Duffer Derek

{"version":3,"sources":["../../src/build/load-jsconfig.ts"],"sourcesContent":["import path from 'path'\nimport fs from 'fs'\nimport type { NextConfigComplete } from '../server/config-shared'\nimport * as Log from './output/log'\nimport { getTypeScriptConfiguration } from '../lib/typescript/getTypeScriptConfiguration'\nimport { readFileSync } from 'fs'\nimport isError from '../lib/is-error'\nimport { hasNecessaryDependencies } from '../lib/has-necessary-dependencies'\nimport { codeFrameColumns } from '../shared/lib/errors/code-frame'\n\nlet TSCONFIG_WARNED = false\n\nexport function parseJsonFile(filePath: string) {\n  const JSON5 =\n    require('next/dist/compiled/json5') as typeof import('next/dist/compiled/json5')\n  const contents = readFileSync(filePath, 'utf8')\n\n  // Special case an empty file\n  if (contents.trim() === '') {\n    return {}\n  }\n\n  try {\n    return JSON5.parse(contents)\n  } catch (err) {\n    if (!isError(err)) throw err\n    const codeFrame = codeFrameColumns(\n      String(contents),\n      {\n        start: {\n          line: (err as Error & { lineNumber?: number }).lineNumber || 1,\n          column:\n            (err as Error & { columnNumber?: number }).columnNumber ||\n            undefined,\n        },\n      },\n      { message: err.message, color: true }\n    )\n    throw new Error(\n      `Failed to parse \"${filePath}\":\\n${codeFrame ?? err.message}`\n    )\n  }\n}\n\nexport type ResolvedBaseUrl =\n  | { baseUrl: string; isImplicit: boolean }\n  | undefined\n\nexport type JsConfig = { compilerOptions: Record<string, any> } | undefined\n\nexport default async function loadJsConfig(\n  dir: string,\n  config: NextConfigComplete\n): Promise<{\n  useTypeScript: boolean\n  jsConfig: JsConfig\n  jsConfigPath?: string\n  resolvedBaseUrl: ResolvedBaseUrl\n}> {\n  let typeScriptPath: string | undefined\n  try {\n    const deps = hasNecessaryDependencies(dir, [\n      {\n        pkg: 'typescript',\n        file: 'typescript/lib/typescript.js',\n        exportsRestrict: true,\n      },\n    ])\n    typeScriptPath = deps.resolved.get('typescript')\n  } catch {}\n  const tsConfigFileName = config.typescript.tsconfigPath || 'tsconfig.json'\n  const tsConfigPath = path.join(dir, tsConfigFileName)\n  const useTypeScript = Boolean(typeScriptPath && fs.existsSync(tsConfigPath))\n\n  let implicitBaseurl\n  let jsConfig: { compilerOptions: Record<string, any> } | undefined\n  // jsconfig is a subset of tsconfig\n  if (useTypeScript) {\n    if (tsConfigFileName !== 'tsconfig.json' && TSCONFIG_WARNED === false) {\n      TSCONFIG_WARNED = true\n      Log.info(`Using tsconfig file: ${tsConfigFileName}`)\n    }\n\n    const ts = (await Promise.resolve(\n      require(typeScriptPath!)\n    )) as typeof import('typescript')\n    const tsConfig = await getTypeScriptConfiguration(ts, tsConfigPath, true)\n    jsConfig = { compilerOptions: tsConfig.options }\n    implicitBaseurl = path.dirname(tsConfigPath)\n  }\n\n  const jsConfigPath = path.join(dir, 'jsconfig.json')\n  if (!useTypeScript && fs.existsSync(jsConfigPath)) {\n    jsConfig = parseJsonFile(jsConfigPath)\n    implicitBaseurl = path.dirname(jsConfigPath)\n  }\n\n  let resolvedBaseUrl: ResolvedBaseUrl\n  if (jsConfig?.compilerOptions?.baseUrl) {\n    resolvedBaseUrl = {\n      baseUrl: path.resolve(dir, jsConfig.compilerOptions.baseUrl),\n      isImplicit: false,\n    }\n  } else {\n    if (implicitBaseurl) {\n      resolvedBaseUrl = {\n        baseUrl: implicitBaseurl,\n        isImplicit: true,\n      }\n    }\n  }\n\n  return {\n    useTypeScript,\n    jsConfig,\n    resolvedBaseUrl,\n    jsConfigPath: useTypeScript\n      ? 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