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1f38086088
Use the retry package to support all the different retry strategy configurations that can be used with npm: fetch-retries fetch-retry-factor fetch-retry-mintimeout fetch-retry-maxtimeout More info about the configs: https://docs.npmjs.com/misc/config#fetch-retries close #317, PR #327
89 lines
2.2 KiB
JavaScript
89 lines
2.2 KiB
JavaScript
'use strict'
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const url = require('url')
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const enc = global.encodeURIComponent
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const pkgFullName = require('../pkg_full_name')
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const registryUrl = require('registry-url')
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const semver = require('semver')
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/**
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* Resolves a package in the NPM registry. Done as part of `install()`.
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*
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* var npa = require('npm-package-arg')
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* resolve(npa('rimraf@2'))
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* .then((res) => {
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* res.fullname == 'rimraf@2.5.1'
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* res.dist == {
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* shasum: '0a1b2c...'
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* tarball: 'http://...'
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* }
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* })
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*/
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module.exports = function resolveNpm (pkg, opts) {
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// { raw: 'rimraf@2', scope: null, name: 'rimraf', rawSpec: '2' || '' }
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return Promise.resolve()
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.then(_ => toUri(pkg))
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.then(url => {
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if (opts.log) opts.log('resolving')
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return opts.got.get(url)
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})
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.then(res => JSON.parse(res.body))
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.then(res => pickVersionFromRegistryDocument(res, pkg))
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.then(res => ({
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name: res.name,
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fullname: pkgFullName(res),
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version: res.version, // used for displaying
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dist: res.dist
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}))
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.catch(err => errify(err, pkg))
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}
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function errify (err, pkg) {
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if (err.statusCode === 404) {
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throw new Error("Module '" + pkg.raw + "' not found")
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}
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throw err
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}
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function pickVersionFromRegistryDocument (pkg, dep) {
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const versions = Object.keys(pkg.versions)
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if (dep.type === 'tag') {
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const tagVersion = pkg['dist-tags'][dep.spec]
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if (pkg.versions[tagVersion]) {
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return pkg.versions[tagVersion]
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}
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} else {
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const maxVersion = semver.maxSatisfying(versions, dep.spec)
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if (maxVersion) {
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return pkg.versions[maxVersion]
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}
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}
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const message = versions.length
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? 'Versions in registry:\n' + versions.join(', ') + '\n'
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: 'No valid version found.'
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const er = new Error('No compatible version found: ' +
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dep.raw + '\n' + message)
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throw er
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}
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/**
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* Converts package data (from `npa()`) to a URI
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*
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* toUri({ name: 'rimraf', rawSpec: '2' })
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* // => 'https://registry.npmjs.org/rimraf/2'
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*/
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function toUri (pkg) {
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let name
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if (pkg.name.substr(0, 1) === '@') {
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name = '@' + enc(pkg.name.substr(1))
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} else {
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name = enc(pkg.name)
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}
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return url.resolve(registryUrl(pkg.scope), name)
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}
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