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setup-node/node_modules/cross-spawn/lib/util/readShebang.js
Danny McCormick 78148dae50
Add auth support (#21)
* Updates

* Update

* Update

* Update

* Update

* Yarn sometimes prefers npmrc, so use same token

* Description

* Update readme

* Feedback

* Add type

* new toolkit and scoped registries

* npmrc in RUNNER_TEMP

* Dont always auth

* Try exporting blank token

* Get auth working for now pending runner changes

* Fix string interpolation for auth token.

* Don't export both userconfigs

* Update authutil.js

* Add single quotes for authString

* Fix the registry string.

* Use userconfig and append trailing slash

* Keep in root of repo

* Try just adding auth token

* Remove auth token

* Try changes again

* Add tests

* Npm and GPR samples

* Add types
2019-08-06 18:26:04 -04:00

33 lines
740 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;
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;