Add native execution mode: run Plano without Docker

cli/planoai/native_binaries.py

@@ -0,0 +1,174 @@
+import os
+import platform
+import subprocess
+import sys
+import tarfile
+import tempfile
+
+from planoai.consts import (
+    ENVOY_VERSION,
+    PLANO_BIN_DIR,
+)
+from planoai.utils import find_repo_root, getLogger
+
+log = getLogger(__name__)
+
+
+def _get_platform_slug():
+    """Return the platform slug for Envoy binary downloads."""
+    system = platform.system().lower()
+    machine = platform.machine().lower()
+
+    mapping = {
+        ("linux", "x86_64"): "linux-amd64",
+        ("linux", "aarch64"): "linux-arm64",
+        ("darwin", "arm64"): "darwin-arm64",
+    }
+
+    slug = mapping.get((system, machine))
+    if slug is None:
+        if system == "darwin" and machine == "x86_64":
+            print(
+                "Error: macOS x86_64 (Intel) is not supported. "
+                "Pre-built Envoy binaries are only available for Apple Silicon (arm64)."
+            )
+            sys.exit(1)
+        print(
+            f"Error: Unsupported platform {system}/{machine}. "
+            "Supported platforms: linux-amd64, linux-arm64, darwin-arm64"
+        )
+        sys.exit(1)
+
+    return slug
+
+
+def ensure_envoy_binary():
+    """Download Envoy binary if not already present or version changed. Returns path to binary."""
+    envoy_path = os.path.join(PLANO_BIN_DIR, "envoy")
+    version_path = os.path.join(PLANO_BIN_DIR, "envoy.version")
+
+    if os.path.exists(envoy_path) and os.access(envoy_path, os.X_OK):
+        # Check if cached binary matches the pinned version
+        if os.path.exists(version_path):
+            with open(version_path, "r") as f:
+                cached_version = f.read().strip()
+            if cached_version == ENVOY_VERSION:
+                log.info(f"Envoy {ENVOY_VERSION} found at {envoy_path}")
+                return envoy_path
+            print(
+                f"Envoy version changed ({cached_version} → {ENVOY_VERSION}), re-downloading..."
+            )
+        else:
+            log.info(
+                f"Envoy binary found at {envoy_path} (unknown version, re-downloading...)"
+            )
+
+    slug = _get_platform_slug()
+    url = (
+        f"https://github.com/tetratelabs/archive-envoy/releases/download/"
+        f"{ENVOY_VERSION}/envoy-{ENVOY_VERSION}-{slug}.tar.xz"
+    )
+
+    os.makedirs(PLANO_BIN_DIR, exist_ok=True)
+
+    print(f"Downloading Envoy {ENVOY_VERSION} for {slug}...")
+    print(f"  URL: {url}")
+
+    with tempfile.NamedTemporaryFile(suffix=".tar.xz", delete=False) as tmp:
+        tmp_path = tmp.name
+
+    try:
+        subprocess.run(
+            ["curl", "-fSL", "-o", tmp_path, url],
+            check=True,
+        )
+
+        print("Extracting Envoy binary...")
+        with tarfile.open(tmp_path, "r:xz") as tar:
+            # Find the envoy binary inside the archive
+            envoy_member = None
+            for member in tar.getmembers():
+                if member.name.endswith("/bin/envoy") or member.name == "bin/envoy":
+                    envoy_member = member
+                    break
+
+            if envoy_member is None:
+                print("Error: Could not find envoy binary in the downloaded archive.")
+                print("Archive contents:")
+                for member in tar.getmembers():
+                    print(f"  {member.name}")
+                sys.exit(1)
+
+            # Extract just the binary
+            f = tar.extractfile(envoy_member)
+            if f is None:
+                print("Error: Could not extract envoy binary from archive.")
+                sys.exit(1)
+
+            with open(envoy_path, "wb") as out:
+                out.write(f.read())
+
+        os.chmod(envoy_path, 0o755)
+        with open(version_path, "w") as f:
+            f.write(ENVOY_VERSION)
+        print(f"Envoy {ENVOY_VERSION} installed at {envoy_path}")
+        return envoy_path
+
+    except subprocess.CalledProcessError as e:
+        print(f"Error downloading Envoy: {e}")
+        print(f"URL: {url}")
+        print("Please check your internet connection and try again.")
+        sys.exit(1)
+    finally:
+        if os.path.exists(tmp_path):
+            os.unlink(tmp_path)
+
+
+def find_wasm_plugins():
+    """Find WASM plugin files built from source. Returns (prompt_gateway_path, llm_gateway_path)."""
+    repo_root = find_repo_root()
+    if not repo_root:
+        print(
+            "Error: Could not find repository root. "
+            "Make sure you're inside the plano repository."
+        )
+        sys.exit(1)
+
+    wasm_dir = os.path.join(repo_root, "crates", "target", "wasm32-wasip1", "release")
+    prompt_gw = os.path.join(wasm_dir, "prompt_gateway.wasm")
+    llm_gw = os.path.join(wasm_dir, "llm_gateway.wasm")
+
+    missing = []
+    if not os.path.exists(prompt_gw):
+        missing.append("prompt_gateway.wasm")
+    if not os.path.exists(llm_gw):
+        missing.append("llm_gateway.wasm")
+
+    if missing:
+        print(f"Error: WASM plugins not found: {', '.join(missing)}")
+        print(f"  Expected at: {wasm_dir}/")
+        print("  Run 'planoai build --native' first to build them.")
+        sys.exit(1)
+
+    return prompt_gw, llm_gw
+
+
+def find_brightstaff_binary():
+    """Find the brightstaff binary built from source. Returns path."""
+    repo_root = find_repo_root()
+    if not repo_root:
+        print(
+            "Error: Could not find repository root. "
+            "Make sure you're inside the plano repository."
+        )
+        sys.exit(1)
+
+    brightstaff_path = os.path.join(
+        repo_root, "crates", "target", "release", "brightstaff"
+    )
+    if not os.path.exists(brightstaff_path):
+        print(f"Error: brightstaff binary not found at {brightstaff_path}")
+        print("  Run 'planoai build --native' first to build it.")
+        sys.exit(1)
+
+    return brightstaff_path