mirror of
https://github.com/go-gitea/gitea
synced 2024-08-20 01:05:14 +02:00
* Server-side syntax hilighting for all code This PR does a few things: * Remove all traces of highlight.js * Use chroma library to provide fast syntax hilighting directly on the server * Provide syntax hilighting for diffs * Re-style both unified and split diffs views * Add custom syntax hilighting styling for both regular and arc-green Fixes #7729 Fixes #10157 Fixes #11825 Fixes #7728 Fixes #3872 Fixes #3682 And perhaps gets closer to #9553 * fix line marker * fix repo search * Fix single line select * properly load settings * npm uninstall highlight.js * review suggestion * code review * forgot to call function * fix test * Apply suggestions from code review suggestions from @silverwind thanks Co-authored-by: silverwind <me@silverwind.io> * code review * copy/paste error * Use const for highlight size limit * Update web_src/less/_repository.less Co-authored-by: Lauris BH <lauris@nix.lv> * update size limit to 1MB and other styling tweaks * fix highlighting for certain diff sections * fix test * add worker back as suggested Co-authored-by: silverwind <me@silverwind.io> Co-authored-by: Lauris BH <lauris@nix.lv>
161 lines
4.7 KiB
Go
161 lines
4.7 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
|
|
// Copyright 2018 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package markdown
|
|
|
|
import (
|
|
"bytes"
|
|
"sync"
|
|
|
|
"code.gitea.io/gitea/modules/log"
|
|
"code.gitea.io/gitea/modules/markup"
|
|
"code.gitea.io/gitea/modules/markup/common"
|
|
"code.gitea.io/gitea/modules/setting"
|
|
giteautil "code.gitea.io/gitea/modules/util"
|
|
|
|
chromahtml "github.com/alecthomas/chroma/formatters/html"
|
|
"github.com/yuin/goldmark"
|
|
"github.com/yuin/goldmark-highlighting"
|
|
meta "github.com/yuin/goldmark-meta"
|
|
"github.com/yuin/goldmark/extension"
|
|
"github.com/yuin/goldmark/parser"
|
|
"github.com/yuin/goldmark/renderer"
|
|
"github.com/yuin/goldmark/renderer/html"
|
|
"github.com/yuin/goldmark/util"
|
|
)
|
|
|
|
var converter goldmark.Markdown
|
|
var once = sync.Once{}
|
|
|
|
var urlPrefixKey = parser.NewContextKey()
|
|
var isWikiKey = parser.NewContextKey()
|
|
var renderMetasKey = parser.NewContextKey()
|
|
|
|
// NewGiteaParseContext creates a parser.Context with the gitea context set
|
|
func NewGiteaParseContext(urlPrefix string, metas map[string]string, isWiki bool) parser.Context {
|
|
pc := parser.NewContext(parser.WithIDs(newPrefixedIDs()))
|
|
pc.Set(urlPrefixKey, urlPrefix)
|
|
pc.Set(isWikiKey, isWiki)
|
|
pc.Set(renderMetasKey, metas)
|
|
return pc
|
|
}
|
|
|
|
// render renders Markdown to HTML without handling special links.
|
|
func render(body []byte, urlPrefix string, metas map[string]string, wikiMarkdown bool) []byte {
|
|
once.Do(func() {
|
|
converter = goldmark.New(
|
|
goldmark.WithExtensions(extension.Table,
|
|
extension.Strikethrough,
|
|
extension.TaskList,
|
|
extension.DefinitionList,
|
|
common.FootnoteExtension,
|
|
highlighting.NewHighlighting(
|
|
highlighting.WithFormatOptions(
|
|
chromahtml.WithClasses(true),
|
|
chromahtml.PreventSurroundingPre(true),
|
|
),
|
|
highlighting.WithWrapperRenderer(func(w util.BufWriter, c highlighting.CodeBlockContext, entering bool) {
|
|
language, _ := c.Language()
|
|
if language == nil {
|
|
language = []byte("text")
|
|
}
|
|
if entering {
|
|
// include language-x class as part of commonmark spec
|
|
_, err := w.WriteString("<pre><code class=\"chroma language-" + string(language) + "\">")
|
|
if err != nil {
|
|
return
|
|
}
|
|
} else {
|
|
_, err := w.WriteString("</code></pre>")
|
|
if err != nil {
|
|
return
|
|
}
|
|
}
|
|
}),
|
|
),
|
|
meta.Meta,
|
|
),
|
|
goldmark.WithParserOptions(
|
|
parser.WithAttribute(),
|
|
parser.WithAutoHeadingID(),
|
|
parser.WithASTTransformers(
|
|
util.Prioritized(&ASTTransformer{}, 10000),
|
|
),
|
|
),
|
|
goldmark.WithRendererOptions(
|
|
html.WithUnsafe(),
|
|
),
|
|
)
|
|
|
|
// Override the original Tasklist renderer!
|
|
converter.Renderer().AddOptions(
|
|
renderer.WithNodeRenderers(
|
|
util.Prioritized(NewHTMLRenderer(), 10),
|
|
),
|
|
)
|
|
|
|
})
|
|
|
|
pc := NewGiteaParseContext(urlPrefix, metas, wikiMarkdown)
|
|
var buf bytes.Buffer
|
|
if err := converter.Convert(giteautil.NormalizeEOL(body), &buf, parser.WithContext(pc)); err != nil {
|
|
log.Error("Unable to render: %v", err)
|
|
}
|
|
return markup.SanitizeReader(&buf).Bytes()
|
|
}
|
|
|
|
var (
|
|
// MarkupName describes markup's name
|
|
MarkupName = "markdown"
|
|
)
|
|
|
|
func init() {
|
|
markup.RegisterParser(Parser{})
|
|
}
|
|
|
|
// Parser implements markup.Parser
|
|
type Parser struct{}
|
|
|
|
// Name implements markup.Parser
|
|
func (Parser) Name() string {
|
|
return MarkupName
|
|
}
|
|
|
|
// Extensions implements markup.Parser
|
|
func (Parser) Extensions() []string {
|
|
return setting.Markdown.FileExtensions
|
|
}
|
|
|
|
// Render implements markup.Parser
|
|
func (Parser) Render(rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte {
|
|
return render(rawBytes, urlPrefix, metas, isWiki)
|
|
}
|
|
|
|
// Render renders Markdown to HTML with all specific handling stuff.
|
|
func Render(rawBytes []byte, urlPrefix string, metas map[string]string) []byte {
|
|
return markup.Render("a.md", rawBytes, urlPrefix, metas)
|
|
}
|
|
|
|
// RenderRaw renders Markdown to HTML without handling special links.
|
|
func RenderRaw(body []byte, urlPrefix string, wikiMarkdown bool) []byte {
|
|
return render(body, urlPrefix, map[string]string{}, wikiMarkdown)
|
|
}
|
|
|
|
// RenderString renders Markdown to HTML with special links and returns string type.
|
|
func RenderString(raw, urlPrefix string, metas map[string]string) string {
|
|
return markup.RenderString("a.md", raw, urlPrefix, metas)
|
|
}
|
|
|
|
// RenderWiki renders markdown wiki page to HTML and return HTML string
|
|
func RenderWiki(rawBytes []byte, urlPrefix string, metas map[string]string) string {
|
|
return markup.RenderWiki("a.md", rawBytes, urlPrefix, metas)
|
|
}
|
|
|
|
// IsMarkdownFile reports whether name looks like a Markdown file
|
|
// based on its extension.
|
|
func IsMarkdownFile(name string) bool {
|
|
return markup.IsMarkupFile(name, MarkupName)
|
|
}
|