github.com/fighterlyt/hugo@v0.47.1/tpl/os/init.go (about)

     1  // Copyright 2017 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 os
    15  
    16  import (
    17  	"github.com/gohugoio/hugo/deps"
    18  	"github.com/gohugoio/hugo/tpl/internal"
    19  )
    20  
    21  const name = "os"
    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.Getenv,
    33  			[]string{"getenv"},
    34  			[][2]string{},
    35  		)
    36  
    37  		ns.AddMethodMapping(ctx.ReadDir,
    38  			[]string{"readDir"},
    39  			[][2]string{
    40  				{`{{ range (readDir "files") }}{{ .Name }}{{ end }}`, "README.txt"},
    41  			},
    42  		)
    43  
    44  		ns.AddMethodMapping(ctx.ReadFile,
    45  			[]string{"readFile"},
    46  			[][2]string{
    47  				{`{{ readFile "files/README.txt" }}`, `Hugo Rocks!`},
    48  			},
    49  		)
    50  
    51  		ns.AddMethodMapping(ctx.FileExists,
    52  			[]string{"fileExists"},
    53  			[][2]string{
    54  				{`{{ fileExists "foo.txt" }}`, `false`},
    55  			},
    56  		)
    57  
    58  		return ns
    59  
    60  	}
    61  
    62  	internal.AddTemplateFuncsNamespace(f)
    63  }