added ability to set custom template delims

Signed-off-by: Andrew Chubatiuk <[email protected]>

fn.go

@@ -57,7 +57,7 @@ func (f *Function) RunFunction(_ context.Context, req *fnv1beta1.RunFunctionRequ
 		return rsp, nil
 	}
 
-	tmpl, err := GetNewTemplateWithFunctionMaps().Parse(tg.GetTemplates())
+	tmpl, err := GetNewTemplateWithFunctionMaps(in).Parse(tg.GetTemplates())
 	if err != nil {
 		response.Fatal(rsp, errors.Wrap(err, "invalid function input: cannot parse the provided templates"))
 		return rsp, nil

function_maps.go

@@ -6,6 +6,7 @@ import (
 	"time"
 
 	sprig "github.com/Masterminds/sprig/v3"
+	"github.com/crossplane-contrib/function-go-templating/input/v1beta1"
 )
 
 var funcMaps = []template.FuncMap{
@@ -18,8 +19,14 @@ var funcMaps = []template.FuncMap{
 	},
 }
 
-func GetNewTemplateWithFunctionMaps() *template.Template {
-	tpl := template.New("manifests")
+func GetNewTemplateWithFunctionMaps(in *v1beta1.GoTemplate) *template.Template {
+	if in.LeftDelims == "" {
+		in.LeftDelims = "{{"
+	}
+	if in.RightDelims == "" {
+		in.RightDelims = "}}"
+	}
+	tpl := template.New("manifests").Delims(in.LeftDelims, in.RightDelims)
 
 	for _, f := range funcMaps {
 		tpl.Funcs(f)

input/v1beta1/input.go

@@ -19,6 +19,10 @@ type GoTemplate struct {
 	metav1.TypeMeta   `json:",inline"`
 	metav1.ObjectMeta `json:"metadata,omitempty"`
 
+	// Template start characters
+	LeftDelims string `json:"leftDelims,omitempty"`
+	// Template end characters
+	RightDelims string `json:"rightDelims,omitempty"`
 	// Source specifies the different types of input sources that can be used with this function
 	Source TemplateSource `json:"source"`
 	// Inline is the inline form input of the templates

package/input/gotemplating.fn.crossplane.io_gotemplates.yaml

@@ -43,8 +43,14 @@ spec:
               object represents. Servers may infer this from the endpoint the client
               submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
             type: string
+          leftDelims:
+            description: Template start characters
+            type: string
           metadata:
             type: object
+          rightDelims:
+            description: Template end characters
+            type: string
           source:
             description: Source specifies the different types of input sources that
               can be used with this function