Support check only files for libraries

src/analyzer.ts

@@ -268,13 +268,16 @@ const makeExportStarRelativeForPresentation = (
 
 export default (
   files: File[],
+  checkOnlyFiles: File[],
   extraOptions?: ExtraCommandLineOptions & ExtraOptionsForPresentation,
 ): Analysis => {
   const filteredFiles = filterFiles(files, extraOptions);
 
   const exportMap = getExportMap(filteredFiles);
   expandExportFromStar(filteredFiles, exportMap);
-  filteredFiles.forEach((file) => processImports(file, exportMap));
+  [...filteredFiles, ...checkOnlyFiles].forEach((file) =>
+    processImports(file, exportMap),
+  );
 
   const analysis: Analysis = { unusedExports: {} };
   const unusedFiles: string[] = [];

src/app.ts

@@ -61,11 +61,20 @@ export const analyzeTsConfig = (
   files?: string[],
 ): Analysis => {
   const args = extractOptionsFromFiles(files);
-  const tsConfig = loadTsConfig(tsconfigPath, args.tsFiles);
+  const tsConfig = loadTsConfig(
+    tsconfigPath,
+    args.options?.onlyCheckInputFiles ? args.tsFiles : [],
+  );
+
+  const normalFiles = parseFiles(tsConfig, args.options);
+
+  const checkOnlyFiles = args.options?.onlyCheckInputFiles
+    ? parseFiles({ ...tsConfig, files: args.tsFiles ?? [] }, args.options)
+    : [];
 
   const options = {
     ...args.options,
     baseUrl: tsConfig.baseUrl,
   };
-  return analyze(parseFiles(tsConfig, args.options), options);
+  return analyze(normalFiles, checkOnlyFiles, options);
 };

src/parser/index.ts

@@ -110,7 +110,7 @@ const parseFile = (
       path,
       readFileSync(path, { encoding: 'utf8' }),
       ts.ScriptTarget.ES2015,
-      /*setParentNodes */ true,
+      /* setParentNodes */ true,
     ),
     baseUrl,
     paths,

src/types.ts

@@ -43,6 +43,7 @@ export interface TsConfig {
   baseUrl: string;
   paths?: TsConfigPaths;
   files: string[];
+  checkOnlyFiles?: string[];
 }
 
 export interface ExtraCommandLineOptions {
@@ -59,6 +60,7 @@ export interface ExtraCommandLineOptions {
   showLineNumber?: boolean;
   silent?: boolean;
   findCompletelyUnusedFiles?: boolean;
+  onlyCheckInputFiles?: boolean;
 }
 
 export interface ExtraOptionsForPresentation {