Implement find / xargs in Python

[andychu]

I'm marking this "help wanted" -- it could be a fun task for someone who's interested in contributing to Oil, but would rather write new code rather than wade into the existing code.

I haven't blogged about this, but find should be folded into the shell. It is almost its own shell -- it starts processes (-exec), has a recursive boolean predicate language, and has its own -printf, globs, and regexes! Some detail here:

https://github.com/oilshell/oil/wiki/Unix-Tools

Lots of complex find expressions here:

https://github.com/oilshell/oil/blob/master/test/wild.sh

A couple old comments on the relationship between find and awk. You can think of both as predicate/action languages:

https://lobste.rs/s/jfarwh/find_is_beautiful_tool#c_rkmlpz

https://lobste.rs/s/kkre7i/find_1_revisited_2002#c_yyfqsk

To be consistent with the rest of the project I suppose it should be implemented in Python. I got the OPy compiler running on all of Oil recently, so hopefully that will speed things up and eventually break the dependence on the CPython interpreter.

[andychu]

Perhaps a start:

https://lobste.rs/s/gqgp6r/pure_python_gnu_find_like_utility_2013#c_xjbla2

I didn't look too closely.

[andychu]

Perhaps a start:

https://lobste.rs/s/gqgp6r/pure_python_gnu_find_like_utility_2013#c_xjbla2

I didn't look too closely.