fix(files): change owner for the generated files

Fixes #4

.gitignore

@@ -13,5 +13,5 @@
 *.out
 
 # Dependency directories (remove the comment below to include it)
-# vendor/
+vendor/
 bin/

pkg/templater/files.go

@@ -7,6 +7,7 @@ import (
 
 	"fmt"
 	"os"
+	"os/user"
 
 	"forge.cadoles.com/pcaseiro/templatefile/pkg/utils"
 )
@@ -25,8 +26,32 @@ type ConfigFile struct {
 // Generate the configuration file from the template (hcl or json)
 func (cf *ConfigFile) Generate(root string, templateDir string, values []byte) error {
 	var template string
+
+	if utils.DryRun {
+		return nil
+	}
+
 	cf.TemplateDir = templateDir
 	dest := filepath.Join(root, cf.Destination)
+
+	// Get owner and group UID and GID
+	owner, err := user.Lookup(cf.Owner)
+	if err != nil {
+		return fmt.Errorf("Process templates failed with error: %v", err)
+	}
+	group, err := user.LookupGroup(cf.Group)
+	if err != nil {
+		return fmt.Errorf("Process templates failed with error: %v", err)
+	}
+	uid, err := strconv.Atoi(owner.Uid)
+	if err != nil {
+		return fmt.Errorf("Process templates failed with error: %v", err)
+	}
+	gid, err := strconv.Atoi(group.Gid)
+	if err != nil {
+		return fmt.Errorf("Process templates failed with error: %v", err)
+	}
+
 	intMod, err := strconv.ParseInt(cf.Mode, 8, 64)
 	if err != nil {
 		return (err)
@@ -45,6 +70,10 @@ func (cf *ConfigFile) Generate(root string, templateDir string, values []byte) e
 	if err != nil {
 		return fmt.Errorf("Process templates failed with error: %v", err)
 	}
+	if err = os.Chown(dest, uid, gid); err != nil {
+		return fmt.Errorf("Process templates failed with error: %v", err)
+	}
+
 	log.Printf("\tFile %s generated\n", dest)
 	return nil
 }

pkg/templater/system_users.go

@@ -3,6 +3,7 @@ package templater
 import (
 	"fmt"
 	"log"
+	"os/user"
 
 	"forge.cadoles.com/pcaseiro/templatefile/pkg/utils"
 )
@@ -14,17 +15,9 @@ type SystemUser struct {
 	Shell    string `json:"shell"`
 }
 
-func (su *SystemUser) exists() (bool, error) {
-	_, _, err := utils.RunSystemCommand("getent", "passwd", su.UserName)
-	if err != nil {
-		return false, err
-	}
-	return true, nil
-}
-
 func (su *SystemUser) Manage() error {
-	exist, _ := su.exists()
+	_, err := user.Lookup(su.UserName)
-	if exist {
+	if err == nil {
 		log.Printf("\tUser %s already exists", su.UserName)
 		return nil
 	}