Files
react-native-devtools-frontend/node_modules/cross-spawn/lib/util/readShebang.js
T
Tim van der Lippe 16aca394c5 Update ESLint and related packages
Major update breaking changes:
- ESLint 7.0.0 (https://eslint.org/docs/user-guide/migrating-to-7.0.0) now includes
.eslint.rc.js in its list, which is fine for us. Other changes are not applicable
for us.
- eslint-plugin-mocha (https://github.com/lo1tuma/eslint-plugin-mocha/blob/master/CHANGELOG.md#700-may-13-2020)
drops support for ESLint <7, but this CL updates to 7+. Other changes are
not applicable for us.

DISABLE_THIRD_PARTY_CHECK=Updating ESLint
R=petermarshall@chromium.org

Change-Id: I7760e084ef87f73a92f9ea4e075fb4c065047f5a
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2534873
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
2020-11-13 12:28:15 +00:00

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;