packaging: use "--python python" for centos7 to avoid explicit "python2"
This is a partial backout of
92a51a45d44c.
We will need to be able to control whether package dependencies are python2 or
python3. Generally (at least in recent Fedora), the package prefix match the
name of the python executable ... but CentOS 7 doesn't use the python2 prefix
in package name or alias for python-docutils yet, so just keep centos7 in the
unversioned "python" world.
Change the new (unused) buildrpm "--python3" option (introduced in
a6dcac6454c1) to "--python python3" to get a more generic method for explicit
control over whether we use python, python2 or python3.
packaging: fix docker-centos5 - use pythonexe and set to "python" as before
Fix
92a51a45d44c .
packaging: move dockerrpm output directory creation to dockerrpm
Avoid having to compute the directory in two places in different environments.
packaging: drop "support" for unsupported Fedora versions
Fedora 31 has just been released, and Fedora 29 will be EOL in a month. Don't
spend any time thinking about dead stuff.
mail: black wants to add this blank line
I can't figure out how this got overlooked on previous runs, but here
we are. It looks like the culprit change is already public?
hghave: verify we have a black that is new enough for our format
We require what is currently the absolute latest black, so let's be paranoid.
phabricator: use True primitive instead of b'true' for phabupdate actions
Something I'd missed in the creatediff port. This didn't matter before with
the old PHP form style wireformat, but breaks with the new arcanist format.
Differential Revision: https://phab.mercurial-scm.org/D7152