Improve the error logging.

Author: bigkevmcd

cmd/services/main.go

@@ -96,7 +96,7 @@ func main() {
 
 	err := app.Run(os.Args)
 	if err != nil {
-		log.Fatal(err)
+		log.Fatalf("%v", err)
 	}
 }
 

pkg/cache/local_cache.go

@@ -132,7 +132,6 @@ func (l *LocalCache) CommitAndPushBranch(ctx context.Context, repoURL, branch, m
 	if err != nil {
 		return fmt.Errorf("failed to create a WorkTree: %w", err)
 	}
-	// TODO: provide credentials.
 	_, err = w.Commit(message, &git.CommitOptions{
 		Author: &object.Signature{
 			Name:  l.credentials.name,

pkg/promote/promote.go

@@ -38,20 +38,20 @@ func PromoteService(cache cache.GitCache, token, service, fromEnv, toEnv, newBra
 	fileToUpdate := pathForService(service)
 	newBody, err := cache.ReadFileFromBranch(ctx, fromURL, fileToUpdate, "master")
 	if err != nil {
-		return fmt.Errorf("failed to read the file %v from the %v environment: %s", fileToUpdate, fromEnv, err)
+		return fmt.Errorf("failed to read the file %v from the %v environment: %v", fileToUpdate, fromEnv, err)
 	}
 	err = cache.CreateAndCheckoutBranch(ctx, toURL, "master", newBranchName)
 	if err != nil {
-		return fmt.Errorf("failed to create and checkout the new branch %v for the %v environment: %s", newBranchName, toEnv, err)
+		return fmt.Errorf("failed to create and checkout the new branch %v for the %v environment: %v", newBranchName, toEnv, err)
 	}
 	err = cache.WriteFileToBranchAndStage(ctx, toURL, newBranchName, fileToUpdate, newBody)
 	if err != nil {
-		return fmt.Errorf("failed to write the updated file to %v: %s", fileToUpdate, err)
+		return fmt.Errorf("failed to write the updated file to %v: %v", fileToUpdate, err)
 	}
 
 	err = cache.CommitAndPushBranch(ctx, toURL, newBranchName, "this is a test commit", token)
 	if err != nil {
-		return fmt.Errorf("failed to commit and push branch for environment %v: %s", toEnv, err)
+		return fmt.Errorf("failed to commit and push branch for environment %v: %v", toEnv, err)
 	}
 
 	pr, err := createPullRequest(ctx, fromEnv, fromURL, toEnv, toURL, token, newBranchName)