We had been forcing provision to Python 3 in dev. Now that everything
is Python 3 and the `tools/lib/provision.py` shebang reflects that, we
can just invoke the script directly like everything else.
This follows up on 207cf6302 from last year to clean up cases that
have apparently popped up since then. Invoking the scripts directly
makes a cleaner command line in any case, and moreover is essential
to how we control running a Zulip install as either Python 2 or 3
(soon, how we always ensure it runs as Python 3.)
One exception: we're currently forcing `provision` in dev to run
Python 3, while still running both Python 2 and Python 3 jobs in CI.
We use a non-shebang invocation to do the forcing of Python 3.
From the line in tools/provision it should trickle to the rest of the
scripts. This works since almost all the python scripts have been linted
to be generic.
Proof that the setup is python3 only: with this commit, within the
vagrant container env, /srv/zulip-venv is no longer present and
`./tools/run-dev.py` runs just fine.
[gnprice: Added `rm -f` and warning message, and made small edits.]
The script now outputs bullet points to the user when
it fails, and there are some basic comments at the top
of the file. I also fixed the path of the log file.
Fixes#3230
Previously, if a script called by provision threw an error, the
traceback for the called script would be lost far above the traceback
from provision itself in the terminal history, resulting in a great
deal of confusion about what the actual problem was.
Before this commit, provisioning was done by executing provision.py,
which printed the log directly to stdout, making debugging harder.
This commit creates a wrapper bash script 'provision' in tools, which
calls 'zulip/scripts/tools/provision_vm.py' (the new location of
provision.py) and prints all the output to
'zulip/var/log/zulip/zulip_provision.log' via 'tee'.
Travis tests and docs have been modified accordingly.
Tim Abbott
rht
Greg Price
Steve Howell
Robert Hönig
Tim Abbott
Anders Kaseorg
Luke Faraone