git ssb

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var hash = require('../')
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module.exports = function (object, encoding, onEnd) {
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  if (onEnd == null) onEnd = encoding, encoding = null
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  var hasher = hash('sha1', encoding || 'hex', onEnd)
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  var size = Number(object.length || object.size || 0)
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  hasher.hash.update(object.type + ' ' + size + '\0')
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  return hasher
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}
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