const path = require('path') const github = require('github-from-package') const home = require('os').homedir const crypto = require('crypto') const expandTemplate = require('expand-template')() function getDownloadUrl (opts) { const pkgName = opts.pkg.name.replace(/^@[a-zA-Z0-9_\-.~]+\//, '') return expandTemplate(urlTemplate(opts), { name: pkgName, package_name: pkgName, version: opts.pkg.version, major: opts.pkg.version.split('.')[0], minor: opts.pkg.version.split('.')[1], patch: opts.pkg.version.split('.')[2], prerelease: opts.pkg.version.split('-')[1], build: opts.pkg.version.split('+')[1], abi: opts.abi || process.versions.modules, node_abi: process.versions.modules, runtime: opts.runtime || 'node', platform: opts.platform, arch: opts.arch, libc: opts.libc || '', configuration: (opts.debug ? 'Debug' : 'Release'), module_name: opts.pkg.binary && opts.pkg.binary.module_name, tag_prefix: opts['tag-prefix'] }) } function getApiUrl (opts) { return github(opts.pkg).replace('github.com', 'api.github.com/repos') + '/releases' } function getAssetUrl (opts, assetId) { return getApiUrl(opts) + '/assets/' + assetId } function urlTemplate (opts) { if (typeof opts.download === 'string') { return opts.download } const packageName = '{name}-v{version}-{runtime}-v{abi}-{platform}{libc}-{arch}.tar.gz' const hostMirrorUrl = getHostMirrorUrl(opts) if (hostMirrorUrl) { return hostMirrorUrl + '/{tag_prefix}{version}/' + packageName } if (opts.pkg.binary && opts.pkg.binary.host) { return [ opts.pkg.binary.host, opts.pkg.binary.remote_path, opts.pkg.binary.package_name || packageName ].map(function (path) { return trimSlashes(path) }).filter(Boolean).join('/') } return github(opts.pkg) + '/releases/download/{tag_prefix}{version}/' + packageName } function getEnvPrefix (pkgName) { return 'npm_config_' + (pkgName || '').replace(/[^a-zA-Z0-9]/g, '_').replace(/^_/, '') } function getHostMirrorUrl (opts) { const propName = getEnvPrefix(opts.pkg.name) + '_binary_host' return process.env[propName] || process.env[propName + '_mirror'] } function trimSlashes (str) { if (str) return str.replace(/^\.\/|^\/|\/$/g, '') } function cachedPrebuild (url) { const digest = crypto.createHash('md5').update(url).digest('hex').slice(0, 6) return path.join(prebuildCache(), digest + '-' + path.basename(url).replace(/[^a-zA-Z0-9.]+/g, '-')) } function npmCache () { const env = process.env return env.npm_config_cache || (env.APPDATA ? path.join(env.APPDATA, 'npm-cache') : path.join(home(), '.npm')) } function prebuildCache () { return path.join(npmCache(), '_prebuilds') } function tempFile (cached) { return cached + '.' + process.pid + '-' + Math.random().toString(16).slice(2) + '.tmp' } function packageOrigin (env, pkg) { // npm <= 6: metadata is stored on disk in node_modules if (pkg._from) { return pkg._from } // npm 7: metadata is exposed to environment by arborist if (env.npm_package_from) { // NOTE: seems undefined atm (npm 7.0.2) return env.npm_package_from } if (env.npm_package_resolved) { // NOTE: not sure about the difference with _from, but it's all we have return env.npm_package_resolved } } function localPrebuild (url, opts) { const propName = getEnvPrefix(opts.pkg.name) + '_local_prebuilds' const prefix = process.env[propName] || opts['local-prebuilds'] || 'prebuilds' return path.join(prefix, path.basename(url)) } const noopLogger = { http: function () {}, silly: function () {}, debug: function () {}, info: function () {}, warn: function () {}, error: function () {}, critical: function () {}, alert: function () {}, emergency: function () {}, notice: function () {}, verbose: function () {}, fatal: function () {} } exports.getDownloadUrl = getDownloadUrl exports.getApiUrl = getApiUrl exports.getAssetUrl = getAssetUrl exports.urlTemplate = urlTemplate exports.cachedPrebuild = cachedPrebuild exports.localPrebuild = localPrebuild exports.prebuildCache = prebuildCache exports.npmCache = npmCache exports.tempFile = tempFile exports.packageOrigin = packageOrigin exports.noopLogger = noopLogger