-
Notifications
You must be signed in to change notification settings - Fork 0
/
songAnalyzer.js
56 lines (48 loc) · 1.12 KB
/
songAnalyzer.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
const { spawn } = require('child_process')
const logOutput = (name) => (message) => console.log(`[${name}] ${message}`)
const analyzeSong = function(filename) {
return new Promise((resolve, reject) => {
const process = spawn('python', ['./Analyzer.py', filename]);
const out = []
process.stdout.on(
'data',
(data) => {
out.push(data.toString());
logOutput('stdout')(data);
}
);
const err = []
process.stderr.on(
'data',
(data) => {
err.push(data.toString());
logOutput('stderr')(data);
}
);
process.on('exit', (code, signal) => {
logOutput('exit')(`${code} (${signal})`)
if (code !== 0) {
reject(new Error(err.join('\n')))
return
}
try {
resolve(JSON.parse(out[0]));
} catch(e) {
reject(e);
}
});
});
}
/*
(async () => {
try {
const output = await run()
logOutput('main')(output.message)
process.exit(0)
} catch (e) {
console.error('Error during script execution ', e.stack);
process.exit(1);
}
})();
*/
module.exports = {analyzeSong};