tree 653efb34c864135c3b192449c7bfd282e48153ec
parent 44d41ee992bd412bd9e4f8663e2e090894232be9
author Philipp Schrader <philipp.schrader@gmail.com> 1665013296 -0400
committer GitHub <noreply@github.com> 1665013296 -0700
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Allow requirements_in to be generated (#829)

* Allow requirements_in to be generated

We generate the `requirements_in` file from various input files
roughly like so:

    genrule(
        name = "generate_3.7_x86_requirements",
        srcs = [
            "requirements_base.in.txt",
            "requirements_extra_37.in.txt",
        ],
        outs = ["requirements_3.7_x86.txt"],
        cmd = "cat $(SRCS) > $(OUTS)",
    )

    compile_pip_requirements(
        name = "compile_requirements_3.7_x86",
        requirements_in = ":requirements_3.7_x86.txt",
        requirements_txt = "requirements_3.7_x86.lock.txt",
    )

The current code errors out with a message like this:

    Updating common/python/requirements_3.7_x86.lock.txt
    Usage: pip_compile.py [OPTIONS] [SRC_FILES]...
    Try 'pip_compile.py -h' for help.

    Error: Invalid value for '[SRC_FILES]...': Path 'common/python/requirements_3.7_x86.txt' does not exist.

This patch here fixes the issue by resolving the `requirements_in`
path before the tool `cd`s into the workspace directory.

* Make tests pass

* Run black

* Fix some runtime problems

Co-authored-by: Thulio Ferraz Assis <3149049+f0rmiga@users.noreply.github.com>