Ævar Arnfjörð Bjarmason [off-list ref] writes:
Nobody in this thread has mentioned GIT_PUSH_OPTION_* which works pretty
much like Patrick's suggestion, and it looks like --local-env-vars
misses those:
$ GIT_PUSH_OPTION_0=foo GIT_PUSH_OPTION_COUNT=20 git rev-parse --local-env-vars | grep GIT_PUSH
$
I haven't tested this, but I expect there's a bug where a push hook
itself does a local push to another repo and that repo has a hook, that
the push options are erroneously carried forward to the sub-process.
True.
Nobody mentioned the environment variable in the discussion, and
nobody discovered and was motivated enough to report and/or fix it,
may be a good indication that these variables are not much used in
real life and certainly not in combination with hooks that further
push things out.