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// Copyright 2019 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 files
import (
"bufio"
"fmt"
"io"
"os"
"path/filepath"
"sort"
"strings"
"unicode"
"github.com/spf13/afero"
)
const (
// The NPM package.json "template" file.
FilenamePackageHugoJSON = "package.hugo.json"
// The NPM package file.
FilenamePackageJSON = "package.json"
FilenameHugoStatsJSON = "hugo_stats.json"
)
var (
// This should be the only list of valid extensions for content files.
contentFileExtensions = []string{
"html", "htm",
"mdown", "markdown", "md",
"asciidoc", "adoc", "ad",
"rest", "rst",
"org",
"pandoc", "pdc",
}
contentFileExtensionsSet map[string]bool
htmlFileExtensions = []string{
"html", "htm",
}
htmlFileExtensionsSet map[string]bool
)
func init() {
contentFileExtensionsSet = make(map[string]bool)
for _, ext := range contentFileExtensions {
contentFileExtensionsSet[ext] = true
}
htmlFileExtensionsSet = make(map[string]bool)
for _, ext := range htmlFileExtensions {
htmlFileExtensionsSet[ext] = true
}
}
func IsContentFile(filename string) bool {
return contentFileExtensionsSet[strings.TrimPrefix(filepath.Ext(filename), ".")]
}
func IsIndexContentFile(filename string) bool {
if !IsContentFile(filename) {
return false
}
base := filepath.Base(filename)
return strings.HasPrefix(base, "index.") || strings.HasPrefix(base, "_index.")
}
func IsHTMLFile(filename string) bool {
return htmlFileExtensionsSet[strings.TrimPrefix(filepath.Ext(filename), ".")]
}
func IsContentExt(ext string) bool {
return contentFileExtensionsSet[ext]
}
type ContentClass string
const (
ContentClassLeaf ContentClass = "leaf"
ContentClassBranch ContentClass = "branch"
ContentClassFile ContentClass = "zfile" // Sort below
ContentClassContent ContentClass = "zcontent"
)
func (c ContentClass) IsBundle() bool {
return c == ContentClassLeaf || c == ContentClassBranch
}
func ClassifyContentFile(filename string, open func() (afero.File, error)) ContentClass {
if !IsContentFile(filename) {
return ContentClassFile
}
if IsHTMLFile(filename) {
// We need to look inside the file. If the first non-whitespace
// character is a "<", then we treat it as a regular file.
// Eearlier we created pages for these files, but that had all sorts
// of troubles, and isn't what it says in the documentation.
// See https://github.com/gohugoio/hugo/issues/7030
if open == nil {
panic(fmt.Sprintf("no file opener provided for %q", filename))
}
f, err := open()
if err != nil {
return ContentClassFile
}
ishtml := isHTMLContent(f)
f.Close()
if ishtml {
return ContentClassFile
}
}
if strings.HasPrefix(filename, "_index.") {
return ContentClassBranch
}
if strings.HasPrefix(filename, "index.") {
return ContentClassLeaf
}
return ContentClassContent
}
var htmlComment = []rune{'<', '!', '-', '-'}
func isHTMLContent(r io.Reader) bool {
br := bufio.NewReader(r)
i := 0
for {
c, _, err := br.ReadRune()
if err != nil {
break
}
if i > 0 {
if i >= len(htmlComment) {
return false
}
if c != htmlComment[i] {
return true
}
i++
continue
}
if !unicode.IsSpace(c) {
if i == 0 && c != '<' {
return false
}
i++
}
}
return true
}
const (
ComponentFolderArchetypes = "archetypes"
ComponentFolderStatic = "static"
ComponentFolderLayouts = "layouts"
ComponentFolderContent = "content"
ComponentFolderData = "data"
ComponentFolderAssets = "assets"
ComponentFolderI18n = "i18n"
FolderResources = "resources"
FolderJSConfig = "_jsconfig" // Mounted below /assets with postcss.config.js etc.
)
var (
JsConfigFolderMountPrefix = filepath.Join(ComponentFolderAssets, FolderJSConfig)
ComponentFolders = []string{
ComponentFolderArchetypes,
ComponentFolderStatic,
ComponentFolderLayouts,
ComponentFolderContent,
ComponentFolderData,
ComponentFolderAssets,
ComponentFolderI18n,
}
componentFoldersSet = make(map[string]bool)
)
func init() {
sort.Strings(ComponentFolders)
for _, f := range ComponentFolders {
componentFoldersSet[f] = true
}
}
// ResolveComponentFolder returns "content" from "content/blog/foo.md" etc.
func ResolveComponentFolder(filename string) string {
filename = strings.TrimPrefix(filename, string(os.PathSeparator))
for _, cf := range ComponentFolders {
if strings.HasPrefix(filename, cf) {
return cf
}
}
return ""
}
func IsComponentFolder(name string) bool {
return componentFoldersSet[name]
}
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