|
| 1 | +#!/usr/bin/env node |
| 2 | +"use strict"; |
| 3 | + |
| 4 | +const childProcess = require("node:child_process"); |
| 5 | +const fs = require("node:fs"); |
| 6 | +const os = require("node:os"); |
| 7 | +const path = require("node:path"); |
| 8 | + |
| 9 | +function packageRoot() { |
| 10 | + return fs.realpathSync(path.resolve(__dirname, "..")); |
| 11 | +} |
| 12 | + |
| 13 | +function readPackage(root) { |
| 14 | + return JSON.parse(fs.readFileSync(path.join(root, "package.json"), "utf8")); |
| 15 | +} |
| 16 | + |
| 17 | +function cacheRoot() { |
| 18 | + if (process.env.WORD_AI_NPM_CACHE) { |
| 19 | + return path.resolve(process.env.WORD_AI_NPM_CACHE); |
| 20 | + } |
| 21 | + if (process.platform === "win32") { |
| 22 | + return path.join(process.env.LOCALAPPDATA || os.homedir(), "word-ai", "npm"); |
| 23 | + } |
| 24 | + return path.join(process.env.XDG_CACHE_HOME || path.join(os.homedir(), ".cache"), "word-ai", "npm"); |
| 25 | +} |
| 26 | + |
| 27 | +function venvPython(venvDir) { |
| 28 | + return process.platform === "win32" |
| 29 | + ? path.join(venvDir, "Scripts", "python.exe") |
| 30 | + : path.join(venvDir, "bin", "python"); |
| 31 | +} |
| 32 | + |
| 33 | +function sleepSync(ms) { |
| 34 | + Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, ms); |
| 35 | +} |
| 36 | + |
| 37 | +function acquireLock(lockDir) { |
| 38 | + const start = Date.now(); |
| 39 | + while (true) { |
| 40 | + try { |
| 41 | + fs.mkdirSync(lockDir, {recursive: false}); |
| 42 | + fs.writeFileSync(path.join(lockDir, "pid"), `${process.pid}\n`, "utf8"); |
| 43 | + return; |
| 44 | + } catch (error) { |
| 45 | + if (error && error.code !== "EEXIST") { |
| 46 | + throw error; |
| 47 | + } |
| 48 | + try { |
| 49 | + const stat = fs.statSync(lockDir); |
| 50 | + if (Date.now() - stat.mtimeMs > 10 * 60 * 1000) { |
| 51 | + fs.rmSync(lockDir, {recursive: true, force: true}); |
| 52 | + continue; |
| 53 | + } |
| 54 | + } catch (_) { |
| 55 | + continue; |
| 56 | + } |
| 57 | + if (Date.now() - start > 5 * 60 * 1000) { |
| 58 | + throw new Error(`Timed out waiting for Word AI npm bootstrap lock: ${lockDir}`); |
| 59 | + } |
| 60 | + sleepSync(250); |
| 61 | + } |
| 62 | + } |
| 63 | +} |
| 64 | + |
| 65 | +function releaseLock(lockDir) { |
| 66 | + fs.rmSync(lockDir, {recursive: true, force: true}); |
| 67 | +} |
| 68 | + |
| 69 | +function runChecked(command, args, options = {}) { |
| 70 | + const proc = childProcess.spawnSync(command, args, { |
| 71 | + stdio: options.stdio || "inherit", |
| 72 | + env: options.env || process.env, |
| 73 | + cwd: options.cwd || process.cwd(), |
| 74 | + shell: false |
| 75 | + }); |
| 76 | + if (proc.error) { |
| 77 | + throw proc.error; |
| 78 | + } |
| 79 | + if (proc.status !== 0) { |
| 80 | + throw new Error(`${command} ${args.join(" ")} exited with status ${proc.status}`); |
| 81 | + } |
| 82 | + return proc; |
| 83 | +} |
| 84 | + |
| 85 | +function pythonCandidates() { |
| 86 | + const candidates = []; |
| 87 | + if (process.env.WORD_AI_PYTHON) { |
| 88 | + candidates.push(process.env.WORD_AI_PYTHON); |
| 89 | + } |
| 90 | + candidates.push("python3", "python"); |
| 91 | + return [...new Set(candidates)]; |
| 92 | +} |
| 93 | + |
| 94 | +function pythonVersion(command) { |
| 95 | + const proc = childProcess.spawnSync( |
| 96 | + command, |
| 97 | + ["-c", "import sys; print(f'{sys.version_info.major}.{sys.version_info.minor}.{sys.version_info.micro}')"], |
| 98 | + {encoding: "utf8", stdio: ["ignore", "pipe", "pipe"], shell: false} |
| 99 | + ); |
| 100 | + if (proc.error || proc.status !== 0) { |
| 101 | + return null; |
| 102 | + } |
| 103 | + const text = proc.stdout.trim(); |
| 104 | + const parts = text.split(".").map((part) => Number.parseInt(part, 10)); |
| 105 | + if (parts.length < 2 || Number.isNaN(parts[0]) || Number.isNaN(parts[1])) { |
| 106 | + return null; |
| 107 | + } |
| 108 | + return {text, major: parts[0], minor: parts[1]}; |
| 109 | +} |
| 110 | + |
| 111 | +function findPython() { |
| 112 | + for (const candidate of pythonCandidates()) { |
| 113 | + const version = pythonVersion(candidate); |
| 114 | + if (version && (version.major > 3 || (version.major === 3 && version.minor >= 10))) { |
| 115 | + return candidate; |
| 116 | + } |
| 117 | + } |
| 118 | + throw new Error("Word AI requires Python 3.10 or newer. Set WORD_AI_PYTHON=/path/to/python if needed."); |
| 119 | +} |
| 120 | + |
| 121 | +function ensureVenv(root, version) { |
| 122 | + const venvDir = path.join(cacheRoot(), version, "venv"); |
| 123 | + const lockDir = path.join(cacheRoot(), version, ".bootstrap.lock"); |
| 124 | + const python = venvPython(venvDir); |
| 125 | + const marker = path.join(venvDir, ".word-ai-npm-version"); |
| 126 | + const requirements = path.join(root, "requirements.txt"); |
| 127 | + if ( |
| 128 | + fs.existsSync(python) && |
| 129 | + fs.existsSync(marker) && |
| 130 | + fs.readFileSync(marker, "utf8").trim() === version |
| 131 | + ) { |
| 132 | + return python; |
| 133 | + } |
| 134 | + |
| 135 | + fs.mkdirSync(path.dirname(venvDir), {recursive: true}); |
| 136 | + acquireLock(lockDir); |
| 137 | + try { |
| 138 | + if ( |
| 139 | + fs.existsSync(python) && |
| 140 | + fs.existsSync(marker) && |
| 141 | + fs.readFileSync(marker, "utf8").trim() === version |
| 142 | + ) { |
| 143 | + return python; |
| 144 | + } |
| 145 | + fs.rmSync(venvDir, {recursive: true, force: true}); |
| 146 | + const systemPython = findPython(); |
| 147 | + console.error(`Bootstrapping Word AI Python environment with ${systemPython}...`); |
| 148 | + runChecked(systemPython, ["-m", "venv", venvDir]); |
| 149 | + runChecked(python, ["-m", "pip", "install", "--upgrade", "pip"]); |
| 150 | + runChecked(python, ["-m", "pip", "install", "-r", requirements]); |
| 151 | + fs.writeFileSync(marker, `${version}\n`, "utf8"); |
| 152 | + } finally { |
| 153 | + releaseLock(lockDir); |
| 154 | + } |
| 155 | + return python; |
| 156 | +} |
| 157 | + |
| 158 | +function main(moduleName) { |
| 159 | + const root = packageRoot(); |
| 160 | + const pkg = readPackage(root); |
| 161 | + const python = ensureVenv(root, pkg.version); |
| 162 | + const env = {...process.env}; |
| 163 | + env.PYTHONPATH = root + (env.PYTHONPATH ? path.delimiter + env.PYTHONPATH : ""); |
| 164 | + const child = childProcess.spawn(python, ["-m", moduleName, ...process.argv.slice(2)], { |
| 165 | + stdio: "inherit", |
| 166 | + env |
| 167 | + }); |
| 168 | + child.on("error", (error) => { |
| 169 | + console.error(error.message); |
| 170 | + process.exit(1); |
| 171 | + }); |
| 172 | + child.on("exit", (code, signal) => { |
| 173 | + if (signal) { |
| 174 | + process.kill(process.pid, signal); |
| 175 | + return; |
| 176 | + } |
| 177 | + process.exit(code === null ? 1 : code); |
| 178 | + }); |
| 179 | +} |
| 180 | + |
| 181 | +module.exports = {main}; |
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