|
| 1 | +#!/usr/bin/env python3 |
| 2 | +""" |
| 3 | +Download minicore binary for the current platform. |
| 4 | +Designed to be used by cibuildwheel during wheel building. |
| 5 | +
|
| 6 | +Usage: |
| 7 | + python scripts/download_minicore.py [VERSION] |
| 8 | +
|
| 9 | +Environment variables: |
| 10 | + MINICORE_VERSION - Version to download (default: 0.0.1) |
| 11 | + MINICORE_OUTPUT_DIR - Output directory (default: src/snowflake/connector/minicore) |
| 12 | +""" |
| 13 | + |
| 14 | +from __future__ import annotations |
| 15 | + |
| 16 | +import os |
| 17 | +import platform |
| 18 | +import sys |
| 19 | +import tarfile |
| 20 | +import tempfile |
| 21 | +from pathlib import Path |
| 22 | +from urllib.error import HTTPError, URLError |
| 23 | +from urllib.request import Request, urlopen |
| 24 | + |
| 25 | +# Configuration |
| 26 | +BASE_URL = "https://sfc-repo.snowflakecomputing.com/minicore" |
| 27 | +DEFAULT_VERSION = "0.0.1" |
| 28 | + |
| 29 | +# Target directory for minicore module (relative to repo root) |
| 30 | +MINICORE_MODULE_PATH = Path("src/snowflake/connector/minicore") |
| 31 | + |
| 32 | + |
| 33 | +def get_repo_root() -> Path: |
| 34 | + """Get the repository root directory.""" |
| 35 | + current = Path(__file__).resolve().parent |
| 36 | + while current != current.parent: |
| 37 | + if (current / "pyproject.toml").exists() or (current / "setup.py").exists(): |
| 38 | + return current |
| 39 | + current = current.parent |
| 40 | + return Path(__file__).resolve().parent.parent |
| 41 | + |
| 42 | + |
| 43 | +def detect_os() -> str: |
| 44 | + """Detect the operating system.""" |
| 45 | + system = platform.system().lower() |
| 46 | + if system == "linux": |
| 47 | + return "linux" |
| 48 | + elif system == "darwin": |
| 49 | + return "macos" |
| 50 | + elif system == "windows": |
| 51 | + return "windows" |
| 52 | + elif system == "aix": |
| 53 | + return "aix" |
| 54 | + else: |
| 55 | + return "unknown" |
| 56 | + |
| 57 | + |
| 58 | +def detect_arch() -> str: |
| 59 | + """Detect the CPU architecture.""" |
| 60 | + machine = platform.machine().lower() |
| 61 | + if machine in ("x86_64", "amd64"): |
| 62 | + return "x86_64" |
| 63 | + elif machine in ("aarch64", "arm64"): |
| 64 | + return "aarch64" |
| 65 | + elif machine in ("i686", "i386", "x86"): |
| 66 | + return "i686" |
| 67 | + elif machine == "ppc64": |
| 68 | + return "ppc64" |
| 69 | + else: |
| 70 | + return "unknown" |
| 71 | + |
| 72 | + |
| 73 | +def detect_libc() -> str: |
| 74 | + """Detect libc type on Linux (glibc vs musl).""" |
| 75 | + if detect_os() != "linux": |
| 76 | + return "" |
| 77 | + |
| 78 | + # Check if we're on Alpine/musl |
| 79 | + if Path("/etc/alpine-release").exists(): |
| 80 | + return "musl" |
| 81 | + |
| 82 | + # Check for musl by looking at the libc library |
| 83 | + try: |
| 84 | + import subprocess |
| 85 | + |
| 86 | + result = subprocess.run( |
| 87 | + ["ldd", "--version"], |
| 88 | + capture_output=True, |
| 89 | + text=True, |
| 90 | + ) |
| 91 | + if "musl" in result.stdout.lower() or "musl" in result.stderr.lower(): |
| 92 | + return "musl" |
| 93 | + except Exception: |
| 94 | + pass |
| 95 | + |
| 96 | + # Default to glibc |
| 97 | + return "glibc" |
| 98 | + |
| 99 | + |
| 100 | +def get_platform_dir(os_name: str, arch: str) -> str: |
| 101 | + """Build platform directory name for URL.""" |
| 102 | + if os_name == "linux": |
| 103 | + return f"linux_{arch}" |
| 104 | + elif os_name == "macos": |
| 105 | + return f"mac_{arch}" |
| 106 | + elif os_name == "windows": |
| 107 | + return f"windows_{arch}" |
| 108 | + elif os_name == "aix": |
| 109 | + return f"aix_{arch}" |
| 110 | + else: |
| 111 | + return "" |
| 112 | + |
| 113 | + |
| 114 | +def get_filename_arch(os_name: str, arch: str, libc: str) -> str: |
| 115 | + """Build filename architecture component.""" |
| 116 | + if os_name == "linux": |
| 117 | + return f"linux-{arch}-{libc}" |
| 118 | + elif os_name == "macos": |
| 119 | + return f"macos-{arch}" |
| 120 | + elif os_name == "windows": |
| 121 | + return f"windows-{arch}" |
| 122 | + elif os_name == "aix": |
| 123 | + return f"aix-{arch}" |
| 124 | + else: |
| 125 | + return "" |
| 126 | + |
| 127 | + |
| 128 | +def build_download_url(platform_dir: str, filename_arch: str, version: str) -> str: |
| 129 | + """Build the download URL.""" |
| 130 | + filename = f"sf_mini_core_{filename_arch}_{version}.tar.gz" |
| 131 | + return f"{BASE_URL}/{platform_dir}/{version}/{filename}" |
| 132 | + |
| 133 | + |
| 134 | +def download_file(url: str, dest_path: Path) -> None: |
| 135 | + """Download a file from URL to destination path.""" |
| 136 | + print(f"Downloading: {url}") |
| 137 | + request = Request(url, headers={"User-Agent": "Python/minicore-downloader"}) |
| 138 | + try: |
| 139 | + with urlopen(request, timeout=60) as response: |
| 140 | + content = response.read() |
| 141 | + dest_path.write_bytes(content) |
| 142 | + file_size_mb = len(content) / (1024 * 1024) |
| 143 | + print(f"Downloaded {file_size_mb:.2f} MB") |
| 144 | + except HTTPError as e: |
| 145 | + print(f"HTTP Error {e.code}: {e.reason}", file=sys.stderr) |
| 146 | + raise |
| 147 | + except URLError as e: |
| 148 | + print(f"URL Error: {e.reason}", file=sys.stderr) |
| 149 | + raise |
| 150 | + |
| 151 | + |
| 152 | +def extract_tar_gz(tar_path: Path, extract_to: Path) -> None: |
| 153 | + """Extract a tar.gz file to the specified directory.""" |
| 154 | + print(f"Extracting to: {extract_to}") |
| 155 | + extract_to.mkdir(parents=True, exist_ok=True) |
| 156 | + |
| 157 | + with tarfile.open(tar_path, "r:gz") as tar: |
| 158 | + # Security check: prevent path traversal attacks |
| 159 | + for member in tar.getmembers(): |
| 160 | + member_path = extract_to / member.name |
| 161 | + try: |
| 162 | + member_path.resolve().relative_to(extract_to.resolve()) |
| 163 | + except ValueError: |
| 164 | + print( |
| 165 | + f"Skipping potentially unsafe path: {member.name}", file=sys.stderr |
| 166 | + ) |
| 167 | + continue |
| 168 | + |
| 169 | + # The 'filter' parameter was added in Python 3.12 |
| 170 | + if sys.version_info >= (3, 12): |
| 171 | + tar.extractall(path=extract_to, filter="data") |
| 172 | + else: |
| 173 | + tar.extractall(path=extract_to) |
| 174 | + |
| 175 | + |
| 176 | +def main() -> int: |
| 177 | + # Get version from environment or command line |
| 178 | + version = os.environ.get("MINICORE_VERSION") |
| 179 | + if not version and len(sys.argv) > 1: |
| 180 | + version = sys.argv[1] |
| 181 | + if not version: |
| 182 | + version = DEFAULT_VERSION |
| 183 | + |
| 184 | + # Get output directory |
| 185 | + output_dir_env = os.environ.get("MINICORE_OUTPUT_DIR") |
| 186 | + if output_dir_env: |
| 187 | + output_dir = Path(output_dir_env) |
| 188 | + else: |
| 189 | + repo_root = get_repo_root() |
| 190 | + output_dir = repo_root / MINICORE_MODULE_PATH |
| 191 | + |
| 192 | + # Detect platform |
| 193 | + os_name = detect_os() |
| 194 | + arch = detect_arch() |
| 195 | + libc = detect_libc() |
| 196 | + |
| 197 | + print(f"Detected OS: {os_name}") |
| 198 | + print(f"Detected architecture: {arch}") |
| 199 | + if libc: |
| 200 | + print(f"Detected libc: {libc}") |
| 201 | + |
| 202 | + if os_name == "unknown" or arch == "unknown": |
| 203 | + print( |
| 204 | + f"Error: Unsupported platform: OS={os_name}, ARCH={arch}", file=sys.stderr |
| 205 | + ) |
| 206 | + return 1 |
| 207 | + |
| 208 | + # Build URL components |
| 209 | + platform_dir = get_platform_dir(os_name, arch) |
| 210 | + filename_arch = get_filename_arch(os_name, arch, libc) |
| 211 | + |
| 212 | + if not platform_dir or not filename_arch: |
| 213 | + print( |
| 214 | + "Error: Could not determine platform/architecture mapping", file=sys.stderr |
| 215 | + ) |
| 216 | + return 1 |
| 217 | + |
| 218 | + url = build_download_url(platform_dir, filename_arch, version) |
| 219 | + |
| 220 | + print(f"Version: {version}") |
| 221 | + print(f"Download URL: {url}") |
| 222 | + print(f"Output directory: {output_dir}") |
| 223 | + |
| 224 | + # Download to temp file and extract |
| 225 | + with tempfile.TemporaryDirectory() as temp_dir: |
| 226 | + temp_path = Path(temp_dir) / f"sf_mini_core_{filename_arch}_{version}.tar.gz" |
| 227 | + |
| 228 | + try: |
| 229 | + download_file(url, temp_path) |
| 230 | + extract_tar_gz(temp_path, output_dir) |
| 231 | + except Exception as e: |
| 232 | + print(f"Error: {e}", file=sys.stderr) |
| 233 | + return 1 |
| 234 | + |
| 235 | + print("Done!") |
| 236 | + |
| 237 | + # List extracted files |
| 238 | + for item in sorted(output_dir.iterdir()): |
| 239 | + if not item.name.startswith("__"): |
| 240 | + print(f" {item.name}") |
| 241 | + |
| 242 | + return 0 |
| 243 | + |
| 244 | + |
| 245 | +if __name__ == "__main__": |
| 246 | + sys.exit(main()) |
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