81 lines
1.7 KiB
Go
81 lines
1.7 KiB
Go
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package main
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import (
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"encoding/base64"
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"encoding/json"
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"fmt"
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"github.com/PuerkitoBio/goquery"
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"log"
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"net/http"
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"os"
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"path"
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"strings"
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)
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type gitmojiEntry struct {
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Emoji string `json:"emoji"`
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Name string `json:"name"`
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}
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type gitmojiData struct {
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Gitmojis []gitmojiEntry `json:"gitmojis"`
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}
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const baseDir = "../../data/images"
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func main() {
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os.RemoveAll(baseDir)
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os.MkdirAll(baseDir, 0755)
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data := gitmojiData{}
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f, err := os.Open("../../data/gitmojis.json")
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if err != nil {
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log.Fatal("cannot open data:", err)
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}
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err = json.NewDecoder(f).Decode(&data)
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f.Close()
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if err != nil {
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log.Fatal("cannot decode gitmojis:", err)
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}
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resp, err := http.DefaultClient.Get("https://unicode.org/emoji/charts/emoji-list.html")
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if err != nil {
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log.Fatal("cannot get emoji list:", err)
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}
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if resp.StatusCode != http.StatusOK {
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log.Fatal("unexpected status getting emoji list:", resp.StatusCode)
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}
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doc, err := goquery.NewDocumentFromReader(resp.Body)
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resp.Body.Close()
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if err != nil {
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log.Fatal("cannot parse emojis:", err)
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}
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for _, entry := range data.Gitmojis {
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var er rune
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for _, r := range entry.Emoji {
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er = r
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break
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}
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src := findImage(doc, er)
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b, err := base64.StdEncoding.DecodeString(src)
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if err != nil {
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log.Println("cannot decode image for ", entry.Name, ": ", err)
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continue
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}
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f, err := os.Create(path.Join(baseDir, entry.Name + ".png"))
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if err != nil {
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log.Println("cannot create image for ", entry.Name, ": ", err)
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continue
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}
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f.Write(b)
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f.Close()
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}
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}
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const imagePrefix = "data:image/png;base64,"
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func findImage(doc *goquery.Document, emoji rune) string {
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src := doc.Find(fmt.Sprintf("img[alt='%s']", string(emoji))).AttrOr("src", "")
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return strings.TrimPrefix(src, imagePrefix)
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}
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