git ssb

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var u = exports
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u.toUtf8 = function (data) {
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  return 'string' == typeof data ? data : new Buffer(data).toString('utf8')
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}
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u.toBuffer = function (data) {
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  return 'string' !== typeof data
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    ? data
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    : new Buffer(data)
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}
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u.toBase64 = require('arraybuffer-base64')
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var crypto = require('crypto')
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u.hash = function (data, cb) {
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  setImmediate(function () {
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    cb(null,
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      crypto.createHash('sha256').update(data).digest('base64')
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    )
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  })
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}
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u.parse = function (str) {
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  try {
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    return JSON.parse(str)
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  } catch (_) { }
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}
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u.HashError = function (_id, id) {
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  return new Error('incorrect hash:'+_id+'\n expected:'+id)
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}
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