feat(tsbuild): Add tsconfig.json support and safer compiler option merging; protect critical options; apply path and enum transforms; bump dependencies.

changelog.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## 2025-11-02 - 2.7.0 - feat(tsbuild)
+Add tsconfig.json support and safer compiler option merging; protect critical options; apply path and enum transforms; bump dependencies.
+
+- Add robust tsconfig.json reading with graceful fallback when no tsconfig is present or it is invalid
+- Merge compiler options in a clear priority order (defaults -> tsconfig -> protected defaults -> programmatic -> CLI flags)
+- Introduce protected (critical) compiler options that cannot be overridden by tsconfig.json: outDir, noEmitOnError, declaration, emitDecoratorMetadata, inlineSourceMap
+- Convert string values from tsconfig (target, module, moduleResolution) to TypeScript enum values where applicable; special-case NodeNext
+- Transform tsconfig path mappings by replacing './ts_' with './dist_ts_' to keep runtime path resolution consistent with compiled output
+- Expose getCriticalDefaults helper and adjust mergeCompilerOptions to apply protected defaults before programmatic and CLI overrides
+- Update README with documentation for tsconfig support, merge order, protected compiler options, and example tsconfig
+- Bump dependencies/devDependencies: @push.rocks/smartcli ^4.0.19, @push.rocks/smartlog ^3.1.10, typescript 5.9.3, @git.zone/tsrun ^1.6.2, @git.zone/tstest ^2.7.0
+
 ## 2025-08-29 - 2.6.8 - fix(tsbuild)
 Avoid process.exit in library, add confirmskiplibcheck flag, improve CLI exit handling and JSON/quiet modes, update test script
 

package.json

@@ -38,17 +38,17 @@
   "dependencies": {
     "@git.zone/tspublish": "^1.10.3",
     "@push.rocks/early": "^4.0.4",
-    "@push.rocks/smartcli": "^4.0.11",
+    "@push.rocks/smartcli": "^4.0.19",
     "@push.rocks/smartdelay": "^3.0.5",
     "@push.rocks/smartfile": "^11.2.7",
-    "@push.rocks/smartlog": "^3.1.8",
+    "@push.rocks/smartlog": "^3.1.10",
     "@push.rocks/smartpath": "^6.0.0",
     "@push.rocks/smartpromise": "^4.2.3",
-    "typescript": "5.9.2"
+    "typescript": "5.9.3"
   },
   "devDependencies": {
-    "@git.zone/tsrun": "^1.2.47",
+    "@git.zone/tsrun": "^1.6.2",
-    "@git.zone/tstest": "^2.3.4",
+    "@git.zone/tstest": "^2.7.0",
     "@types/node": "^22.15.21"
   },
   "files": [

readme.md

@@ -184,6 +184,49 @@ Example:
 npx tsbuild --skiplibcheck --disallowimplicitany
 ```
 
+## Configuration with tsconfig.json
+
+`@git.zone/tsbuild` fully supports `tsconfig.json` for compiler configuration. All compiler options from your `tsconfig.json` will be respected and merged with tsbuild's defaults.
+
+### Option Priority (Merge Order)
+
+When multiple configuration sources are present, they are merged in the following order (later sources override earlier ones):
+
+1. **Default compiler options** - Base defaults for all options
+2. **tsconfig.json** - All compiler options from your project's `tsconfig.json` (if present)
+3. **Protected defaults** - Critical options for build integrity (see below)
+4. **Programmatic options** - Options passed to API functions
+5. **CLI flags** - Command-line arguments (highest priority)
+
+### Protected Compiler Options
+
+To ensure build integrity and correct functionality, the following options are protected and cannot be overridden by `tsconfig.json` alone (but can be overridden programmatically or via CLI):
+
+- `outDir: 'dist_ts/'` - Required for path transformation logic
+- `noEmitOnError: true` - Prevents broken builds from being emitted
+- `declaration: true` - Ensures .d.ts files for library consumers
+- `emitDecoratorMetadata: true` - Required for dependency injection frameworks
+- `inlineSourceMap: true` - Provides consistent debugging experience
+
+### Working Without tsconfig.json
+
+`@git.zone/tsbuild` works perfectly fine without a `tsconfig.json` file. If no `tsconfig.json` is found, it will gracefully fall back to sensible defaults without errors.
+
+Example `tsconfig.json`:
+```json
+{
+  "compilerOptions": {
+    "experimentalDecorators": true,
+    "useDefineForClassFields": false,
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "esModuleInterop": true,
+    "verbatimModuleSyntax": true
+  }
+}
+```
+
 ## Default Compiler Options
 
 By default, `@git.zone/tsbuild` uses the following compiler options:
@@ -200,7 +243,7 @@ By default, `@git.zone/tsbuild` uses the following compiler options:
   target: ScriptTarget.ESNext,
   moduleResolution: ModuleResolutionKind.NodeNext,
   lib: ['lib.dom.d.ts', 'lib.es2022.d.ts'],
-  noImplicitAny: false, // Now allowing implicit any by default
+  noImplicitAny: false,
   esModuleInterop: true,
   useDefineForClassFields: false,
   verbatimModuleSyntax: true,
@@ -208,7 +251,7 @@ By default, `@git.zone/tsbuild` uses the following compiler options:
 }
 ```
 
-These options can be overridden by providing a custom `CompilerOptions` object.
+These defaults are merged with your `tsconfig.json` options (if present), programmatic options, and CLI flags according to the priority order described above.
 
 ## Path Resolution
 

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/tsbuild',
-  version: '2.6.8',
+  version: '2.7.0',
   description: 'A tool for compiling TypeScript files using the latest nightly features, offering flexible APIs and a CLI for streamlined development.'
 }

ts/tsbuild.classes.tsbuild.ts

@@ -62,19 +62,56 @@ export class TsBuild {
    * Helper function to read and process tsconfig.json
    */
   private getTsConfigOptions(): CompilerOptions {
-    const tsconfig = plugins.smartfile.fs.toObjectSync(plugins.path.join(paths.cwd, 'tsconfig.json'));
+    let tsconfig: any;
-    const returnObject: CompilerOptions = {};
+
-    
+    // Try to read tsconfig.json, but don't fail if it doesn't exist
+    try {
+      tsconfig = plugins.smartfile.fs.toObjectSync(plugins.path.join(paths.cwd, 'tsconfig.json'));
+    } catch (error) {
+      // tsconfig.json doesn't exist or is invalid - use defaults
+      return {};
+    }
+
     if (!tsconfig || !tsconfig.compilerOptions) {
-      return returnObject;
+      return {};
     }
-    
+
-    // Process baseUrl
+    // Start by copying ALL compiler options from tsconfig.json
-    if (tsconfig.compilerOptions.baseUrl) {
+    const returnObject: CompilerOptions = { ...tsconfig.compilerOptions };
-      returnObject.baseUrl = tsconfig.compilerOptions.baseUrl;
+
+    // Apply special transformations for string-to-enum conversions
+
+    // Process target (convert string to enum)
+    if (tsconfig.compilerOptions.target && typeof tsconfig.compilerOptions.target === 'string') {
+      const targetKey = tsconfig.compilerOptions.target.toUpperCase();
+      if (targetKey in plugins.typescript.ScriptTarget) {
+        returnObject.target = plugins.typescript.ScriptTarget[targetKey as keyof typeof plugins.typescript.ScriptTarget];
+      }
     }
-    
+
-    // Process paths
+    // Process module (convert string to enum)
+    if (tsconfig.compilerOptions.module && typeof tsconfig.compilerOptions.module === 'string') {
+      const moduleKey = tsconfig.compilerOptions.module.toUpperCase();
+      if (moduleKey in plugins.typescript.ModuleKind) {
+        returnObject.module = plugins.typescript.ModuleKind[moduleKey as keyof typeof plugins.typescript.ModuleKind];
+      } else if (moduleKey === 'NODENEXT') {
+        returnObject.module = plugins.typescript.ModuleKind.NodeNext;
+      }
+    }
+
+    // Process moduleResolution (convert string to enum)
+    if (tsconfig.compilerOptions.moduleResolution && typeof tsconfig.compilerOptions.moduleResolution === 'string') {
+      const moduleResolutionKey = tsconfig.compilerOptions.moduleResolution.toUpperCase();
+      if (moduleResolutionKey in plugins.typescript.ModuleResolutionKind) {
+        returnObject.moduleResolution = plugins.typescript.ModuleResolutionKind[
+          moduleResolutionKey as keyof typeof plugins.typescript.ModuleResolutionKind
+        ];
+      } else if (moduleResolutionKey === 'NODENEXT') {
+        returnObject.moduleResolution = plugins.typescript.ModuleResolutionKind.NodeNext;
+      }
+    }
+
+    // Apply path transformations (ts_ → dist_ts_)
     if (tsconfig.compilerOptions.paths) {
       returnObject.paths = { ...tsconfig.compilerOptions.paths };
       for (const path of Object.keys(returnObject.paths)) {
@@ -83,58 +120,24 @@ export class TsBuild {
         }
       }
     }
-    
+
-    // Process target
-    if (tsconfig.compilerOptions.target) {
-      if (typeof tsconfig.compilerOptions.target === 'string') {
-        const targetKey = tsconfig.compilerOptions.target.toUpperCase();
-        if (targetKey in plugins.typescript.ScriptTarget) {
-          returnObject.target = plugins.typescript.ScriptTarget[targetKey as keyof typeof plugins.typescript.ScriptTarget];
-        }
-      }
-    }
-    
-    // Process module
-    if (tsconfig.compilerOptions.module) {
-      if (typeof tsconfig.compilerOptions.module === 'string') {
-        const moduleKey = tsconfig.compilerOptions.module.toUpperCase();
-        if (moduleKey in plugins.typescript.ModuleKind) {
-          returnObject.module = plugins.typescript.ModuleKind[moduleKey as keyof typeof plugins.typescript.ModuleKind];
-        } else if (moduleKey === 'NODENEXT') {
-          returnObject.module = plugins.typescript.ModuleKind.NodeNext;
-        }
-      }
-    }
-    
-    // Process moduleResolution
-    if (tsconfig.compilerOptions.moduleResolution) {
-      if (typeof tsconfig.compilerOptions.moduleResolution === 'string') {
-        const moduleResolutionKey = tsconfig.compilerOptions.moduleResolution.toUpperCase();
-        if (moduleResolutionKey in plugins.typescript.ModuleResolutionKind) {
-          returnObject.moduleResolution = plugins.typescript.ModuleResolutionKind[
-            moduleResolutionKey as keyof typeof plugins.typescript.ModuleResolutionKind
-          ];
-        } else if (moduleResolutionKey === 'NODENEXT') {
-          returnObject.moduleResolution = plugins.typescript.ModuleResolutionKind.NodeNext;
-        }
-      }
-    }
-    
-    // Copy boolean options directly
-    const booleanOptions = [
-      'experimentalDecorators', 'useDefineForClassFields', 
-      'esModuleInterop', 'verbatimModuleSyntax'
-    ];
-    
-    for (const option of booleanOptions) {
-      if (option in tsconfig.compilerOptions) {
-        (returnObject as any)[option] = (tsconfig.compilerOptions as any)[option];
-      }
-    }
-    
     return returnObject;
   }
 
+  /**
+   * Returns critical default options that should not be overridden by tsconfig.json
+   * These options are essential for tsbuild's functionality and build integrity
+   */
+  private getCriticalDefaults(): CompilerOptions {
+    return {
+      outDir: 'dist_ts/',           // Required for path transformation logic
+      noEmitOnError: true,           // Build integrity - prevent broken builds
+      declaration: true,             // Library consumers depend on .d.ts files
+      emitDecoratorMetadata: true,   // Required for dependency injection frameworks
+      inlineSourceMap: true,         // Consistent debugging experience
+    };
+  }
+
   /**
    * Process command line arguments and return applicable compiler options
    */
@@ -162,6 +165,13 @@ export class TsBuild {
 
   /**
    * Merges compilerOptions with the default compiler options
+   *
+   * Merge order (later overwrites earlier):
+   * 1. compilerOptionsDefault - Base defaults for all options
+   * 2. getTsConfigOptions() - User's tsconfig.json (all options)
+   * 3. getCriticalDefaults() - Protected options that shouldn't be overridden by tsconfig.json
+   * 4. customTsOptions - Programmatic options (can override critical defaults)
+   * 5. getCommandLineOptions() - CLI flags (highest priority)
    */
   public mergeCompilerOptions(
     customTsOptions: CompilerOptions = {},
@@ -169,10 +179,11 @@ export class TsBuild {
   ): CompilerOptions {
     // create merged options
     const mergedOptions: CompilerOptions = {
-      ...compilerOptionsDefault,
+      ...compilerOptionsDefault,           // 1. All defaults
-      ...customTsOptions,
+      ...this.getTsConfigOptions(),        // 2. User's tsconfig.json (all options)
-      ...this.getCommandLineOptions(argvArg),
+      ...this.getCriticalDefaults(),       // 3. Protected overrides
-      ...this.getTsConfigOptions(),
+      ...customTsOptions,                  // 4. Programmatic options
+      ...this.getCommandLineOptions(argvArg), // 5. CLI flags (highest priority)
     };
 
     return mergedOptions;