Initial codex telegram bot source

scripts/start-codex-app-server

@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+ENV_FILE="$ROOT/.env"
+RUN_DIR="$ROOT/run"
+PID_FILE="$RUN_DIR/codex-app-server.pid"
+LOG_FILE="$RUN_DIR/codex-app-server.log"
+STDIN_FIFO="$RUN_DIR/codex-app-server.stdin"
+
+read_env_value() {
+  local key="$1"
+  if [[ -f "$ENV_FILE" ]]; then
+    awk -F= -v key="$key" '$1 == key { sub(/^[^=]*=/, ""); print; exit }' "$ENV_FILE"
+  fi
+}
+
+HOST_CODEX_SOCKET="${HOST_CODEX_SOCKET:-$(read_env_value HOST_CODEX_SOCKET)}"
+HOST_CODEX_SOCKET="${HOST_CODEX_SOCKET:-$RUN_DIR/codex.sock}"
+
+mkdir -p "$RUN_DIR"
+chmod 700 "$RUN_DIR"
+
+if [[ -f "$PID_FILE" ]]; then
+  old_pid="$(tr -cd '0-9' < "$PID_FILE" || true)"
+  if [[ -n "$old_pid" ]] && kill -0 "$old_pid" 2>/dev/null; then
+    if [[ -S "$HOST_CODEX_SOCKET" ]]; then
+      echo "codex app-server already running: pid=$old_pid socket=$HOST_CODEX_SOCKET"
+      exit 0
+    fi
+    echo "pid $old_pid is running but socket is missing; refusing to start a second app-server" >&2
+    exit 1
+  fi
+  rm -f "$PID_FILE"
+fi
+
+if [[ -e "$HOST_CODEX_SOCKET" ]]; then
+  if [[ -S "$HOST_CODEX_SOCKET" ]]; then
+    rm -f "$HOST_CODEX_SOCKET"
+  else
+    echo "socket path exists and is not a Unix socket: $HOST_CODEX_SOCKET" >&2
+    exit 1
+  fi
+fi
+
+rm -f "$STDIN_FIFO"
+mkfifo "$STDIN_FIFO"
+chmod 600 "$STDIN_FIFO"
+
+: > "$LOG_FILE"
+# Codex app-server currently exits if detached with stdin closed. A detached
+# wrapper keeps a private FIFO writer open and then runs Codex on the host.
+setsid -f bash -c '
+  echo "$$" > "$3"
+  tail -f /dev/null > "$1" &
+  writer=$!
+  trap "kill $writer 2>/dev/null || true" EXIT
+  codex app-server --listen "$2" < "$1"
+' codex-app-server "$STDIN_FIFO" "unix://$HOST_CODEX_SOCKET" "$PID_FILE" >> "$LOG_FILE" 2>&1
+
+for _ in $(seq 1 50); do
+  if [[ -f "$PID_FILE" ]]; then
+    break
+  fi
+  sleep 0.1
+done
+
+pid="$(tr -cd '0-9' < "$PID_FILE" 2>/dev/null || true)"
+if [[ -z "$pid" ]]; then
+  echo "codex app-server did not write a pid file; log follows:" >&2
+  sed -n '1,120p' "$LOG_FILE" >&2 || true
+  exit 1
+fi
+
+for _ in $(seq 1 100); do
+  if [[ -S "$HOST_CODEX_SOCKET" ]]; then
+    sleep 0.5
+    if kill -0 "$pid" 2>/dev/null; then
+      echo "codex app-server started: pid=$pid socket=$HOST_CODEX_SOCKET log=$LOG_FILE"
+      exit 0
+    fi
+  fi
+  if ! kill -0 "$pid" 2>/dev/null; then
+    echo "codex app-server exited before staying ready; log follows:" >&2
+    sed -n '1,120p' "$LOG_FILE" >&2 || true
+    rm -f "$PID_FILE"
+    exit 1
+  fi
+  sleep 0.1
+done
+
+echo "codex app-server did not create socket within 10 seconds; log follows:" >&2
+sed -n '1,120p' "$LOG_FILE" >&2 || true
+exit 1