scripting for stgit

[nago]

Hi, is there a "nice" way to tell if a directory I am in has an initialized stacked git instance or not?

Purpose: to augment other high-level management tools to be aware if it is in a stgit context or not "automatically", and then "do the right thing."

My best attempt so far, trying to leverage the existing error checking in stgit:

```

#!/usr/bin/env python3                                                                                                                            

try:

    import stgit.lib.stack

    USE_STGIT = True

except ModuleNotFoundError:

    USE_STGIT = False

def has_stgit_branch():

    if not USE_STGIT:

        return False

    try:

        repo = stgit.lib.stack.StackRepository.default()

        stack = repo.get_stack()

    except stgit.exception.StgException:

        return False

    return True

if __name__ == '__main__':

    print("stgit? {}".format(has_stgit_branch()))

```

[Peter Grayson]

In a shell script, you might do something like:

#/bin/sh

current=$(git branch --show-current)
git show-ref "$(current).stgit"

This only tells you whether the current branch is initialized, but not whether *any* branch is initialized, but it could be extended to answer that as well.

Cheers,

Pete