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-rwxr-xr-xt/check-non-portable-shell.pl56
1 files changed, 56 insertions, 0 deletions
diff --git a/t/check-non-portable-shell.pl b/t/check-non-portable-shell.pl
new file mode 100755
index 0000000..dd8107c
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+++ b/t/check-non-portable-shell.pl
@@ -0,0 +1,56 @@
+#!/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;
+}
+
+my $line = '';
+while (<>) {
+ chomp;
+ $line .= $_;
+ # stitch together incomplete lines (those ending with "\")
+ next if $line =~ s/\\$//;
+
+ $_ = $line;
+ /\bcp\s+-a/ and err 'cp -a is not portable';
+ /\bsed\s+-[^efn]\s+/ and err 'sed option not portable (use only -n, -e, -f)';
+ /\becho\s+-[neE]/ and err 'echo with option is not portable (use printf)';
+ /^\s*declare\s+/ and err 'arrays/declare not portable';
+ /^\s*[^#]\s*which\s/ and err 'which is not portable (use type)';
+ /\btest\s+[^=]*==/ and err '"test a == b" is not portable (use =)';
+ /\bwc -l.*"\s*=/ and err '`"$(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)';
+ /\b[ef]grep\b/ and err 'egrep/fgrep obsolescent (use grep -E/-F)';
+ /\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"';
+ $line = '';
+ # this resets our $. for each file
+ close ARGV if eof;
+}
+exit $exit_code;