templates: Add arguments to .Include

caddyhttp/gzip/gzip_test.go

@@ -104,7 +104,7 @@ func nextFunc(shouldGzip bool) httpserver.Handler {
 				return 0, fmt.Errorf("ResponseWriter should be gzipResponseWriter, found %T", w)
 			}
 			if strings.Contains(w.Header().Get("Content-Type"), "application/x-gzip") {
-				return 0, fmt.Errorf("Content type should not be gzip.")
+				return 0, fmt.Errorf("Content-Type should not be gzip")
 			}
 			return 0, nil
 		}

caddyhttp/httpserver/context.go

@@ -12,8 +12,9 @@ import (
 	"text/template"
 	"time"
 
-	"github.com/russross/blackfriday"
 	"os"
+
+	"github.com/russross/blackfriday"
 )
 
 // This file contains the context and functions available for
@@ -24,10 +25,12 @@ type Context struct {
 	Root http.FileSystem
 	Req  *http.Request
 	URL  *url.URL
+	Args []interface{} // defined by arguments to .Include
 }
 
 // Include returns the contents of filename relative to the site root.
-func (c Context) Include(filename string) (string, error) {
+func (c Context) Include(filename string, args ...interface{}) (string, error) {
+	c.Args = args
 	return ContextInclude(filename, c, c.Root)
 }
 

caddyhttp/httpserver/context_test.go

@@ -30,6 +30,7 @@ func TestInclude(t *testing.T) {
 	}()
 
 	tests := []struct {
+		args                 []interface{}
 		fileContent          string
 		expectedContent      string
 		shouldErr            bool
@@ -42,7 +43,15 @@ func TestInclude(t *testing.T) {
 			shouldErr:            false,
 			expectedErrorContent: "",
 		},
-		// Test 1 - failure on template.Parse
+		// Test 1 - all good, with args
+		{
+			args:                 []interface{}{"hello", 5},
+			fileContent:          `str1 {{ .Root }} str2 {{index .Args 0}} {{index .Args 1}}`,
+			expectedContent:      fmt.Sprintf("str1 %s str2 %s %d", context.Root, "hello", 5),
+			shouldErr:            false,
+			expectedErrorContent: "",
+		},
+		// Test 2 - failure on template.Parse
 		{
 			fileContent:          `str1 {{ .Root } str2`,
 			expectedContent:      "",
@@ -73,7 +82,7 @@ func TestInclude(t *testing.T) {
 			t.Fatal(testPrefix+"Failed to create test file. Error was: %v", err)
 		}
 
-		content, err := context.Include(inputFilename)
+		content, err := context.Include(inputFilename, test.args...)
 		if err != nil {
 			if !test.shouldErr {
 				t.Errorf(testPrefix+"Expected no error, found [%s]", test.expectedErrorContent, err.Error())