feat(watch mode): Add watch mode support with CLI options and enhanced documentation

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/tstest',
-  version: '2.1.0',
+  version: '2.2.0',
   description: 'a test utility to run tests that match test/**/*.ts'
 }

ts/index.ts

@@ -16,6 +16,8 @@ export const runCli = async () => {
   let startFromFile: number | null = null;
   let stopAtFile: number | null = null;
   let timeoutSeconds: number | null = null;
+  let watchMode: boolean = false;
+  let watchIgnorePatterns: string[] = [];
   
   // Parse options
   for (let i = 0; i < args.length; i++) {
@@ -84,6 +86,18 @@ export const runCli = async () => {
           process.exit(1);
         }
         break;
+      case '--watch':
+      case '-w':
+        watchMode = true;
+        break;
+      case '--watch-ignore':
+        if (i + 1 < args.length) {
+          watchIgnorePatterns = args[++i].split(',');
+        } else {
+          console.error('Error: --watch-ignore requires a comma-separated list of patterns');
+          process.exit(1);
+        }
+        break;
       default:
         if (!arg.startsWith('-')) {
           testPath = arg;
@@ -110,6 +124,8 @@ export const runCli = async () => {
     console.error('  --startFrom <n>   Start running from test file number n');
     console.error('  --stopAt <n>      Stop running at test file number n');
     console.error('  --timeout <s>     Timeout test files after s seconds');
+    console.error('  --watch, -w       Watch for file changes and re-run tests');
+    console.error('  --watch-ignore    Patterns to ignore in watch mode (comma-separated)');
     process.exit(1);
   }
   
@@ -125,7 +141,12 @@ export const runCli = async () => {
   }
   
   const tsTestInstance = new TsTest(process.cwd(), testPath, executionMode, logOptions, tags, startFromFile, stopAtFile, timeoutSeconds);
-  await tsTestInstance.run();
+  
+  if (watchMode) {
+    await tsTestInstance.runWatch(watchIgnorePatterns);
+  } else {
+    await tsTestInstance.run();
+  }
 };
 
 // Execute CLI when this file is run directly

ts/tstest.classes.tstest.ts

@@ -101,6 +101,77 @@ export class TsTest {
     tapCombinator.evaluate();
   }
   
+  public async runWatch(ignorePatterns: string[] = []) {
+    const smartchokInstance = new plugins.smartchok.Smartchok([this.testDir.cwd]);
+    
+    console.clear();
+    this.logger.watchModeStart();
+    
+    // Initial run
+    await this.run();
+    
+    // Set up file watcher
+    const fileChanges = new Map<string, NodeJS.Timeout>();
+    const debounceTime = 300; // 300ms debounce
+    
+    const runTestsAfterChange = async () => {
+      console.clear();
+      const changedFiles = Array.from(fileChanges.keys());
+      fileChanges.clear();
+      
+      this.logger.watchModeRerun(changedFiles);
+      await this.run();
+      this.logger.watchModeWaiting();
+    };
+    
+    // Start watching before subscribing to events
+    await smartchokInstance.start();
+    
+    // Subscribe to file change events
+    const changeObservable = await smartchokInstance.getObservableFor('change');
+    const addObservable = await smartchokInstance.getObservableFor('add');
+    const unlinkObservable = await smartchokInstance.getObservableFor('unlink');
+    
+    const handleFileChange = (changedPath: string) => {
+      // Skip if path matches ignore patterns
+      if (ignorePatterns.some(pattern => changedPath.includes(pattern))) {
+        return;
+      }
+      
+      // Clear existing timeout for this file if any
+      if (fileChanges.has(changedPath)) {
+        clearTimeout(fileChanges.get(changedPath));
+      }
+      
+      // Set new timeout for this file
+      const timeout = setTimeout(() => {
+        fileChanges.delete(changedPath);
+        if (fileChanges.size === 0) {
+          runTestsAfterChange();
+        }
+      }, debounceTime);
+      
+      fileChanges.set(changedPath, timeout);
+    };
+    
+    // Subscribe to all relevant events
+    changeObservable.subscribe(([path]) => handleFileChange(path));
+    addObservable.subscribe(([path]) => handleFileChange(path));
+    unlinkObservable.subscribe(([path]) => handleFileChange(path));
+    
+    this.logger.watchModeWaiting();
+    
+    // Handle Ctrl+C to exit gracefully
+    process.on('SIGINT', async () => {
+      this.logger.watchModeStop();
+      await smartchokInstance.stop();
+      process.exit(0);
+    });
+    
+    // Keep the process running
+    await new Promise(() => {}); // This promise never resolves
+  }
+  
   private async runSingleTestOrSkip(fileNameArg: string, fileIndex: number, totalFiles: number, tapCombinator: TapCombinator) {
     // Check if this file should be skipped based on range
     if (this.startFromFile !== null && fileIndex < this.startFromFile) {

ts/tstest.logging.ts

@@ -520,4 +520,47 @@ export class TsTestLogger {
     
     return diff;
   }
+  
+  // Watch mode methods
+  watchModeStart() {
+    if (this.options.json) {
+      this.logJson({ event: 'watchModeStart' });
+      return;
+    }
+    
+    this.log(this.format('\n👀 Watch Mode', 'cyan'));
+    this.log(this.format('   Running tests in watch mode...', 'dim'));
+    this.log(this.format('   Press Ctrl+C to exit\n', 'dim'));
+  }
+  
+  watchModeWaiting() {
+    if (this.options.json) {
+      this.logJson({ event: 'watchModeWaiting' });
+      return;
+    }
+    
+    this.log(this.format('\n   Waiting for file changes...', 'dim'));
+  }
+  
+  watchModeRerun(changedFiles: string[]) {
+    if (this.options.json) {
+      this.logJson({ event: 'watchModeRerun', changedFiles });
+      return;
+    }
+    
+    this.log(this.format('\n🔄 File changes detected:', 'cyan'));
+    changedFiles.forEach(file => {
+      this.log(this.format(`   • ${file}`, 'yellow'));
+    });
+    this.log(this.format('\n   Re-running tests...\n', 'dim'));
+  }
+  
+  watchModeStop() {
+    if (this.options.json) {
+      this.logJson({ event: 'watchModeStop' });
+      return;
+    }
+    
+    this.log(this.format('\n\n👋 Stopping watch mode...', 'cyan'));
+  }
 }

ts/tstest.plugins.ts

@@ -13,6 +13,7 @@ export {
 // @push.rocks scope
 import * as consolecolor from '@push.rocks/consolecolor';
 import * as smartbrowser from '@push.rocks/smartbrowser';
+import * as smartchok from '@push.rocks/smartchok';
 import * as smartdelay from '@push.rocks/smartdelay';
 import * as smartfile from '@push.rocks/smartfile';
 import * as smartlog from '@push.rocks/smartlog';
@@ -23,6 +24,7 @@ import * as tapbundle from '../dist_ts_tapbundle/index.js';
 export {
   consolecolor,
   smartbrowser,
+  smartchok,
   smartdelay,
   smartfile,
   smartlog,