Created
December 7, 2019 08:42
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const bundled = require('npm-bundled') | |
const {resolve, basename, dirname} = require('path') | |
const {promisify} = require('util') | |
const readdirScoped = promisify(require('readdir-scoped-modules')) | |
const fs = require('fs') | |
const stat = promisify(fs.stat) | |
const readdir_ = promisify(fs.readdir) | |
const readdir = async path => | |
(await readdir_(path)).filter(p => p !== 'node_modules') | |
const getPkg = path => { | |
try { | |
return require(path) | |
} catch (er) { | |
return {} | |
} | |
} | |
const getBins = ({path}) => { | |
const dir = dirname(path) | |
const base = basename(path) | |
const scope = basename(dir) | |
const nm = /^@.+/.test(scope) | |
? dirname(dir) : dir | |
const pkg = getPkg(resolve(path, 'package.json')) | |
if (typeof pkg.bin === 'string' && pkg.name) | |
pkg.bin = { [pkg.name]: pkg.bin } | |
if (!pkg.bin || typeof pkg.bin !== 'object') | |
return [] | |
return Promise.all(Object.values(pkg.bin).map(b => resolve(path, b)) | |
.concat(Object.keys(pkg.bin).map(b => [ | |
resolve(nm, '.bin', b), | |
resolve(nm, '.bin', b + '.cmd'), | |
resolve(nm, '.bin', b + '.ps1'), | |
]).flat()).map(b => stat(b).catch((er) => null).then(st => st && b))) | |
.then(bins => bins.filter(b => b)) | |
} | |
const _currentDepth = Symbol('_currentDepth') | |
const pkgContents = ({ | |
path, | |
depth = 1, | |
[_currentDepth]: currentDepth = 0, | |
}) => | |
currentDepth === depth ? Promise.resolve([path]) | |
: Promise.all([ | |
readdir(path).catch(e => null), | |
readdirScoped(resolve(path, 'node_modules')).catch(e => null), | |
currentDepth === 0 ? bundled({path}) : [], | |
currentDepth === 0 ? getBins({path}) : [], | |
]).then(([direct, nm, bundled, bins]) => [ | |
...(direct ? direct.map(d => resolve(path, d)) : [path]), | |
...(nm && nm.length === bundled.length ? [resolve(path, 'node_modules')] | |
: bundled.map(d => resolve(path, 'node_modules', d))), | |
...bins, | |
]).then(list => | |
list.length === 1 && list[0] === path || currentDepth + 1 === depth ? list | |
: Promise.all(list.map(path => module.exports({ | |
depth, | |
path, | |
[_currentDepth]: currentDepth + 1, | |
})))) | |
.then(list => list.flat()) | |
module.exports = options => pkgContents({ | |
...options, | |
path: resolve(options.path), | |
}) | |
if (require.main === module) { | |
const options = { path: '.', depth: Infinity } | |
process.argv.slice(2).forEach(arg => { | |
let match | |
if ((match = arg.match(/^--depth=([0-9]+|Infinity)/)) || | |
(match = arg.match(/^-d([0-9]+|Infinity)/))) | |
options.depth = +match[1] | |
else | |
options.path = arg | |
}) | |
module.exports(options) | |
.then(list => list.forEach(p => console.log(p))) | |
.catch(er => console.error(er)) | |
} |
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