fix: minify mainlib docs json (#9963)

* fix: minify mainlib docs json

* fix: minify them all

packages/api-extractor/src/api/Extractor.ts

@@ -41,6 +41,11 @@ export interface IExtractorInvokeOptions {
 	 */
 	compilerState?: CompilerState;
 
+	/**
+	 * Whether to minify the resulting doc model JSON, i.e. without any indentation or newlines.
+	 */
+	docModelMinify?: boolean;
+
 	/**
 	 * Indicates that API Extractor is running as part of a local build, e.g. on developer's
 	 * machine.
@@ -270,7 +275,7 @@ export class Extractor {
 			apiPackage.saveToJsonFile(extractorConfig.apiJsonFilePath, {
 				toolPackage: Extractor.packageName,
 				toolVersion: Extractor.version,
-
+				minify: options?.docModelMinify ?? false,
 				newlineConversion: extractorConfig.newlineKind,
 				ensureFolderExists: true,
 				testMode: extractorConfig.testMode,

packages/api-extractor/src/cli/RunAction.ts

@@ -27,6 +27,8 @@ export class RunAction extends CommandLineAction {
 
 	private readonly _typescriptCompilerFolder: CommandLineStringParameter;
 
+	private readonly _minify: CommandLineFlagParameter;
+
 	public constructor(_parser: ApiExtractorCommandLine) {
 		super({
 			actionName: 'run',
@@ -57,6 +59,12 @@ export class RunAction extends CommandLineAction {
 			description: 'Show additional informational messages in the output.',
 		});
 
+		this._minify = this.defineFlagParameter({
+			parameterLongName: '--minify',
+			parameterShortName: '-m',
+			description: 'Minify the resulting doc model JSON, i.e. without any indentation or newlines.',
+		});
+
 		this._diagnosticsParameter = this.defineFlagParameter({
 			parameterLongName: '--diagnostics',
 			description:
@@ -136,6 +144,7 @@ export class RunAction extends CommandLineAction {
 
 		const extractorResult: ExtractorResult = Extractor.invoke(extractorConfig, {
 			localBuild: this._localParameter.value,
+			docModelMinify: this._minify.value,
 			showVerboseMessages: this._verboseParameter.value,
 			showDiagnostics: this._diagnosticsParameter.value,
 			typescriptCompilerFolder,