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options.js
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const nopt = require('nopt') const path = require('path') const has = (o, k) => Object.prototype.hasOwnProperty.call(o, k) const cleanPath = (val) => { const k = Symbol('key') const data = {} nopt.typeDefs.path.validate(data, k, val) return data[k] } const parse = (...noptArgs) => { const binOnlyOpts = { command: String, loglevel: String, colors: Boolean, timing: ['always', Boolean], logfile: String, } const arbOpts = { add: Array, rm: Array, omit: Array, update: Array, workspaces: Array, global: Boolean, force: Boolean, 'global-style': Boolean, 'prefer-dedupe': Boolean, 'legacy-peer-deps': Boolean, 'update-all': Boolean, before: Date, path: path, cache: path, ...binOnlyOpts, } const short = { quiet: ['--loglevel', 'warn'], logs: ['--logfile', 'true'], w: '--workspaces', g: '--global', f: '--force', } const defaults = { // key order is important for command and path // since they shift positional args // command is 1st, path is 2nd command: (o) => o.argv.remain.shift(), path: (o) => cleanPath(o.argv.remain.shift() || '.'), colors: has(process.env, 'NO_COLOR') ? false : !!process.stderr.isTTY, loglevel: 'silly', timing: (o) => o.loglevel === 'silly', cache: `${process.env.HOME}/.npm/_cacache`, } const derived = [ // making update either `all` or an array of names but not both ({ updateAll: all, update: names, ...o }) => { if (all || names) { o.update = all != null ? { all } : { names } } return o }, ({ logfile, ...o }) => { // logfile is parsed as a string so if its true or set but empty // then set the default logfile if (logfile === 'true' || logfile === '') { logfile = `arb-log-${new Date().toISOString().replace(/[.:]/g, '_')}.log` } // then parse it the same as nopt parses other paths if (logfile) { o.logfile = cleanPath(logfile) } return o }, ] const transforms = [ // Camelcase all top level keys (o) => { const entries = Object.entries(o).map(([k, v]) => [ k.replace(/-./g, s => s[1].toUpperCase()), v, ]) return Object.fromEntries(entries) }, // Set defaults on unset keys (o) => { for (const [k, v] of Object.entries(defaults)) { if (!has(o, k)) { o[k] = typeof v === 'function' ? v(o) : v } } return o }, // Set/unset derived values ...derived.map((derive) => (o) => derive(o) || o), // Separate bin and arborist options ({ argv: { remain: _ }, ...o }) => { const bin = { _ } for (const k of Object.keys(binOnlyOpts)) { if (has(o, k)) { bin[k] = o[k] delete o[k] } } return { bin, arb: o } }, ] let options = nopt(arbOpts, short, ...noptArgs) for (const t of transforms) { options = t(options) } return options } module.exports = parse()