feat: pins cli

[cpcloud]

I find myself writing scripts to manage pins, but I think I'd rather do it on the command line.

Playing around with the API, it seems like the existing methods are fairly amenable to building one:

$ pins set-board ibis-pins  # store the board
$ pins list  # list all pins
$ pins search '*cars'  # list all pins matching a glob pattern
$ pins meta mtcars  # yaml or json blob to stdout
$ pins write mtcars mtcars.parquet --type=parquet
$ pins write mtcars mtcars.csv --type=file
$ pins read mtcars  # not entirely what this should do for non-`file` types
$ pins exists mtcars # exit 0 if exists otherwise exit 1

Is this something y'all are interested in?

[cpcloud]

I can take a crack at building a few of the commands and push up a PR for people to play with and evaluate whether to go further.

[machow]

Hey, thanks for opening this issue and the PR!

This looks like it could be really useful, and maybe follows a pattern I see across R and python: In cases where python folks might prefer to run CLI in the shell, R folks often want to run code in the RStudio IDE (e.g. usethis).

@isabelizimm is taking over as maintainer, so it might be a good idea to hold off on any big decisions for the next few weeks / get people's thoughts, but it seems like a really cool feature! (And IMO hitting at an important aspect of how python folks often like to work).

[isabelizimm]

Hello there 👋 a pins CLI would be welcomed! I think it's a great addition to this package. Especially as people are using this pins for tasks that are partially/wholly automated, it seems to fit the use case really well. Thanks for opening up that PR, I will check it out as I poke around and get acquainted in pins!