Re: transition git-hooks on sourceware.org to Python 3.x

[Joel Brobecker <brobecker@adacore.com>]

Quick update:

I have set up the hooks wrappers at the following location:

    /home/gdbadmin/shared-scripts/git-hooks-wrapper

For the record, here is the list of commands I used to create it:

    # Clone the git-hooks-wrapper scrips

      $ mkdir shared-scripts
      $ cd shared-scripts/
      $ git clone $HOME/GDBADMIN-BARE-REPOS/git-hooks-wrapper/
      $ cd git-hooks-wrapper/

    # Add a Python 3.9 install, and then the venv for the wrappers:

      $ tar xf ~/brobecke/py3-git-hooks/python3.9-3.9.7-x86_64-linux-bin.tar.gz
      $ mv python3.9-3.9.7-x86_64-linux-bin/ python-3.9.7
      $ export PATH=`pwd`/python-3.9.7/bin:$PATH
      $ python3 -m venv python3-for-git-hooks
      $ . ./python3-for-git-hooks/bin/activate
      $ python3 -m pip install pip --upgrade
      $ python3 -m pip install black e3-core flake8 pre-commit \
          pytest pytest-cov pytest-xdist

    # Clone the git-hooks, and run the validation test to make sure
    # the Python venv has everything the git-hooks need (note that
    # this doesn't include the wrappers in the testing, unfortunately).
    #
    # I might look at enhancing the testsuite to include the use of
    # those wrappers instead of the hooks themselves, at some point,
    # but it's a bit of work, so only if we find the regular need to
    # test the wrappers.

      $ git clone https://github.com/adacore/git-hooks
      $ cd git-hooks/testsuite/
      $ ./run-validation-tests

My plan is to transition the binutils-gdb repository to it on Monday
morning (European timezone). To do so, what I will do is:

    $ /git/binutils-gdb.git
    $ mv hooks{,.legacy-python2} \
       && ln -s /home/gdbadmin/shared-scripts/git-hooks-wrapper/hooks hooks

I'll monitor the hooks behavior throughout the end of the year,
and if all goes well, I suggest other projects who are ready
(after reviewing their python scripts used by their project's config)
do the same. I can provide assistance towards the transition,
if you'd like.

-- 
Joel