Restructure project directories

Follow the standard of all go projects

internal/config/config_file_parse.go

@@ -0,0 +1,69 @@
+package config
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"strings"
+
+	"gopkg.in/yaml.v3"
+)
+
+func GetRepositoryConfig(data []byte, fileExtension string) (Configuration, error) {
+
+	var config Configuration
+	var err error
+
+	data = []byte(os.ExpandEnv(string(data)))
+
+	switch fileExtension {
+	case "yaml":
+		err = yaml.Unmarshal(data, &config)
+	default:
+		return Configuration{}, errors.New(errNotSupportedType)
+	}
+
+	if err != nil {
+		return Configuration{}, err
+	}
+
+	if config.Workspace == "" {
+
+		return Configuration{}, errors.New(errMissingWorkspaceField)
+	}
+	// Get counters to check if name or dest values are not duplicated
+	nameFieldCounter := make(map[string][]int)
+	destFieldCounter := make(map[string][]int)
+
+	for index, repo := range config.Repositories {
+		if repo.Src == "" {
+			errorMessage := fmt.Sprintf(errMissingSrcField, index)
+			return Configuration{}, errors.New(errorMessage)
+		}
+		if repo.Name == "" {
+			splittedGit := strings.Split(repo.Src, "/")
+			nameWithExcention := splittedGit[len(splittedGit)-1]
+			name := strings.Split(nameWithExcention, ".")[0]
+			config.Repositories[index].Name = name
+		}
+		if repo.Dest == "" {
+			config.Repositories[index].Dest = config.Repositories[index].Name
+		}
+		nameFieldCounter[config.Repositories[index].Name] = append(nameFieldCounter[config.Repositories[index].Name], index)
+		destFieldCounter[config.Repositories[index].Dest] = append(destFieldCounter[config.Repositories[index].Dest], index)
+	}
+
+	for rowId, items := range nameFieldCounter {
+		if len(items) != 1 {
+			return Configuration{}, getDuplicateFieldError("name", rowId, items)
+		}
+	}
+
+	for rowId, items := range destFieldCounter {
+		if len(items) != 1 {
+			return Configuration{}, getDuplicateFieldError("dest", rowId, items)
+		}
+	}
+
+	return config, err
+}