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config: report a bug if git_dir exists without commondir 

This did happen at some stage, and was fixed relatively quickly. Make
sure that we detect very quickly, too, should that happen again.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Johannes Schindelin 2018-11-14 05:59:02 -08:00 committed by Junio C Hamano
parent d166e6afe5
commit 44004872c8
1 changed files with 2 additions and 0 deletions
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config.c
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@ -1668,6 +1668,8 @@ static int do_git_config_sequence(const struct config_options *opts,

if (opts->commondir)
repo_config = mkpathdup("%s/config", opts->commondir);
else if (opts->git_dir)
BUG("git_dir without commondir");
else
repo_config = NULL;