| DIR: /proc/1991111/root/usr/share/nodejs/libnpmexec/node_modules/common-ancestor-path/ |
| Current File : //proc/1991111/root/usr/share/nodejs/libnpmexec/node_modules/common-ancestor-path/index.js |
const {parse, sep, normalize: norm} = require('path')
function* commonArrayMembers (a, b) {
const [l, s] = a.length > b.length ? [a, b] : [b, a]
for (const x of s) {
if (x === l.shift())
yield x
else
break
}
}
const commonAncestorPath = (a, b) => a === b ? a
: parse(a).root !== parse(b).root ? null
: [...commonArrayMembers(norm(a).split(sep), norm(b).split(sep))].join(sep)
module.exports = (...paths) => paths.reduce(commonAncestorPath)
|