From e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d Mon Sep 17 00:00:00 2001 From: Piotr Russ Date: Mon, 16 Nov 2020 00:10:28 +0100 Subject: api, login, auth --- node_modules/cross-spawn/lib/util/readShebang.js | 32 ++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 node_modules/cross-spawn/lib/util/readShebang.js (limited to 'node_modules/cross-spawn/lib/util/readShebang.js') diff --git a/node_modules/cross-spawn/lib/util/readShebang.js b/node_modules/cross-spawn/lib/util/readShebang.js new file mode 100644 index 0000000..bd4f128 --- /dev/null +++ b/node_modules/cross-spawn/lib/util/readShebang.js @@ -0,0 +1,32 @@ +'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; -- cgit v1.2.3