Add verbose logging flag

README.md

@@ -109,6 +109,10 @@ resolve: {
 No logging from the checker. Please note that this option disables async error reporting because
 this option bans `console.log()` usage.
 
+### verbose *(boolean) (default=false)*
+
+Enable verbose logging. Log more than just errors (e.g. typescript path, execution time).
+
 ### compiler *(string) (default='typescript')*
 
 Allows use of TypeScript compilers other than the official one. Must be

src/checker/runtime.ts

@@ -420,9 +420,7 @@ function createChecker(receive: (cb: (msg: Req) => void) => void, send: (msg: Re
     }
 
     function processDiagnostics({ seq }: Diagnostics.Request) {
-        let silent = !!loaderConfig.silent;
-
-        if (!silent) {
+        if (loaderConfig.verbose) {
             console.log(colors.cyan(`\n[${instanceName}] Checking started in a separate process...`));
         }
 

src/instance.ts

@@ -112,7 +112,7 @@ export function ensureInstance(
         context
     );
 
-    if (!loaderConfig.silent) {
+    if (loaderConfig.verbose) {
         const sync = watching === WatchMode.Enabled ? ' (in a forked process)' : '';
         console.log(`\n[${instanceName}] Using typescript@${compilerInfo.compilerVersion} from ${compilerInfo.compilerPath} and `
             + `"tsconfig.json" from ${configFilePath}${sync}.\n`);
@@ -437,6 +437,7 @@ function setupAfterCompile(compiler, instanceName, forkChecker = false) {
         const watchMode = isWatching(compilation.compiler);
         const instance: Instance = resolveInstance(compilation.compiler, instanceName);
         const silent = instance.loaderConfig.silent;
+        const verbose = instance.loaderConfig.verbose;
         const asyncErrors = watchMode === WatchMode.Enabled && !silent;
 
         let emitError = (msg) => {
@@ -462,7 +463,7 @@ function setupAfterCompile(compiler, instanceName, forkChecker = false) {
             ? Promise.resolve()
             : instance.checker.getDiagnostics()
                 .then(diags => {
-                    if (!silent) {
+                    if (verbose) {
                         if (diags.length) {
                             console.error(colors.red(`\n[${instanceName}] Checking finished with ${diags.length} errors`));
                         } else {

src/interfaces.ts

@@ -20,6 +20,7 @@ export interface LoaderConfig {
     babelOptions?: any;
     usePrecompiledFiles?: boolean;
     silent?: boolean;
+    verbose?: boolean;
     useCache?: boolean;
     cacheDirectory?: string;
     entryFileIsJs?: boolean;