mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-21 20:46:30 -05:00
381 lines
8.7 KiB
Go
381 lines
8.7 KiB
Go
// Copyright © 2013 Steve Francia <spf@spf13.com>.
|
|
//
|
|
// Licensed under the Simple Public 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://opensource.org/licenses/Simple-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 hugolib
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"fmt"
|
|
"github.com/theplant/blackfriday"
|
|
"html/template"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"sort"
|
|
"strings"
|
|
"time"
|
|
)
|
|
|
|
var _ = filepath.Base("")
|
|
|
|
type Page struct {
|
|
Status string
|
|
Images []string
|
|
Content template.HTML
|
|
Summary template.HTML
|
|
RawMarkdown string // TODO should be []byte
|
|
Params map[string]interface{}
|
|
RenderedContent *bytes.Buffer
|
|
contentType string
|
|
Draft bool
|
|
Tmpl *template.Template
|
|
PageMeta
|
|
File
|
|
Position
|
|
Node
|
|
}
|
|
|
|
const summaryLength = 70
|
|
|
|
type File struct {
|
|
FileName, OutFile, Extension string
|
|
}
|
|
|
|
type PageMeta struct {
|
|
WordCount int
|
|
FuzzyWordCount int
|
|
}
|
|
|
|
type Position struct {
|
|
Prev *Page
|
|
Next *Page
|
|
}
|
|
|
|
type Pages []*Page
|
|
|
|
func (p Pages) Len() int { return len(p) }
|
|
func (p Pages) Less(i, j int) bool { return p[i].Date.Unix() > p[j].Date.Unix() }
|
|
func (p Pages) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
|
|
|
|
// TODO eliminate unnecessary things
|
|
func (p Pages) Sort() { sort.Sort(p) }
|
|
func (p Pages) Limit(n int) Pages { return p[0:n] }
|
|
|
|
func initializePage(filename string) (page Page) {
|
|
page = Page{}
|
|
page.Date, _ = time.Parse("20060102", "20080101")
|
|
page.FileName = filename
|
|
page.contentType = ""
|
|
page.Extension = "html"
|
|
page.Params = make(map[string]interface{})
|
|
page.Keywords = make([]string, 10, 30)
|
|
page.setSection()
|
|
|
|
return page
|
|
}
|
|
|
|
func (p *Page) setSection() {
|
|
x := strings.Split(p.FileName, "/")
|
|
|
|
if section := x[len(x)-2]; section != "content" {
|
|
p.Section = section
|
|
}
|
|
}
|
|
|
|
func (page *Page) Type() string {
|
|
if page.contentType != "" {
|
|
return page.contentType
|
|
}
|
|
|
|
if x := page.GetSection(); x != "" {
|
|
return x
|
|
}
|
|
|
|
return "page"
|
|
}
|
|
|
|
func (page *Page) Layout(l ...string) string {
|
|
layout := ""
|
|
if len(l) == 0 {
|
|
layout = "single"
|
|
} else {
|
|
layout = l[0]
|
|
}
|
|
|
|
if x := page.layout; x != "" {
|
|
return x
|
|
}
|
|
|
|
return strings.ToLower(page.Type()) + "/" + layout + ".html"
|
|
}
|
|
|
|
// TODO should return errors as well
|
|
// TODO new page should return just a page
|
|
// TODO initalize separately... load from reader (file, or []byte)
|
|
func NewPage(filename string) *Page {
|
|
p := initializePage(filename)
|
|
if err := p.buildPageFromFile(); err != nil {
|
|
fmt.Println(err)
|
|
os.Exit(1)
|
|
}
|
|
|
|
p.analyzePage()
|
|
|
|
return &p
|
|
}
|
|
|
|
func (p *Page) analyzePage() {
|
|
p.WordCount = TotalWords(p.RawMarkdown)
|
|
p.FuzzyWordCount = int((p.WordCount+100)/100) * 100
|
|
}
|
|
|
|
// TODO //rewrite to use byte methods instead
|
|
func (page *Page) parseJsonMetaData(data []byte) ([]string, error) {
|
|
var err error
|
|
|
|
lines := strings.Split(string(data), "\n")
|
|
datum := lines[0:]
|
|
|
|
// go through content parse between "{" and "}"
|
|
// must be on their own lines (for now)
|
|
var found = 0
|
|
for i, line := range lines {
|
|
line = strings.TrimSpace(line)
|
|
|
|
if line == "{" {
|
|
found += 1
|
|
}
|
|
|
|
if line == "}" {
|
|
found -= 1
|
|
}
|
|
|
|
if found == 0 {
|
|
datum = lines[0 : i+1]
|
|
lines = lines[i+1:]
|
|
break
|
|
}
|
|
}
|
|
|
|
err = page.handleJsonMetaData([]byte(strings.Join(datum, "\n")))
|
|
|
|
return lines, err
|
|
}
|
|
|
|
func (p *Page) Permalink() template.HTML {
|
|
if len(strings.TrimSpace(p.Slug)) > 0 {
|
|
return template.HTML(MakePermalink(string(p.Site.BaseUrl), strings.TrimSpace(p.Section)+"/"+p.Slug))
|
|
} else if len(strings.TrimSpace(p.Url)) > 2 {
|
|
return template.HTML(MakePermalink(string(p.Site.BaseUrl), strings.TrimSpace(p.Url)))
|
|
} else {
|
|
_, t := filepath.Split(p.FileName)
|
|
x := replaceExtension(strings.TrimSpace(t), p.Extension)
|
|
return template.HTML(MakePermalink(string(p.Site.BaseUrl), strings.TrimSpace(p.Section)+"/"+x))
|
|
}
|
|
}
|
|
|
|
func (page *Page) handleJsonMetaData(datum []byte) error {
|
|
var f interface{}
|
|
if err := json.Unmarshal(datum, &f); err != nil {
|
|
return fmt.Errorf("Invalide JSON in $v \nError parsing page meta data: %s", page.FileName, err)
|
|
}
|
|
|
|
m := f.(map[string]interface{})
|
|
|
|
for k, v := range m {
|
|
switch strings.ToLower(k) {
|
|
case "title":
|
|
page.Title = interfaceToString(v)
|
|
case "description":
|
|
page.Description = interfaceToString(v)
|
|
case "slug":
|
|
page.Slug = Urlize(interfaceToString(v))
|
|
case "url":
|
|
if url := interfaceToString(v); strings.HasPrefix(url, "http://") || strings.HasPrefix(url, "https://") {
|
|
return fmt.Errorf("Only relative urls are supported, %v provided", url)
|
|
}
|
|
page.Url = Urlize(interfaceToString(v))
|
|
case "type":
|
|
page.contentType = interfaceToString(v)
|
|
case "keywords":
|
|
page.Keywords = interfaceArrayToStringArray(v)
|
|
case "date", "pubdate":
|
|
page.Date = interfaceToStringToDate(v)
|
|
case "draft":
|
|
page.Draft = interfaceToBool(v)
|
|
case "layout":
|
|
page.layout = interfaceToString(v)
|
|
case "status":
|
|
page.Status = interfaceToString(v)
|
|
default:
|
|
// If not one of the explicit values, store in Params
|
|
//fmt.Println(strings.ToLower(k))
|
|
switch vv := v.(type) {
|
|
case string: // handle string values
|
|
page.Params[strings.ToLower(k)] = vv
|
|
default: // handle array of strings as well
|
|
switch vvv := vv.(type) {
|
|
case []interface{}:
|
|
var a = make([]string, len(vvv))
|
|
for i, u := range vvv {
|
|
a[i] = interfaceToString(u)
|
|
}
|
|
page.Params[strings.ToLower(k)] = a
|
|
}
|
|
}
|
|
}
|
|
}
|
|
//Printer(page.Params)
|
|
return nil
|
|
}
|
|
|
|
func (page *Page) GetParam(key string) interface{} {
|
|
v := page.Params[strings.ToLower(key)]
|
|
|
|
if v == nil {
|
|
return nil
|
|
}
|
|
|
|
switch v.(type) {
|
|
case string:
|
|
return interfaceToString(v)
|
|
case []string:
|
|
return v
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (page *Page) parseFileMetaData(data []byte) ([]string, error) {
|
|
lines := strings.Split(string(data), "\n")
|
|
|
|
// go through content parse from --- to ---
|
|
var found = 0
|
|
for i, line := range lines {
|
|
line = strings.TrimSpace(line)
|
|
|
|
if found == 1 {
|
|
// parse line for param
|
|
colonIndex := strings.Index(line, ":")
|
|
if colonIndex > 0 {
|
|
key := strings.TrimSpace(line[:colonIndex])
|
|
value := strings.TrimSpace(line[colonIndex+1:])
|
|
value = strings.Trim(value, "\"") //remove quotes
|
|
switch key {
|
|
case "title":
|
|
page.Title = value
|
|
case "layout":
|
|
page.layout = value
|
|
case "extension":
|
|
page.Extension = "." + value
|
|
default:
|
|
page.Params[key] = value
|
|
}
|
|
}
|
|
|
|
} else if found >= 2 {
|
|
// params over
|
|
lines = lines[i:]
|
|
break
|
|
}
|
|
|
|
if line == "---" {
|
|
found += 1
|
|
}
|
|
}
|
|
|
|
return lines, nil
|
|
}
|
|
|
|
func (page *Page) Err(message string) {
|
|
fmt.Println(page.FileName + " : " + message)
|
|
}
|
|
|
|
// TODO return error on last line instead of nil
|
|
func (page *Page) parseFileHeading(data []byte) ([]string, error) {
|
|
if len(data) == 0 {
|
|
page.Err("Empty File, skipping")
|
|
} else {
|
|
if data[0] == '-' {
|
|
return page.parseFileMetaData(data)
|
|
}
|
|
return page.parseJsonMetaData(data)
|
|
}
|
|
return nil, nil
|
|
}
|
|
|
|
func (p *Page) Render(layout ...string) template.HTML {
|
|
curLayout := ""
|
|
|
|
if len(layout) > 0 {
|
|
curLayout = layout[0]
|
|
}
|
|
|
|
return template.HTML(string(p.ExecuteTemplate(curLayout).Bytes()))
|
|
}
|
|
|
|
func (p *Page) ExecuteTemplate(layout string) *bytes.Buffer {
|
|
l := p.Layout(layout)
|
|
buffer := new(bytes.Buffer)
|
|
p.Tmpl.ExecuteTemplate(buffer, l, p)
|
|
return buffer
|
|
}
|
|
|
|
func (page *Page) readFile() []byte {
|
|
var data, err = ioutil.ReadFile(page.FileName)
|
|
if err != nil {
|
|
PrintErr("Error Reading: " + page.FileName)
|
|
return nil
|
|
}
|
|
return data
|
|
}
|
|
|
|
func (page *Page) buildPageFromFile() error {
|
|
data := page.readFile()
|
|
|
|
content, err := page.parseFileHeading(data)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := page.setOutFile(); err != nil {
|
|
return err
|
|
}
|
|
|
|
page.convertMarkdown(content)
|
|
return nil
|
|
}
|
|
|
|
func (p *Page) setOutFile() error {
|
|
if len(strings.TrimSpace(p.Slug)) > 0 {
|
|
// Use Slug if provided
|
|
p.OutFile = strings.TrimSpace(p.Slug + "." + p.Extension)
|
|
} else if len(strings.TrimSpace(p.Url)) > 2 {
|
|
// Use Url if provided & Slug missing
|
|
p.OutFile = strings.TrimSpace(p.Url)
|
|
} else {
|
|
// Fall back to filename
|
|
_, t := filepath.Split(p.FileName)
|
|
p.OutFile = replaceExtension(strings.TrimSpace(t), p.Extension)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (page *Page) convertMarkdown(lines []string) {
|
|
|
|
page.RawMarkdown = strings.Join(lines, "\n")
|
|
content := string(blackfriday.MarkdownCommon([]byte(page.RawMarkdown)))
|
|
page.Content = template.HTML(content)
|
|
page.Summary = template.HTML(TruncateWordsToWholeSentence(StripHTML(StripShortcodes(content)), summaryLength))
|
|
}
|