e10493abc6
* dev: (85 commits) chore: console.log debug leftovers fix: third level navigation links fix: show subheader on refresh fix: machines/:id routing fix: customer route chore: update wallet nodes feat: shorten long addresses in funding page feat: shorten long addresses refactor: support copied text different from presented text chore: udpate react, downshift and routing refactor: use Wizard component on first route fix: autocomplete component rendering feat: skip2fa option on .env fix: drop contraint before dropping index chore: stop using alias imports fix: re-instate urlResolver chore: server code formatting chore: reformat code chore: adding eslint and prettier config chore: typo ...
72 lines
1.7 KiB
JavaScript
72 lines
1.7 KiB
JavaScript
const trimStart = (s, c) => {
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let idx = 0
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while (idx < s.length && s[idx] === c) idx++
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return idx > 0 ? s.substring(idx) : s
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}
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const optkey = opt => trimStart(opt, '-')
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const parse = (default_options, option_arities) => args => {
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const positional = []
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const parsed_options = {}
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for (let i = 0; i < args.length; ) {
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const arg = args[i]
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i++
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const arity = option_arities[arg]
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if (typeof arity === 'number') {
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if (arity + i > args.length)
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return [`${arg}: not enough arguments.`, parsed_options, positional]
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const opt = optkey(arg)
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switch (arity) {
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case 0:
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parsed_options[opt] = true
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break
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case 1:
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parsed_options[opt] = args[i]
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break
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default:
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parsed_options[opt] = args.slice(i, i + arity)
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break
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}
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i += arity
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} else {
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positional.push(arg)
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}
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}
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const options = Object.assign({}, default_options, parsed_options)
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return [null, options, positional]
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}
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const help =
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({ grammar, usage }) =>
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() => {
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if (usage) console.log(usage)
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grammar.forEach(([optargs, optdesc, def]) => {
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const deftext = def ? ` (default: ${def})` : ''
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console.log(`\t${optargs.join(' ')}\t${optdesc}${deftext}`)
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})
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}
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const CLI = ({ grammar, usage }) => {
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const details = grammar.map(([[opt, ...optargs], , def]) => [
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opt,
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optargs.length,
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def,
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])
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const option_arities = Object.fromEntries(
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details.map(([opt, arity]) => [opt, arity]),
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)
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const default_options = Object.fromEntries(
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details.map(([opt, , def]) => [optkey(opt), def]),
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)
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return {
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parse: parse(default_options, option_arities),
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help: help({ grammar, usage }),
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}
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}
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module.exports = CLI
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