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-rw-r--r--packages/monorepo-scripts/src/find_unused_dependencies.ts44
1 files changed, 44 insertions, 0 deletions
diff --git a/packages/monorepo-scripts/src/find_unused_dependencies.ts b/packages/monorepo-scripts/src/find_unused_dependencies.ts
new file mode 100644
index 000000000..406500b21
--- /dev/null
+++ b/packages/monorepo-scripts/src/find_unused_dependencies.ts
@@ -0,0 +1,44 @@
+#!/usr/bin/env node
+
+import * as depcheck from 'depcheck';
+import * as fs from 'fs';
+import lernaGetPackages = require('lerna-get-packages');
+import * as _ from 'lodash';
+import { exec as execAsync } from 'promisify-child-process';
+
+import { constants } from './constants';
+import { utils } from './utils';
+
+const IGNORE_PACKAGES = ['@0xproject/deployer'];
+
+(async () => {
+ utils.log('*** NOTE: Not all deps listed here are actually not required. ***');
+ utils.log("*** `depcheck` isn't perfect so double check before actually removing any. ***\n");
+ const lernaPackages = lernaGetPackages(constants.monorepoRootPath);
+ for (const lernaPackage of lernaPackages) {
+ if (_.includes(IGNORE_PACKAGES, lernaPackage.package.name)) {
+ continue; // skip
+ }
+ utils.log(`Checking ${lernaPackage.package.name} for unused deps. This might take a while...`);
+
+ const configs = {};
+ const result: any = await depcheckAsync(lernaPackage.location, configs);
+ if (!_.isEmpty(result.dependencies)) {
+ _.each(result.dependencies, dep => {
+ utils.log(dep);
+ });
+ }
+ utils.log('\n');
+ }
+})().catch(err => {
+ utils.log(err);
+ process.exit(1);
+});
+
+async function depcheckAsync(path: string, opts: any) {
+ return new Promise<void>((resolve, reject) => {
+ depcheck(path, opts, (unused: any) => {
+ resolve(unused);
+ });
+ });
+}