Add checking UID and GID upon 'ducker build'. Also overrides UID or G… (

#26)

* Add checking UID and GID upon 'ducker build'. Also overrides UID or GID when '--build-arg UID' or '--build-arg GID' is presented in config.

* Add checking '--build-arg UID' or '--build-arg GID' in CLI arguments

VERSION

@@ -1 +1 @@
-0.1.6
+0.1.7

cmd/ducker/ducker.go

@@ -60,10 +60,24 @@ func dockerBuild(ctx *cli.Context, dockerTag string) {
 	localConfig := readDefaultLocalConfig()
 
 	buildArgs := ctx.String("args")
+  localConfigBuildArgs := localConfig.GetBuildArg()
+
+  // Check if localConfig or buildArgs includes --build-arg UID
+  uidArgs := ""
+  if !strings.Contains(localConfigBuildArgs, "--build-arg UID") && 
+      !strings.Contains(buildArgs, "--build-arg UID") {
+    uidArgs += "--build-arg UID=" + getTerminalCmdOut("id", "-u")
+  }
+  // Check if localConfig or buildArgs includes --build-arg GID
+  if !strings.Contains(localConfigBuildArgs, "--build-arg GID") && 
+      !strings.Contains(buildArgs, "--build-arg GID") {
+    uidArgs += " --build-arg GID=" + getTerminalCmdOut("id", "-g")
+  }
 
 	buildCmd := "docker build . -t " + dockerTag
 	buildCmd += " -f " + dockerFilePath
-	buildCmd += " " + localConfig.GetBuildArg()
+	buildCmd += " " + localConfigBuildArgs
+  buildCmd += " " + uidArgs
 
 	if buildArgs != "" {
 		buildCmd += " " + buildArgs

cmd/ducker/local_config.go

@@ -32,8 +32,6 @@ func getDefaultLocalConfig() LocalConfig {
 			"--network host",
 		},
 		Build_Arg: []string{
-			"--build-arg UID=" + getTerminalCmdOut("id", "-u"),
-			"--build-arg GID=" + getTerminalCmdOut("id", "-g"),
 		},
     Default_Shell: "zsh",
 		Mount_PWD: true,