Fix deletion of open file on initial sync

common/spaces/fallback_space_primitives.ts

@@ -23,7 +23,7 @@ export class FallbackSpacePrimitives implements SpacePrimitives {
       return await this.primary.readFile(name);
     } catch (e) {
       console.info(
-        `Could not read file ${name} from primary, trying fallback`,
+        `Could not read file ${name} from primary, trying fallback, primary read error:`,
         e.message,
       );
       try {
@@ -40,7 +40,7 @@ export class FallbackSpacePrimitives implements SpacePrimitives {
       return await this.primary.getFileMeta(name);
     } catch (e) {
       console.info(
-        `Could not fetch file ${name} metadata from primary, trying fallback`,
+        `Could not fetch file ${name} metadata from primary, trying fallback, primary read error`,
         e.message,
       );
       try {

plug-api/app_event.ts

@@ -7,7 +7,7 @@ export type AppEvent =
   | "minieditor:complete"
   | "page:load"
   | "editor:init"
-  | "editor:pageLoaded"
+  | "editor:pageLoaded" // args: pageName, previousPage, isSynced
   | "editor:pageReloaded"
   | "editor:pageSaved"
   | "editor:modeswitch"

web/client.ts

@@ -184,7 +184,12 @@ export class Client {
       if (this.system.plugsUpdated) {
         // To register new commands, update editor state based on new plugs
         this.rebuildEditorState();
-        this.dispatchAppEvent("editor:pageLoaded", this.currentPage);
+        this.dispatchAppEvent(
+          "editor:pageLoaded",
+          this.currentPage,
+          undefined,
+          true,
+        );
         if (operations) {
           // Likely initial sync so let's show visually that we're synced now
           // this.flashNotification(`Synced ${operations} files`, "info");
@@ -299,13 +304,15 @@ export class Client {
         this.system.indexSyscalls,
       ),
       (meta) => fileFilterFn(meta.name),
+      // Run when a list of files has been retrieved
       async () => {
-        // Run when a list of files has been retrieved
+        if (await this.syncService?.hasInitialSyncCompleted()) {
-        await this.loadSettings();
+          await this.loadSettings();
-        if (typeof this.settings?.spaceIgnore === "string") {
+          if (typeof this.settings?.spaceIgnore === "string") {
-          fileFilterFn = gitIgnoreCompiler(this.settings.spaceIgnore).accepts;
+            fileFilterFn = gitIgnoreCompiler(this.settings.spaceIgnore).accepts;
-        } else {
+          } else {
-          fileFilterFn = () => true;
+            fileFilterFn = () => true;
+          }
         }
       },
     );

web/sync_service.ts

@@ -52,9 +52,14 @@ export class SyncService {
       },
     );
 
-    eventHook.addLocalListener("editor:pageLoaded", async (name) => {
+    eventHook.addLocalListener(
-      await this.syncFile(`${name}.md`);
+      "editor:pageLoaded",
-    });
+      async (name, _prevPage, isSynced) => {
+        if (!isSynced) {
+          await this.syncFile(`${name}.md`);
+        }
+      },
+    );
 
     eventHook.addLocalListener("editor:pageSaved", async (name) => {
       const path = `${name}.md`;
@@ -158,19 +163,30 @@ export class SyncService {
         snapshot,
         (path) => this.isSyncCandidate(path),
       );
+      await this.saveSnapshot(snapshot);
+      await this.registerSyncStop();
       this.eventHook.dispatchEvent("sync:success", operations);
     } catch (e: any) {
+      await this.saveSnapshot(snapshot);
+      await this.registerSyncStop();
       this.eventHook.dispatchEvent("sync:error", e.message);
       console.error("Sync error", e.message);
     }
-    await this.saveSnapshot(snapshot);
-    await this.registerSyncStop();
     return operations;
   }
 
+  // Syncs a single file
   async syncFile(name: string) {
+    // Reminder: main reason to do this is not accidentally sync files retrieved via fallthrough (remote) and treat them as locally deleted
+    if (!await this.hasInitialSyncCompleted()) {
+      console.info(
+        "Initial sync hasn't happened yet, skipping sync for individual file",
+        name,
+      );
+      return;
+    }
     if (await this.isSyncing()) {
-      // console.log("Already syncing");
+      console.log("Already syncing, aborting individual file sync for", name);
       return;
     }
     if (!this.isSyncCandidate(name)) {
@@ -199,7 +215,7 @@ export class SyncService {
         }
       }
 
-      await this.spaceSync!.syncFile(snapshot, name, localHash, remoteHash);
+      await this.spaceSync.syncFile(snapshot, name, localHash, remoteHash);
       this.eventHook.dispatchEvent("sync:success");
     } catch (e: any) {
       this.eventHook.dispatchEvent("sync:error", e.message);