const reifyFinish = require('../utils/reify-finish.js') const ArboristWorkspaceCmd = require('../arborist-cmd.js') // dedupe duplicated packages, or find them in the tree class Dedupe extends ArboristWorkspaceCmd { static description = 'Reduce duplication in the package tree' static name = 'dedupe' static params = [ 'install-strategy', 'legacy-bundling', 'global-style', 'strict-peer-deps', 'package-lock', 'omit', 'include', 'ignore-scripts', 'audit', 'bin-links', 'fund', 'dry-run', ...super.params, ] async exec () { if (this.npm.global) { const er = new Error('`npm dedupe` does not work in global mode.') er.code = 'EDEDUPEGLOBAL' throw er } const dryRun = this.npm.config.get('dry-run') const where = this.npm.prefix const Arborist = require('@npmcli/arborist') const opts = { ...this.npm.flatOptions, path: where, dryRun, // Saving during dedupe would only update if one of your direct // dependencies was also duplicated somewhere in your tree. It would be // confusing if running this were to also update your package.json. In // order to reduce potential confusion we set this to false. save: false, workspaces: this.workspaceNames, } const arb = new Arborist(opts) await arb.dedupe(opts) await reifyFinish(this.npm, arb) } } module.exports = Dedupe