git ssb

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var nest = require('depnest')
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var MutantPullReduce = require('mutant-pull-reduce')
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exports.needs = nest({
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  'sbot.pull.backlinks': 'first'
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})
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exports.gives = nest('message.obs.backlinks', true)
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exports.create = function (api) {
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  return nest({
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    'message.obs.backlinks': (id) => backlinks(id)
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  })
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  function backlinks (id) {
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    return MutantPullReduce(api.sbot.pull.backlinks({
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      query: [
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        {$filter: {
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          dest: id
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        }},
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        {$map: {
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          dest: 'dest',
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          id: 'key',
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          timestamp: 'timestamp',
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          type: ['value', 'content', 'type'],
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          root: ['value', 'content', 'root'],
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          branch: ['value', 'content', 'branch'],
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          author: ['value', 'author']
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        }}
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      ]
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    }), (result, msg) => {
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      if (msg.type !== 'vote' && msg.type !== 'about') {
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        result.push(msg)
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      }
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      return result
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    }, {
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      startValue: []
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    })
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  }
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}
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