code cleaned up

Author: nProgrammer

controllers/errorHandling.go

@@ -0,0 +1,9 @@
+package controllers
+
+import "fmt"
+
+func ErrorHandle(err error) {
+	if err != nil {
+		fmt.Println(err)
+	}
+}

controllers/functions.go

@@ -1,6 +1,10 @@
 package controllers
 
 import (
+	"encoding/json"
+	"fmt"
+	"godemon/models"
+	"io/ioutil"
 	"os"
 	"os/exec"
 	"time"
@@ -28,3 +32,28 @@ func TimeLog() {
 	cmd.Stderr = os.Stderr
 	cmd.Run()
 }
+
+func ProgramStarting(cnf string, filepath string, modOrFile string) (string, string) {
+	if cnf == "cmd" {
+		filepath = os.Args[2]
+		modOrFile = os.Args[3]
+	} else if cnf == "cnf" {
+		command := os.Args[2]
+		jsonFile, err := os.Open("godemon-cnf.json")
+		ErrorHandle(err)
+		defer jsonFile.Close()
+		byteValue, err := ioutil.ReadAll(jsonFile)
+		ErrorHandle(err)
+		var commands models.Commands
+		json.Unmarshal(byteValue, &commands)
+		for i := 0; i < len(commands.Commands); i++ {
+			if command == commands.Commands[i].Name {
+				fmt.Println(commands.Commands[i].Path)
+				fmt.Println(commands.Commands[i].Option)
+				filepath = commands.Commands[i].Path
+				modOrFile = commands.Commands[i].Option
+			}
+		}
+	}
+	return filepath, modOrFile
+}

main.go

@@ -1,11 +1,8 @@
 package main
 
 import (
-	"encoding/json"
 	"fmt"
 	"godemon/controllers"
-	"godemon/models"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"time"
@@ -16,24 +13,20 @@ func watch(fileordirPath string) error {
 	if err != nil {
 		return err
 	}
-
 	for {
 		stat, err := os.Stat(fileordirPath)
 		if err != nil {
 			return err
 		}
-
 		if stat.Size() != initialStat.Size() || stat.ModTime() != initialStat.ModTime() {
 			cmd := exec.Command("killall", "-9", "app-godemon-app-godemon-tmp-generated")
 			cmd.Stdout = os.Stdout
 			cmd.Stderr = os.Stderr
 			cmd.Run()
 			break
 		}
-
 		time.Sleep(1 * time.Second)
 	}
-
 	return nil
 }
 
@@ -42,37 +35,17 @@ func main() {
 	cnf := os.Args[1]
 	var filepath string
 	var modOrFile string
-	if cnf == "cmd" {
-		filepath = os.Args[2]
-		modOrFile = os.Args[3]
-	} else if cnf == "cnf" {
-		command := os.Args[2]
-		jsonFile, _ := os.Open("godemon-cnf.json")
-		byteValue, _ := ioutil.ReadAll(jsonFile)
-		var commands models.Commands
-		json.Unmarshal(byteValue, &commands)
-		for i := 0; i < len(commands.Commands); i++ {
-			if command == commands.Commands[i].Name {
-				fmt.Println(commands.Commands[i].Path)
-				fmt.Println(commands.Commands[i].Option)
-				filepath = commands.Commands[i].Path
-				modOrFile = commands.Commands[i].Option
-			}
-		}
-		jsonFile.Close()
-	}
+	filepath, modOrFile = controllers.ProgramStarting(cnf, filepath, modOrFile)
 	fmt.Println(filepath)
 	for true {
 		go func(doneChan chan bool) {
 			defer func() {
 				doneChan <- true
 			}()
-
 			err := watch(filepath)
 			if err != nil {
 				fmt.Println(err)
 			}
-
 			fmt.Println("File has been changed")
 			if modOrFile == "mod" {
 				os.Chdir(filepath)

readme.md

@@ -12,7 +12,7 @@ First of all you need to build your version:
 
 ### Using default `./godemon`
 Now you can move file `godemon` to folder with your go project and 
-start it using command: `./godemon <fileOrDir> <fileOrModule>`.
+start it using command: `./godemon cnf <command>` or `./godemon cmd <fileOrDir> <fileOrModule>`.
 In first argument you're giving godemon the path to project, and in second
 argument you're choosing is it simple go file or go module - if module pass
 argument - `mod` , if file pass argument - `file`
@@ -30,4 +30,21 @@ argument - `mod` , if file pass argument - `file`
 
 ### Installing `godemon` from `godemon.exe`
 1. Download `godemon.exe`
-2. Add path to `godemon.exe` to system PATH
+2. Add path to `godemon.exe` to system PATH
+
+### How to work with configuration json file
+1. Create in project file `godemon-cnf.json`
+2. Create configuration of commands - sample code: 
+
+```
+{
+    "commands": [
+        {
+            "name": "run",
+            "path": "/home/nwagner/Desktop/godemon/api/",
+            "file": "mod"
+        }
+    ]
+}
+```
+3. Now use command: `godemon cnf <command-name>`