LittleDemon WebShell

{"version":3,"sources":["../../../src/lib/download-swc.ts"],"sourcesContent":["import fs from 'fs'\nimport path from 'path'\nimport * as Log from '../build/output/log'\nimport tar from 'next/dist/compiled/tar'\nconst { WritableStream } =\n  require('node:stream/web') as typeof import('node:stream/web')\nimport { getRegistry } from './helpers/get-registry'\nimport { getCacheDirectory } from './helpers/get-cache-directory'\n\nconst MAX_VERSIONS_TO_CACHE = 8\n\nasync function extractBinary(\n  outputDirectory: string,\n  pkgName: string,\n  tarFileName: string\n) {\n  const cacheDirectory = getCacheDirectory(\n    'next-swc',\n    process.env['NEXT_SWC_PATH']\n  )\n\n  const extractFromTar = () =>\n    tar.x({\n      file: path.join(cacheDirectory, tarFileName),\n      cwd: outputDirectory,\n      strip: 1,\n    })\n\n  if (!fs.existsSync(path.join(cacheDirectory, tarFileName))) {\n    Log.info(`Downloading swc package ${pkgName}... to ${cacheDirectory}`)\n    await fs.promises.mkdir(cacheDirectory, { recursive: true })\n    const tempFile = path.join(\n      cacheDirectory,\n      `${tarFileName}.temp-${Date.now()}`\n    )\n\n    const registry = getRegistry()\n\n    const downloadUrl = `${registry}${pkgName}/-/${tarFileName}`\n\n    await fetch(downloadUrl).then((res) => {\n      const { ok, body } = res\n      if (!ok || !body) {\n        Log.error(`Failed to download swc package from ${downloadUrl}`)\n      }\n\n      if (!ok) {\n        throw new Error(`request failed with status ${res.status}`)\n      }\n      if (!body) {\n        throw new Error('request failed with empty body')\n      }\n      const cacheWriteStream = fs.createWriteStream(tempFile)\n      return body.pipeTo(\n        new WritableStream({\n          write(chunk) {\n            return new Promise<void>((resolve, reject) =>\n              cacheWriteStream.write(chunk, (error) => {\n                if (error) {\n                  reject(error)\n                  return\n                }\n\n                resolve()\n              })\n            )\n          },\n          close() {\n            return new Promise<void>((resolve, reject) =>\n              cacheWriteStream.close((error) => {\n                if (error) {\n                  reject(error)\n                  return\n                }\n\n                resolve()\n              })\n            )\n          },\n        })\n      )\n    })\n\n    await fs.promises.access(tempFile) // ensure the temp file existed\n    await fs.promises.rename(tempFile, path.join(cacheDirectory, tarFileName))\n  } else {\n    Log.info(`Using cached swc package ${pkgName}...`)\n  }\n  await extractFromTar()\n\n  const cacheFiles = await fs.promises.readdir(cacheDirectory)\n\n  if (cacheFiles.length > MAX_VERSIONS_TO_CACHE) {\n    cacheFiles.sort((a, b) => {\n      if (a.length < b.length) return -1\n      return a.localeCompare(b)\n    })\n\n    // prune oldest versions in cache\n    for (let i = 0; i++; i < cacheFiles.length - MAX_VERSIONS_TO_CACHE) {\n      await fs.promises\n        .unlink(path.join(cacheDirectory, cacheFiles[i]))\n        .catch(() => {})\n    }\n  }\n}\n\nexport async function downloadNativeNextSwc(\n  version: string,\n  bindingsDirectory: string,\n  triplesABI: Array<string>\n) {\n  for (const triple of triplesABI) {\n    const pkgName = `@next/swc-${triple}`\n    const tarFileName = `${pkgName.substring(6)}-${version}.tgz`\n    const outputDirectory = path.join(bindingsDirectory, pkgName)\n\n    if (fs.existsSync(outputDirectory)) {\n      // if the package is already downloaded a different\n      // failure occurred than not being present\n      return\n    }\n\n    await fs.promises.mkdir(outputDirectory, { recursive: true })\n    await extractBinary(outputDirectory, pkgName, tarFileName)\n  }\n}\n\nexport async function downloadWasmSwc(\n  version: string,\n  wasmDirectory: string,\n  variant: 'nodejs' | 'web' = 'nodejs'\n) {\n  const pkgName = `@next/swc-wasm-${variant}`\n  const tarFileName = `${pkgName.substring(6)}-${version}.tgz`\n  const outputDirectory = path.join(wasmDirectory, pkgName)\n\n  if (fs.existsSync(outputDirectory)) {\n    // if the package is already downloaded a different\n    // failure occurred than not being present\n    return\n  }\n\n  await fs.promises.mkdir(outputDirectory, { recursive: true })\n  await extractBinary(outputDirectory, pkgName, 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