template: abslute path for template path

template/parse.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"path/filepath"
 	"sort"
 
 	"github.com/hashicorp/go-multierror"
@@ -317,6 +318,13 @@ func ParseFile(path string) (*Template, error) {
 		return nil, err
 	}
 
+	if !filepath.IsAbs(path) {
+		path, err = filepath.Abs(path)
+		if err != nil {
+			return nil, err
+		}
+	}
+
 	tpl.Path = path
 	return tpl, nil
 }

template/parse_test.go

 package template
 
 import (
+	"path/filepath"
 	"reflect"
 	"strings"
 	"testing"
@@ -306,7 +307,7 @@ func TestParse(t *testing.T) {
 	}
 
 	for _, tc := range cases {
-		path := fixtureDir(tc.File)
+		path, _ := filepath.Abs(fixtureDir(tc.File))
 		tpl, err := ParseFile(fixtureDir(tc.File))
 		if (err != nil) != tc.Err {
 			t.Fatalf("err: %s", err)