activate_this.py has always documented that it should be exec()ed with
locals = globals, and in virtualenv 16.0.0 it raises a NameError
otherwise.
As a simplified demonstration of the weird things that can go wrong
when locals ≠ globals:
>>> exec('a = 1; print([a])', {}, {})
[1]
>>> exec('a = 1; print([a for b in [1]])', {}, {})
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<string>", line 1, in <module>
File "<string>", line 1, in <listcomp>
NameError: name 'a' is not defined
>>> exec('a = 1; print([a for b in [1]])', {})
[1]
Top-level assignments go into locals, but from inside a new scope like
a list comprehension, they’re read out of globals, which doesn’t work.
Fixes#12030.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
Commit 7d12e2019d (#10994) broke fresh
provisions by importing zproject.settings before we were done
modifying settings. Fix it by moving the generate_secrets invocation
to the earliest reasonable place.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Instead, manually activate it in the one place where this
functionality was used (tools/lib/provision.py). This way we avoid
trying to activate the Python 2 thumbor virtualenv from Python 3.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Otherwise this causes an error
```
AttributeError: type object 'Callable' has no attribute '_abc_registry'
```
on 3.7. While the error is specific to 3.7, it is safer to uninstall
typing for all the versions that don't require a pip-provided typing
library.
This changes a few things:
* Deplicates deps_to_install logic.
* Has a retry flag, under which we can guard the apt retry print statements.
* Makes the install_system_deps flow more parallel.
This optimizes tools/provision by not running
`tools/update-authors-json --use-fixture` unless either the script
itself or its fixtures file (zerver/tests/fixtures/authors.json) was
changed.
Fixes#10991.
We were already correctly including libssl-dev in Zulip's dependencies
in development environment provisioning, but (at least now) it's
needed to build certain Python packages like pycurl when building a
Zulip virtualenv in production. I haven't investigated why we didn't
need this on Ubuntu, but one possible reason would be that some other
library in our dependencies list happens to depend on it on Ubuntu.
We fix this by moving the dependency over to the shared
VENV_DEPENDENCIES list.
Fixes part of #9946.
