Added option to exclude dependencies from output package.json

Author: lostpebble

README.md

@@ -145,6 +145,7 @@ An object with the following structure:
        join(__dirname, "../other-workspace/package.json"),
      ],
      forceWebpackVersion: "webpack5",
+     excludeDependencies: ["aws-sdk"],
   }
 ```
 
@@ -171,6 +172,10 @@ into a final distribution project, you might want to set this option.
 `webpack4` or `webpack5`. If you are using a version of Webpack lower than 4- then set it to `webpack4`. This may help
 folks who are using Webpack in an environment where multiple versions might be present.
 
+`excludeDependencies` : Here you can set any dependencies you absolutely never want in your output `package.json` file, 
+even if they happen to be used by your code. This is useful in some edge cases, such as where an execution environment
+provides these dependencies for you automatically, without installation required.
+
 ### :mag: Things to take note of
 
 You should remember to set the `"main": "./index.js"` to the correct filename (would probably be the output bundle file

index.d.ts

@@ -13,6 +13,7 @@ declare class GeneratePackageJsonPlugin extends Plugin {
       useInstalledVersions?: boolean;
       resolveContextPaths?: string[];
       forceWebpackVersion?: "webpack4" | "webpack5";
+      excludeDependencies?: string[];
     },
   );
 }

index.js

@@ -24,6 +24,7 @@ function GeneratePackageJsonPlugin(
     useInstalledVersions = true,
     resolveContextPaths,
     forceWebpackVersion,
+    excludeDependencies = [],
   } = {}
 ) {
   if (debug) {
@@ -62,6 +63,7 @@ function GeneratePackageJsonPlugin(
     useInstalledVersions,
     resolveContextPaths,
     forceWebpackVersion,
+    excludeDependencies,
   });
 }
 
@@ -332,6 +334,13 @@ GeneratePackageJsonPlugin.prototype.apply = function (compiler) {
       }
     }
 
+    for (const depName of this.excludeDependencies) {
+      if (modules[depName] != null) {
+        delete modules[depName];
+        logIfDebug(`GPJWP: excluded "${depName}" from generated package.json`);
+      }
+    }
+
     logIfDebug(`GPJWP: Modules to be used in generated package.json`, modules);
 
     const finalPackageValues = Object.assign({}, basePackageValues, { dependencies: orderKeys(modules) });

package.json

@@ -1,6 +1,6 @@
 {
   "name": "generate-package-json-webpack-plugin",
-  "version": "2.4.0",
+  "version": "2.5.0",
   "description": "Generates a package.json file containing the external modules used by your webpack bundle",
   "main": "index.js",
   "types": "index.d.ts",