Merge pull request #51 from fayccal/panic_fix

Fix panic error when file is not found

Author: aligator

cmd/goslice/main.go

@@ -2,11 +2,12 @@ package main
 
 import (
 	"fmt"
-	"github.com/aligator/goslice"
-	"github.com/aligator/goslice/data"
 	"io"
 	"os"
 
+	"github.com/aligator/goslice"
+	"github.com/aligator/goslice/data"
+
 	flag "github.com/spf13/pflag"
 )
 

reader/reader.go

@@ -1,6 +1,9 @@
 package reader
 
 import (
+	"errors"
+	"os"
+
 	"github.com/aligator/goslice/data"
 	"github.com/aligator/goslice/handler"
 	"github.com/hschendel/stl"
@@ -110,6 +113,9 @@ func Reader(options *data.Options) handler.ModelReader {
 
 func (r reader) Read(filename string) (data.Model, error) {
 	model := &model{}
+	if _, err := os.Stat(filename); errors.Is(err, os.ErrNotExist) {
+		return model, os.ErrNotExist
+	}
 	stl.CopyFile(filename, model)
 	return model, nil
 }