test-lint: echo -e (or -E) is not portable
Some implementations of `echo` support the '-e' option to enable backslash interpretation of the following string. As an addition, they support '-E' to turn it off. However, none of these are portable, POSIX doesn't even mention them, and many implementations don't support them. A check for '-n' is already done in check-non-portable-shell.pl, extend it to cover '-n', '-e' or '-E'. Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -17,7 +17,7 @@ sub err {
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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+-n/ and err 'echo -n is not portable (please use printf)';
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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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