How do people manage changes to common library files stored across mutiple (Mercurial) repositories?

Posted by mckoss on Stack Overflow See other posts from Stack Overflow or by mckoss
Published on 2009-12-30T17:48:45Z Indexed on 2010/04/01 3:53 UTC
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This is perhaps not a question unique to Mercurial, but that's the SCM that I've been using most lately.

I work on multiple projects and tend to copy source code for libraries or utilities from a previous project to get a leg up on starting a new project. The problem comes in when I want to merge all the changes I made in my latest project, back into a "master" copy of those shared library files.

Since the files stored in disjoint repositories will have distinct version histories, Mercurial won't be able to perform an intelligent merge if I just copy the files back to the master repo (or even between two independent projects).

I'm looking for an easy way to preserve the change history so I can merge library files back to the master with a minimum of external record keeping (which is one of the reasons I'm using SVN less as merges require remembering when copies were made across branches).

Perhaps I need to do a bit more up-front organization of my repository to prepare for a future merge back to a common master.

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