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Warn about quoted ~ in PATH

This commit is contained in:
Vidar Holen 2014-07-26 13:14:28 -07:00
parent 7fbe66e1c6
commit 0347ce1b7a
1 changed files with 17 additions and 0 deletions
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17
ShellCheck/Analytics.hs
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@ -207,6 +207,7 @@ nodeChecks = [
,checkTestGlobs
,checkConcatenatedDollarAt
,checkFindActionPrecedence
,checkTildeInPath
]
@ -2712,6 +2713,22 @@ checkOverridingPath _ (T_SimpleCommand _ vars []) =
notify id = warn id 2123 "PATH is the shell search path. Use another name."
checkOverridingPath _ _ = return ()
prop_checkTildeInPath1 = verify checkTildeInPath "PATH=\"$PATH:~/bin\""
prop_checkTildeInPath2 = verify checkTildeInPath "PATH='~foo/bin'"
prop_checkTildeInPath3 = verifyNot checkTildeInPath "PATH=~/bin"
checkTildeInPath _ (T_SimpleCommand _ vars _) =
mapM_ checkVar vars
where
checkVar (T_Assignment id Assign "PATH" Nothing (T_NormalWord _ parts)) =
when (any (\x -> isQuoted x && hasTilde x) parts) $
warn id 2147 "Literal tilde in PATH works poorly across programs."
checkVar _ = return ()
hasTilde t = fromMaybe False (liftM2 elem (return '~') (getLiteralStringExt (const $ return "") t))
isQuoted (T_DoubleQuoted {}) = True
isQuoted (T_SingleQuoted {}) = True
isQuoted _ = False
checkTildeInPath _ _ = return ()
prop_checkUnsupported1 = verifyNot checkUnsupported "#!/bin/zsh\nfunction { echo cow; }"
prop_checkUnsupported2 = verify checkUnsupported "#!/bin/sh\nfunction { echo cow; }"