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Filename :
shrinkwrap.js
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const { resolve, basename } = require('node:path') const { unlink } = require('node:fs/promises') const { log } = require('proc-log') const BaseCommand = require('../base-cmd.js') class Shrinkwrap extends BaseCommand { static description = 'Lock down dependency versions for publication' static name = 'shrinkwrap' static ignoreImplicitWorkspace = false async exec () { // if has a npm-shrinkwrap.json, nothing to do // if has a package-lock.json, rename to npm-shrinkwrap.json // if has neither, load the actual tree and save that as npm-shrinkwrap.json // // loadVirtual, fall back to loadActual // rename shrinkwrap file type, and tree.meta.save() if (this.npm.global) { const er = new Error('`npm shrinkwrap` does not work for global packages') er.code = 'ESHRINKWRAPGLOBAL' throw er } const Arborist = require('@npmcli/arborist') const path = this.npm.prefix const sw = resolve(path, 'npm-shrinkwrap.json') const arb = new Arborist({ ...this.npm.flatOptions, path }) const tree = await arb.loadVirtual().catch(() => arb.loadActual()) const { meta } = tree const newFile = meta.hiddenLockfile || !meta.loadedFromDisk const oldFilename = meta.filename const notSW = !newFile && basename(oldFilename) !== 'npm-shrinkwrap.json' // The computed lockfile version of a hidden lockfile is always 3 // even if the actual value of the property is a different. // When shrinkwrap is run with only a hidden lockfile we want to // set the shrinkwrap lockfile version as whatever was explicitly // requested with a fallback to the actual value from the hidden // lockfile. if (meta.hiddenLockfile) { meta.lockfileVersion = arb.options.lockfileVersion || meta.originalLockfileVersion } meta.hiddenLockfile = false meta.filename = sw await meta.save() const updatedVersion = meta.originalLockfileVersion !== meta.lockfileVersion ? meta.lockfileVersion : null if (newFile) { let message = 'created a lockfile as npm-shrinkwrap.json' if (updatedVersion) { message += ` with version ${updatedVersion}` } log.notice('', message) } else if (notSW) { await unlink(oldFilename) let message = 'package-lock.json has been renamed to npm-shrinkwrap.json' if (updatedVersion) { message += ` and updated to version ${updatedVersion}` } log.notice('', message) } else if (updatedVersion) { log.notice('', `npm-shrinkwrap.json updated to version ${updatedVersion}`) } else { log.notice('', 'npm-shrinkwrap.json up to date') } } } module.exports = Shrinkwrap