git ssb

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'use strict';
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var fs = require('fs');
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var path = require('path');
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var crypto = require('crypto');
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function sha256 (s) {
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  return crypto.createHash('sha256').update(s).digest('hex');
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}
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var file = fs.readFileSync(path.join(__dirname, 'test-y-binary.png'));
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console.log(sha256(file)); // 72c388896ca159d734244fcf556cc7e06adb255ff09d5eb721f144066a65d3b0
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