#! /usr/bin/env python

# Variant of "which".

# On stderr, near and total misses are reported.

# '-l<flags>' argument adds ls -l<flags> of each file found.

import sys

if sys.path[0] in (".", ""): del sys.path[0]

import sys, os

from stat import *

def msg(str):

    sys.stderr.write(str + '\n')

def main():

    pathlist = os.environ['PATH'].split(os.pathsep)

    sts = 0

    longlist = ''

    if sys.argv[1:] and sys.argv[1][:2] == '-l':

        longlist = sys.argv[1]

        del sys.argv[1]

    for prog in sys.argv[1:]:

        ident = ()

        for dir in pathlist:

            filename = os.path.join(dir, prog)

            try:

                st = os.stat(filename)

            except os.error:

                continue

            if not S_ISREG(st[ST_MODE]):

                msg(filename + ': not a disk file')

            else:

                mode = S_IMODE(st[ST_MODE])

                if mode & 0111:

                    if not ident:

                        print filename

                        ident = st[:3]

                    else:

                        if st[:3] == ident:

                            s = 'same as: '

                        else:

                            s = 'also: '

                        msg(s + filename)

                else:

                    msg(filename + ': not executable')

            if longlist:

                sts = os.system('ls ' + longlist + ' ' + filename)

                if sts: msg('"ls -l" exit status: ' + repr(sts))

        if not ident:

            msg(prog + ': not found')

            sts = 1

    sys.exit(sts)

if __name__ == '__main__':

    main()