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Support env -S/--split-string in shebangs (fixes #2105)

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This commit is contained in:
Vidar Holen 2020-12-12 20:24:32 -08:00
parent 6ba1af0898
commit cc3884cf9f
3 changed files with 13 additions and 3 deletions
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8
src/ShellCheck/AnalyzerLib.hs
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@ -238,6 +238,8 @@ prop_determineShell5 = determineShellTest "#shellcheck shell=sh\nfoo" == Sh
prop_determineShell6 = determineShellTest "#! /bin/sh" == Sh
prop_determineShell7 = determineShellTest "#! /bin/ash" == Dash
prop_determineShell8 = determineShellTest' (Just Ksh) "#!/bin/sh" == Sh
prop_determineShell9 = determineShellTest "#!/bin/env -S dash -x" == Dash
prop_determineShell10 = determineShellTest "#!/bin/env --split-string= dash -x" == Dash
determineShellTest = determineShellTest' Nothing
determineShellTest' fallbackShell = determineShell fallbackShell . fromJust . prRoot . pScript
@ -256,10 +258,12 @@ determineShell fallbackShell t = fromMaybe Bash $
executableFromShebang :: String -> String
executableFromShebang = shellFor
where
shellFor s | "/env " `isInfixOf` s = headOrDefault "" (drop 1 $ words s)
shellFor s | "/env " `isInfixOf` s = fromMaybe "" $ do
[flag, shell] <- matchRegex re s
return shell
shellFor s | ' ' `elem` s = shellFor $ takeWhile (/= ' ') s
shellFor s = reverse . takeWhile (/= '/') . reverse $ s
re = mkRegex "/env +(-S|--split-string=?)? *([^ ]*)"
-- Given a root node, make a map from Id to parent Token.