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'use strict' const BB = require('bluebird') const chain = require('slide').chain const detectIndent = require('detect-indent') const readFile = BB.promisify(require('graceful-fs').readFile) const getRequested = require('./install/get-requested.js') const id = require('./install/deps.js') const iferr = require('iferr') const isOnlyOptional = require('./install/is-only-optional.js') const isOnlyDev = require('./install/is-only-dev.js') const lifecycle = require('./utils/lifecycle.js') const log = require('npmlog') const moduleName = require('./utils/module-name.js') const move = require('move-concurrently') const npm = require('./npm.js') const path = require('path') const readPackageTree = BB.promisify(require('read-package-tree')) const ssri = require('ssri') const validate = require('aproba') const writeFileAtomic = require('write-file-atomic') const unixFormatPath = require('./utils/unix-format-path.js') const isRegistry = require('./utils/is-registry.js') const PKGLOCK = 'package-lock.json' const SHRINKWRAP = 'npm-shrinkwrap.json' const PKGLOCK_VERSION = npm.lockfileVersion // emit JSON describing versions of all packages currently installed (for later // use with shrinkwrap install) shrinkwrap.usage = 'npm shrinkwrap' module.exports = exports = shrinkwrap function shrinkwrap (args, silent, cb) { if (typeof cb !== 'function') { cb = silent silent = false } if (args.length) { log.warn('shrinkwrap', "doesn't take positional args") } move( path.resolve(npm.prefix, PKGLOCK), path.resolve(npm.prefix, SHRINKWRAP), { Promise: BB } ).then(() => { log.notice('', `${PKGLOCK} has been renamed to ${SHRINKWRAP}. ${SHRINKWRAP} will be used for future installations.`) return readFile(path.resolve(npm.prefix, SHRINKWRAP)).then((d) => { return JSON.parse(d) }) }, (err) => { if (err.code !== 'ENOENT') { throw err } else { return readPackageTree(npm.localPrefix).then( id.computeMetadata ).then((tree) => { return BB.fromNode((cb) => { createShrinkwrap(tree, { silent, defaultFile: SHRINKWRAP }, cb) }) }) } }).then((data) => cb(null, data), cb) } module.exports.createShrinkwrap = createShrinkwrap function createShrinkwrap (tree, opts, cb) { opts = opts || {} lifecycle(tree.package, 'preshrinkwrap', tree.path, function () { const pkginfo = treeToShrinkwrap(tree) chain([ [lifecycle, tree.package, 'shrinkwrap', tree.path], [shrinkwrap_, tree.path, pkginfo, opts], [lifecycle, tree.package, 'postshrinkwrap', tree.path] ], iferr(cb, function (data) { cb(null, pkginfo) })) }) } function treeToShrinkwrap (tree) { validate('O', arguments) var pkginfo = {} if (tree.package.name) pkginfo.name = tree.package.name if (tree.package.version) pkginfo.version = tree.package.version if (tree.children.length) { pkginfo.requires = true shrinkwrapDeps(pkginfo.dependencies = {}, tree, tree) } return pkginfo } function shrinkwrapDeps (deps, top, tree, seen) { validate('OOO', [deps, top, tree]) if (!seen) seen = new Set() if (seen.has(tree)) return seen.add(tree) sortModules(tree.children).forEach(function (child) { if (child.fakeChild) { deps[moduleName(child)] = child.fakeChild return } var childIsOnlyDev = isOnlyDev(child) var pkginfo = deps[moduleName(child)] = {} var requested = child.package._requested || getRequested(child) || {} pkginfo.version = childVersion(top, child, requested) if (child.fromBundle || child.isInLink) { pkginfo.bundled = true } else { if (isRegistry(requested)) { pkginfo.resolved = child.package._resolved } // no integrity for git deps as integirty hashes are based on the // tarball and we can't (yet) create consistent tarballs from a stable // source. if (requested.type !== 'git') { pkginfo.integrity = child.package._integrity if (!pkginfo.integrity && child.package._shasum) { pkginfo.integrity = ssri.fromHex(child.package._shasum, 'sha1') } } } if (childIsOnlyDev) pkginfo.dev = true if (isOnlyOptional(child)) pkginfo.optional = true if (child.requires.length) { pkginfo.requires = {} sortModules(child.requires).forEach((required) => { var requested = required.package._requested || getRequested(required) || {} pkginfo.requires[moduleName(required)] = childVersion(top, required, requested) }) } if (child.children.length) { pkginfo.dependencies = {} shrinkwrapDeps(pkginfo.dependencies, top, child, seen) } }) } function sortModules (modules) { // sort modules with the locale-agnostic Unicode sort var sortedModuleNames = modules.map(moduleName).sort() return modules.sort((a, b) => ( sortedModuleNames.indexOf(moduleName(a)) - sortedModuleNames.indexOf(moduleName(b)) )) } function childVersion (top, child, req) { if (req.type === 'directory' || req.type === 'file') { return 'file:' + unixFormatPath(path.relative(top.path, child.package._resolved || req.fetchSpec)) } else if (!isRegistry(req) && !child.fromBundle) { return child.package._resolved || req.saveSpec || req.rawSpec } else { return child.package.version } } function shrinkwrap_ (dir, pkginfo, opts, cb) { save(dir, pkginfo, opts, cb) } function save (dir, pkginfo, opts, cb) { // copy the keys over in a well defined order // because javascript objects serialize arbitrarily BB.join( checkPackageFile(dir, SHRINKWRAP), checkPackageFile(dir, PKGLOCK), checkPackageFile(dir, 'package.json'), (shrinkwrap, lockfile, pkg) => { const info = ( shrinkwrap || lockfile || { path: path.resolve(dir, opts.defaultFile || PKGLOCK), data: '{}', indent: (pkg && pkg.indent) || 2 } ) const updated = updateLockfileMetadata(pkginfo, pkg && pkg.data) const swdata = JSON.stringify(updated, null, info.indent) + '\n' if (swdata === info.raw) { // skip writing if file is identical log.verbose('shrinkwrap', `skipping write for ${path.basename(info.path)} because there were no changes.`) cb(null, pkginfo) } else { writeFileAtomic(info.path, swdata, (err) => { if (err) return cb(err) if (opts.silent) return cb(null, pkginfo) if (!shrinkwrap && !lockfile) { log.notice('', `created a lockfile as ${path.basename(info.path)}. You should commit this file.`) } cb(null, pkginfo) }) } } ).then((file) => { }, cb) } function updateLockfileMetadata (pkginfo, pkgJson) { // This is a lot of work just to make sure the extra metadata fields are // between version and dependencies fields, without affecting any other stuff const newPkg = {} let metainfoWritten = false const metainfo = new Set([ 'lockfileVersion', 'preserveSymlinks' ]) Object.keys(pkginfo).forEach((k) => { if (k === 'dependencies') { writeMetainfo(newPkg) } if (!metainfo.has(k)) { newPkg[k] = pkginfo[k] } if (k === 'version') { writeMetainfo(newPkg) } }) if (!metainfoWritten) { writeMetainfo(newPkg) } function writeMetainfo (pkginfo) { pkginfo.lockfileVersion = PKGLOCK_VERSION if (process.env.NODE_PRESERVE_SYMLINKS) { pkginfo.preserveSymlinks = process.env.NODE_PRESERVE_SYMLINKS } metainfoWritten = true } return newPkg } function checkPackageFile (dir, name) { const file = path.resolve(dir, name) return readFile( file, 'utf8' ).then((data) => { return { path: file, raw: data, data: JSON.parse(data), indent: detectIndent(data).indent || 2 } }).catch({code: 'ENOENT'}, () => {}) }
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