gecko-dev/python/docs
Mitchell Hentges 14386d0c7e Bug 1717104: Activate virtualenv before running command r=perftest-reviewers,ahal,AlexandruIonescu
All commands declaring a virtualenv will have them activated before the
command executes. Removes all now-redundant manual activations of
declared virtualenvs.

Commands that don't declare a virtualenv will still implicitly be
associated with the "common" virtualenv, but unlike explicit
virtualenv declarations it'll have to be activated manually, just
like it was before this patch.

To smooth the migration with existing usages, virtualenv activation
behaviour was changed slightly: if attempting to activate a new
virtualenv, but the source venv is already command venv, then raise an
exception. (In the future, we should improve testability of
virtualenv scaffolding logic so that tests can be added for this
sort of thing.) This did cause some issues with some tests, which
will be solved more cleanly with bug 1724273. In the meantime,
minimal modifications were made to failing tests to keep them green:
* `test_command_line.py` was activating the `common` virtualenv so
  that it could install `mozproxy`, and use its CLI. Instead, I
  modified the test to use `mozproxy` using the "module" interface
  (`python -m mozproxy ...`). At that point, `MozbuildObject` was
  unnecessary and usages were replaced with simpler variants.
* `test_vendor.py` needed its explicit `activate_virtualenv()` call
  patched out. It still needs to use a virtualenv's Python
  executable, but due to `sys.executable` now being kept up-to-date
  as of bug 1717051, it could be used directly.

Differential Revision: https://phabricator.services.mozilla.com/D122892
2022-03-23 14:50:45 +00:00
..
index.rst Bug 1717104: Activate virtualenv before running command r=perftest-reviewers,ahal,AlexandruIonescu 2022-03-23 14:50:45 +00:00