From 4feb074c03e9b93a4e7b1edca1b8db802be19480 Mon Sep 17 00:00:00 2001
From: Juergen Kunz <juergen@foss.global>
Date: Thu, 5 Mar 2026 15:01:36 +0000
Subject: [PATCH] fix(mod_unpack): handle partial readdirSync results when
 moving nested directory entries and add diagnostic log

---
 changelog.md                        |  7 +++++++
 ts/00_commitinfo_data.ts            |  2 +-
 ts/mod_unpack/classes.tsunpacker.ts | 22 ++++++++++++++++------
 3 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/changelog.md b/changelog.md
index bce6b24..7fe4414 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 2026-03-05 - 4.1.23 - fix(mod_unpack)
+handle partial readdirSync results when moving nested directory entries and add diagnostic log
+
+- Loop over readdirSync results until the nested directory is empty to avoid missing entries from partial reads
+- Count moved entries and print a diagnostic message with the final destination entry count
+- Keep removal of the now-empty nested directory (fs.rmdirSync) after moving contents
+
 ## 2026-03-05 - 4.1.22 - fix(mod_compiler)
 improve logging of successful output directories to include a sorted list of entries and use a shortened relative path
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 3082e54..ea019a4 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/tsbuild',
-  version: '4.1.22',
+  version: '4.1.23',
   description: 'A tool for compiling TypeScript files using the latest nightly features, offering flexible APIs and a CLI for streamlined development.'
 }
diff --git a/ts/mod_unpack/classes.tsunpacker.ts b/ts/mod_unpack/classes.tsunpacker.ts
index 46799f9..41d207f 100644
--- a/ts/mod_unpack/classes.tsunpacker.ts
+++ b/ts/mod_unpack/classes.tsunpacker.ts
@@ -116,17 +116,27 @@ export class TsUnpacker {
     }
 
     // Step 2: Move all contents from nested dir up to dest dir
-    const nestedEntries = fs.readdirSync(nestedPath);
-    for (const entry of nestedEntries) {
-      fs.renameSync(
-        path.join(nestedPath, entry),
-        path.join(this.destDir, entry),
-      );
+    // Use a loop to handle any partial readdirSync results
+    let moved = 0;
+    while (true) {
+      const entries = fs.readdirSync(nestedPath);
+      if (entries.length === 0) break;
+      for (const entry of entries) {
+        fs.renameSync(
+          path.join(nestedPath, entry),
+          path.join(this.destDir, entry),
+        );
+        moved++;
+      }
     }
 
     // Step 3: Remove the now-empty nested directory
     fs.rmdirSync(nestedPath);
 
+    // Diagnostic: verify final state
+    const finalEntries = fs.readdirSync(this.destDir);
+    console.log(`   📦 Unpacked ${this.sourceFolderName}: moved ${moved} entries, final: ${finalEntries.length} entries`);
+
     return true;
   }
 }