mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-07 20:30:36 -05:00
392 lines
9 KiB
Go
392 lines
9 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package create provides functions to create new content.
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package create
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"strings"
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"github.com/gohugoio/hugo/hugofs/glob"
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"github.com/gohugoio/hugo/common/hexec"
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"github.com/gohugoio/hugo/common/paths"
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"github.com/pkg/errors"
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"github.com/gohugoio/hugo/hugofs/files"
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"github.com/gohugoio/hugo/hugofs"
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"github.com/gohugoio/hugo/helpers"
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"github.com/gohugoio/hugo/hugolib"
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"github.com/spf13/afero"
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)
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const (
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// DefaultArchetypeTemplateTemplate is the template used in 'hugo new site'
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// and the template we use as a fall back.
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DefaultArchetypeTemplateTemplate = `---
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title: "{{ replace .Name "-" " " | title }}"
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date: {{ .Date }}
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draft: true
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---
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`
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)
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// NewContent creates a new content file in h (or a full bundle if the archetype is a directory)
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// in targetPath.
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func NewContent(h *hugolib.HugoSites, kind, targetPath string) error {
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if h.BaseFs.Content.Dirs == nil {
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return errors.New("no existing content directory configured for this project")
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}
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cf := hugolib.NewContentFactory(h)
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if kind == "" {
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var err error
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kind, err = cf.SectionFromFilename(targetPath)
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if err != nil {
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return err
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}
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}
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b := &contentBuilder{
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archeTypeFs: h.PathSpec.BaseFs.Archetypes.Fs,
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sourceFs: h.PathSpec.Fs.Source,
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ps: h.PathSpec,
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h: h,
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cf: cf,
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kind: kind,
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targetPath: targetPath,
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}
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ext := paths.Ext(targetPath)
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b.setArcheTypeFilenameToUse(ext)
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withBuildLock := func() (string, error) {
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unlock, err := h.BaseFs.LockBuild()
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if err != nil {
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return "", fmt.Errorf("failed to acquire a build lock: %s", err)
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}
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defer unlock()
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if b.isDir {
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return "", b.buildDir()
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}
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if ext == "" {
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return "", errors.Errorf("failed to resolve %q to a archetype template", targetPath)
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}
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if !files.IsContentFile(b.targetPath) {
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return "", errors.Errorf("target path %q is not a known content format", b.targetPath)
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}
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return b.buildFile()
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}
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filename, err := withBuildLock()
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if err != nil {
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return err
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}
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if filename != "" {
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return b.openInEditorIfConfigured(filename)
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}
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return nil
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}
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type contentBuilder struct {
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archeTypeFs afero.Fs
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sourceFs afero.Fs
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ps *helpers.PathSpec
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h *hugolib.HugoSites
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cf hugolib.ContentFactory
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// Builder state
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archetypeFilename string
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targetPath string
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kind string
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isDir bool
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dirMap archetypeMap
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}
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func (b *contentBuilder) buildDir() error {
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// Split the dir into content files and the rest.
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if err := b.mapArcheTypeDir(); err != nil {
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return err
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}
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var contentTargetFilenames []string
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var baseDir string
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for _, fi := range b.dirMap.contentFiles {
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targetFilename := filepath.Join(b.targetPath, strings.TrimPrefix(fi.Meta().Path, b.archetypeFilename))
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abs, err := b.cf.CreateContentPlaceHolder(targetFilename)
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if err != nil {
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return err
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}
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if baseDir == "" {
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baseDir = strings.TrimSuffix(abs, targetFilename)
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}
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contentTargetFilenames = append(contentTargetFilenames, abs)
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}
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var contentInclusionFilter *glob.FilenameFilter
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if !b.dirMap.siteUsed {
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// We don't need to build everything.
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contentInclusionFilter = glob.NewFilenameFilterForInclusionFunc(func(filename string) bool {
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filename = strings.TrimPrefix(filename, string(os.PathSeparator))
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for _, cn := range contentTargetFilenames {
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if strings.Contains(cn, filename) {
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return true
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}
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}
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return false
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})
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}
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if err := b.h.Build(hugolib.BuildCfg{NoBuildLock: true, SkipRender: true, ContentInclusionFilter: contentInclusionFilter}); err != nil {
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return err
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}
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for i, filename := range contentTargetFilenames {
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if err := b.applyArcheType(filename, b.dirMap.contentFiles[i].Meta().Path); err != nil {
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return err
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}
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}
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// Copy the rest as is.
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for _, f := range b.dirMap.otherFiles {
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meta := f.Meta()
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filename := meta.Path
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in, err := meta.Open()
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if err != nil {
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return errors.Wrap(err, "failed to open non-content file")
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}
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targetFilename := filepath.Join(baseDir, b.targetPath, strings.TrimPrefix(filename, b.archetypeFilename))
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targetDir := filepath.Dir(targetFilename)
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if err := b.sourceFs.MkdirAll(targetDir, 0o777); err != nil && !os.IsExist(err) {
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return errors.Wrapf(err, "failed to create target directory for %q", targetDir)
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}
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out, err := b.sourceFs.Create(targetFilename)
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if err != nil {
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return err
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}
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_, err = io.Copy(out, in)
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if err != nil {
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return err
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}
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in.Close()
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out.Close()
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}
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b.h.Log.Printf("Content dir %q created", filepath.Join(baseDir, b.targetPath))
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return nil
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}
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func (b *contentBuilder) buildFile() (string, error) {
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contentPlaceholderAbsFilename, err := b.cf.CreateContentPlaceHolder(b.targetPath)
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if err != nil {
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return "", err
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}
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usesSite, err := b.usesSiteVar(b.archetypeFilename)
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if err != nil {
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return "", err
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}
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var contentInclusionFilter *glob.FilenameFilter
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if !usesSite {
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// We don't need to build everything.
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contentInclusionFilter = glob.NewFilenameFilterForInclusionFunc(func(filename string) bool {
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filename = strings.TrimPrefix(filename, string(os.PathSeparator))
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return strings.Contains(contentPlaceholderAbsFilename, filename)
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})
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}
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if err := b.h.Build(hugolib.BuildCfg{NoBuildLock: true, SkipRender: true, ContentInclusionFilter: contentInclusionFilter}); err != nil {
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return "", err
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}
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if err := b.applyArcheType(contentPlaceholderAbsFilename, b.archetypeFilename); err != nil {
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return "", err
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}
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b.h.Log.Printf("Content %q created", contentPlaceholderAbsFilename)
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return contentPlaceholderAbsFilename, nil
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}
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func (b *contentBuilder) setArcheTypeFilenameToUse(ext string) {
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var pathsToCheck []string
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if b.kind != "" {
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pathsToCheck = append(pathsToCheck, b.kind+ext)
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}
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pathsToCheck = append(pathsToCheck, "default"+ext)
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for _, p := range pathsToCheck {
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fi, err := b.archeTypeFs.Stat(p)
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if err == nil {
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b.archetypeFilename = p
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b.isDir = fi.IsDir()
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return
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}
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}
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}
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func (b *contentBuilder) applyArcheType(contentFilename, archetypeFilename string) error {
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p := b.h.GetContentPage(contentFilename)
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if p == nil {
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panic(fmt.Sprintf("[BUG] no Page found for %q", contentFilename))
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}
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f, err := b.sourceFs.Create(contentFilename)
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if err != nil {
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return err
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}
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defer f.Close()
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if archetypeFilename == "" {
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return b.cf.AppplyArchetypeTemplate(f, p, b.kind, DefaultArchetypeTemplateTemplate)
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}
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return b.cf.AppplyArchetypeFilename(f, p, b.kind, archetypeFilename)
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}
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func (b *contentBuilder) mapArcheTypeDir() error {
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var m archetypeMap
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walkFn := func(path string, fi hugofs.FileMetaInfo, err error) error {
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if err != nil {
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return err
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}
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if fi.IsDir() {
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return nil
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}
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fil := fi.(hugofs.FileMetaInfo)
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if files.IsContentFile(path) {
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m.contentFiles = append(m.contentFiles, fil)
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if !m.siteUsed {
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m.siteUsed, err = b.usesSiteVar(path)
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if err != nil {
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return err
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}
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}
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return nil
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}
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m.otherFiles = append(m.otherFiles, fil)
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return nil
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}
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walkCfg := hugofs.WalkwayConfig{
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WalkFn: walkFn,
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Fs: b.archeTypeFs,
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Root: b.archetypeFilename,
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}
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w := hugofs.NewWalkway(walkCfg)
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if err := w.Walk(); err != nil {
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return errors.Wrapf(err, "failed to walk archetype dir %q", b.archetypeFilename)
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}
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b.dirMap = m
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return nil
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}
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func (b *contentBuilder) openInEditorIfConfigured(filename string) error {
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editor := b.h.Cfg.GetString("newContentEditor")
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if editor == "" {
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return nil
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}
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editorExec := strings.Fields(editor)[0]
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editorFlags := strings.Fields(editor)[1:]
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var args []interface{}
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for _, editorFlag := range editorFlags {
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args = append(args, editorFlag)
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}
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args = append(
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args,
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filename,
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hexec.WithStdin(os.Stdin),
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hexec.WithStderr(os.Stderr),
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hexec.WithStdout(os.Stdout),
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)
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b.h.Log.Printf("Editing %q with %q ...\n", filename, editorExec)
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cmd, err := b.h.Deps.ExecHelper.New(editorExec, args...)
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if err != nil {
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return err
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}
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return cmd.Run()
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}
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func (b *contentBuilder) usesSiteVar(filename string) (bool, error) {
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if filename == "" {
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return false, nil
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}
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bb, err := afero.ReadFile(b.archeTypeFs, filename)
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if err != nil {
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return false, errors.Wrap(err, "failed to open archetype file")
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}
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return bytes.Contains(bb, []byte(".Site")) || bytes.Contains(bb, []byte("site.")), nil
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}
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type archetypeMap struct {
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// These needs to be parsed and executed as Go templates.
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contentFiles []hugofs.FileMetaInfo
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// These are just copied to destination.
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otherFiles []hugofs.FileMetaInfo
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// If the templates needs a fully built site. This can potentially be
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// expensive, so only do when needed.
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siteUsed bool
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}
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