65 lines
1.4 KiB
Go
65 lines
1.4 KiB
Go
package main
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import (
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"embed"
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"encoding/json"
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"flag"
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"fmt"
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"io/fs"
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"net/http"
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"runtime/debug"
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)
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//go:embed dist/*
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var embeddedFiles embed.FS
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var buildInfoJSON []byte
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func main() {
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port := flag.Int("port", 8000, "Port to listen on")
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flag.Parse()
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frontend, err := fs.Sub(embeddedFiles, "dist")
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if err != nil {
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panic(err)
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}
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http.Handle("GET /", http.FileServer(http.FS(frontend)))
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initializeBuildInfoJSON()
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http.HandleFunc("GET /api/v1/version", func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Type", "application/json")
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w.Write(buildInfoJSON)
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})
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fmt.Printf("Serving on :%v\n", *port)
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panic(http.ListenAndServe(fmt.Sprintf(":%v", *port), nil))
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}
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func initializeBuildInfoJSON() {
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rawBuildInfo, _ := debug.ReadBuildInfo()
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var revision, time string
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var dirty bool
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for _, buildSetting := range rawBuildInfo.Settings {
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if buildSetting.Key == "vcs.revision" {
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revision = buildSetting.Value
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} else if buildSetting.Key == "vcs.time" {
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time = buildSetting.Value
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} else if buildSetting.Key == "vcs.modified" {
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dirty = buildSetting.Value == "true"
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}
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}
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buildInfo := map[string]interface{}{
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"GitRev": revision,
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"GitDirty": dirty,
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"GitTime": time,
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"GoVersion": rawBuildInfo.GoVersion,
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"AllBuildInfo": rawBuildInfo.String(),
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}
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var err error
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buildInfoJSON, err = json.Marshal(buildInfo)
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if err != nil {
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panic(err)
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}
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}
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