Report progress of long operations like `git clone` or `git update`

[jcfr]

It is convenient for used of the libvcs to (optionally) be able to report progress.

It used to be reported with vcspull, which approach would you recommend to "restore" this behavior ?

I was initially thinking about having a report_progress_callback parameter initially set to None

[tony]

@jcfr

An aside: I was wrestling the issue here https://github.com/tony/libvcs/compare/log-progress-refactor, which replaced run_buffered (what put the current progress to stdout) with a spinner. But opted to rip it sound to make the codebase simpler.

I'm for 👍 for adding an optional callback.

[tony]

@jcfr libvcs 0.2.0 is up

usage for callback at http://libvcs.readthedocs.io/en/latest/api.html#libvcs.util.run

test at https://github.com/tony/libvcs/blob/a9739a4/tests/test_git.py#L75

another example on vcspull @ https://github.com/tony/vcspull/blob/394e49f/vcspull/cli.py#L114

[jcfr]

Thanks @tony

Works great.

I just updated pys4ext: jcfr/pys4ext@e0fe090