TypeScript path.format函数代码示例

async function processFile(filePath) {
  if (!fs.existsSync(filePath)) {
    return
  }
  const dirname = path.dirname(filePath)
  const distDirname = dirname.replace(sourceDir, tempDir)
  let distPath = path.format({dir: distDirname, base: path.basename(filePath)})
  const code = fs.readFileSync(filePath, 'utf-8')
  if (REG_STYLE.test(filePath)) {
    // do something
  } else if (REG_SCRIPTS.test(filePath)) {
    if (REG_TYPESCRIPT.test(filePath)) {
      distPath = distPath.replace(/\.(tsx|ts)(\?.*)?$/, '.js')
    }
    Util.printLog(processTypeEnum.COMPILE, _.camelCase(path.extname(filePath)).toUpperCase(), filePath)
    // transformJSCode
    const transformResult = transformJSCode({code, filePath, isEntryFile: isEntryFile(filePath), projectConfig})
    const jsCode = transformResult.code
    fs.ensureDirSync(distDirname)
    fs.writeFileSync(distPath, Buffer.from(jsCode))
    // compileDepStyles
    const styleFiles = transformResult.styleFiles
    depTree[filePath] = styleFiles
    await compileDepStyles(filePath, styleFiles)
  } else {
    fs.ensureDirSync(distDirname)
    fs.copySync(filePath, distPath)
    Util.printLog(processTypeEnum.COPY, _.camelCase(path.extname(filePath)).toUpperCase(), filePath)
  }
}

export function rename(p: string, options: {dir?: string, ext?: string}): string {
  let {dir, name, ext} = path.parse(p)
  if (options.dir != null)
    dir = options.dir
  if (options.ext != null)
    ext = options.ext
  return path.format({dir, name, ext})
}

 /**
  * 返回通过新的扩展名与 request.dest的目标绝对路径生成新的 dest目标绝对路径 和 destRelative目标相对路径
  *
  * @param {string} ext
  * @returns
  * @memberof WxSFM
  */
 getDester (ext: string) {
   let ppath = path.parse(this.request.dest)
   ppath.base = ppath.name + ext
   ppath.ext = ext
   let dest = path.format(ppath)
   let destRelative = path.relative(config.cwd, dest)
   return {
     dest,
     destRelative
   }
 }

function copyFileToDist (filePath: string, sourceDir: string, outputDir: string) {
  if (!filePath && !path.isAbsolute(filePath)) {
    return
  }
  const { appPath } = buildData
  const dirname = path.dirname(filePath)
  const distDirname = dirname.replace(sourceDir, outputDir)
  const relativePath = path.relative(appPath, filePath)
  printLog(processTypeEnum.COPY, '发现文件', relativePath)
  fs.ensureDirSync(distDirname)
  fs.copyFileSync(filePath, path.format({
    dir: distDirname,
    base: path.basename(filePath)
  }))
}

async function processFile ({ filePath, tempPath, entryBaseName }) {
  const indexJsStr = `
  import {AppRegistry} from 'react-native';
  import App from '../${entryBaseName}';
  // import {name as appName} from '../app.json';

  AppRegistry.registerComponent('${moduleName}', () => App);`

  if (!fs.existsSync(filePath)) {
    return
  }
  const dirname = path.dirname(filePath)
  const destDirname = dirname.replace(tempPath, jdreactPath)
  const destFilePath = path.format({dir: destDirname, base: path.basename(filePath)})
  const indexFilePath = path.join(tempPath, 'index.js')
  const tempPkgPath = path.join(tempPath, 'package.json')

  // generate jsbundles/moduleName.js
  if (filePath === indexFilePath) {
    const indexDistDirPath = path.join(jdreactPath, 'jsbundles')
    const indexDistFilePath = path.join(indexDistDirPath, `${moduleName}.js`)
    fs.ensureDirSync(indexDistDirPath)
    fs.writeFileSync(indexDistFilePath, indexJsStr)
    Util.printLog(processTypeEnum.GENERATE, `${moduleName}.js`, indexDistFilePath)
    return
  }

  // genetate package.json
  if (filePath === tempPkgPath) {
    const destPkgPath = path.join(jdreactPath, 'package.json')
    const templatePkgPath = path.join(jdreactTmpDirname, 'pkg')
    const tempPkgObject = fs.readJsonSync(tempPkgPath)
    const templatePkgObject = fs.readJsonSync(templatePkgPath)
    templatePkgObject.name = `jdreact-jsbundle-${moduleName}`
    templatePkgObject.dependencies = Object.assign({}, tempPkgObject.dependencies, templatePkgObject.dependencies)
    fs.writeJsonSync(destPkgPath, templatePkgObject, {spaces: 2})
    Util.printLog(processTypeEnum.GENERATE, 'package.json', destPkgPath)
    return
  }

  fs.ensureDirSync(destDirname)
  fs.copySync(filePath, destFilePath)
  Util.printLog(processTypeEnum.COPY, _.camelCase(path.extname(filePath)).toUpperCase(), filePath)
}

async function buildForWeapp () {
  const { appPath, entryFilePath, outputDirName, entryFileName, sourceDir } = buildData
  console.log()
  console.log(chalk.green('开始编译小程序端组件库！'))
  if (!fs.existsSync(entryFilePath)) {
    console.log(chalk.red('入口文件不存在，请检查！'))
    return
  }
  try {
    const outputDir = path.join(appPath, outputDirName, weappOutputName)
    const outputEntryFilePath = path.join(outputDir, entryFileName)
    const code = fs.readFileSync(entryFilePath).toString()
    const transformResult = wxTransformer({
      code,
      sourcePath: entryFilePath,
      outputPath: outputEntryFilePath,
      isNormal: true,
      isTyped: REG_TYPESCRIPT.test(entryFilePath)
    })
    const { styleFiles, components } = parseEntryAst(transformResult.ast, entryFilePath)
    if (styleFiles.length) {
      const outputStylePath = path.join(outputDir, 'css', 'index.css')
      await compileDepStyles(outputStylePath, styleFiles)
    }
    const relativePath = path.relative(appPath, entryFilePath)
    printLog(processTypeEnum.COPY, '发现文件', relativePath)
    fs.ensureDirSync(path.dirname(outputEntryFilePath))
    fs.copyFileSync(entryFilePath, path.format({
      dir: path.dirname(outputEntryFilePath),
      base: path.basename(outputEntryFilePath)
    }))
    if (components.length) {
      components.forEach(item => {
        copyFileToDist(item.path as string, sourceDir, outputDir)
      })
      analyzeFiles(components.map(item => item.path as string), sourceDir, outputDir)
    }
  } catch (err) {
    console.log(err)
  }
}

    //    }

    path.parse('C:\\path\\dir\\index.html')
    // returns
    //    {
    //        root : "C:\",
    //        dir : "C:\path\dir",
    //        base : "index.html",
    //        ext : ".html",
    //        name : "index"
    //    }

    path.format({
        root: "/",
        dir: "/home/user/dir",
        base: "file.txt",
        ext: ".txt",
        name: "file"
    });
    // returns
    //    '/home/user/dir/file.txt'
}

////////////////////////////////////////////////////
/// readline tests : https://nodejs.org/api/readline.html
////////////////////////////////////////////////////

namespace readline_tests {
    let rl: readline.ReadLine;

    {