#!/usr/bin/perl

# Test t0000..t9999.sh for non portable shell scripts
# This script can be called with one or more filenames as parameters

use strict;
use warnings;

my $exit_code=0;

sub err {
        my $msg = shift;
        print "$ARGV:$.: error: $msg: $_\n";
        $exit_code = 1;
}

while (<>) {
        chomp;
        /\bsed\s+-i/ and err 'sed -i is not portable';
        /\becho\s+-n/ and err 'echo -n is not portable (please use printf)';
        /^\s*declare\s+/ and err 'arrays/declare not portable';
        /^\s*[^#]\s*which\s/ and err 'which is not portable (please use type)';
        /\btest\s+[^=]*==/ and err '"test a == b" is not portable (please use =)';
        /\bexport\s+[A-Za-z0-9_]*=/ and err '"export FOO=bar" is not portable (please use FOO=bar && export FOO)';
        # this resets our $. for each file
        close ARGV if eof;
}
exit $exit_code;