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1 | #!/usr/bin/perl | |
2 | ||
3 | # Test t0000..t9999.sh for non portable shell scripts | |
4 | # This script can be called with one or more filenames as parameters | |
5 | ||
6 | use strict; | |
7 | use warnings; | |
8 | ||
9 | my $exit_code=0; | |
10 | my %func; | |
11 | ||
12 | sub err { | |
13 | my $msg = shift; | |
14 | s/^\s+//; | |
15 | s/\s+$//; | |
16 | s/\s+/ /g; | |
17 | print "$ARGV:$.: error: $msg: $_\n"; | |
18 | $exit_code = 1; | |
19 | } | |
20 | ||
21 | # glean names of shell functions | |
22 | for my $i (@ARGV) { | |
23 | open(my $f, '<', $i) or die "$0: $i: $!\n"; | |
24 | while (<$f>) { | |
25 | $func{$1} = 1 if /^\s*(\w+)\s*\(\)\s*{\s*$/; | |
26 | } | |
27 | close $f; | |
28 | } | |
29 | ||
30 | my $line = ''; | |
31 | while (<>) { | |
32 | chomp; | |
33 | $line .= $_; | |
34 | # stitch together incomplete lines (those ending with "\") | |
35 | next if $line =~ s/\\$//; | |
36 | ||
37 | $_ = $line; | |
38 | /\bcp\s+-a/ and err 'cp -a is not portable'; | |
39 | /\bsed\s+-[^efn]\s+/ and err 'sed option not portable (use only -n, -e, -f)'; | |
40 | /\becho\s+-[neE]/ and err 'echo with option is not portable (use printf)'; | |
41 | /^\s*declare\s+/ and err 'arrays/declare not portable'; | |
42 | /^\s*[^#]\s*which\s/ and err 'which is not portable (use type)'; | |
43 | /\btest\s+[^=]*==/ and err '"test a == b" is not portable (use =)'; | |
44 | /\bwc -l.*"\s*=/ and err '`"$(wc -l)"` is not portable (use test_line_count)'; | |
45 | /\bhead\s+-c\b/ and err 'head -c is not portable (use test_copy_bytes BYTES <file >out)'; | |
46 | /(?:\$\(seq|^\s*seq\b)/ and err 'seq is not portable (use test_seq)'; | |
47 | /\bgrep\b.*--file\b/ and err 'grep --file FILE is not portable (use grep -f FILE)'; | |
48 | /\bexport\s+[A-Za-z0-9_]*=/ and err '"export FOO=bar" is not portable (use FOO=bar && export FOO)'; | |
49 | /^\s*([A-Z0-9_]+=(\w+|(["']).*?\3)\s+)+(\w+)/ and exists($func{$4}) and | |
50 | err '"FOO=bar shell_func" assignment extends beyond "shell_func"'; | |
51 | $line = ''; | |
52 | # this resets our $. for each file | |
53 | close ARGV if eof; | |
54 | } | |
55 | exit $exit_code; |