From: Kent Fredric Date: Wed, 18 Apr 2012 21:22:12 GMT Subject: Re: IRC discussion re: submodules & missing refs/heads/master Message-ID: In-Reply-To: <20120418211426.GA6920@book.hvoigt.net> On 19 April 2012 09:14, Heiko Voigt wrote: > From the subject I deduce that you have a some problem involving > submodules. Could you please clearly summarise what you found and > possibly provide a recipe (script snippet) how to reproduce the issue? > The transcript was provided for context, after the transcript are details of the problem and solution. Summarised is as follows: on 1.7.8.5 , running "git gc" while inside a submodule path removes refs/heads/master for that submodule in ~/.git/modules , and for some reason, sub-modules still require those files to work properly at 1.7.8.5 , ( which results in 'git status' bailing with 'oops' from the main repo ) Migrating to a newer git makes the problem vanish, as the newer git uses info/refs for both the main repo and the submodule, and the presence/absense of refs/heads/master is unimportant. Solving it is reasonably straight forward on 1.7.8.5, manually extract the SHA1 from the modules info/refs file, and inject it back into the relevant file refs/heads/master , and things return to normal. -- Kent perl -e  "print substr( \"edrgmaM  SPA NOcomil.ic\\@tfrken\", \$_ * 3, 3 ) for ( 9,8,0,7,1,6,5,4,3,2 );" http://kent-fredric.fox.geek.nz