Add NotStagedChangesFound (#37)

* Handler error when not staged changes detected (#5)

* Add NotStagedChangesFoundError (#14)

Author: ksercs

src/git/client.ts

@@ -267,12 +267,17 @@ export default class Git {
         Logger.logInfo(`no local branch ${toBranch}`);
       }
 
-      await Git.fetch(upstreamBranch);
-      Logger.logInfo(`git checkout ${Git.remote}/${upstreamBranch}`);
-      await Git.git.checkout(`${Git.remote}/${upstreamBranch}`);
-      Logger.logInfo(`git checkout -b ${toBranch}`);
-      await Git.git.checkout(['-b', `${toBranch}`]);
-      Logger.logInfo(`now at branch: ${await Git.getBranchName()}`);
+      try {
+        await Git.fetch(upstreamBranch);
+        Logger.logInfo(`git checkout ${Git.remote}/${upstreamBranch}`);
+        await Git.git.checkout(`${Git.remote}/${upstreamBranch}`);
+        Logger.logInfo(`git checkout -b ${toBranch}`);
+        await Git.git.checkout(['-b', `${toBranch}`]);
+        Logger.logInfo(`now at branch: ${await Git.getBranchName()}`);
+      } catch (e) {
+        Logger.showNotStagedChangesFoundError(e.message.slice(7));
+        throw e;
+      }
     }
 
     private static async cherryPick (firstCommit: string, lastCommit: string) {

src/info/Logger.ts

@@ -11,7 +11,8 @@ const ERRORS = {
   NoFirstCommitError: 'No first commit found. Check that a git repository is opened.',
   IncorrectBranchNameError: '"$" is not correct branch name. Name your branch as *branch__upstream*',
   NoCommitInBranchError: 'There is no new commits in "$" branch',
-  NoLocalBranchError: 'Branch "$"does not exist. Did you forget to cherry-pick?'
+  NoLocalBranchError: 'Branch "$"does not exist. Did you forget to cherry-pick?',
+  NotStagedChangesFoundError: 'Not staged changes are found. $'
 };
 
 const WARNINGS = {