preview: detect changes from atomic writes performed by AI (#1542)

Author: MykolaGolubyev

znai-docs/znai/release-notes/1.91/add-2026-06-01-preview-atomic-write-linux.md

@@ -0,0 +1 @@
+* Add: Live preview on Linux now detects files saved via atomic write (write-to-temp then rename), so changes from AI agents are picked up reliably

znai-server/src/main/java/org/testingisdocumenting/znai/server/preview/FileWatcher.java

@@ -179,7 +179,9 @@ private void register(Path path) {
                 return;
             }
 
-            final WatchKey key = path.register(watchService, new WatchEvent.Kind[]{StandardWatchEventKinds.ENTRY_MODIFY},
+            // ENTRY_CREATE is required to handle swap in atomic writes
+            final WatchKey key = path.register(watchService,
+                    new WatchEvent.Kind[]{StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_MODIFY},
                     SensitivityWatchEventModifier.HIGH);
             pathByKey.put(key, path);
 

znai-server/src/main/java/org/testingisdocumenting/znai/server/preview/PreviewPushFileChangeHandler.java

@@ -137,6 +137,11 @@ private void onMarkupChange(Path path) {
 
     private void onDependentChange(Path path) {
         execute(() -> {
+            String pathAsString = path.toString();
+            if (pathAsString.contains(".md.tmp.") || pathAsString.endsWith(".md.tmp")) {
+                return;
+            }
+
             Collection<TocItem> dependentTocItems = previewWebSite.dependentTocItems(path);
             if (dependentTocItems.isEmpty()) {
                 ConsoleOutputs.out("no markup files depends on ", BLUE, path);