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Don't warn about uuoc for cat -n and similar.

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Vidar Holen
2015-08-16 18:26:38 -07:00
parent 136b654867
commit ccb6bf1ed5
1 changed files with 3 additions and 1 deletions
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4
ShellCheck/Analytics.hs
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@@ -454,12 +454,14 @@ prop_checkUuoc2 = verifyNot checkUuoc "cat * | grep bar"
prop_checkUuoc3 = verify checkUuoc "cat $var | grep bar" prop_checkUuoc3 = verify checkUuoc "cat $var | grep bar"
prop_checkUuoc4 = verifyNot checkUuoc "cat $var" prop_checkUuoc4 = verifyNot checkUuoc "cat $var"
prop_checkUuoc5 = verifyNot checkUuoc "cat \"$@\"" prop_checkUuoc5 = verifyNot checkUuoc "cat \"$@\""
prop_checkUuoc6 = verifyNot checkUuoc "cat -n | grep bar"
checkUuoc _ (T_Pipeline _ _ (T_Redirecting _ _ cmd:_:_)) = checkUuoc _ (T_Pipeline _ _ (T_Redirecting _ _ cmd:_:_)) =
checkCommand "cat" (const f) cmd checkCommand "cat" (const f) cmd
where where
f [word] = unless (mayBecomeMultipleArgs word) $ f [word] = unless (mayBecomeMultipleArgs word || isOption word) $
style (getId word) 2002 "Useless cat. Consider 'cmd < file | ..' or 'cmd file | ..' instead." style (getId word) 2002 "Useless cat. Consider 'cmd < file | ..' or 'cmd file | ..' instead."
f _ = return () f _ = return ()
isOption word = "-" `isPrefixOf` onlyLiteralString word
checkUuoc _ _ = return () checkUuoc _ _ = return ()
prop_checkNeedlessCommands = verify checkNeedlessCommands "foo=$(expr 3 + 2)" prop_checkNeedlessCommands = verify checkNeedlessCommands "foo=$(expr 3 + 2)"