feat: fixture source files and cdk config

Author: thoroc

packages/knip/fixtures/plugins/aws-cdk/bin/infra.ts

@@ -0,0 +1,8 @@
+// @ts-ignore
+import * as cdk from 'aws-cdk-lib';
+import { MyStack } from '../lib/myStack';
+
+const app = new cdk.App();
+new MyStack(app, 'MyStack');
+
+app.synth();

packages/knip/fixtures/plugins/aws-cdk/cdk.json

@@ -0,0 +1,19 @@
+{
+  "app": "ts-node --project=tsconfig.json --prefer-ts-exts cdk/bin/infra.ts",
+  "watch": {
+    "include": ["cdk/lib/**", "cdk/bin/**"]
+  },
+  "context": {
+    "aws-cdk-lib/core:enableDiffNoFail": true,
+    "aws-cdk-lib/core:bootstrapQualifier": "custom-v2",
+    "aws-cdk-lib/core:checkSecretUsage": true,
+    "aws-cdk-lib/core:target-partitions": [
+      "aws",
+      "aws-cn"
+    ],
+    "aws-cdk-lib/aws-apigateway:disableCloudWatchRole": true,
+    "aws-cdk-lib/aws-apigateway:usagePlanKeyOrderInsensitiveId": true,
+    "aws-cdk-lib/aws-cloudfront:defaultSecurityPolicyTLSv1.2_2021": false,
+    "aws-cdk-lib/aws-lambda:recognizeLayerVersion": true
+  }
+}

packages/knip/fixtures/plugins/aws-cdk/lib/myConstruct.ts

@@ -0,0 +1,10 @@
+// @ts-ignore
+import { Construct } from 'constructs';
+
+export class MyConstruct extends Construct {
+  constructor(scope: Construct, id: string) {
+    super(scope, id);
+
+    // The code that defines your stack goes here
+  }
+}

packages/knip/fixtures/plugins/aws-cdk/lib/myStack.ts

@@ -0,0 +1,11 @@
+// @ts-ignore
+import * as cdk from 'aws-cdk-lib';
+
+export class MyStack extends cdk.Stack {
+  constructor(scope: cdk.App, id: string) {
+    super(scope, id);
+
+    // The code that defines your stack goes here
+  }
+}
+

packages/knip/src/plugins/aws-cdk/index.ts

@@ -1,5 +1,8 @@
-import type { IsPluginEnabled, Plugin } from '../../types/config.js';
+import { toDependency } from 'src/util/input.js';
+import type { IsPluginEnabled, Plugin, ResolveConfig } from '../../types/config.js';
+import { compact } from '../../util/array.js';
 import { hasDependency } from '../../util/plugin.js';
+import type { AwsCdkConfig } from './types.ts';
 
 // https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib-readme.html
 
@@ -11,17 +14,25 @@ const isEnabled: IsPluginEnabled = ({ dependencies }) => hasDependency(dependenc
 
 const config: string[] = ["cdk.json"];
 
+const resolveConfig: ResolveConfig<AwsCdkConfig> = async config => {
+  if (!config) return [];
+
+  const app = config.app.split(" ")[0];
+  const watch = config.watch?.include ?? [];
+  const context = Object.keys(config.context ?? {}).map(key => key.split("/")[0]) ?? [];
+  return compact([app, ...watch, ...context]).map(id => toDependency(id));
+};
+
 const production: string[] = [
   '{src/,cdk/,}bin/**/*.{js,ts}',
   '{src/,cdk/,}lib/**/*.{js,ts}',
 ];
 
-
-
 export default {
   title,
   enablers,
   isEnabled,
   config,
+  resolveConfig,
   production,
 } satisfies Plugin;

packages/knip/src/plugins/aws-cdk/types.ts

@@ -0,0 +1,7 @@
+export type AwsCdkConfig = {
+  app: string;
+  watch?: {
+    include: string[];
+  };
+  context?: Record<string, unknown>;
+};

packages/knip/test/plugins/aws-cdk.test.ts

@@ -15,20 +15,14 @@ test('Find dependencies with the aws-cdk plugin', async () => {
 
   console.log(issues);
 
-  // assert(issues.binaries['package.json']['cdk']);
-  assert(issues.dependencies['package.json']['aws-cdk-lib']);
-  assert(issues.dependencies['package.json']['constructs']);
-  // assert(issues.devDependencies['package.json']['aws-cdk']);
-  assert(issues.devDependencies['package.json']['@types/aws-cdk-lib']);
-  assert(issues.devDependencies['package.json']['@types/constructs']);
-  assert(issues.devDependencies['package.json']['ts-node']);
-  // assert(issues.devDependencies['package.json']['typescript']);
+  assert(issues.devDependencies['package.json']['aws-cdk']);
 
   assert.deepEqual(counters, {
     ...baseCounters,
-    dependencies: 2,
-    devDependencies: 4,
-    processed: 0,
-    total: 0,
+    dependencies: 0,
+    devDependencies: 1,
+    unlisted: 1,
+    processed: 3,
+    total: 3,
   });
 });