[swift-corelibs-dev] Better integration with UNIX tools
ponyboy47 at gmail.com
Thu Nov 30 11:26:45 CST 2017
Since this isn’t going to be coming to Foundation any time…ever, I’d take a look at the SwiftShell framework. It makes running command line utilities from swift pretty easy. Chaining outputs from previous commands into subsequent commands is also rather simple. It’s based on Process but gives a lot of sugar that may be useful for you. I’ve been using it in one of my projects on an Ubuntu machine and it is easy to work with.
> On Nov 30, 2017, at 1:43 AM, Nick Keets via swift-corelibs-dev <swift-corelibs-dev at swift.org> wrote:
> In that case I think the discussion is kind of moot, scripts are fundamentally different than apps, being terse is important and almost always you want to block.
> If better scripting support is a non-goal for Foundation then `Process` is mostly fine as it is. My only wish would be to somehow make it easier to read and write `Data` to stdin/stdout/stderr.
> On Tue, Nov 28, 2017 at 11:30 PM, Tony Parker <anthony.parker at apple.com <mailto:anthony.parker at apple.com>> wrote:
> Of course, Foundation API has no way of distinguishing if the caller is considered a script or not.
> If the API is a bad idea for other kinds of apps then we simply wouldn’t add it. So, I think this proposed convenience API needs to consider all of the varied clients of Foundation.
> - Tony
>> On Nov 28, 2017, at 12:24 PM, Brent Royal-Gordon <brent at architechies.com <mailto:brent at architechies.com>> wrote:
>>> On Nov 28, 2017, at 8:00 AM, Tony Parker <anthony.parker at apple.com <mailto:anthony.parker at apple.com>> wrote:
>>> Why does it imply a run loop rather than one of many multithreading possibilities (dispatch queue, starting one more thread, etc)? And even if it did use run loops, why is that a problem?
>> The problem is simply that we're discussing using this feature in Swift *scripts*. Swift scripts don't typically invoke `RunLoop.run()` or `dispatch_main()`, and without changing the way they generate main() functions to intrinsically do so (and then schedule main.swift's body on the main runloop/queue), I don't see a good way for it to do so. So an async API would be inconvenient to use from a Swift script.
>> Brent Royal-Gordon
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