main
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Last change
on this file since d565449 was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
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Update repo after prototype presentation
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Property mode
set to
100644
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File size:
549 bytes
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| 1 | 'use strict';
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| 2 |
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| 3 | const fs = require('fs');
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| 4 | const shebangCommand = require('shebang-command');
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| 5 |
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| 6 | function readShebang(command) {
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| 7 | // Read the first 150 bytes from the file
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| 8 | const size = 150;
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| 9 | const buffer = Buffer.alloc(size);
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| 10 |
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| 11 | let fd;
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| 12 |
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| 13 | try {
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| 14 | fd = fs.openSync(command, 'r');
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| 15 | fs.readSync(fd, buffer, 0, size, 0);
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| 16 | fs.closeSync(fd);
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| 17 | } catch (e) { /* Empty */ }
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| 18 |
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| 19 | // Attempt to extract shebang (null is returned if not a shebang)
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| 20 | return shebangCommand(buffer.toString());
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| 21 | }
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| 22 |
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| 23 | module.exports = readShebang;
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