Git support (#143)

src-tauri/yaak-sync/index.ts

@@ -3,6 +3,8 @@ import { emit } from '@tauri-apps/api/event';
 import { SyncOp } from './bindings/gen_sync';
 import { WatchEvent, WatchResult } from './bindings/gen_watch';
 
+export * from './bindings/gen_models';
+
 export async function calculateSync(workspaceId: string, syncDir: string) {
   return invoke<SyncOp[]>('plugin:yaak-sync|calculate', {
     workspaceId,
@@ -27,20 +29,53 @@ export function watchWorkspaceFiles(
   syncDir: string,
   callback: (e: WatchEvent) => void,
 ) {
+  console.log('Watching workspace files', workspaceId, syncDir);
   const channel = new Channel<WatchEvent>();
   channel.onmessage = callback;
-  const promise = invoke<WatchResult>('plugin:yaak-sync|watch', {
+  const unlistenPromise = invoke<WatchResult>('plugin:yaak-sync|watch', {
     workspaceId,
     syncDir,
     channel,
   });
 
-  return () => {
-    promise
-      .then(({ unlistenEvent }) => {
-        console.log('Cancelling workspace watch', workspaceId, unlistenEvent);
-        return emit(unlistenEvent);
+  unlistenPromise.then(({ unlistenEvent }) => {
+    addWatchKey(unlistenEvent);
+  });
+
+  return () =>
+    unlistenPromise
+      .then(async ({ unlistenEvent }) => {
+        console.log('Unwatching workspace files', workspaceId, syncDir);
+        unlistenToWatcher(unlistenEvent);
       })
       .catch(console.error);
-  };
 }
+
+function unlistenToWatcher(unlistenEvent: string) {
+  emit(unlistenEvent).then(() => {
+    removeWatchKey(unlistenEvent);
+  });
+}
+
+function getWatchKeys() {
+  return sessionStorage.getItem('workspace-file-watchers')?.split(',').filter(Boolean) ?? [];
+}
+
+function setWatchKeys(keys: string[]) {
+  sessionStorage.setItem('workspace-file-watchers', keys.join(','));
+}
+
+function addWatchKey(key: string) {
+  const keys = getWatchKeys();
+  setWatchKeys([...keys, key]);
+}
+
+function removeWatchKey(key: string) {
+  const keys = getWatchKeys();
+  setWatchKeys(keys.filter((k) => k !== key));
+}
+
+// On page load, unlisten to all zombie watchers
+const keys = getWatchKeys();
+console.log('Unsubscribing to zombie file watchers', keys);
+keys.forEach(unlistenToWatcher);