🩹 fix: parallelism (#2386)

- Nightly revealed that I am doing way too much with the `parallelism` static. 
- Indicate compiler label in logger

## Type of change

**PATCH: backwards compatible change**

sources/@roots/bud-build/src/config/infrastructureLogging.ts

@@ -9,16 +9,16 @@ export const infrastructureLogging: Factory<
     console: bud.hooks.filter(`build.infrastructureLogging.console`, {
       ...console,
       error: (...args: any[]) => {
-        logger.scope(`webpack`).error(...args)
+        logger.scope(bud.label, `webpack`).error(...args)
       },
       info: (...args: any[]) => {
-        logger.scope(`webpack`).info(...args)
+        logger.scope(bud.label, `webpack`).info(...args)
       },
       log: (...args: any[]) => {
-        logger.scope(`webpack`).log(...args)
+        logger.scope(bud.label, `webpack`).log(...args)
       },
       warn: (...args: any[]) => {
-        logger.scope(`webpack`).info(...args)
+        logger.scope(bud.label, `webpack`).info(...args)
       },
     }),
     level: bud.hooks.filter(`build.infrastructureLogging.level`, `log`),

sources/@roots/bud-build/src/service.ts

@@ -111,6 +111,7 @@ export class Build extends Service implements BudBuild {
     )
 
     this.logger.success(`configuration successfully built`)
+    this.logger.info(this.config)
     await this.app.hooks.fire(`build.after`, this.app)
 
     return this.config

sources/@roots/bud-compiler/src/service.tsx

@@ -71,14 +71,7 @@ export class Compiler extends Service implements BudCompiler {
           ),
         )
 
-    const cores = Math.max(cpus().length, 1)
-    const compilations = Math.max(
-      Object.keys(bud.children ?? []).length,
-      1,
-    )
-    const parallelism = Math.max(Math.floor(cores / compilations), 1)
-
-    this.config.parallelism = parallelism
+    this.config.parallelism = Math.max(cpus().length - 1, 1)
     this.logger.info(`parallel compilations: ${this.config.parallelism}`)
 
     await bud.hooks.fire(`compiler.before`, bud).catch(error => {
@@ -96,7 +89,6 @@ export class Compiler extends Service implements BudCompiler {
 
     this.instance.hooks.done.tap(bud.label, (stats: any) => {
       this.onStats(stats)
-
       bud.hooks.fire(`compiler.done`, bud, this.stats).catch(error => {
         throw error
       })
@@ -111,6 +103,7 @@ export class Compiler extends Service implements BudCompiler {
   @bind
   public onError(error: BudErrorClass | webpack.WebpackError) {
     process.exitCode = 1
+    if (!error) return
 
     this.app.server?.appliedMiddleware?.hot?.publish({error})