AK-21/Graphite-Industrial-Intelligence

1const path = require('path')2const github = require('github-from-package')3const home = require('os').homedir4const crypto = require('crypto')5const expandTemplate = require('expand-template')()6 7function getDownloadUrl (opts) {8  const pkgName = opts.pkg.name.replace(/^@[a-zA-Z0-9_\-.~]+\//, '')9  return expandTemplate(urlTemplate(opts), {10    name: pkgName,11    package_name: pkgName,12    version: opts.pkg.version,13    major: opts.pkg.version.split('.')[0],14    minor: opts.pkg.version.split('.')[1],15    patch: opts.pkg.version.split('.')[2],16    prerelease: opts.pkg.version.split('-')[1],17    build: opts.pkg.version.split('+')[1],18    abi: opts.abi || process.versions.modules,19    node_abi: process.versions.modules,20    runtime: opts.runtime || 'node',21    platform: opts.platform,22    arch: opts.arch,23    libc: opts.libc || '',24    configuration: (opts.debug ? 'Debug' : 'Release'),25    module_name: opts.pkg.binary && opts.pkg.binary.module_name,26    tag_prefix: opts['tag-prefix']27  })28}29 30function getApiUrl (opts) {31  return github(opts.pkg).replace('github.com', 'api.github.com/repos') + '/releases'32}33 34function getAssetUrl (opts, assetId) {35  return getApiUrl(opts) + '/assets/' + assetId36}37 38function urlTemplate (opts) {39  if (typeof opts.download === 'string') {40    return opts.download41  }42 43  const packageName = '{name}-v{version}-{runtime}-v{abi}-{platform}{libc}-{arch}.tar.gz'44  const hostMirrorUrl = getHostMirrorUrl(opts)45 46  if (hostMirrorUrl) {47    return hostMirrorUrl + '/{tag_prefix}{version}/' + packageName48  }49 50  if (opts.pkg.binary && opts.pkg.binary.host) {51    return [52      opts.pkg.binary.host,53      opts.pkg.binary.remote_path,54      opts.pkg.binary.package_name || packageName55    ].map(function (path) {56      return trimSlashes(path)57    }).filter(Boolean).join('/')58  }59 60  return github(opts.pkg) + '/releases/download/{tag_prefix}{version}/' + packageName61}62 63function getEnvPrefix (pkgName) {64  return 'npm_config_' + (pkgName || '').replace(/[^a-zA-Z0-9]/g, '_').replace(/^_/, '')65}66 67function getHostMirrorUrl (opts) {68  const propName = getEnvPrefix(opts.pkg.name) + '_binary_host'69  return process.env[propName] || process.env[propName + '_mirror']70}71 72function trimSlashes (str) {73  if (str) return str.replace(/^\.\/|^\/|\/$/g, '')74}75 76function cachedPrebuild (url) {77  const digest = crypto.createHash('sha512').update(url).digest('hex').slice(0, 6)78  return path.join(prebuildCache(), digest + '-' + path.basename(url).replace(/[^a-zA-Z0-9.]+/g, '-'))79}80 81function npmCache () {82  const env = process.env83  return env.npm_config_cache || (env.APPDATA ? path.join(env.APPDATA, 'npm-cache') : path.join(home(), '.npm'))84}85 86function prebuildCache () {87  return path.join(npmCache(), '_prebuilds')88}89 90function tempFile (cached) {91  return cached + '.' + process.pid + '-' + Math.random().toString(16).slice(2) + '.tmp'92}93 94function packageOrigin (env, pkg) {95  // npm <= 6: metadata is stored on disk in node_modules96  if (pkg._from) {97    return pkg._from98  }99 100  // npm 7: metadata is exposed to environment by arborist101  if (env.npm_package_from) {102    // NOTE: seems undefined atm (npm 7.0.2)103    return env.npm_package_from104  }105 106  if (env.npm_package_resolved) {107    // NOTE: not sure about the difference with _from, but it's all we have108    return env.npm_package_resolved109  }110}111 112function localPrebuild (url, opts) {113  const propName = getEnvPrefix(opts.pkg.name) + '_local_prebuilds'114  const prefix = process.env[propName] || opts['local-prebuilds'] || 'prebuilds'115  return path.join(prefix, path.basename(url))116}117 118const noopLogger = {119  http: function () {},120  silly: function () {},121  debug: function () {},122  info: function () {},123  warn: function () {},124  error: function () {},125  critical: function () {},126  alert: function () {},127  emergency: function () {},128  notice: function () {},129  verbose: function () {},130  fatal: function () {}131}132 133exports.getDownloadUrl = getDownloadUrl134exports.getApiUrl = getApiUrl135exports.getAssetUrl = getAssetUrl136exports.urlTemplate = urlTemplate137exports.cachedPrebuild = cachedPrebuild138exports.localPrebuild = localPrebuild139exports.prebuildCache = prebuildCache140exports.npmCache = npmCache141exports.tempFile = tempFile142exports.packageOrigin = packageOrigin143exports.noopLogger = noopLogger144