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Hash all pygments parameters.

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Ensures that Hugo rehighlights source code whenever one of the
highlighting options changes.
This commit is contained in:
Ruben Vermeersch 2015-03-29 12:55:46 +02:00 • committed by bep
parent beaf5db3ff
commit e8ca8602c0
1 changed files with 15 additions and 8 deletions
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23
helpers/pygments.go
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@ -17,6 +17,7 @@ import (
"bytes" "bytes"
"crypto/sha1" "crypto/sha1"
"fmt" "fmt"
"io"
"io/ioutil" "io/ioutil"
"os/exec" "os/exec"
"strings" "strings"
@ -47,9 +48,21 @@ func Highlight(code string, lexer string) string {
fs := hugofs.OsFs fs := hugofs.OsFs
style := viper.GetString("PygmentsStyle")
noclasses := "true"
if viper.GetBool("PygmentsUseClasses") {
noclasses = "false"
}
// Try to read from cache first // Try to read from cache first
hash := sha1.Sum([]byte(code)) hash := sha1.New()
cachefile := fmt.Sprintf("%s/pygments-%s-%x", viper.GetString("CacheDir"), lexer, hash) io.WriteString(hash, lexer)
io.WriteString(hash, code)
io.WriteString(hash, style)
io.WriteString(hash, noclasses)
cachefile := fmt.Sprintf("%s/pygments-%x", viper.GetString("CacheDir"), hash.Sum(nil))
exists, err := Exists(cachefile, fs) exists, err := Exists(cachefile, fs)
if err != nil { if err != nil {
jww.ERROR.Print(err.Error()) jww.ERROR.Print(err.Error())
@ -74,12 +87,6 @@ func Highlight(code string, lexer string) string {
// No cache file, render and cache it // No cache file, render and cache it
var out bytes.Buffer var out bytes.Buffer
var stderr bytes.Buffer var stderr bytes.Buffer
style := viper.GetString("PygmentsStyle")
noclasses := "true"
if viper.GetBool("PygmentsUseClasses") {
noclasses = "false"
}
cmd := exec.Command(pygmentsBin, "-l"+lexer, "-fhtml", "-O", cmd := exec.Command(pygmentsBin, "-l"+lexer, "-fhtml", "-O",
fmt.Sprintf("style=%s,noclasses=%s,encoding=utf8", style, noclasses)) fmt.Sprintf("style=%s,noclasses=%s,encoding=utf8", style, noclasses))