2311061106/frontend/node_modules/cross-spawn/lib/util/readShebang.js
23175 b8b09fd9d4
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完成作业
2025-12-14 16:02:40 +08:00

24 lines
549 B
JavaScript

'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;
const buffer = Buffer.alloc(size);
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;