On: On env Shebangs

[watersb]

Interesting.

I've resisted the pull of the Nix side so far...

There's a similar package that auto-pulls dependencies for Swift scripts, but it requires you to explicitly state the external dependencies as comment annotations. The example given is:

    #!/usr/bin/swift sh
    
    import Foundation
    import PromiseKit  // @mxcl ~> 6.5
    
    firstly {
        after(.seconds(2))
    }.then {
        after(.milliseconds(500))
    }.done {
        print("notice: two and a half seconds elapsed")
        exit(0)
    }
    
    RunLoop.main.run()

https://github.com/mxcl/swift-sh