And add contrib/pyln-testing/pyln/testing/grpc2py.py since we didn't previously know
how to build it!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
See the section headed "Rules with Grouped Targets" on the Texinfo page
`(make)Multiple Targets`.
Without this fix, Make does not know that these recipes unconditionally
make *all* of their named targets regardless of which target triggers
their execution, and Make will blissfully execute multiple instances of
any such recipe in parallel, not only wasting CPU cycles but potentially
producing incorrect results if the recipe is not atomic in its effects
on the file system. With this fix, Make understands that it need only
execute such a recipe once to make all of its targets.
In pursuit of the above, move and combine two redundant msggen recipes
into the top-level Makefile, and populate its grouped targets from the
subordinate Makefiles.
Changelog-None
The server doesn't do much more than unwrapping the request from its
grpc envelope, convert it into the matching JSON-RPC binding struct,
initiate the RPC connection (until we have connection pooling), and
then forwards the converted request. The inverse then happens for the
result.
