The CMake generator for Xcode simply uses object pointers as the seed for those hex ids: that's why they change every time you run cmake. It's also what makes it easy to guarantee that those ids are unique without having a data structure to track it.
Re-using the same ids would be possible, but it would add complexity to the xcode generator, and the ids would have to be cached and tracked somehow. It's a fairly tall order... If you have the time to propose how to do it, perhaps submitting a feature request and a patch to the bug tracker, I would be happy to review it. Cheers, David On Wed, Mar 3, 2010 at 5:33 AM, <ha...@mac.com> wrote: > i am using cmake 2.8.0 on mac os x 10.6.2 with xcode 3.2.1 for generating > .xcodeproj files for a large cross platform project. > > internally, .xcodeproj package files neatly distinguish project from user > data information (such as debug settings) in separate files: project.pbxproj > and user.pbxuser. in there, file references are tracked by hex ids: > > 104043E30104043E30104043 /* main.cpp */ > > now it happens, that each time i sync to head of the repository (with > typically only a handful files changed) and recreate the project, cmake > selects a complete new set of hex ids for its project.pbxproj file. as a > result, user.pbxuser (while it does not get overwritten by cmake) is > rendered no longer useful and is subsequently reset by xcode to default. > > is there a way to preserve those hex ids (or my debug setting for that > matter)? maybe cmake could be configured with a "seed hex ref" from which > all others are derived in a consistent manner. > [on win_vx90 this works - maybe refs are stored by path rather than id] > > thank you. > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Follow this link to subscribe/unsubscribe: > http://www.cmake.org/mailman/listinfo/cmake >
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