#22: Display error if daemon version is too low

public/electron.js

@@ -278,6 +278,44 @@ ipcMain.on(Constants.IPC_Browse_Directory + '_sync', (event, data) => {
   });
 });
 
+ipcMain.on(Constants.IPC_Check_Daemon_Version, (event, data) => {
+  const dataDirectory = helpers.resolvePath(data.Directory);
+  helpers
+    .checkDaemonVersion(dataDirectory, data.Version, data.StorageType)
+    .then(code => {
+      standardIPCReply(event, Constants.IPC_Check_Daemon_Version_Reply, {
+        Valid: (code === 0),
+      });
+    })
+    .catch(e=> {
+      standardIPCReply(event, Constants.IPC_Check_Daemon_Version_Reply, {
+        Valid: false,
+      }, e);
+    });
+});
+
+ipcMain.on(Constants.IPC_Check_Daemon_Version + '_sync', (event, data) => {
+  const dataDirectory = helpers.resolvePath(data.Directory);
+  helpers
+  .checkDaemonVersion(dataDirectory, data.Version, data.StorageType)
+  .then(code => {
+    event.returnValue = {
+      data: {
+        Valid: (code === 0),
+      },
+    };
+  })
+  .catch(e => {
+    event.returnValue = {
+      data: {
+        Error: e.toString(),
+        Success: false,
+        Valid: false
+      },
+    };
+  });
+});
+
 ipcMain.on(Constants.IPC_Check_Dependency_Installed, (event, data) => {
   try {
     const exists = fs.lstatSync(data.File).isFile();

src/containers/MountItems/MountItems.js

@@ -95,10 +95,12 @@ class MountItems extends IPCContainer {
       let allowAction = true;
       if (mount) {
         let result = this.sendSyncRequest(Constants.IPC_Check_Daemon_Version, {
+          Directory: this.props.directory,
           StorageType: storageType,
           Version: this.props.version
         });
         if (result.Success) {
+          if (result.Valid) {
             if (this.props.platform !== 'win32') {
               result = this.sendSyncRequest(Constants.IPC_Check_Mount_Location, {
                 Location: location,
@@ -108,6 +110,10 @@ class MountItems extends IPCContainer {
                 this.props.errorHandler(result.Error.toString());
               }
             }
+          } else {
+            allowAction = false;
+            this.props.errorHandler("Incompatible " + storageType + " daemon. Please upgrade " + storageType);
+          }
         } else {
           allowAction = false;
           this.props.errorHandler(result.Error.toString());

src/helpers.js

@@ -16,6 +16,34 @@ const tryParse = (j, def) => {
   }
 };
 
+module.exports.checkDaemonVersion = (directory, version, storageType) => {
+  return new Promise((resolve, reject) => {
+    const processOptions = {
+      detached: true,
+      shell: false,
+      windowsHide: true,
+    };
+
+    const command = path.join(directory, version, (os.platform() === 'win32') ? 'repertory.exe' : 'repertory');
+    const args = [];
+    args.push('-cv');
+    if (Constants.PROVIDER_ARG[storageType.toLowerCase()].length > 0) {
+      args.push(Constants.PROVIDER_ARG[storageType.toLowerCase()]);
+    }
+
+    const process = new spawn(command, args, processOptions);
+
+    process.on('error', err => {
+      reject(err);
+    });
+
+    process.on('exit', code => {
+      resolve(code);
+    });
+    process.unref();
+  });
+};
+
 module.exports.createSignatureFiles = (signature, publicKey) => {
   const fileName1 = RandomString.generate({
     length: 12,