lure-web-old/backend/badge.go

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2023-09-22 23:22:50 +00:00
package main
import (
_ "embed"
"net/http"
"net/url"
"strconv"
"strings"
"github.com/go-chi/chi/v5"
"go.elara.ws/lure/pkg/search"
)
//go:embed badge-logo.txt
var logoData string
var _ http.HandlerFunc
func handleBadge() http.HandlerFunc {
return func(res http.ResponseWriter, req *http.Request) {
repo := chi.URLParam(req, "repo")
name := chi.URLParam(req, "pkg")
pkg, err := search.GetPkg(repo, name)
if err != nil {
http.Error(res, err.Error(), http.StatusInternalServerError)
return
}
http.Redirect(res, req, genBadgeURL(pkg.Name, genVersion(pkg)), http.StatusFound)
}
}
func genVersion(pkg search.Package) string {
sb := strings.Builder{}
if pkg.Epoch != 0 {
sb.WriteString(strconv.Itoa(int(pkg.Epoch)))
sb.WriteByte(':')
}
sb.WriteString(pkg.Version)
if pkg.Release != 0 {
sb.WriteByte('-')
sb.WriteString(strconv.Itoa(pkg.Release))
}
return sb.String()
}
func genBadgeURL(pkgName, pkgVersion string) string {
v := url.Values{}
v.Set("label", pkgName)
v.Set("message", pkgVersion)
v.Set("logo", logoData)
v.Set("color", "blue")
u := &url.URL{Scheme: "https", Host: "img.shields.io", Path: "/static/v1", RawQuery: v.Encode()}
return u.String()
}