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37 lines
1.1 KiB
37 lines
1.1 KiB
9 years ago
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# read-cmd-shim
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Figure out what a [`cmd-shim`](https://github.com/ForbesLindesay/cmd-shim)
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is pointing at. This acts as the equivalent of
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[`fs.readlink`](https://nodejs.org/api/fs.html#fs_fs_readlink_path_callback).
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### Usage
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```
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var readCmdShim = require('read-cmd-shim')
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readCmdShim('/path/to/shim.cmd', function (er, destination) {
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…
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})
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var destination = readCmdShim.sync('/path/to/shim.cmd')
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### readCmdShim(path, callback)
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Reads the `cmd-shim` located at `path` and calls back with the _relative_
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path that the shim points at. Consider this as roughly the equivalent of
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`fs.readlink`.
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This can read both `.cmd` style that are run by the Windows Command Prompt
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and Powershell, and the kind without any extension that are used by Cygwin.
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This can return errors that `fs.readFile` returns, except that they'll
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include a stack trace from where `readCmdShim` was called. Plus it can
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return a special `ENOTASHIM` exception, when it can't find a cmd-shim in the
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file referenced by `path`. This should only happen if you pass in a
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non-command shim.
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### readCmdShim.sync(path)
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Same as above but synchronous. Errors are thrown.
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