tox-add-factor

tox-add-factor allows addition of factors on the command line, so that they can be used to select dependencies and commands.

Any factor can be added with --prepend-factor and --append-factor. The added factors can be combined with the -e argument and TOXENV environment variable.

CI factors

The argument add-ci-factor will detect the CI from the list below and add it as a factor or fallback to adding "ci":

• appveyor
• cirrusci
• travis

To always add a "ci" factor, use --append-factor=ci.

Many CI services use a username which are the name of the service name. For those services, the --prepend-username-factor may be helpful.

Platform factors

Three specific factors can be added to simplify selecting OS and arch: The following example depends on --prepend-ostype-factor

[testenv:osdeps]
deps =
  linux: distro
  windows: jaraco.windows
commands =
  linux: distro --help
  windows: enver --help

The factor names are determined by https://github.com/workhorsy/py-osinfo This may change in the future if distro issue 177 is ever fixed.

The factors --prepend-cpuarch-factor and --prepend-archraw-factor are provided by https://github.com/workhorsy/py-cpuinfo .

The cpuarch factor currently only supports:

• x86_32
• x86_64
• arm_7
• arm_8
• ppc_64
• s390x

With the above two factors added, deps can contain windows-x86_32: M2CryptoWin32 (however that may not install due to its deps).

If tox is run on an arch not in that list, the cpuarch factor will be omitted with a warning which provides the archraw factor name which can be used.