38 lines
937 B
Plaintext
38 lines
937 B
Plaintext
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#!/usr/bin/env node
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/* crc32.js (C) 2014-present SheetJS -- http://sheetjs.com */
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/* vim: set ts=2 ft=javascript: */
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var X;
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try { X = require('../'); } catch(e) { X = require('crc-32'); }
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var fs = require('fs');
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require('exit-on-epipe');
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var args = process.argv.slice(2);
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var filename;
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if(args[0]) filename = args[0];
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if(!process.stdin.isTTY) filename = filename || "-";
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if(!filename) {
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console.error("crc32: must specify a filename ('-' for stdin)");
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process.exit(1);
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}
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if(filename === "-h" || filename === "--help") {
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console.log("usage: " + process.argv[0] + " [filename]");
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process.exit(0);
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}
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if(filename !== "-" && !fs.existsSync(filename)) {
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console.error("crc32: " + filename + ": No such file or directory");
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process.exit(2);
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}
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if(filename === "-") process.stdin.pipe(require('concat-stream')(process_data));
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else process_data(fs.readFileSync(filename));
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function process_data(data) {
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console.log(X.buf(data));
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}
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