| #!/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; |
| my %func; |
| |
| sub err { |
| my $msg = shift; |
| s/^\s+//; |
| s/\s+$//; |
| s/\s+/ /g; |
| print "$ARGV:$.: error: $msg: $_\n"; |
| $exit_code = 1; |
| } |
| |
| # glean names of shell functions |
| for my $i (@ARGV) { |
| open(my $f, '<', $i) or die "$0: $i: $!\n"; |
| while (<$f>) { |
| $func{$1} = 1 if /^\s*(\w+)\s*\(\)\s*{\s*$/; |
| } |
| close $f; |
| } |
| |
| while (<>) { |
| chomp; |
| # stitch together incomplete lines (those ending with "\") |
| while (s/\\$//) { |
| $_ .= readline; |
| chomp; |
| } |
| |
| /\bsed\s+-i/ and err 'sed -i is not portable'; |
| /\becho\s+-[neE]/ and err 'echo with option is not portable (use printf)'; |
| /^\s*declare\s+/ and err 'arrays/declare not portable'; |
| /^\s*[^#]\s*which\s/ and err 'which is not portable (use type)'; |
| /\btest\s+[^=]*==/ and err '"test a == b" is not portable (use =)'; |
| /\bwc -l.*"\s*=/ and err '`"$(wc -l)"` is not portable (use test_line_count)'; |
| /\bhead\s+-c\b/ and err 'head -c is not portable (use test_copy_bytes BYTES <file >out)'; |
| /(?:\$\(seq|^\s*seq\b)/ and err 'seq is not portable (use test_seq)'; |
| /\bgrep\b.*--file\b/ and err 'grep --file FILE is not portable (use grep -f FILE)'; |
| /\bexport\s+[A-Za-z0-9_]*=/ and err '"export FOO=bar" is not portable (use FOO=bar && export FOO)'; |
| /^\s*([A-Z0-9_]+=(\w+|(["']).*?\3)\s+)+(\w+)/ and exists($func{$4}) and |
| err '"FOO=bar shell_func" assignment extends beyond "shell_func"'; |
| # this resets our $. for each file |
| close ARGV if eof; |
| } |
| exit $exit_code; |