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Tim van der Lippe
2a1ede5c26
`manage_node_deps.py` was changed in https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2259834 to add line endings at the end of the package.json file However, `npm run install-deps` was not rerun to add the line endings. To prevent future CLs that add deps to include the line ending changes, fix them in this CL. R=mathias@chromium.org Change-Id: Id4ee0003520c4aa0cb55494cdf64df57e31a86d7 Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2263952 Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org> Commit-Queue: Mathias Bynens <mathias@chromium.org> Auto-Submit: Tim van der Lippe <tvanderlippe@chromium.org> Reviewed-by: Mathias Bynens <mathias@chromium.org>
Yargs
Yargs be a node.js library fer hearties tryin' ter parse optstrings
Description :
Yargs helps you build interactive command line tools, by parsing arguments and generating an elegant user interface.
It gives you:
- commands and (grouped) options (
my-program.js serve --port=5000). - a dynamically generated help menu based on your arguments.
- bash-completion shortcuts for commands and options.
- and tons more.
Installation
Stable version:
npm i yargs
Bleeding edge version with the most recent features:
npm i yargs@next
Usage :
Simple Example
#!/usr/bin/env node
const argv = require('yargs').argv
if (argv.ships > 3 && argv.distance < 53.5) {
console.log('Plunder more riffiwobbles!')
} else {
console.log('Retreat from the xupptumblers!')
}
$ ./plunder.js --ships=4 --distance=22
Plunder more riffiwobbles!
$ ./plunder.js --ships 12 --distance 98.7
Retreat from the xupptumblers!
Complex Example
#!/usr/bin/env node
require('yargs') // eslint-disable-line
.command('serve [port]', 'start the server', (yargs) => {
yargs
.positional('port', {
describe: 'port to bind on',
default: 5000
})
}, (argv) => {
if (argv.verbose) console.info(`start server on :${argv.port}`)
serve(argv.port)
})
.option('verbose', {
alias: 'v',
type: 'boolean',
description: 'Run with verbose logging'
})
.argv
Run the example above with --help to see the help for the application.
TypeScript
yargs has type definitions at @types/yargs.
npm i @types/yargs --save-dev
See usage examples in docs.
Webpack
See usage examples of yargs with webpack in docs.
Community :
Having problems? want to contribute? join our community slack.