Initial boiler plate project

node_modules/next/dist/esm/build/compiler.js

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+import { webpack } from "next/dist/compiled/webpack/webpack";
+function generateStats(result, stat) {
+    const { errors, warnings } = stat.toJson({
+        preset: "errors-warnings",
+        moduleTrace: true
+    });
+    if (errors && errors.length > 0) {
+        result.errors.push(...errors);
+    }
+    if (warnings && warnings.length > 0) {
+        result.warnings.push(...warnings);
+    }
+    return result;
+}
+// Webpack 5 requires the compiler to be closed (to save caches)
+// Webpack 4 does not have this close method so in order to be backwards compatible we check if it exists
+function closeCompiler(compiler) {
+    return new Promise((resolve, reject)=>{
+        // @ts-ignore Close only exists on the compiler in webpack 5
+        return compiler.close((err)=>err ? reject(err) : resolve());
+    });
+}
+export function runCompiler(config, { runWebpackSpan, inputFileSystem }) {
+    return new Promise((resolve, reject)=>{
+        const compiler = webpack(config);
+        // Ensure we use the previous inputFileSystem
+        if (inputFileSystem) {
+            compiler.inputFileSystem = inputFileSystem;
+        }
+        compiler.fsStartTime = Date.now();
+        compiler.run((err, stats)=>{
+            const webpackCloseSpan = runWebpackSpan.traceChild("webpack-close", {
+                name: config.name || "unknown"
+            });
+            webpackCloseSpan.traceAsyncFn(()=>closeCompiler(compiler)).then(()=>{
+                if (err) {
+                    const reason = err.stack ?? err.toString();
+                    if (reason) {
+                        return resolve([
+                            {
+                                errors: [
+                                    {
+                                        message: reason,
+                                        details: err.details
+                                    }
+                                ],
+                                warnings: [],
+                                stats
+                            },
+                            compiler.inputFileSystem
+                        ]);
+                    }
+                    return reject(err);
+                } else if (!stats) throw new Error("No Stats from webpack");
+                const result = webpackCloseSpan.traceChild("webpack-generate-error-stats").traceFn(()=>generateStats({
+                        errors: [],
+                        warnings: [],
+                        stats
+                    }, stats));
+                return resolve([
+                    result,
+                    compiler.inputFileSystem
+                ]);
+            });
+        });
+    });
+}
+
+//# sourceMappingURL=compiler.js.map