Improves "yarn workspaces info" (#5389)

* Improves "yarn workspaces info" to include data about how workspaces depend on each other

* Update workspaces.js

* Update workspaces.js

* Update workspaces.js

Author: arcanis

__tests__/commands/workspaces.js

@@ -31,9 +31,13 @@ test('workspaces info should list the workspaces', (): Promise<void> => {
     expect(reporter.getBufferJson()).toEqual({
       'workspace-1': {
         location: 'packages/workspace-child-1',
+        workspaceDependencies: [],
+        mismatchedWorkspaceDependencies: [],
       },
       'workspace-2': {
         location: 'packages/workspace-child-2',
+        workspaceDependencies: ['workspace-1'],
+        mismatchedWorkspaceDependencies: [],
       },
     });
   });

__tests__/fixtures/workspace/run-basic/packages/workspace-child-2/package.json

@@ -5,5 +5,8 @@
     "prescript": "echo workspace-2 prescript",
     "script": "echo workspace-2 script",
     "postscript": "echo workspace-2 postscript"
+  },
+  "dependencies": {
+    "workspace-1": "1.0.0"
   }
 }

src/cli/commands/workspaces.js

@@ -4,9 +4,11 @@ import type Config from '../../config.js';
 import {MessageError} from '../../errors.js';
 import type {Reporter} from '../../reporters/index.js';
 import buildSubCommands from './_build-sub-commands.js';
+import {DEPENDENCY_TYPES} from '../../constants.js';
 
 const invariant = require('invariant');
 const path = require('path');
+const semver = require('semver');
 
 export function hasWrapper(commander: Object, args: Array<string>): boolean {
   return true;
@@ -27,8 +29,31 @@ export async function info(config: Config, reporter: Reporter, flags: Object, ar
   const publicData = {};
 
   for (const workspaceName of Object.keys(workspaces)) {
+    const {loc, manifest} = workspaces[workspaceName];
+
+    const workspaceDependencies = new Set();
+    const mismatchedWorkspaceDependencies = new Set();
+
+    for (const dependencyType of DEPENDENCY_TYPES) {
+      if (dependencyType !== 'peerDependencies') {
+        for (const dependencyName of Object.keys(manifest[dependencyType] || {})) {
+          if (Object.prototype.hasOwnProperty.call(workspaces, dependencyName)) {
+            invariant(manifest && manifest[dependencyType], 'The request should exist');
+            const requestedRange = manifest[dependencyType][dependencyName];
+            if (semver.satisfies(workspaces[dependencyName].manifest.version, requestedRange)) {
+              workspaceDependencies.add(dependencyName);
+            } else {
+              mismatchedWorkspaceDependencies.add(dependencyName);
+            }
+          }
+        }
+      }
+    }
+
     publicData[workspaceName] = {
-      location: path.relative(config.lockfileFolder, workspaces[workspaceName].loc).replace(/\\/g, '/'),
+      location: path.relative(config.lockfileFolder, loc).replace(/\\/g, '/'),
+      workspaceDependencies: Array.from(workspaceDependencies),
+      mismatchedWorkspaceDependencies: Array.from(mismatchedWorkspaceDependencies),
     };
   }