refactor: Restructure project files for better organization, readability, and maintainability

pkg/helper.go

@@ -1,176 +0,0 @@
-// Package pkg /
-/*****
-@author    Jonas Kaninda
-@license   MIT License <https://opensource.org/licenses/MIT>
-@Copyright © 2024 Jonas Kaninda
-**/
-package pkg
-
-import (
-	"bytes"
-	"fmt"
-	"github.com/jkaninda/pg-bkup/utils"
-	"gopkg.in/yaml.v3"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strings"
-)
-
-func intro() {
-	utils.Info("Starting PostgreSQL Backup...")
-	utils.Info("Copyright (c) 2024 Jonas Kaninda ")
-}
-
-// copyToTmp copy file to temporary directory
-func deleteTemp() {
-	utils.Info("Deleting %s ...", tmpPath)
-	err := filepath.Walk(tmpPath, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-		// Check if the current item is a file
-		if !info.IsDir() {
-			// Delete the file
-			err = os.Remove(path)
-			if err != nil {
-				return err
-			}
-		}
-		return nil
-	})
-	if err != nil {
-		utils.Error("Error deleting files: %v", err)
-	} else {
-		utils.Info("Deleting %s ... done", tmpPath)
-	}
-}
-
-// TestDatabaseConnection  tests the database connection
-func testDatabaseConnection(db *dbConfig) {
-
-	utils.Info("Connecting to %s database ...", db.dbName)
-	// Test database connection
-	query := "SELECT version();"
-
-	// Set the environment variable for the database password
-	err := os.Setenv("PGPASSWORD", db.dbPassword)
-	if err != nil {
-		return
-	}
-	// Prepare the psql command
-	cmd := exec.Command("psql",
-		"-U", db.dbUserName, // database user
-		"-d", db.dbName, // database name
-		"-h", db.dbHost, // host
-		"-p", db.dbPort, // port
-		"-c", query, // SQL command to execute
-	)
-	// Capture the output
-	var out bytes.Buffer
-	cmd.Stdout = &out
-	cmd.Stderr = &out
-
-	// Run the command and capture any errors
-	err = cmd.Run()
-	if err != nil {
-		utils.Fatal("Error running psql command: %v\nOutput: %s\n", err, out.String())
-		return
-	}
-	utils.Info("Successfully connected to %s database", db.dbName)
-
-}
-
-// checkPubKeyFile checks gpg public key
-func checkPubKeyFile(pubKey string) (string, error) {
-	// Define possible key file names
-	keyFiles := []string{filepath.Join(gpgHome, "public_key.asc"), filepath.Join(gpgHome, "public_key.gpg"), pubKey}
-
-	// Loop through key file names and check if they exist
-	for _, keyFile := range keyFiles {
-		if _, err := os.Stat(keyFile); err == nil {
-			// File exists
-			return keyFile, nil
-		} else if os.IsNotExist(err) {
-			// File does not exist, continue to the next one
-			continue
-		} else {
-			// An unexpected error occurred
-			return "", err
-		}
-	}
-
-	// Return an error if neither file exists
-	return "", fmt.Errorf("no public key file found")
-}
-
-// checkPrKeyFile checks private key
-func checkPrKeyFile(prKey string) (string, error) {
-	// Define possible key file names
-	keyFiles := []string{filepath.Join(gpgHome, "private_key.asc"), filepath.Join(gpgHome, "private_key.gpg"), prKey}
-
-	// Loop through key file names and check if they exist
-	for _, keyFile := range keyFiles {
-		if _, err := os.Stat(keyFile); err == nil {
-			// File exists
-			return keyFile, nil
-		} else if os.IsNotExist(err) {
-			// File does not exist, continue to the next one
-			continue
-		} else {
-			// An unexpected error occurred
-			return "", err
-		}
-	}
-
-	// Return an error if neither file exists
-	return "", fmt.Errorf("no public key file found")
-}
-
-// readConf reads config file and returns Config
-func readConf(configFile string) (*Config, error) {
-	if utils.FileExists(configFile) {
-		buf, err := os.ReadFile(configFile)
-		if err != nil {
-			return nil, err
-		}
-
-		c := &Config{}
-		err = yaml.Unmarshal(buf, c)
-		if err != nil {
-			return nil, fmt.Errorf("in file %q: %w", configFile, err)
-		}
-
-		return c, err
-	}
-	return nil, fmt.Errorf("config file %q not found", configFile)
-}
-
-// checkConfigFile checks config files and returns one config file
-func checkConfigFile(filePath string) (string, error) {
-	// Define possible config file names
-	configFiles := []string{filepath.Join(workingDir, "config.yaml"), filepath.Join(workingDir, "config.yml"), filePath}
-
-	// Loop through config file names and check if they exist
-	for _, configFile := range configFiles {
-		if _, err := os.Stat(configFile); err == nil {
-			// File exists
-			return configFile, nil
-		} else if os.IsNotExist(err) {
-			// File does not exist, continue to the next one
-			continue
-		} else {
-			// An unexpected error occurred
-			return "", err
-		}
-	}
-
-	// Return an error if neither file exists
-	return "", fmt.Errorf("no config file found")
-}
-func RemoveLastExtension(filename string) string {
-	if idx := strings.LastIndex(filename, "."); idx != -1 {
-		return filename[:idx]
-	}
-	return filename
-}