#!/usr/bin/env python3

"""My custom version of 'which', that shows all the possibilities in
${PATH}, in order, for each argument.  For example:

  $ kwhich ls bean-report
  /bin/ls
  /usr/bin/ls
  /bin/bean-report
  /usr/bin/bean-report
  $ 

Hey, wait, I get why there might be two copies of bean-report, but why
are there two of ls?  Are they different?  Let's use -v to find out:

  $ kwhich -v ls bean-report
  -rwxr-xr-x 1 root root 147176 Oct 23 14:29 /bin/ls
  -rwxr-xr-x 1 root root 147176 Oct 23 14:29 /usr/bin/ls
  -rwxr-xr-x 1 root root 972 Nov 18  2020 /bin/bean-report
  -rwxr-xr-x 1 root root 972 Nov 18  2020 /usr/bin/bean-report
  $
"""

import sys
import os

verbose = False
names = sys.argv[1:]

if "-v" in names:
    names.remove("-v")
    verbose = True

for name in names:
    for d in os.environ.get("PATH").split(":"):
        full_path = os.path.join(d, name)
        if os.path.isfile(full_path) and os.access(full_path, os.X_OK):
            if verbose:
                os.system(f"ls -l {full_path}")
            else:
                print(full_path)