fix(mod_compiler): flush directory entries before unpack to avoid XFS delayed-log causing partial readdir results

ts/mod_compiler/classes.tscompiler.ts

@@ -1,5 +1,6 @@
 import type { CompilerOptions, Diagnostic, Program } from 'typescript';
 import typescript from 'typescript';
+import * as fs from 'fs';
 import * as smartdelay from '@push.rocks/smartdelay';
 import * as smartpromise from '@push.rocks/smartpromise';
 import * as smartpath from '@push.rocks/smartpath';
@@ -367,6 +368,12 @@ export class TsCompiler {
 
       // Perform unpack if compilation succeeded
       if (result.errorSummary.totalErrors === 0) {
+        // Force XFS to commit all pending directory entries before unpacking.
+        // TypeScript's writeFileSync creates entries that may reside in XFS's
+        // delayed log. Without sync, readdir can return partial results.
+        require('child_process').execSync('sync');
+        this.syncDirectoryTree(destDir);
+
         try {
           await performUnpack(pattern, destDir, this.cwd);
         } catch (unpackErr: any) {
@@ -495,6 +502,27 @@ export class TsCompiler {
     return success;
   }
 
+  /**
+   * Recursively fsync all directories in a tree.
+   * Forces XFS to commit pending directory entries from its log.
+   */
+  private syncDirectoryTree(dirPath: string): void {
+    try {
+      const fd = fs.openSync(dirPath, 'r');
+      fs.fsyncSync(fd);
+      fs.closeSync(fd);
+
+      const entries = fs.readdirSync(dirPath, { withFileTypes: true });
+      for (const entry of entries) {
+        if (entry.isDirectory()) {
+          this.syncDirectoryTree(require('path').join(dirPath, entry.name));
+        }
+      }
+    } catch {
+      // Ignore errors (directory may not exist)
+    }
+  }
+
   /**
    * Merge multiple error summaries into one
    */