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39 lines
1.0 KiB
39 lines
1.0 KiB
'use strict'; |
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// classic singleton yargs API, to use yargs |
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// without running as a singleton do: |
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// require('yargs/yargs')(process.argv.slice(2)) |
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const {Yargs, processArgv} = require('./build/index.cjs'); |
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Argv(processArgv.hideBin(process.argv)); |
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module.exports = Argv; |
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function Argv(processArgs, cwd) { |
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const argv = Yargs(processArgs, cwd, require); |
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singletonify(argv); |
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return argv; |
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} |
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/* Hack an instance of Argv with process.argv into Argv |
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so people can do |
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require('yargs')(['--beeble=1','-z','zizzle']).argv |
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to parse a list of args and |
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require('yargs').argv |
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to get a parsed version of process.argv. |
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*/ |
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function singletonify(inst) { |
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Object.keys(inst).forEach(key => { |
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if (key === 'argv') { |
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Argv.__defineGetter__(key, inst.__lookupGetter__(key)); |
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} else if (typeof inst[key] === 'function') { |
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Argv[key] = inst[key].bind(inst); |
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} else { |
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Argv.__defineGetter__('$0', () => { |
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return inst.$0; |
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}); |
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Argv.__defineGetter__('parsed', () => { |
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return inst.parsed; |
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}); |
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} |
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}); |
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}
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