First Version

2026-07-10 15:02:09 +01:00
commit 38494a85a9
562 changed files with 196313 additions and 0 deletions
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+#!/usr/bin/env sh
+# Supervisor loop for Skald.
+#
+# Runs a pre-built binary — it never compiles. Build with ./build.sh first:
+#
+#     ./build.sh && ./run.sh
+#
+# App exit codes:
+#   0    graceful shutdown (SIGINT/SIGTERM) → stop the loop
+#   255  restart requested (`restart` tool → libc::_exit(-1)) → re-exec
+#   *    error → propagate and stop
+#
+# The loop re-executes the binary *by path*, so running ./build.sh while the
+# supervisor is up and then asking the agent to restart loads the new build.
+# Note that `restart` alone no longer rebuilds: edit source, ./build.sh, restart.
+
+set -u
+
+cd "$(dirname "$0")"
+
+# ── Locate the binary ────────────────────────────────────────────────────────
+# $SKALD_BIN wins; otherwise prefer the installed bin/, falling back to a plain
+# `cargo build --release` output so an existing dev tree keeps working.
+if [ -n "${SKALD_BIN:-}" ]; then
+    BIN="$SKALD_BIN"
+elif [ -x "bin/skald" ]; then
+    BIN="bin/skald"
+elif [ -x "target/release/skald" ]; then
+    BIN="target/release/skald"
+else
+    echo "[run.sh] No Skald binary found. Build one first:" >&2
+    echo "[run.sh]     ./build.sh" >&2
+    exit 1
+fi
+
+if [ ! -x "$BIN" ]; then
+    echo "[run.sh] $BIN is not executable." >&2
+    exit 1
+fi
+
+# Splitting build from run makes "I forgot to rebuild" the obvious failure mode.
+if [ -n "$(find src crates Cargo.toml -newer "$BIN" 2>/dev/null | head -n 1)" ]; then
+    echo "[run.sh] Warning: sources are newer than $BIN — run ./build.sh to pick them up."
+fi
+
+# ── Python venv setup (optional) ─────────────────────────────────────────────
+# Creates .venv/ and installs requirements.txt if Python is available.
+# If Python is not installed, the app starts normally but Python-based MCP
+# servers (e.g. Gmail, Google Calendar) will fail to connect.
+VENV_DIR=".venv"
+REQUIREMENTS="requirements.txt"
+
+if [ ! -f "$VENV_DIR/bin/python3" ]; then
+    if command -v uv >/dev/null 2>&1; then
+        echo "[run.sh] Setting up Python venv with uv …"
+        uv venv "$VENV_DIR" && uv pip install -r "$REQUIREMENTS" \
+            && echo "[run.sh] Python venv ready." \
+            || echo "[run.sh] Warning: Python venv setup failed — Python MCP servers will be unavailable."
+    elif command -v python3 >/dev/null 2>&1; then
+        echo "[run.sh] Setting up Python venv …"
+        python3 -m venv "$VENV_DIR" && "$VENV_DIR/bin/pip" install -r "$REQUIREMENTS" \
+            && echo "[run.sh] Python venv ready." \
+            || echo "[run.sh] Warning: Python venv setup failed — Python MCP servers will be unavailable."
+    else
+        echo "[run.sh] Warning: python3 not found — Python MCP servers will be unavailable."
+    fi
+fi
+
+# If the venv was created, prepend it to PATH so every child process resolves
+# python3 to the venv automatically (MCP servers, agent shell commands, etc.).
+if [ -f "$VENV_DIR/bin/python3" ]; then
+    export PATH="$(pwd)/$VENV_DIR/bin:$PATH"
+fi
+
+echo "[run.sh] Supervising $BIN"
+
+while true; do
+    "$BIN"
+    code=$?
+
+    if [ "$code" -eq 0 ]; then
+        echo "[run.sh] App exited cleanly. Stopping."
+        exit 0
+    elif [ "$code" -eq 255 ]; then
+        echo "[run.sh] App requested restart (exit -1). Re-executing $BIN …"
+        continue
+    else
+        echo "[run.sh] App exited with code $code. Stopping."
+        exit "$code"
+    fi
+done