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7dbe8c8003
Test scripts count number of lines in an output and check it againt
its expectation. fb3340a6 ("test-lib: introduce test_line_count to
measure files", 2010-10-31) introduced a helper to show a failure in
such a test in a more readable way than comparing `wc -l` output with
a number.
Besides, on some platforms, "$(wc -l <file)" is padded with leading
whitespace on the left, so
test "$(wc -l <file)" = 4
would not work (most notably on macosX); the users of test_line_count
helper would not suffer from such a portability glitch.
Add a check in check-non-portable-shell.pl to find '"' between
`wc -l` and '=' and hint the user about test_line_count().
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Reviewed-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
29 lines
900 B
Perl
Executable file
29 lines
900 B
Perl
Executable file
#!/usr/bin/perl
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# Test t0000..t9999.sh for non portable shell scripts
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# This script can be called with one or more filenames as parameters
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use strict;
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use warnings;
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my $exit_code=0;
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sub err {
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my $msg = shift;
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print "$ARGV:$.: error: $msg: $_\n";
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$exit_code = 1;
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}
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while (<>) {
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chomp;
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/\bsed\s+-i/ and err 'sed -i is not portable';
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/\becho\s+-[neE]/ and err 'echo with option is not portable (please use printf)';
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/^\s*declare\s+/ and err 'arrays/declare not portable';
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/^\s*[^#]\s*which\s/ and err 'which is not portable (please use type)';
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/\btest\s+[^=]*==/ and err '"test a == b" is not portable (please use =)';
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/\bwc -l.*"\s*=/ and err '`"$(wc -l)"` is not portable (please use test_line_count)';
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/\bexport\s+[A-Za-z0-9_]*=/ and err '"export FOO=bar" is not portable (please use FOO=bar && export FOO)';
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# this resets our $. for each file
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close ARGV if eof;
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}
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exit $exit_code;
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