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codeql-action/node_modules/which/README.md
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# which | |
Like the unix `which` utility. | |
Finds the first instance of a specified executable in the PATH | |
environment variable. Does not cache the results, so `hash -r` is not | |
needed when the PATH changes. | |
## USAGE | |
```javascript | |
var which = require('which') | |
// async usage | |
which('node', function (er, resolvedPath) { | |
// er is returned if no "node" is found on the PATH | |
// if it is found, then the absolute path to the exec is returned | |
}) | |
// or promise | |
which('node').then(resolvedPath => { ... }).catch(er => { ... not found ... }) | |
// sync usage | |
// throws if not found | |
var resolved = which.sync('node') | |
// if nothrow option is used, returns null if not found | |
resolved = which.sync('node', {nothrow: true}) | |
// Pass options to override the PATH and PATHEXT environment vars. | |
which('node', { path: someOtherPath }, function (er, resolved) { | |
if (er) | |
throw er | |
console.log('found at %j', resolved) | |
}) | |
``` | |
## CLI USAGE | |
Same as the BSD `which(1)` binary. | |
``` | |
usage: which [-as] program ... | |
``` | |
## OPTIONS | |
You may pass an options object as the second argument. | |
- `path`: Use instead of the `PATH` environment variable. | |
- `pathExt`: Use instead of the `PATHEXT` environment variable. | |
- `all`: Return all matches, instead of just the first one. Note that | |
this means the function returns an array of strings instead of a | |
single string. |