github.com/dirkolbrich/hugo@v0.47.1/tpl/templates/init.go (about)

     1  // Copyright 2018 The Hugo Authors. All rights reserved.
     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  // http://www.apache.org/licenses/LICENSE-2.0
     7  //
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package partials
    15  
    16  import (
    17  	"github.com/gohugoio/hugo/deps"
    18  	"github.com/gohugoio/hugo/tpl/internal"
    19  )
    20  
    21  const name = "templates"
    22  
    23  func init() {
    24  	f := func(d *deps.Deps) *internal.TemplateFuncsNamespace {
    25  		ctx := New(d)
    26  
    27  		ns := &internal.TemplateFuncsNamespace{
    28  			Name:    name,
    29  			Context: func(args ...interface{}) interface{} { return ctx },
    30  		}
    31  
    32  		ns.AddMethodMapping(ctx.Exists,
    33  			nil,
    34  			[][2]string{{`{{ if (templates.Exists "partials/header.html") }}Yes!{{ end }}`, `Yes!`},
    35  				{`{{ if not (templates.Exists "partials/doesnotexist.html") }}No!{{ end }}`, `No!`},
    36  			},
    37  		)
    38  
    39  		return ns
    40  
    41  	}
    42  
    43  	internal.AddTemplateFuncsNamespace(f)
    44  }