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我设置的指挥官设置defaultargs这样的:指挥官不使用默认值
import * as validations from './validation'
import program from 'commander'
import path from 'path'
export default function initializeCommander (defaults) {
program
.version('0.0.1')
.usage('redbubble-demo')
.option('-u', '--url [url]', validations.isValidUrl, defaults.url)
.option('-o', '--output-dir [path]', validations.hasValidParentDirectory, path.resolve(defaults.path))
.option('-s', '--size [size]', validations.isValidSize, defaults.size)
.parse(process.argv)
return program
}
我在这里设置的默认值,并将其传递到像这样的功能:
const defaultValues = {
url: 'someuRL',
size: 'medium',
outputDir: './www'
}
const program = initializeCommander(defaultValues)
console.log(program) //no value in console
当我尝试并从program
访问选项,我没有得到任何价值。
我使用调用我的应用程序不带任何参数:
babel-node src/index.js
UPDATE:
我能够运行的应用程序的二进制现在用npm link
,但我得到这个错误:
TypeError: Path must be a string. Received undefined
at assertPath (path.js:7:11)
at Object.resolve (path.js:1146:7)
at initializeCommander (/home/vamsi/Do/redbubble-demo/build/index.js:9889:222)
at Object.<anonymous> (/home/vamsi/Do/redbubble-demo/build/index.js:87:34)
at __webpack_require__ (/home/vamsi/Do/redbubble-demo/build/index.js:22:30)
at /home/vamsi/Do/redbubble-demo/build/index.js:42:18
at Object.<anonymous> (/home/vamsi/Do/redbubble-demo/build/index.js:45:10)
at Module._compile (module.js:541:32)
at Object.Module._extensions..js (module.js:550:10)
at Module.load (module.js:458:32)
stack trace
中的行号已关闭,因为我正在使用webpack
对其进行捆绑。
我正在使用webpack,因为我有'import'语句遍布我的代码。另外,我阅读http://jlongster.com/Backend-Apps-with-Webpack--Part-I。它不处理像'--output-dir'这样的冗长参数,但可以正确使用'-o'。我怎样才能处理冗长的参数呢? – vamsiampolu