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42 lines
991 B
42 lines
991 B
4 years ago
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#! /usr/bin/env node
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var createHash = require('./browserify')
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var argv = process.argv.slice(2)
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function pipe (algorithm, s) {
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var start = Date.now()
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var hash = createHash(algorithm || 'sha1')
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s.on('data', function (data) {
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hash.update(data)
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})
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s.on('end', function () {
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if (process.env.DEBUG) {
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return console.log(hash.digest('hex'), Date.now() - start)
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}
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console.log(hash.digest('hex'))
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})
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}
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function usage () {
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console.error('sha.js [algorithm=sha1] [filename] # hash filename with algorithm')
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console.error('input | sha.js [algorithm=sha1] # hash stdin with algorithm')
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console.error('sha.js --help # display this message')
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}
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if (!process.stdin.isTTY) {
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pipe(argv[0], process.stdin)
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} else if (argv.length) {
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if (/--help|-h/.test(argv[0])) {
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usage()
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} else {
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var filename = argv.pop()
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var algorithm = argv.pop()
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pipe(algorithm, require('fs').createReadStream(filename))
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}
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} else {
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usage()
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}
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