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72 lines
1.9 KiB
72 lines
1.9 KiB
'use strict'
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const duck = require('protoduck')
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const Fetcher = duck.define(['spec', 'opts', 'manifest'], {
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manifest: ['spec', 'opts'],
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tarball: ['spec', 'opts'],
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fromManifest: ['manifest', 'spec', 'opts'],
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clearMemoized () {}
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}, {name: 'Fetcher'})
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module.exports = Fetcher
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module.exports.manifest = manifest
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function manifest (spec, opts) {
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const fetcher = getFetcher(spec.type)
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return fetcher.manifest(spec, opts)
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}
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module.exports.tarball = tarball
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function tarball (spec, opts) {
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return getFetcher(spec.type).tarball(spec, opts)
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}
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module.exports.fromManifest = fromManifest
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function fromManifest (manifest, spec, opts) {
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return getFetcher(spec.type).fromManifest(manifest, spec, opts)
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}
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const fetchers = {}
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module.exports.clearMemoized = clearMemoized
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function clearMemoized () {
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Object.keys(fetchers).forEach(k => {
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fetchers[k].clearMemoized()
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})
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}
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function getFetcher (type) {
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if (!fetchers[type]) {
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// This is spelled out both to prevent sketchy stuff and to make life
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// easier for bundlers/preprocessors.
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switch (type) {
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case 'directory':
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fetchers[type] = require('./fetchers/directory')
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break
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case 'file':
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fetchers[type] = require('./fetchers/file')
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break
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case 'git':
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fetchers[type] = require('./fetchers/git')
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break
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case 'hosted':
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fetchers[type] = require('./fetchers/hosted')
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break
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case 'range':
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fetchers[type] = require('./fetchers/range')
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break
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case 'remote':
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fetchers[type] = require('./fetchers/remote')
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break
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case 'tag':
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fetchers[type] = require('./fetchers/tag')
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break
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case 'version':
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fetchers[type] = require('./fetchers/version')
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break
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default:
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throw new Error(`Invalid dependency type requested: ${type}`)
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}
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}
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return fetchers[type]
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}
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