")
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existing_ic_mount=$(jq -r '.icecast.mount // empty' "$CONFIG_JSON")
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existing_ic_user=$(jq -r '.icecast.username // empty' "$CONFIG_JSON")
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existing_ic_pass=$(jq -r '.icecast.password // empty' "$CONFIG_JSON")
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existing_gp_enable=$(jq -r '.gpodder.enable // empty' "$CONFIG_JSON")
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existing_gp_host=$(jq -r '.gpodder.host // empty' "$CONFIG_JSON")
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existing_gp_user=$(jq -r '.gpodder.username // empty' "$CONFIG_JSON")
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existing_gp_pass=$(jq -r '.gpodder.password // empty' "$CONFIG_JSON")
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fi
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echo ""
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echo "--- Storage ---"
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STORAGE_PATH=$(prompt "Storage path (media + state + logs)" "${existing_storage:-/mnt/storage/radio}")
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[[ -z "$STORAGE_PATH" ]] && STORAGE_PATH="${existing_storage:-/mnt/storage/radio}"
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echo ""
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echo "--- Icecast (source credentials) ---"
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IC_HOST=$(prompt "Icecast host" "$existing_ic_host"); IC_HOST=${IC_HOST:-localhost}
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IC_PORT=$(prompt "Icecast source port" "$existing_ic_port"); IC_PORT=${IC_PORT:-7777}
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IC_MOUNT=$(prompt "Mount point" "$existing_ic_mount"); IC_MOUNT=${IC_MOUNT:-/data}
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IC_USER=$(prompt "Source username" "$existing_ic_user"); IC_USER=${IC_USER:-source}
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read -rsp "Source password: " IC_PASS || true; echo; IC_PASS=${IC_PASS:-$existing_ic_pass}
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echo ""
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echo "--- gPodder sync (optional) ---"
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GP_ENABLE=$(prompt "Enable gPodder sync? (true/false)" "$existing_gp_enable"); GP_ENABLE=${GP_ENABLE:-false}
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GP_HOST=$(prompt "gPodder host" "$existing_gp_host"); GP_HOST=${GP_HOST:-https://gpodder.net}
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GP_USER=$(prompt "gPodder username" "$existing_gp_user")
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read -rsp "gPodder password: " GP_PASS || true; echo; GP_PASS=${GP_PASS:-$existing_gp_pass}
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echo ""
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echo "Summary:"
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echo " Storage : $STORAGE_PATH"
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echo " Icecast : $IC_USER@$IC_HOST:$IC_PORT mount=$IC_MOUNT"
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echo " gPodder : enabled=$GP_ENABLE ($GP_USER @ $GP_HOST)"
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read -rp "Proceed? [y/N]: " confirm || true
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case "$confirm" in
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[Yy]*) ;;
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*) echo "Aborted."; exit 0 ;;
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esac
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# ---------------------------------------------------------------------------
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# 7. Directory tree
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# ---------------------------------------------------------------------------
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echo "==> Creating directory tree under $STORAGE_PATH ..."
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mkdir -p "$STORAGE_PATH"/{music,podcasts,jingles,announcements,state,playlists,logs}
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chown -R "$LIQUIDSOAP_USER":"$LIQUIDSOAP_USER" "$STORAGE_PATH"
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# ---------------------------------------------------------------------------
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# 8. Write config.json (mode 600)
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# ---------------------------------------------------------------------------
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echo "==> Writing $CONFIG_JSON ..."
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cat > "$CONFIG_JSON" <<EOF
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{
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"storage": "${STORAGE_PATH}",
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"icecast": {
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"host": "${IC_HOST}",
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"port": ${IC_PORT},
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"mount": "${IC_MOUNT}",
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"username": "${IC_USER}",
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"password": "${IC_PASS}"
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},
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"gpodder": {
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"enable": $( [[ "$GP_ENABLE" =~ ^([Tt][Rr][Uu][Ee]|1)$ ]] && echo true || echo false ),
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"host": "${GP_HOST}",
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"username": "${GP_USER}",
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"password": "${GP_PASS}"
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}
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}
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EOF
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chmod 600 "$CONFIG_JSON"
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chown "$LIQUIDSOAP_USER":"$LIQUIDSOAP_USER" "$CONFIG_JSON"
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# ---------------------------------------------------------------------------
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# 9. Initialize BOTH SQLite databases with the full current schema.
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# Uses Sequel over jdbc-sqlite3, matching how the Ruby scripts access the
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# DB at runtime. Idempotent via IF NOT EXISTS semantics.
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# ---------------------------------------------------------------------------
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echo "==> Initializing SQLite databases via Sequel/jdbc-sqlite3 ..."
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GEM_HOME="$GEMS_DIR" GEM_PATH="$GEMS_DIR" "$JRUBY_BIN" -e '
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require "sequel"
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state_dir = ARGV[0]
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subs_path = File.join(state_dir, "subscriptions.db")
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played_path = File.join(state_dir, "played.db")
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db = Sequel.connect("jdbc:sqlite:#{subs_path}")
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db.extension :pragma
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db.pragma journal_mode: :wal
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db.pragma busy_timeout: 5000
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unless db.table_exists?(:shows)
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db.create_table(:shows) do |t|
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t.primary_key :slug, type: :string
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t.string :guid, null: false, unique: true
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t.string :name, null: false
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t.string :feed_url, null: false, unique: true
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t.string :source, default: "manual"
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t.integer :opml_import, default: 0
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t.integer :archived, default: 1
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t.string :media_class
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t.string :created_at
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end
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end
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db.disconnect
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db = Sequel.connect("jdbc:sqlite:#{played_path}")
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db.extension :pragma
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db.pragma journal_mode: :wal
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db.pragma busy_timeout: 5000
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unless db.table_exists?(:episodes)
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db.create_table(:episodes) do |t|
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t.primary_key :id
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t.string :show_slug, null: false
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t.string :guid, null: false
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t.string :title
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t.string :file_path
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t.string :enclosure_url
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t.integer :runlength
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t.integer :played, default: 0
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t.string :played_at
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t.unique_constraint %i[show_slug guid]
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end
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end
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unless db.index_exists?(:episodes, [:show_slug, :played])
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db.create_index(:episodes, [:show_slug, :played], name: :idx_episodes_show_played)
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end
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db.disconnect
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puts " subscriptions.db and played.db initialized."
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' "$STORAGE_PATH/state"
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chown -R "$LIQUIDSOAP_USER":"$LIQUIDSOAP_USER" "$STORAGE_PATH/state"
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# ---------------------------------------------------------------------------
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# 10. systemd unit (named after the directory)
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# ---------------------------------------------------------------------------
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echo "==> Writing systemd unit ${UNIT_FILE} ..."
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cat > "$UNIT_FILE" <<EOF
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[Unit]
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Description=Radio automation (${SERVICE_NAME}) - liquidsoap
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After=network-online.target icecast2.service
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Wants=network-online.target
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[Service]
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Type=simple
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User=${LIQUIDSOAP_USER}
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WorkingDirectory=${INSTALL_DIR}
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Environment=GEM_HOME=${GEMS_DIR}
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Environment=GEM_PATH=${GEMS_DIR}
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Environment=JRUBY_OPTS=-J-Xmx1g -J-Xss512k
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ExecStart=${JRUBY_BIN} ${INSTALL_DIR}/station.rb
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Restart=on-failure
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RestartSec=5
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[Install]
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WantedBy=multi-user.target
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EOF
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# Minimal Ruby runner that execs liquidsoap on station.liq from the install dir.
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cat > "${INSTALL_DIR}/station.rb" <<'RBRUN'
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Dir.chdir(File.expand_path(__dir__))
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exec("liquidsoap", File.expand_path("station.liq"))
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RBRUN
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chown "$LIQUIDSOAP_USER":"$LIQUIDSOAP_USER" "${INSTALL_DIR}/station.rb"
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# Allow the service user to traverse the install dir.
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chmod o+x "$INSTALL_DIR"
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systemctl daemon-reload
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# ---------------------------------------------------------------------------
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# 11. Cron jobs — installed into the liquidsoap user's crontab so all
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# database/media writes happen under the same identity as the service.
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# ---------------------------------------------------------------------------
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echo "==> Setting up cron jobs under user '${LIQUIDSOAP_USER}' ..."
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FETCH_PREFIX="cd ${INSTALL_DIR} && GEM_HOME=${GEMS_DIR} GEM_PATH=${GEMS_DIR} ${JRUBY_BIN} -S fetch_podcasts.rb"
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UPDATE_PREFIX="cd ${INSTALL_DIR} && GEM_HOME=${GEMS_DIR} GEM_PATH=${GEMS_DIR} ${JRUBY_BIN} -S update_playlists.rb"
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FETCH_CRON="0 * * * * ${FETCH_PREFIX} >> ${STORAGE_PATH}/logs/fetch.log 2>&1"
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UPDATE_CRON="30 * * * * ${UPDATE_PREFIX} >> ${STORAGE_PATH}/logs/update.log 2>&1"
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# Remove any stale entries from the liquidsoap user's crontab, then add ours.
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sudo -u "$LIQUIDSOAP_USER" crontab -l 2>/dev/null | grep -vF "fetch_podcasts.rb" | grep -vF "update_playlists.rb" > /tmp/cron_ls_rb.$$ || true
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echo "$FETCH_CRON" >> /tmp/cron_ls_rb.$$
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echo "$UPDATE_CRON" >> /tmp/cron_ls_rb.$$
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sudo -u "$LIQUIDSOAP_USER" crontab /tmp/cron_ls_rb.$$
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rm -f /tmp/cron_ls_rb.$$
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# Also scrub these from root's crontab in case an earlier install put them there.
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crontab -l 2>/dev/null | grep -vF "fetch_podcasts.rb" | grep -vF "update_playlists.rb" > /tmp/cron_root_rb.$$ || true
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crontab /tmp/cron_root_rb.$$
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rm -f /tmp/cron_root_rb.$$
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# ---------------------------------------------------------------------------
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# 12. Enable services
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# ---------------------------------------------------------------------------
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systemctl enable icecast2 "$SERVICE_NAME"
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echo "==> Enabling icecast2 and ${SERVICE_NAME} at boot."
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echo ""
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echo "============================================================"
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echo " Installation complete."
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echo ""
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echo " Next steps:"
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echo " 1. Drop background music into ${STORAGE_PATH}/music/"
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echo " 2. Edit ${INSTALL_DIR}/schedule.txt for scheduled shows"
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echo " 3. Review ${INSTALL_DIR}/station.liq"
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echo " 4. Start: systemctl start icecast2 ${SERVICE_NAME}"
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echo "============================================================"
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