On Tue, Oct 18, 2011 at 10:26, Dmitry Timoshkov <dmi...@baikal.ru> wrote: > Austin English <austinengl...@gmail.com> wrote: > > >> > Reverting a patch in latest git is not always possible, instead it's >> > a very useful test to revert the patch at the suspected regression point >> > and see if that really helps. >> >> That still doesn't require a full regression test, just: >> $ git checkout -f $SHA1SUM >> $ ./configure && make -j4 >> # test >> $ git show $SHA1SUM | patch -p1 -R >> $ ./configure && make -j4 >> # retest > > How do you know that $SHA1SUM without a regression test?
I was referring to the case you pointed out: > Moreover, often users get asked 'does reverting commit xxxx' help? Without > performing a proper regression test it's impossible to asnwer that question. If a developer asks about a specific commit, then of course you know which one to try :). Otherwise, of course a full regression test is required. -- -Austin