Sha256: a751b45841a6786f9ae8ea6c12de6ea761332863bcf4224f5342af6bcedc6615
Contents?: true
Size: 740 Bytes
Versions: 73
Compression:
Stored size: 740 Bytes
Contents
'use strict';
const fs = require('fs');
const shebangCommand = require('shebang-command');
function readShebang(command) {
// Read the first 150 bytes from the file
const size = 150;
let buffer;
if (Buffer.alloc) {
// Node.js v4.5+ / v5.10+
buffer = Buffer.alloc(size);
} else {
// Old Node.js API
buffer = new Buffer(size);
buffer.fill(0); // zero-fill
}
let fd;
try {
fd = fs.openSync(command, 'r');
fs.readSync(fd, buffer, 0, size, 0);
fs.closeSync(fd);
} catch (e) { /* Empty */ }
// Attempt to extract shebang (null is returned if not a shebang)
return shebangCommand(buffer.toString());
}
module.exports = readShebang;
Version data entries
73 entries across 71 versions & 11 rubygems