frontends/server.go

94 lines
2.1 KiB
Go

package main
import (
"embed"
"fmt"
"html/template"
"io/fs"
"net/http"
"os"
)
const PORT = 3003
//go:embed "all:vuejs/dist"
var vueFiles embed.FS
//go:embed "all:reactNextJS/out"
var nextFiles embed.FS
//go:embed "all:svelte/dist"
var svelteFiles embed.FS
//go:embed "vanillaJS"
var vanillaFiles embed.FS
//go:embed "alpinejs"
var alpineFiles embed.FS
//go:embed "react"
var reactFiles embed.FS
//go:embed "all:reactNative/dist"
var reactNativeFiles embed.FS
type frontendInfo struct {
Name, Mountpoint string
Filesystem fs.FS
}
var frontends = []frontendInfo{
{"JS Only", "/vanillaJS/", getSubFS(vanillaFiles, "vanillaJS")},
{"Alpine.js", "/alpinejs/", getSubFS(alpineFiles, "alpinejs")},
{"React", "/react/", getSubFS(reactFiles, "react")},
{"React (Next)", "/reactNextJS/", getSubFS(nextFiles, "reactNextJS/out")},
{"React Native", "/reactNative/", getSubFS(reactNativeFiles, "reactNative/dist")},
{"Vue.js", "/vuejs/", getSubFS(vueFiles, "vuejs/dist")},
{"Svelte", "/svelte/", getSubFS(svelteFiles, "svelte/dist")},
}
func getSubFS(f fs.FS, dir string) fs.FS {
files, err := fs.Sub(f, dir)
if err != nil {
panic(err)
}
return files
}
func outputIndexAndExit(indexTemplate template.Template, frontends []frontendInfo) {
file, err := os.OpenFile("index.html", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
panic(err) // Handle error
}
indexTemplate.Execute(file, frontends)
file.Close()
os.Exit(0)
}
func main() {
args := os.Args
home_template, err := template.ParseFiles("index.tmpl")
if err != nil {
panic(fmt.Sprintf("Error parsing homepage template\n%s", err))
}
if len(args) == 2 && args[1] == "generate" {
outputIndexAndExit(*home_template, frontends)
}
for _, info := range frontends {
fileServer := http.FileServerFS(info.Filesystem)
http.Handle(info.Mountpoint, http.StripPrefix(info.Mountpoint, fileServer))
}
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
err = home_template.Execute(w, frontends)
})
err = http.ListenAndServe(fmt.Sprintf(":%d", PORT), nil)
if err != nil {
panic(fmt.Sprintf("Error starting server: %s", err))
}
}