Thursday, January 26, 2006

X-Code fun with settings

More X-Code ranting and raving…

One thing that’s nice about X-Code is that it shows you the relative path fragments used to track each project item. In particular if you have a tree of files represented as a tree of items in X-Plane, make sure they’re set to relative-to-enclosed group! If you do this, then you can move whole source-trees around and reconnect them in X-Code with a single command. X-Code’s reconnecting to missing files is pretty good anyway, but setting everything to enclosed-group-relative up front can really save time later.

Last night Austin and I got X-Code into a state where the debugger was clearly out of sync with the source code. Scary! I’ll post more if we can figure out what was going on.

A trick from the Apple guys: X-Code uses environment variables to build up the build environment in a huge complex frightening recursive set of entries…it is very powerful and flexible, but it’s not always obvious what set of effects are combining to create the final project. But they pointed out that if you make a shell-script post-build step (in target-view pick Project->New build Phase–>New Run Script Build Phase) then you can enter a dummy shell script. When the script is executed, X-Code will first use 8 tons of “setenv” commands to dump the internal state of the configuration into the shell environment. The result is visible in the command-line view (normally hidden) in the build progress window. In other words, you can use this to easily dump every single configuration variable’s final value and understand what you’re really getting.

I’ve spent the morning really cleaning out the project - our target now has ZERO customized target settings! In other words, when we make a new target we will not have to change ANYTHING. Or so the theory goes.

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