text: /* eslint node/no-deprecated-api: "off" */
  const semver = require('semver')
  const { basename } = require('path')
  const { parse } = require('url')
  module.exports = (name, tgz) => {
    const base = basename(tgz)
    if (!base.endsWith('.tgz')) {
      return null
    }
  
    const u = parse(tgz)
    if (/^https?:/.test(u.protocol)) {
      // registry url?  check for most likely pattern.
      // either /@foo/bar/-/bar-1.2.3.tgz or
      // /foo/-/foo-1.2.3.tgz, and fall through to
      // basename checking.  Note that registries can
      // be mounted below the root url, so /a/b/-/x/y/foo/-/foo-1.2.3.tgz
      // is a potential option.
      const tfsplit = u.path.slice(1).split('/-/')
      if (tfsplit.length > 1) {
        const afterTF = tfsplit.pop()
        if (afterTF === base) {
          const pre = tfsplit.pop()
          const preSplit = pre.split(/\/|%2f/i)
          const project = preSplit.pop()
          const scope = preSplit.pop()
          return versionFromBaseScopeName(base, scope, project)
        }
      }
    }
  
    const split = name.split(/\/|%2f/i)
    const project = split.pop()
    const scope = split.pop()
    return versionFromBaseScopeName(base, scope, project)
  }
  
  const versionFromBaseScopeName = (base, scope, name) => {
    if (!base.startsWith(name + '-')) {
      return null
    }
  
    const parsed = semver.parse(base.substring(name.length + 1, base.length - 4))
    return parsed ? {
      name: scope && scope.charAt(0) === '@' ? `${scope}/${name}` : name,
      version: parsed.version,
    } : null
  }
  