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Daan Patchwork / patchwork



Tree: bfad9d94f6fd6b6ee044e8305e9ce1f7bc1dc32b

Files: bfad9d94f6fd6b6ee044e8305e9ce1f7bc1dc32b / lib / latest-update.js

1999 bytesRaw
1const https = require('https')
2const packageInfo = require('../package.json')
3const compareVersion = require('compare-version')
4const Value = require('mutant/value')
5const computed = require('mutant/computed')
6
7module.exports = function () {
8 const update = Value()
9 const hidden = Value(false)
10 update.sync = Value(false)
11 const version = packageInfo.version
12 const checkForUpdate = () => {
13 // Check whether notification has been hidden.
14 if (hidden() === true) {
15 // If so, stop the interval timer.
16 clearInterval(updateCheckInterval)
17 // And `return` to quit this function.
18 return
19 }
20
21 https.get({
22 host: 'api.github.com',
23 path: '/repos/ssbc/patchwork/releases/latest',
24 headers: {
25 'user-agent': `Patchwork v${version}`
26 }
27 }, function (res) {
28 if (res.statusCode === 200) {
29 let result = ''
30 res.on('data', (x) => {
31 result += x
32 }).on('end', () => {
33 const info = JSON.parse(result)
34 if (compareVersion(info.tag_name.slice(1), version) > 0) {
35 update.set(info.tag_name.slice(1))
36 }
37 update.sync.set(true)
38 })
39 }
40 // You must handle the error here otherwise you get an unhandled error exception which stops the whole app.
41 }).on('error', function (error) {
42 console.log('error trying to reach github to check for latest patchwork version: ', error)
43 })
44 }
45
46 // Retry update check every 24 hours.
47 const millisecondsPerDay = 1000 * 60 * 60 * 24
48
49 // Previously we only checked for updates on startup, but some people keep
50 // Patchwork running in the background all the time and they should get
51 // update notifications too.
52 const updateCheckInterval = setInterval(checkForUpdate, millisecondsPerDay)
53
54 // Check for update immediately.
55 checkForUpdate()
56
57 const obs = computed([update, hidden], (update, hidden) => update && !hidden ? update : false)
58 obs.ignore = () => hidden.set(true)
59 return obs
60}
61

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