Show operating system and repository version list when run outside
a git repo too.
Also made it only display the local repository version when in a git-annex
repo. Before it showed "unknown" when run in a git repo that was not
git-annex initialized. That seemed like confusing behavior.
This commit was sponsored by Jochen Bartl on Patreon.
https://prime.haskell.org/wiki/Libraries/Proposals/SemigroupMonoid
I am not happy with the fragile pile of CPP boilerplate required to support
ghc back to 7.0, which git-annex still targets for both the android build
and the standalone build targeting old linux kernels. It makes me unlikely
to want to use Semigroup more in git-annex, because the benefit of the
abstraction is swamped by the ugliness. I actually considered ripping out
all the Semigroup instances, but some are needed to use
optparse-applicative.
The problem, I think, is they made this transaction on too fast a timeline.
(Although ironically, work on it started in 2015 or earlier!)
In particular, Debian oldstable is not out of security support, and it's
not possible to follow the simpler workarounds documented on the wiki and
have it build on oldstable (because the semigroups package in it is too
old).
I have only tested this build with ghc 8.2.2, not the newer and older
versions that branches of the CPP support. So there could be typoes, we'll
see.
This commit was sponsored by Brock Spratlen on Patreon.
