hugo/create/content.go

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// Copyright 2019 The Hugo Authors. All rights reserved.
//
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// 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
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// 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.
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// Package create provides functions to create new content.
package create
import (
"bytes"
"io"
"os"
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"path/filepath"
"strings"
"github.com/gohugoio/hugo/common/paths"
"github.com/pkg/errors"
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"github.com/gohugoio/hugo/common/hexec"
"github.com/gohugoio/hugo/hugofs/files"
"github.com/gohugoio/hugo/hugofs"
"github.com/gohugoio/hugo/helpers"
"github.com/gohugoio/hugo/hugolib"
"github.com/spf13/afero"
jww "github.com/spf13/jwalterweatherman"
)
// NewContent creates a new content file in the content directory based upon the
// given kind, which is used to lookup an archetype.
func NewContent(
sites *hugolib.HugoSites, kind, targetPath string) error {
targetPath = filepath.Clean(targetPath)
ext := paths.Ext(targetPath)
ps := sites.PathSpec
archetypeFs := ps.BaseFs.SourceFilesystems.Archetypes.Fs
sourceFs := ps.Fs.Source
jww.INFO.Printf("attempting to create %q of %q of ext %q", targetPath, kind, ext)
archetypeFilename, isDir := findArchetype(ps, kind, ext)
contentPath, s := resolveContentPath(sites, sourceFs, targetPath)
if isDir {
langFs, err := hugofs.NewLanguageFs(sites.LanguageSet(), archetypeFs)
if err != nil {
return err
}
cm, err := mapArcheTypeDir(ps, langFs, archetypeFilename)
if err != nil {
return err
}
if cm.siteUsed {
if err := sites.Build(hugolib.BuildCfg{SkipRender: true}); err != nil {
return err
}
}
name := filepath.Base(targetPath)
return newContentFromDir(archetypeFilename, sites, sourceFs, cm, name, contentPath)
}
// Building the sites can be expensive, so only do it if really needed.
siteUsed := false
if archetypeFilename != "" {
var err error
siteUsed, err = usesSiteVar(archetypeFs, archetypeFilename)
if err != nil {
return err
}
}
if siteUsed {
if err := sites.Build(hugolib.BuildCfg{SkipRender: true}); err != nil {
return err
}
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}
content, err := executeArcheTypeAsTemplate(s, "", kind, targetPath, archetypeFilename)
if err != nil {
return err
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}
if err := helpers.SafeWriteToDisk(contentPath, bytes.NewReader(content), s.Fs.Source); err != nil {
return err
}
jww.FEEDBACK.Println(contentPath, "created")
editor := s.Cfg.GetString("newContentEditor")
if editor != "" {
jww.FEEDBACK.Printf("Editing %s with %q ...\n", targetPath, editor)
editorCmd := append(strings.Fields(editor), contentPath)
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cmd, err := hexec.SafeCommand(editorCmd[0], editorCmd[1:]...)
if err != nil {
return err
}
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
}
return nil
}
func targetSite(sites *hugolib.HugoSites, fi hugofs.FileMetaInfo) *hugolib.Site {
for _, s := range sites.Sites {
if fi.Meta().Lang == s.Language().Lang {
return s
}
}
return sites.Sites[0]
}
func newContentFromDir(
archetypeDir string,
sites *hugolib.HugoSites,
targetFs afero.Fs,
cm archetypeMap, name, targetPath string) error {
for _, f := range cm.otherFiles {
meta := f.Meta()
filename := meta.Path
// Just copy the file to destination.
in, err := meta.Open()
if err != nil {
return errors.Wrap(err, "failed to open non-content file")
}
targetFilename := filepath.Join(targetPath, strings.TrimPrefix(filename, archetypeDir))
targetDir := filepath.Dir(targetFilename)
if err := targetFs.MkdirAll(targetDir, 0777); err != nil && !os.IsExist(err) {
return errors.Wrapf(err, "failed to create target directory for %s:", targetDir)
}
out, err := targetFs.Create(targetFilename)
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if err != nil {
return err
}
_, err = io.Copy(out, in)
if err != nil {
return err
}
in.Close()
out.Close()
}
for _, f := range cm.contentFiles {
filename := f.Meta().Path
s := targetSite(sites, f)
targetFilename := filepath.Join(targetPath, strings.TrimPrefix(filename, archetypeDir))
content, err := executeArcheTypeAsTemplate(s, name, archetypeDir, targetFilename, filename)
if err != nil {
return errors.Wrap(err, "failed to execute archetype template")
}
if err := helpers.SafeWriteToDisk(targetFilename, bytes.NewReader(content), targetFs); err != nil {
return errors.Wrap(err, "failed to save results")
}
}
jww.FEEDBACK.Println(targetPath, "created")
return nil
}
type archetypeMap struct {
// These needs to be parsed and executed as Go templates.
contentFiles []hugofs.FileMetaInfo
// These are just copied to destination.
otherFiles []hugofs.FileMetaInfo
// If the templates needs a fully built site. This can potentially be
// expensive, so only do when needed.
siteUsed bool
}
func mapArcheTypeDir(
ps *helpers.PathSpec,
fs afero.Fs,
archetypeDir string) (archetypeMap, error) {
var m archetypeMap
walkFn := func(path string, fi hugofs.FileMetaInfo, err error) error {
if err != nil {
return err
}
if fi.IsDir() {
return nil
}
fil := fi.(hugofs.FileMetaInfo)
if files.IsContentFile(path) {
m.contentFiles = append(m.contentFiles, fil)
if !m.siteUsed {
m.siteUsed, err = usesSiteVar(fs, path)
if err != nil {
return err
}
}
return nil
}
m.otherFiles = append(m.otherFiles, fil)
return nil
}
walkCfg := hugofs.WalkwayConfig{
WalkFn: walkFn,
Fs: fs,
Root: archetypeDir,
}
w := hugofs.NewWalkway(walkCfg)
if err := w.Walk(); err != nil {
return m, errors.Wrapf(err, "failed to walk archetype dir %q", archetypeDir)
}
return m, nil
}
func usesSiteVar(fs afero.Fs, filename string) (bool, error) {
f, err := fs.Open(filename)
if err != nil {
return false, errors.Wrap(err, "failed to open archetype file")
}
defer f.Close()
return helpers.ReaderContains(f, []byte(".Site")), nil
}
// Resolve the target content path.
func resolveContentPath(sites *hugolib.HugoSites, fs afero.Fs, targetPath string) (string, *hugolib.Site) {
targetDir := filepath.Dir(targetPath)
first := sites.Sites[0]
var (
s *hugolib.Site
siteContentDir string
)
// Try the filename: my-post.en.md
for _, ss := range sites.Sites {
if strings.Contains(targetPath, "."+ss.Language().Lang+".") {
s = ss
break
}
}
var dirLang string
for _, dir := range sites.BaseFs.Content.Dirs {
meta := dir.Meta()
contentDir := meta.Filename
if !strings.HasSuffix(contentDir, helpers.FilePathSeparator) {
contentDir += helpers.FilePathSeparator
}
if strings.HasPrefix(targetPath, contentDir) {
siteContentDir = contentDir
dirLang = meta.Lang
break
}
}
if s == nil && dirLang != "" {
for _, ss := range sites.Sites {
if ss.Lang() == dirLang {
s = ss
break
}
}
}
if s == nil {
s = first
}
if targetDir != "" && targetDir != "." {
exists, _ := helpers.Exists(targetDir, fs)
if exists {
return targetPath, s
}
}
if siteContentDir == "" {
}
if siteContentDir != "" {
pp := filepath.Join(siteContentDir, strings.TrimPrefix(targetPath, siteContentDir))
return s.PathSpec.AbsPathify(pp), s
} else {
var contentDir string
for _, dir := range sites.BaseFs.Content.Dirs {
contentDir = dir.Meta().Filename
if dir.Meta().Lang == s.Lang() {
break
}
}
return s.PathSpec.AbsPathify(filepath.Join(contentDir, targetPath)), s
}
}
Add support for theme composition and inheritance This commit adds support for theme composition and inheritance in Hugo. With this, it helps thinking about a theme as a set of ordered components: ```toml theme = ["my-shortcodes", "base-theme", "hyde"] ``` The theme definition example above in `config.toml` creates a theme with the 3 components with presedence from left to right. So, Hugo will, for any given file, data entry etc., look first in the project, and then in `my-shortcode`, `base-theme` and lastly `hyde`. Hugo uses two different algorithms to merge the filesystems, depending on the file type: * For `i18n` and `data` files, Hugo merges deeply using the translation id and data key inside the files. * For `static`, `layouts` (templates) and `archetypes` files, these are merged on file level. So the left-most file will be chosen. The name used in the `theme` definition above must match a folder in `/your-site/themes`, e.g. `/your-site/themes/my-shortcodes`. There are plans to improve on this and get a URL scheme so this can be resolved automatically. Also note that a component that is part of a theme can have its own configuration file, e.g. `config.toml`. There are currently some restrictions to what a theme component can configure: * `params` (global and per language) * `menu` (global and per language) * `outputformats` and `mediatypes` The same rules apply here: The left-most param/menu etc. with the same ID will win. There are some hidden and experimental namespace support in the above, which we will work to improve in the future, but theme authors are encouraged to create their own namespaces to avoid naming conflicts. A final note: Themes/components can also have a `theme` definition in their `config.toml` and similar, which is the "inheritance" part of this commit's title. This is currently not supported by the Hugo theme site. We will have to wait for some "auto dependency" feature to be implemented for that to happen, but this can be a powerful feature if you want to create your own theme-variant based on others. Fixes #4460 Fixes #4450
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// FindArchetype takes a given kind/archetype of content and returns the path
// to the archetype in the archetype filesystem, blank if none found.
func findArchetype(ps *helpers.PathSpec, kind, ext string) (outpath string, isDir bool) {
Add support for theme composition and inheritance This commit adds support for theme composition and inheritance in Hugo. With this, it helps thinking about a theme as a set of ordered components: ```toml theme = ["my-shortcodes", "base-theme", "hyde"] ``` The theme definition example above in `config.toml` creates a theme with the 3 components with presedence from left to right. So, Hugo will, for any given file, data entry etc., look first in the project, and then in `my-shortcode`, `base-theme` and lastly `hyde`. Hugo uses two different algorithms to merge the filesystems, depending on the file type: * For `i18n` and `data` files, Hugo merges deeply using the translation id and data key inside the files. * For `static`, `layouts` (templates) and `archetypes` files, these are merged on file level. So the left-most file will be chosen. The name used in the `theme` definition above must match a folder in `/your-site/themes`, e.g. `/your-site/themes/my-shortcodes`. There are plans to improve on this and get a URL scheme so this can be resolved automatically. Also note that a component that is part of a theme can have its own configuration file, e.g. `config.toml`. There are currently some restrictions to what a theme component can configure: * `params` (global and per language) * `menu` (global and per language) * `outputformats` and `mediatypes` The same rules apply here: The left-most param/menu etc. with the same ID will win. There are some hidden and experimental namespace support in the above, which we will work to improve in the future, but theme authors are encouraged to create their own namespaces to avoid naming conflicts. A final note: Themes/components can also have a `theme` definition in their `config.toml` and similar, which is the "inheritance" part of this commit's title. This is currently not supported by the Hugo theme site. We will have to wait for some "auto dependency" feature to be implemented for that to happen, but this can be a powerful feature if you want to create your own theme-variant based on others. Fixes #4460 Fixes #4450
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fs := ps.BaseFs.Archetypes.Fs
var pathsToCheck []string
Add support for theme composition and inheritance This commit adds support for theme composition and inheritance in Hugo. With this, it helps thinking about a theme as a set of ordered components: ```toml theme = ["my-shortcodes", "base-theme", "hyde"] ``` The theme definition example above in `config.toml` creates a theme with the 3 components with presedence from left to right. So, Hugo will, for any given file, data entry etc., look first in the project, and then in `my-shortcode`, `base-theme` and lastly `hyde`. Hugo uses two different algorithms to merge the filesystems, depending on the file type: * For `i18n` and `data` files, Hugo merges deeply using the translation id and data key inside the files. * For `static`, `layouts` (templates) and `archetypes` files, these are merged on file level. So the left-most file will be chosen. The name used in the `theme` definition above must match a folder in `/your-site/themes`, e.g. `/your-site/themes/my-shortcodes`. There are plans to improve on this and get a URL scheme so this can be resolved automatically. Also note that a component that is part of a theme can have its own configuration file, e.g. `config.toml`. There are currently some restrictions to what a theme component can configure: * `params` (global and per language) * `menu` (global and per language) * `outputformats` and `mediatypes` The same rules apply here: The left-most param/menu etc. with the same ID will win. There are some hidden and experimental namespace support in the above, which we will work to improve in the future, but theme authors are encouraged to create their own namespaces to avoid naming conflicts. A final note: Themes/components can also have a `theme` definition in their `config.toml` and similar, which is the "inheritance" part of this commit's title. This is currently not supported by the Hugo theme site. We will have to wait for some "auto dependency" feature to be implemented for that to happen, but this can be a powerful feature if you want to create your own theme-variant based on others. Fixes #4460 Fixes #4450
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if kind != "" {
pathsToCheck = append(pathsToCheck, kind+ext)
}
pathsToCheck = append(pathsToCheck, "default"+ext, "default")
Add support for theme composition and inheritance This commit adds support for theme composition and inheritance in Hugo. With this, it helps thinking about a theme as a set of ordered components: ```toml theme = ["my-shortcodes", "base-theme", "hyde"] ``` The theme definition example above in `config.toml` creates a theme with the 3 components with presedence from left to right. So, Hugo will, for any given file, data entry etc., look first in the project, and then in `my-shortcode`, `base-theme` and lastly `hyde`. Hugo uses two different algorithms to merge the filesystems, depending on the file type: * For `i18n` and `data` files, Hugo merges deeply using the translation id and data key inside the files. * For `static`, `layouts` (templates) and `archetypes` files, these are merged on file level. So the left-most file will be chosen. The name used in the `theme` definition above must match a folder in `/your-site/themes`, e.g. `/your-site/themes/my-shortcodes`. There are plans to improve on this and get a URL scheme so this can be resolved automatically. Also note that a component that is part of a theme can have its own configuration file, e.g. `config.toml`. There are currently some restrictions to what a theme component can configure: * `params` (global and per language) * `menu` (global and per language) * `outputformats` and `mediatypes` The same rules apply here: The left-most param/menu etc. with the same ID will win. There are some hidden and experimental namespace support in the above, which we will work to improve in the future, but theme authors are encouraged to create their own namespaces to avoid naming conflicts. A final note: Themes/components can also have a `theme` definition in their `config.toml` and similar, which is the "inheritance" part of this commit's title. This is currently not supported by the Hugo theme site. We will have to wait for some "auto dependency" feature to be implemented for that to happen, but this can be a powerful feature if you want to create your own theme-variant based on others. Fixes #4460 Fixes #4450
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for _, p := range pathsToCheck {
fi, err := fs.Stat(p)
if err == nil {
return p, fi.IsDir()
}
}
return "", false
}