git ssb

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//attempt to load node version.
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u = require('./_util')
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if(u.parse) return module.exports = u, console.log("loaded node version for testing")
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var decoder = new TextDecoder('utf8')
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var encoder = new TextEncoder('utf8')
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var u = exports
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u.toUtf8 = function (data) {
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  return 'string' == typeof data ? data : decoder.decode(data)
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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 Uint8Array(encoder.encode(data))
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}
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u.toBase64 = require('arraybuffer-base64')
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u.hash = function (data, cb) {
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  window.crypto.subtle.digest(
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    {  name: "SHA-256" },
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    u.toBuffer(data)
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  )
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  .then(function(hash){
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    return cb(null, exports.toBase64(new Uint8Array(hash)))
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  })
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  .catch(function(err){
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      cb(err)
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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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