Section references in the same testenv are collapsed when {envname} is used

[tucked]

When submitting a bug make sure you can reproduce it via tox -rvv and attach the output of that to the bug. Ideally, you should also submit a project that allows easily reproducing the bug. Thanks!

[testenv]
skip_install = true

[testenv:custom]
commands_pre =
    -{envpython} -c 'import os; os.remove("foo")'
    -{envpython} -c 'import os; os.remove("bar")'
commands =
    {envpython} -c 'open("foo", "x"); open("bar", "x")'
    {[testenv:{envname}]commands_pre}

• This is desirable to never reuse foo/bar, but to keep them around if the early commands fail. This is an SSCCE, but an equivalent real-world example can be made with pipenv/Pipfile/Pipfile.lock (to test that locking the current project always succeeds in multiple python versions).

$ tox
custom run-test-pre: PYTHONHASHSEED='345878128'
custom run-test-pre: commands[0] | -/tmp/tmp.d6HWGl8K3o/.tox/custom/bin/python -c 'import os; os.remove("foo")'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
FileNotFoundError: [Errno 2] No such file or directory: 'foo'
custom run-test-pre: commands[1] | -/tmp/tmp.d6HWGl8K3o/.tox/custom/bin/python -c 'import os; os.remove("bar")'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
FileNotFoundError: [Errno 2] No such file or directory: 'bar'
custom run-test: commands[0] | /tmp/tmp.d6HWGl8K3o/.tox/custom/bin/python -c 'open("foo", "x"); open("bar", "x")'
custom run-test: commands[1] | -/tmp/tmp.d6HWGl8K3o/.tox/custom/bin/python -c 'import os; os.remove("foo")' -/tmp/tmp.d6HWGl8K3o/.tox/custom/bin/python -c 'import os; os.remove("bar")'
______________________________________________________________ summary ______________________________________________________________  custom: commands succeeded
  congratulations :)
$ ll
total 4.0K
-rw-r--r-- 1 dtucker user   0 Jan 13 17:08 bar
-rw-r--r-- 1 dtucker user 268 Jan 13 17:08 tox.ini

This does not reproduce with {[testenv:custom]commands_pre} (however, that isn't usable with generative section names e.g. py{27,36}-custom instead of just custom).

[gaborbernat]

This seems to work with tox4 (see rewrite branch).

tox4 config -e custom -k commands commands_pre
[testenv:custom]
commands =
  /private/tmp/.tox4/custom/bin/python -c 'open("foo", "x"); open("bar", "x")'
  -/private/tmp/.tox4/custom/bin/python -c 'import os; os.remove("foo")'
  -/private/tmp/.tox4/custom/bin/python -c 'import os; os.remove("bar")'
commands_pre =
  -/private/tmp/.tox4/custom/bin/python -c 'import os; os.remove("foo")'
  -/private/tmp/.tox4/custom/bin/python -c 'import os; os.remove("bar")'

I personally have no plans to make it work on tox 3, but if you put in a PR we can review it.

[gaborbernat]

I'm closing this as is fixed in tox 4 (will be out in a few months).