istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pkg/test/util/tmpl/parse.go (about)

     1  // Copyright Istio Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package tmpl
    16  
    17  import (
    18  	"fmt"
    19  	"text/template"
    20  
    21  	"github.com/Masterminds/sprig/v3"
    22  
    23  	"istio.io/istio/pkg/test"
    24  )
    25  
    26  // Parse the given template content.
    27  func Parse(tpl string) (*template.Template, error) {
    28  	t := template.New("test template")
    29  	return t.Funcs(sprig.TxtFuncMap()).Parse(tpl)
    30  }
    31  
    32  // ParseOrFail calls Parse and fails tests if it returns error.
    33  func ParseOrFail(t test.Failer, tpl string) *template.Template {
    34  	t.Helper()
    35  	tpl2, err := Parse(tpl)
    36  	if err != nil {
    37  		t.Fatalf("tmpl.ParseOrFail: %v", err)
    38  	}
    39  	return tpl2
    40  }
    41  
    42  // MustParse calls Parse and panics if it returns error.
    43  func MustParse(tpl string) *template.Template {
    44  	tpl2, err := Parse(tpl)
    45  	if err != nil {
    46  		panic(fmt.Sprintf("tmpl.MustParse: %v", err))
    47  	}
    48  	return tpl2
    49  }