Re: BUG: git bash / python interaction with absolute paths as environment variables in Windows

[Leland Weathers <leland@lcweathers.net>]

Eric, thanks for the pointer. Got it working as expected now.

On Mon, Dec 6, 2021 at 9:16 PM Eric Sunshine <sunshine@sunshineco.com> wrote:
>
> On Mon, Dec 6, 2021 at 10:01 PM Leland Weathers <leland@lcweathers.net> wrote:
> > Issue: Using Git Bash for Windows (2.34.1-64) and Python 3.9.9, a git
> > path is incorrectly prepended to environment variables in Python code.
> >
> > $ echo $TEST_DIR_BROKEN
> > /foo/bar
> > $ echo $TEST_DIR_WORKING
> > foo/bar
> > $ python foobar.py
> > environ: C:/Users/Leland/AppData/Local/Programs/Git/foo/bar
> > environ: foo/bar
> >
> > Is there anything else I'm missing on why the same Python script would
> > read environment variables differently than what is read from Git Bash
> > itself or why the exact same Python code reads the environment
> > variable correctly when run from a command prompt and not in Git Bash?
> >
> > In both cases I am using the same Python virtual environment. Other
> > environment variables (e.g. non-absolute directory paths) appear to be
> > read correctly. I'm assuming that this is a git issue given the
>
> This is probably not specific to Git, but rather a "feature" of MSYS2,
> which Git for Windows happens to employ for its Bash shell. When
> invoking Windows commands from within MSYS2, command-line arguments
> and environment variables on the Unix side which appear to be paths
> will be converted to Windows paths for the sake of the native Windows
> program (since it won't know anything about the Unix paths coming out
> of the MSYS2 environment).
>
> This behavior is documented at [1]; in particular, see the
> "Environment Variables" section.
>
> [1]: https://www.msys2.org/docs/filesystem-paths/