Function searchCachePackage

deps/npm/lib/commands/cache.js:14–64

(path, parsed, cacheKeys)

const BaseCommand = require('../base-cmd.js')

const searchCachePackage = async (path, parsed, cacheKeys) => {
  const searchMFH = new RegExp(`^make-fetch-happen:request-cache:.*(?<!/[@a-zA-Z]+)/${parsed.name}/-/(${parsed.name}[^/]+.tgz)$`)
  const searchPack = new RegExp(`^make-fetch-happen:request-cache:.*/${parsed.escapedName}$`)
  const results = new Set()
  cacheKeys = new Set(cacheKeys)
  for (const key of cacheKeys) {
    // match on the public key registry url format
    if (searchMFH.test(key)) {
      // extract the version from the filename
      const filename = key.match(searchMFH)[1]
      const noExt = filename.slice(0, -4)
      const noScope = `${parsed.name.split('/').pop()}-`
      const ver = noExt.slice(noScope.length)
      if (semver.satisfies(ver, parsed.rawSpec)) {
        results.add(key)
      }
      continue
    }
    // is this key a packument?
    if (!searchPack.test(key)) {
      continue
    }

    results.add(key)
    let packument, details
    try {
      details = await cacache.get(path, key)
      packument = jsonParse(details.data)
    } catch {
      // if we couldn't parse the packument, abort
      continue
    }
    if (!packument.versions || typeof packument.versions !== 'object') {
      continue
    }

    // assuming this is a packument
    for (const ver of Object.keys(packument.versions)) {
      if (semver.satisfies(ver, parsed.rawSpec)) {
        if (packument.versions[ver].dist &&
          typeof packument.versions[ver].dist === 'object' &&
          packument.versions[ver].dist.tarball !== undefined &&
          cacheKeys.has(`make-fetch-happen:request-cache:${packument.versions[ver].dist.tarball}`)
        ) {
          results.add(`make-fetch-happen:request-cache:${packument.versions[ver].dist.tarball}`)
        }
      }
    }
  }
  return results
}

class Cache extends BaseCommand {
  static description = 'Manipulates packages and npx cache'