数据库添加索引；update

netease_music/src/getInfo/lyricInfoUtils.js

@@ -28,6 +28,13 @@ async function fetchAll() {
 
 // 获取歌词详情
 async function fetch({ songId, debug = false }) {
+    let result = await dbUtils.query('SELECT count(*) as count FROM lyric WHERE song_id = ?', [songId]);
+    if (result[0].count > 0 && !debug) {
+        // 这里暂时跳过，后期可能要考虑歌词version更新的问题
+        console.log(`数据库中已有数据，跳过 songId: ${songId}`);
+        return;
+    }
+
     var url = `https://music.163.com/api/song/lyric?id=${songId}&lv=1`; // &kv=1&tv=-1
     try {
         // var json = fs.readFileSync(path.join(__dirname, "../../temp", `lyric-${songId}.json`), 'utf8');