git ssb

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const ref = require('ssb-ref')
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module.exports = function getRoot (msg) {
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  if (msg && msg.value && msg.value.content) {
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    const type = msg.value.content.type
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    let root = msg.value.content.root
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    if (type === 'vote') {
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      root = msg.value.content.vote && msg.value.content.vote.link
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    } else if (type === 'about') {
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      root = msg.value.content.about
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    }
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    // only abouts and likes for messages (not feeds) will be returned
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    if (ref.isMsg(root)) return root
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  }
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}
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