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// Copyright 2017 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package create
import (
"bytes"
"fmt"
"path/filepath"
"strings"
"time"
"github.com/pkg/errors"
"github.com/gohugoio/hugo/helpers"
"github.com/gohugoio/hugo/source"
"github.com/gohugoio/hugo/hugolib"
"github.com/gohugoio/hugo/tpl"
"github.com/spf13/afero"
)
// ArchetypeFileData represents the data available to an archetype template.
type ArchetypeFileData struct {
// The archetype content type, either given as --kind option or extracted
// from the target path's section, i.e. "blog/mypost.md" will resolve to
// "blog".
Type string
// The current date and time as a RFC3339 formatted string, suitable for use in front matter.
Date string
// The Site, fully equipped with all the pages etc. Note: This will only be set if it is actually
// used in the archetype template. Also, if this is a multilingual setup,
// this site is the site that best matches the target content file, based
// on the presence of language code in the filename.
Site *hugolib.SiteInfo
// Name will in most cases be the same as TranslationBaseName, e.g. "my-post".
// But if that value is "index" (bundles), the Name is instead the owning folder.
// This is the value you in most cases would want to use to construct the title in your
// archetype template.
Name string
// The target content file. Note that the .Content will be empty, as that
// has not been created yet.
source.File
}
const (
// ArchetypeTemplateTemplate is used as initial template when adding an archetype template.
ArchetypeTemplateTemplate = `---
title: "{{ replace .Name "-" " " | title }}"
date: {{ .Date }}
draft: true
---
`
)
var (
archetypeShortcodeReplacementsPre = strings.NewReplacer(
"{{<", "{x{<",
"{{%", "{x{%",
">}}", ">}x}",
"%}}", "%}x}")
archetypeShortcodeReplacementsPost = strings.NewReplacer(
"{x{<", "{{<",
"{x{%", "{{%",
">}x}", ">}}",
"%}x}", "%}}")
)
func executeArcheTypeAsTemplate(s *hugolib.Site, name, kind, targetPath, archetypeFilename string) ([]byte, error) {
var (
archetypeContent []byte
archetypeTemplate []byte
err error
)
f, err := s.SourceSpec.NewFileInfoFrom(targetPath, targetPath)
if err != nil {
return nil, err
}
if name == "" {
name = f.TranslationBaseName()
if name == "index" || name == "_index" {
// Page bundles; the directory name will hopefully have a better name.
dir := strings.TrimSuffix(f.Dir(), helpers.FilePathSeparator)
_, name = filepath.Split(dir)
}
}
data := ArchetypeFileData{
Type: kind,
Date: time.Now().Format(time.RFC3339),
Name: name,
File: f,
Site: s.Info,
}
if archetypeFilename == "" {
// TODO(bep) archetype revive the issue about wrong tpl funcs arg order
archetypeTemplate = []byte(ArchetypeTemplateTemplate)
} else {
archetypeTemplate, err = afero.ReadFile(s.BaseFs.Archetypes.Fs, archetypeFilename)
if err != nil {
return nil, fmt.Errorf("failed to read archetype file %s", err)
}
}
// The archetype template may contain shortcodes, and these does not play well
// with the Go templates. Need to set some temporary delimiters.
archetypeTemplate = []byte(archetypeShortcodeReplacementsPre.Replace(string(archetypeTemplate)))
// Reuse the Hugo template setup to get the template funcs properly set up.
templateHandler := s.Deps.Tmpl().(tpl.TemplateManager)
templateName := helpers.Filename(archetypeFilename)
if err := templateHandler.AddTemplate("_text/"+templateName, string(archetypeTemplate)); err != nil {
return nil, errors.Wrapf(err, "Failed to parse archetype file %q:", archetypeFilename)
}
templ, _ := templateHandler.Lookup(templateName)
var buff bytes.Buffer
if err := templateHandler.Execute(templ, &buff, data); err != nil {
return nil, errors.Wrapf(err, "Failed to process archetype file %q:", archetypeFilename)
}
archetypeContent = []byte(archetypeShortcodeReplacementsPost.Replace(buff.String()))
return archetypeContent, nil
}
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