Add generate tags and fix block gen
Signed-off-by: jolheiser <john.olheiser@gmail.com>
This commit is contained in:
jolheiser
215
data/lang/gen_lang.go
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215
data/lang/gen_lang.go
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@ -0,0 +1,215 @@
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//+build generate
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// This program can automatically download language.json file and convert into .go
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package main
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"log"
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"net/http"
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"os"
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"path/filepath"
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"regexp"
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"strings"
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"sync"
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"text/template"
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)
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//go:generate go run $GOFILE
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//go:generate go fmt ./...
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func main() {
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if len(os.Args) == 2 {
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f, err := os.Open(os.Args[1])
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if err != nil {
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panic(err)
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}
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defer f.Close()
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readLang("en_us", f)
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return
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}
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versionURL, err := assetIndexURL()
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if err != nil {
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log.Fatal(err)
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}
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log.Print("start generating lang packages")
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resp, err := http.Get(versionURL)
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if err != nil {
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log.Fatal(err)
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}
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defer resp.Body.Close()
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var list struct {
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Objects map[string]struct {
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Hash string
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Size int64
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}
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}
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err = json.NewDecoder(resp.Body).Decode(&list)
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if err != nil {
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log.Fatal(err)
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}
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tasks := make(chan string)
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var wg sync.WaitGroup
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for i := 0; i < 16; i++ {
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wg.Add(1)
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go func() {
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defer wg.Done()
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for i := range tasks {
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v := list.Objects[i]
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if strings.HasPrefix(i, "minecraft/lang/") {
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name := i[len("minecraft/lang/") : len(i)-len(".json")]
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lang(name, v.Hash)
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}
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}
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}()
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}
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for i := range list.Objects {
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tasks <- i
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}
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close(tasks)
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wg.Wait()
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}
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func lang(name, hash string) {
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log.Print("generating ", name, " package")
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//download language
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LangURL := "http://resources.download.minecraft.net/" + hash[:2] + "/" + hash
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resp, err := http.Get(LangURL)
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if err != nil {
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log.Fatal(err)
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}
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defer resp.Body.Close()
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readLang(name, resp.Body)
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}
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// read one language translation
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func readLang(name string, r io.Reader) {
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var LangMap map[string]string
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err := json.NewDecoder(r).Decode(&LangMap)
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if err != nil {
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log.Fatal("unmarshal json fail: ", err)
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}
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trans(LangMap)
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pName := strings.ReplaceAll(name, "_", "-")
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// mkdir
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err = os.Mkdir(pName, 0777)
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if err != nil && !os.IsExist(err) {
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log.Fatal(err)
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}
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f, err := os.OpenFile(filepath.Join(pName, name+".go"), os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0666)
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if err != nil {
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log.Fatal(err)
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}
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defer f.Close()
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genData := struct {
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PkgName string
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Name string
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LangMap map[string]string
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}{
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PkgName: pName,
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Name: name,
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LangMap: LangMap,
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}
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tmpl := template.Must(template.New("code_template").Parse(
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`// Code generated by downloader.go; DO NOT EDIT.
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package {{.Name}}
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{{if ne .Name "en_us"}}
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import "github.com/Tnze/go-mc/chat"
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func init() { chat.SetLanguage(Map) }
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{{end}}
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var Map = {{.LangMap | printf "%#v"}}
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`))
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if err := tmpl.Execute(f, genData); err != nil {
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log.Fatal(err)
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}
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}
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var javaN = regexp.MustCompile(`%[0-9]\$s`)
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// Java use %2$s to refer to the second arg, but Golang use %2s, so we need this
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func trans(m map[string]string) {
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//replace "%[0-9]\$s" with "%[0-9]s"
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for i := range m {
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c := m[i]
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if javaN.MatchString(c) {
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m[i] = javaN.ReplaceAllStringFunc(c, func(s string) string {
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var index int
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_, err := fmt.Sscanf(s, "%%%d$s", &index)
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if err != nil {
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log.Fatal(err)
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}
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return fmt.Sprintf("%%[%d]s", index)
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})
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}
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}
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}
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func assetIndexURL() (string, error) {
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// Pseudo code for get versionURL:
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// $manifest = {https://launchermeta.mojang.com/mc/game/version_manifest.json}
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// $latest = $manifest.latest.release
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// $versionURL = {$manifest.versions[where .id == $latest ].url}
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// $assetIndexURL = $version.assetIndex.url
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var manifest struct {
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Latest struct {
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Release string `json:"release"`
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} `json:"latest"`
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Versions []struct{
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ID string `json:"id"`
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URL string `json:"url"`
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} `json:"versions"`
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}
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manifestRes, err := http.Get("https://launchermeta.mojang.com/mc/game/version_manifest.json")
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if err != nil {
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return "", fmt.Errorf("could not reach version manifest: %w", err)
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}
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defer manifestRes.Body.Close()
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if err := json.NewDecoder(manifestRes.Body).Decode(&manifest); err != nil {
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return "", fmt.Errorf("could not decode manifest JSON: %w", err)
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}
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var versionURL string
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for _, v := range manifest.Versions {
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if strings.EqualFold(manifest.Latest.Release, v.ID) {
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versionURL = v.URL
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break
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}
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}
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if versionURL == "" {
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return "", errors.New("could not determine versionURL")
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}
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var version struct{
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AssetIndex struct{
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URL string `json:"url"`
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} `json:"assetIndex"`
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}
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versionRes, err := http.Get(versionURL)
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if err != nil {
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return "", fmt.Errorf("could not reach versionURL: %w", err)
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}
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defer versionRes.Body.Close()
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if err := json.NewDecoder(versionRes.Body).Decode(&version); err != nil {
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return "", fmt.Errorf("could not decode version JSON: %w", err)
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}
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return version.AssetIndex.URL, nil
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}
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