Initial commit

2020-08-23 18:11:31 +02:00
commit 45050621c8
14 changed files with 4286 additions and 0 deletions
@@ -0,0 +1,106 @@
+#!/usr/bin/env node
+
+// TODO: This borrows from '@yarnpkg/builder', but the only thing we add here
+// is raw-loader for '.in` files.
+
+const webpack = require(`webpack`);
+const { RawSource } = require(`webpack-sources`);
+
+const IS_PROD = process.argv[2] === `-p`;
+const EXTERNALS = [
+  `@yarnpkg/cli`,
+  `@yarnpkg/core`,
+  `@yarnpkg/fslib`,
+  `@yarnpkg/plugin-pnp`,
+  `clipanion`,
+];
+
+const compiler = webpack({
+  context: __dirname,
+  entry: `.`,
+
+  mode: IS_PROD ? `production` : `development`,
+  devtool: false,
+
+  node: {
+    __dirname: false,
+    __filename: false,
+  },
+
+  output: {
+    filename: IS_PROD ? `yarn-plugin-nixify.js` : `yarn-plugin-nixify.dev.js`,
+    libraryTarget: `var`,
+    library: `plugin`,
+  },
+
+  resolve: {
+    extensions: [`.mjs`, `.js`, `.ts`, `.tsx`, `.json`],
+  },
+
+  externals: Object.fromEntries(
+    EXTERNALS.map((name) => [name, `commonjs ${name}`])
+  ),
+
+  module: {
+    rules: [
+      {
+        test: /\.ts$/,
+        loader: `babel-loader`,
+        options: {
+          plugins: [
+            [`@babel/plugin-proposal-decorators`, { legacy: true }],
+            [`@babel/plugin-proposal-class-properties`, { loose: true }],
+          ],
+          presets: ["@babel/preset-typescript"],
+        },
+      },
+      {
+        test: /\.in$/,
+        loader: `raw-loader`,
+      },
+    ],
+  },
+
+  plugins: [
+    // This plugin wraps the generated bundle so that it doesn't actually
+    // get evaluated right now - until after we give it a custom require
+    // function that will be able to fetch the dynamic modules.
+    {
+      apply: (compiler) => {
+        compiler.hooks.compilation.tap(`WrapYarn`, (compilation) => {
+          compilation.hooks.processAssets.tap(
+            {
+              name: `WrapYarn`,
+              stage: webpack.Compilation.PROCESS_ASSETS_STAGE_ADDITIONS,
+            },
+            (assets) => {
+              for (const file in assets) {
+                assets[file] = new RawSource(
+                  [
+                    `module.exports = {`,
+                    `name: "yarn-plugin-nixify",`,
+                    `factory: function (require) {`,
+                    assets[file].source(),
+                    `return plugin;`,
+                    `}`,
+                    `};`,
+                  ].join(`\n`)
+                );
+              }
+            }
+          );
+        });
+      },
+    },
+  ],
+});
+
+compiler.run((err, stats) => {
+  if (err) {
+    console.error(err);
+    process.exit(1);
+  } else if (stats && stats.compilation.errors.length > 0) {
+    console.error(stats.toString(`errors-only`));
+    process.exit(1);
+  }
+});