1 files changed, 36 insertions, 0 deletions
diff --git a/lib/commands/find-dupes.js b/lib/commands/find-dupes.js
new file mode 100644
index 000000000..5467a94dd
--- /dev/null
+++ b/lib/commands/find-dupes.js
@@ -0,0 +1,36 @@
+// dedupe duplicated packages, or find them in the tree
+const ArboristWorkspaceCmd = require('../arborist-cmd.js')
+
+class FindDupes extends ArboristWorkspaceCmd {
+  /* istanbul ignore next - see test/lib/load-all-commands.js */
+  static get description () {
+    return 'Find duplication in the package tree'
+  }
+
+  /* istanbul ignore next - see test/lib/load-all-commands.js */
+  static get name () {
+    return 'find-dupes'
+  }
+
+  /* istanbul ignore next - see test/lib/load-all-commands.js */
+  static get params () {
+    return [
+      'global-style',
+      'legacy-bundling',
+      'strict-peer-deps',
+      'package-lock',
+      'omit',
+      'ignore-scripts',
+      'audit',
+      'bin-links',
+      'fund',
+      ...super.params,
+    ]
+  }
+
+  async exec (args, cb) {
+    this.npm.config.set('dry-run', true)
+    return this.npm.exec('dedupe', [])
+  }
+}
+module.exports = FindDupes