git ssb

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const { shell } = require('electron')
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const net = require('net')
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const externalViewer = 'https://git.scuttlebot.io'
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const localViewer = 'http://localhost:7718'
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const gitMessageTypes = [
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  'git-repo',
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  'git-update',
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  'issue',
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  'issue-edit',
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  'pull-request'
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]
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module.exports = function (msg) {
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  if (!gitMessageTypes.includes(msg.value.content.type)) return
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  return function gitHandler (id) {
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    portInUse(7718, (useLocal) => {
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      shell.openExternal(`${useLocal ? localViewer : externalViewer}/${encodeURIComponent(id)}`)
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    })
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  }
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}
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function portInUse (port, cb) {
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  // super hacky check!
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  const server = net.createServer(function () {})
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  server.listen(port, '127.0.0.1')
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  server.on('error', function () {
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    cb(true) // eslint-disable-line node/no-callback-literal
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  })
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  server.on('listening', function () {
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    server.close()
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    cb(false) // eslint-disable-line node/no-callback-literal
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  })
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}
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