jlelse
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GoBlog
mirror of https://github.com/jlelse/GoBlog
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Add code highlighting

This commit is contained in:
Jan-Lukas Else 2021-11-15 21:48:16 +01:00
parent abeba27ec9
commit 0414d2fe85
5 changed files with 64 additions and 0 deletions
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6
go.mod
View File

@ -8,6 +8,7 @@ require (
git.jlel.se/jlelse/goldmark-mark v0.0.0-20210522162520-9788c89266a4
git.jlel.se/jlelse/template-strings v0.0.0-20210617205924-cfa3bd35ae40
github.com/PuerkitoBio/goquery v1.8.0
github.com/alecthomas/chroma v0.9.4
github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de
github.com/c2h5oh/datasize v0.0.0-20200825124411-48ed595a09d2
github.com/cretz/bine v0.2.0
@ -48,6 +49,7 @@ require (
github.com/yuin/goldmark v1.4.4
// master
github.com/yuin/goldmark-emoji v1.0.2-0.20210607094911-0487583eca38
github.com/yuin/goldmark-highlighting v0.0.0-20210516132338-9216f9c5aa01
golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa
golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2
golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
@ -58,6 +60,9 @@ require (
willnorris.com/go/microformats v1.1.2-0.20210827044458-ff2a6ae41971
)
// Override some modules with own forks
replace github.com/yuin/goldmark-highlighting => github.com/jlelse/goldmark-highlighting v0.0.0-20211115195757-39f0fea96680
require (
github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74 // indirect
github.com/andybalholm/cascadia v1.3.1 // indirect
@ -66,6 +71,7 @@ require (
github.com/cespare/xxhash/v2 v2.1.2 // indirect
github.com/coreos/go-iptables v0.6.0 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/dlclark/regexp2 v1.4.0 // indirect
github.com/dustin/go-humanize v1.0.0 // indirect
github.com/felixge/httpsnoop v1.0.2 // indirect
github.com/fsnotify/fsnotify v1.5.1 // indirect

6
go.sum
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@ -58,6 +58,8 @@ github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAE
github.com/PuerkitoBio/goquery v1.5.0/go.mod h1:qD2PgZ9lccMbQlc7eEOjaeRlFQON7xY8kdmcsrnKqMg=
github.com/PuerkitoBio/goquery v1.8.0 h1:PJTF7AmFCFKk1N6V6jmKfrNH9tV5pNE6lZMkG0gta/U=
github.com/PuerkitoBio/goquery v1.8.0/go.mod h1:ypIiRMtY7COPGk+I/YbZLbxsxn9g5ejnI2HSMtkjZvI=
github.com/alecthomas/chroma v0.9.4 h1:YL7sOAE3p8HS96T9km7RgvmsZIctqbK1qJ0b7hzed44=
github.com/alecthomas/chroma v0.9.4/go.mod h1:jtJATyUxlIORhUOFNA9NZDWGAQ8wpxQQqNSB4rjA/1s=
github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74 h1:Kk6a4nehpJ3UuJRqlA3JxYxBZEqCeOmATOvrbT4p9RA=
github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74/go.mod h1:cEWa1LVoE5KvSD9ONXsZrj0z6KqySlCCNKHlLzbqAt4=
github.com/andybalholm/cascadia v1.0.0/go.mod h1:GsXiBklL0woXo1j/WYWtSYYC4ouU9PqHO0sqidkEA4Y=
@ -111,6 +113,8 @@ github.com/dgraph-io/ristretto v0.1.0/go.mod h1:fux0lOrBhrVCJd3lcTHsIJhq1T2rokOu
github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2 h1:tdlZCpZ/P9DhczCTSixgIKmwPv6+wP5DGjqLYw5SUiA=
github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
github.com/djherbis/atime v1.1.0/go.mod h1:28OF6Y8s3NQWwacXc5eZTsEsiMzp7LF8MbXE+XJPdBE=
github.com/dlclark/regexp2 v1.4.0 h1:F1rxgk7p4uKjwIQxBs9oAXe5CqrXlCduYEJvrF4u93E=
github.com/dlclark/regexp2 v1.4.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
github.com/dmulholl/mp3lib v1.0.0 h1:PZq24kJBIk5zIxi/t6Qp8/EOAbAqThyrUCpkUKLBeWQ=
github.com/dmulholl/mp3lib v1.0.0/go.mod h1:4RoA+iht/khfwxmH1ieoxZTzYVbb0am/zdvFkyGRr6I=
github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
@ -281,6 +285,8 @@ github.com/jlaffaye/ftp v0.0.0-20211029032751-b1140299f4df h1:nsRFf9ZkcalB12ZJZY
github.com/jlaffaye/ftp v0.0.0-20211029032751-b1140299f4df/go.mod h1:2lmrmq866uF2tnje75wQHzmPXhmSWUt7Gyx2vgK1RCU=
github.com/jlelse/feeds v1.2.1-0.20210704161900-189f94254ad4 h1:d2oKwfgLl3ef0PyYDkzjsVyYlBZzNpOpXitDraOnVXc=
github.com/jlelse/feeds v1.2.1-0.20210704161900-189f94254ad4/go.mod h1:vt0iOV52/wq97Ql/jp7mUkqyrlEiGQuhHic4bVoHy0c=
github.com/jlelse/goldmark-highlighting v0.0.0-20211115195757-39f0fea96680 h1:c8Vs/L9WqCXFY0LTJjgbzaRCadEmJZjMn6qY9XwZZNM=
github.com/jlelse/goldmark-highlighting v0.0.0-20211115195757-39f0fea96680/go.mod h1:jxhQhWF6W/ybgbZpMP2/Ui0D7b+x8ubBFipwXJJ1qME=
github.com/joeshaw/gengen v0.0.0-20190604015154-c77d87825f5a/go.mod h1:v2qvRL8Xwk4OlARK6gPlf2JreZXzv0dYp/8+kUJ0y7Q=
github.com/jonboulle/clockwork v0.2.2 h1:UOGuzwb1PwsrDAObMuhUnj0p5ULPj8V/xJ7Kx9qUBdQ=
github.com/jonboulle/clockwork v0.2.2/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8=

9
markdown.go
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@ -5,8 +5,10 @@ import (
"html/template"
marktag "git.jlel.se/jlelse/goldmark-mark"
chromahtml "github.com/alecthomas/chroma/formatters/html"
"github.com/yuin/goldmark"
emoji "github.com/yuin/goldmark-emoji"
highlighting "github.com/yuin/goldmark-highlighting"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/extension"
"github.com/yuin/goldmark/parser"
@ -35,6 +37,13 @@ func (a *goBlog) initMarkdown() {
extension.Linkify,
marktag.Mark,
emoji.Emoji,
highlighting.NewHighlighting(
highlighting.WithStyle("monokai"),
highlighting.WithFormatOptions(
chromahtml.ClassPrefix("c-"),
chromahtml.WithClasses(true),
),
),
),
}
publicAddress := ""

42
templateAssets.go
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@ -10,6 +10,8 @@ import (
"path/filepath"
"strings"
chromahtml "github.com/alecthomas/chroma/formatters/html"
"github.com/alecthomas/chroma/styles"
"go.goblog.app/app/pkgs/contenttype"
)
@ -38,6 +40,11 @@ func (a *goBlog) initTemplateAssets() (err error) {
if err != nil {
return err
}
// Add syntax highlighting CSS
err = a.initChromaCSS()
if err != nil {
return err
}
return nil
}
@ -107,3 +114,38 @@ func (a *goBlog) serveAsset(w http.ResponseWriter, r *http.Request) {
w.Header().Set(contentType, af.contentType+contenttype.CharsetUtf8Suffix)
_, _ = w.Write(af.body)
}
func (a *goBlog) initChromaCSS() error {
// Check if file already exists
if _, ok := a.assetFiles["css/chroma.css"]; ok {
return nil
}
// Initialize the style
chromaStyleBuilder := styles.Get("monokai").Builder()
chromaStyle, err := chromaStyleBuilder.Build()
if err != nil {
return err
}
// Create a temporary file
chromaTempFile, err := os.CreateTemp("", "chroma-*.css")
if err != nil {
return err
}
chromaTempFileName := chromaTempFile.Name()
// Write the CSS to the file
chromahtml.New(
chromahtml.ClassPrefix("c-"),
).WriteCSS(chromaTempFile, chromaStyle)
// Close the file
_ = chromaTempFile.Close()
// Compile asset
compiled, err := a.compileAsset(chromaTempFileName)
_ = os.Remove(chromaTempFileName)
if err != nil {
return err
}
if compiled != "" {
a.assetFileNames["css/chroma.css"] = compiled
}
return nil
}

1
templates/post.gohtml
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@ -1,4 +1,5 @@
{{ define "title" }}
<link rel="stylesheet" href="{{ asset "css/chroma.css" }}">
<title>{{ with .Data.RenderedTitle }}{{ . }} - {{end}}{{ mdtitle .Blog.Title }}</title>
{{ include "postheadmeta" . }}
{{ with shorturl .Data }}<link rel="shortlink" href="{{ . }}">{{ end }}