feat(output): display number of merged branches

Author: VChet

README.md

@@ -33,7 +33,7 @@ Example output:
 
 ```bash
 $ git-merged-branches
-Branches merged into 'master':
+3 branches merged into 'master':
 bugfix/fix-crash-on-start
 feature/add-new-feature
 hotfix/urgent-fix
@@ -59,7 +59,7 @@ With this setup, `git-merged-branches` will generate links for branches with suc
 
 ```bash
 $ git-merged-branches
-Branches merged into 'master':
+4 branches merged into 'master':
 fix/EXTERNAL-391
 fix/TOKEN-123_some-fix <https://your-jira-instance.net/browse/TOKEN-123>
 hotfix

src/output.ts

@@ -39,7 +39,7 @@ export function outputMergedBranches(branches: string[], targetBranch: string, c
     return console.info(`No branches merged into '${targetBranch}'.`);
   }
 
-  console.info(`Branches merged into '${targetBranch}':`)
+  console.info(`${branches.length} branches merged into '${targetBranch}':`)
   console.info(formatTaskBranches(branches, config).join("\n"));
 
   const remoteBranches = fetchRemoteBranches("origin");

src/tests/output.test.ts

@@ -77,7 +77,7 @@ describe("outputMergedBranches", () => {
     const branches = ["feat/TOKEN-800_new-feature", "fix/TOKEN-123_some-fix"];
 
     outputMergedBranches(branches, "master", DEFAULT_CONFIG);
-    expect(infoSpy).toHaveBeenNthCalledWith(1, "Branches merged into 'master':");
+    expect(infoSpy).toHaveBeenNthCalledWith(1, "2 branches merged into 'master':");
     const branchOutput = [
       "feat/TOKEN-800_new-feature <https://test-instance.org/browse/TOKEN-800>",
       "fix/TOKEN-123_some-fix <https://test-instance.org/browse/TOKEN-123>"
@@ -96,7 +96,7 @@ describe("outputMergedBranches", () => {
     vi.spyOn(repoMethods, "fetchRemoteBranches").mockReturnValue(branches);
 
     outputMergedBranches(branches, "master", DEFAULT_CONFIG);
-    expect(infoSpy).toHaveBeenNthCalledWith(1, "Branches merged into 'master':");
+    expect(infoSpy).toHaveBeenNthCalledWith(1, "2 branches merged into 'master':");
     const branchOutput = [
       "feat/TOKEN-800_new-feature <https://test-instance.org/browse/TOKEN-800>",
       "fix/TOKEN-123_some-fix <https://test-instance.org/browse/TOKEN-123>"