static.iglou.eu/tools/builder.go

114 lines
1.9 KiB
Go

package main
import (
"bufio"
"bytes"
"os"
"text/template"
"github.com/tdewolff/minify/v2"
mcss "github.com/tdewolff/minify/v2/css"
mhtml "github.com/tdewolff/minify/v2/html"
)
const (
HtmlSrcFile = "../src/DiscoveryOne.html"
HtmlDstFile = "../public/DiscoveryOne.html"
CssSrcFile = "../src/css/Monolith.css"
CssDstFile = "../public/css/Monolith.css"
DATASrcFile = "../data/data.stf"
)
func main() {
html, err := os.ReadFile(HtmlSrcFile)
if err != nil {
panic(err)
}
css, err := os.ReadFile(CssSrcFile)
if err != nil {
panic(err)
}
data, err := parseData(DATASrcFile)
if err != nil {
panic(err)
}
if err = buildHTML(&html, &data); err != nil {
panic(err)
}
if err = minifyStuff(&html, &css); err != nil {
panic(err)
}
err = os.WriteFile(HtmlDstFile, html, 0644)
if err != nil {
panic(err)
}
err = os.WriteFile(CssDstFile, css, 0644)
if err != nil {
panic(err)
}
}
func parseData(file string) (data []string, err error) {
buff, err := os.Open(file)
if err != nil {
return
}
defer buff.Close()
scanner := bufio.NewScanner(buff)
scanner.Split(bufio.ScanLines)
data = append(data, "")
for scanner.Scan() {
data = append(data, scanner.Text())
}
return
}
func buildHTML(html *[]byte, data *[]string) (err error) {
tpl := template.Must(template.New("").Parse(string(*html)))
buff := new(bytes.Buffer)
if err = tpl.Execute(buff, *data); err != nil {
return
}
*html = buff.Bytes()
return
}
func minifyStuff(html *[]byte, css *[]byte) (err error) {
m := minify.New()
// m.AddFunc("text/css", mcss.Minify)
m.Add("text/css", &mcss.Minifier{})
// m.AddFunc("text/html", mhtml.Minify)
m.Add("text/html", &mhtml.Minifier{
KeepEndTags: true,
KeepDocumentTags: true,
})
*html, err = m.Bytes("text/html", *html)
if err != nil {
return
}
*css, err = m.Bytes("text/css", *css)
if err != nil {
return
}
return
}