git ssb

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var {h, when} = require('mutant')
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var nest = require('depnest')
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var extend = require('xtend')
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exports.needs = nest({
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  'message.html': {
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    decorate: 'reduce',
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    layout: 'first',
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    link: 'first',
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    markdown: 'first'
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  }
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})
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exports.gives = nest('message.html.render')
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exports.create = function (api) {
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  return nest('message.html.render', function renderMessage (msg, opts) {
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    if (msg.value.content.type !== 'git-update') return
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    var element = api.message.html.layout(msg, extend({
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      content: messageContent(msg),
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      layout: 'mini'
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    }, opts))
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    return api.message.html.decorate(element, { msg })
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  })
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  function messageContent (msg) {
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    var commits = msg.value.content.commits || []
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    return [
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      h('a', {href: msg.key, title: commitSummary(commits)}, [
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        'pushed',
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        when(commits, [' ', pluralizeCommits(commits)])
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      ]),
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      ' to ',
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      api.message.html.link(msg.value.content.repo)
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    ]
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  }
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}
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function pluralizeCommits (commits) {
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  return when(commits.length === 1, '1 commit', `${commits.length} commits`)
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}
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function commitSummary (commits) {
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  return commits.map(commit => `- ${commit.title}`).join('\n')
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}
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