codekingpro/portable-devtools

1// take a path and a resolved value, and turn it into a resolution from
2// the given new path.  This is used with converting a package.json's
3// relative file: path into one suitable for a lockfile, or between
4// lockfiles, and for converting hosted git repos to a consistent url type.
5const npa = require('npm-package-arg')
6const relpath = require('./relpath.js')
7const consistentResolve = (resolved, fromPath, toPath, relPaths = false) => {
8  if (!resolved) {
9    return null
10  }
11
12  try {
13    const hostedOpt = { noCommittish: false }
14    const {
15      fetchSpec,
16      saveSpec,
17      type,
18      hosted,
19      rawSpec,
20      raw,
21    } = npa(resolved, fromPath)
22    if (type === 'file' || type === 'directory') {
23      if (relPaths && toPath) {
24        return `file:${relpath(toPath, fetchSpec)}`
25      }
26      return `file:${fetchSpec}`
27    }
28    if (hosted) {
29      return `git+${hosted.auth ? hosted.https(hostedOpt) : hosted.sshurl(hostedOpt)}`
30    }
31    if (type === 'git') {
32      return saveSpec
33    }
34    if (rawSpec === '*') {
35      return raw
36    }
37    return rawSpec
38  } catch (_) {
39    // whatever we passed in was not acceptable to npa.
40    // leave it 100% untouched.
41    return resolved
42  }
43}
44module.exports = consistentResolve
45