Support for working on a target & its dependencies simultaneously about carthage HOT 15 CLOSED

Per discussion, having Xcode rebuild dependencies automatically sounds like a 2.0 thing—it seems like that would require (as a 🌈 and 🐴 goal) Xcode to be doing all of the building and Carthage just to be setting it up.

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This could potentially be captured by #56. Then the problem of working on both in parallel just becomes the normal Git submodules problem.

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Now that #56 is closed, what do you think?

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This seems to encompass some sort of automatic rebuilding, which we don't support—and which I'm not sure it would be very feasible to support.

So, technically, I guess it's still an issue, but I don't know what the resolution would even look like. I'd recommend closing it as “won't fix,” unless you have an idea for making automatic rebuilding happen (without any project-modifying shenanigans).

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We could parse xcodebuild output to see which files were compiled or copied, record their mod dates, and then rebuild when relevant files have changed.

Or actually, we could just note the time we built and check for files newer than that. It’s a bit imprecise, but I think that’s ok for a first pass.

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@robrix When do you think this step would happen? If it's part of carthage build, that sounds like #101, and nothing to do with automatic rebuilding-on-demand.

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We could parse xcodebuild output

Doesn't Carthage use xctool? Using one of the JSON reporters would make that easier.

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@paulyoung It does not use xctool for building Carthage projects. I was pretty reluctant to introduce any kind of binary dependency for the built product.

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@jspahrsummers I see. I was surprised when it was required for make package TBH. 📦🔨

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It's incorrectly a requirement of script/bootstrap, nothing else.

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@jspahrsummers That’s what I was thinking, and it does indeed sound like #101.

Automatic rebuilding (e.g. on-demand from Xcode) is the real 🌈/✨ thing, I suppose.

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I theorized in chat that this might be possible with the use of a Run Script phase (that just executes carthage build) before your project compiles any of its sources. TBD.

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I was able to get automatic rebuilding (tested by making a breaking change in a dependency checkout) by using the following shell script:

/usr/local/bin/carthage build "$SRCROOT"

… inserted into my project's Build Phases as follows:

So this all appears to work, although it's kind of agonizing not having build progress while the script runs.

Is this generally useful enough to be documented somewhere? If so, where?

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Is this generally useful enough to be documented somewhere? If so, where?

@Carthage/carthage bump

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Is this generally useful enough to be documented somewhere? If so, where?

Generally yes, but I'd wait until we have platform specific builds for this.

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