1 files changed, 56 insertions, 0 deletions
diff --git a/packages/monorepo-scripts/src/deps_versions.ts b/packages/monorepo-scripts/src/deps_versions.ts
new file mode 100644
index 000000000..84b024427
--- /dev/null
+++ b/packages/monorepo-scripts/src/deps_versions.ts
@@ -0,0 +1,56 @@
+#!/usr/bin/env node
+
+import chalk from 'chalk';
+import * as fs from 'fs';
+import {sync as globSync} from 'glob';
+import * as _ from 'lodash';
+
+interface Dependencies {
+    [depName: string]: string;
+}
+interface Versions {
+    [packageName: string]: string;
+}
+interface VersionsByDependency {
+    [depName: string]: Versions;
+}
+
+const PACKAGE_JSON_GLOB = '../*/package.json';
+
+function log(...args: any[]) {
+    console.log(...args); // tslint:disable-line:no-console
+}
+
+function getDependencies(path: string): Dependencies {
+    const file = fs.readFileSync(path).toString();
+    const parsed = JSON.parse(file);
+    const dependencies = {
+        ...parsed.dependencies,
+        ...parsed.devDependencies,
+    };
+    return dependencies;
+}
+
+const files = globSync(PACKAGE_JSON_GLOB);
+const versionsByDependency: VersionsByDependency = {};
+files.map(path => {
+    const [_1, packageName, _2] = path.split('/');
+    const dependencies = getDependencies(path);
+    _.map(dependencies, (version: string, depName: string) => {
+        if (_.isUndefined(versionsByDependency[depName])) {
+            versionsByDependency[depName] = {};
+        }
+        versionsByDependency[depName][packageName] = version;
+    });
+});
+
+_.map(versionsByDependency, (versions: Versions, depName: string) => {
+    if (_.uniq(_.values(versions)).length === 1) {
+        delete versionsByDependency[depName];
+    } else {
+        log(chalk.bold(depName));
+        _.map(versions, (version: string, packageName: string) => {
+            log(`├── ${packageName} -> ${version}`);
+        });
+    }
+});