Improve code readability #2

+ Improve syntax

internal/commands/status_cmd.go

@@ -54,8 +54,8 @@ func findNumberOfCommitDiffs(srcCommit *object.Commit, dstCommit *object.Commit)
 		return diffRange, false
 	}
 
-	baseCommitHashes := []string{}
-	destCommitHashes := []string{}
+	var baseCommitHashes []string
+	var destCommitHashes []string
 
 	// Try to find all differences, limit only to five last changes to avoid reading whole repository at once
 	for {

internal/commands/sync_cmd.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"errors"
 	"fmt"
 	"gitlab.com/revalus/grm/internal/config"
 
@@ -26,15 +27,14 @@ const (
 func fetchRepository(repo *git.Repository) (bool, error) {
 	err := repo.Fetch(&git.FetchOptions{})
 
-	if err == git.NoErrAlreadyUpToDate {
+	switch {
+	case errors.Is(err, git.NoErrAlreadyUpToDate):
 		return false, nil
-	}
-
-	if err != nil && err != git.NoErrAlreadyUpToDate {
-		return false, err
-	}
-
+	case errors.Is(err, git.NoErrAlreadyUpToDate):
+		return false, nil
+	default:
 		return true, nil
+	}
 }
 
 func cloneRepository(destPath string, repoCfg *config.RepositoryConfig) (bool, error) {
@@ -62,21 +62,23 @@ func (s Synchronizer) Command(repoCfg config.RepositoryConfig) CommandStatus {
 	destPath := fmt.Sprintf("%v/%v", s.workspace, repoCfg.Dest)
 	repo, err := git.PlainOpen(destPath)
 
-	if err != nil && err == git.ErrRepositoryNotExists {
+	if err != nil {
+		if errors.Is(err, git.ErrRepositoryNotExists) {
 			cmdStatus.Changed, err = cloneRepository(destPath, &repoCfg)
 			cmdStatus.Message = syncCloned
-	} else if err == nil {
+		} else {
+			cmdStatus.Error = true
+			cmdStatus.Message = err.Error()
+		}
+		return cmdStatus
+	}
+
 	cmdStatus.Changed, err = fetchRepository(repo)
 	if cmdStatus.Changed {
 		cmdStatus.Message = syncFetched
 	} else {
 		cmdStatus.Message = syncUpToDate
 	}
-	} else {
-		cmdStatus.Error = true
-		cmdStatus.Message = err.Error()
-		return cmdStatus
-	}
 
 	if err != nil {
 		cmdStatus.Error = true

internal/config/config_file_parse_test.go

@@ -1,6 +1,7 @@
 package config
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"reflect"
@@ -101,9 +102,9 @@ repositories:
 `)
 	_, err := GetRepositoryConfig(exampleWrongYamlConfig, "yaml")
 
-	expectedError := fmt.Sprintf(errMissingSrcField, 0)
+	expectedError := errors.New(fmt.Sprintf(errMissingSrcField, 0))
 
-	if err.Error() != expectedError {
+	if errors.Is(err, expectedError) {
 		t.Errorf("Expected to get error with value %v, instead of this got: %v", expectedError, err.Error())
 	}
 }
@@ -127,7 +128,7 @@ repositories:
 	}
 	expectedError := getDuplicateFieldError("name", "example2", []int{1, 2})
 
-	if err.Error() != expectedError.Error() {
+	if errors.Is(err, expectedError) {
 		t.Errorf("Expected to get error with value %v, instead of this got: %v", expectedError.Error(), err.Error())
 	}
 }
@@ -151,7 +152,7 @@ repositories:
 
 	expectedError := getDuplicateFieldError("dest", "example", []int{1, 2})
 
-	if err.Error() != expectedError.Error() {
+	if errors.Is(err, expectedError) {
 		t.Errorf("Expected to get error with value \"%v\", instead of this got: \"%v\"", expectedError, err)
 	}
 }