system_assignation/node_modules/tar/lib/strip-absolute-path.js

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2022-03-24 09:22:39 -04:00
// unix absolute paths are also absolute on win32, so we use this for both
const { isAbsolute, parse } = require('path').win32
// returns [root, stripped]
// Note that windows will think that //x/y/z/a has a "root" of //x/y, and in
// those cases, we want to sanitize it to x/y/z/a, not z/a, so we strip /
// explicitly if it's the first character.
// drive-specific relative paths on Windows get their root stripped off even
// though they are not absolute, so `c:../foo` becomes ['c:', '../foo']
module.exports = path => {
let r = ''
let parsed = parse(path)
while (isAbsolute(path) || parsed.root) {
// windows will think that //x/y/z has a "root" of //x/y/
// but strip the //?/C:/ off of //?/C:/path
const root = path.charAt(0) === '/' && path.slice(0, 4) !== '//?/' ? '/'
: parsed.root
path = path.substr(root.length)
r += root
parsed = parse(path)
}
return [r, path]
}