refactor: adjust code layout

- adjust setting field order
- split `app` into smaller files

Author: marjune163

src/app/main.go

@@ -10,9 +10,7 @@ import (
 	"mjpclab.dev/ghfs/src/setting"
 	"mjpclab.dev/ghfs/src/tpl/defaultTheme"
 	"mjpclab.dev/ghfs/src/tpl/theme"
-	"os"
 	"path/filepath"
-	"strconv"
 	"time"
 )
 
@@ -130,19 +128,3 @@ func NewApp(params param.Params, setting *setting.Setting) (*App, []error) {
 		logFileMan: logFileMan,
 	}, nil
 }
-
-func writePidFile(pidFilename string) (errs []error) {
-	pidContent := strconv.Itoa(os.Getpid())
-	pidFile, err := os.OpenFile(pidFilename, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
-	if err != nil {
-		return []error{err}
-	}
-
-	_, err = pidFile.WriteString(pidContent)
-	errs = serverError.AppendError(errs, err)
-
-	err = pidFile.Close()
-	errs = serverError.AppendError(errs, err)
-
-	return
-}

src/app/pidFile.go

@@ -0,0 +1,23 @@
+package app
+
+import (
+	"mjpclab.dev/ghfs/src/serverError"
+	"os"
+	"strconv"
+)
+
+func writePidFile(pidFilePath string) (errs []error) {
+	pidContent := strconv.Itoa(os.Getpid())
+	pidFile, err := os.OpenFile(pidFilePath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
+	if err != nil {
+		return []error{err}
+	}
+
+	_, err = pidFile.WriteString(pidContent)
+	errs = serverError.AppendError(errs, err)
+
+	err = pidFile.Close()
+	errs = serverError.AppendError(errs, err)
+
+	return
+}

src/setting/main.go

@@ -6,16 +6,16 @@ import (
 )
 
 type Setting struct {
-	Quiet   bool
 	PidFile string
+	Quiet   bool
 }
 
 func ParseFromEnv() *Setting {
-	quiet := util.GetBoolEnv("GHFS_QUIET")
 	pidFile := os.Getenv("GHFS_PID_FILE")
+	quiet := util.GetBoolEnv("GHFS_QUIET")
 
 	return &Setting{
-		Quiet:   quiet,
 		PidFile: pidFile,
+		Quiet:   quiet,
 	}
 }