mirror of
https://github.com/koalaman/shellcheck.git
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87 lines
2.9 KiB
Haskell
87 lines
2.9 KiB
Haskell
{-
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This file is part of ShellCheck.
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http://www.vidarholen.net/contents/shellcheck
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ShellCheck is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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ShellCheck is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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-}
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import Control.Monad
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import GHC.Exts
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import GHC.IO.Device
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import ShellCheck.Simple
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import System.Directory
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import System.Environment
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import System.Exit
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import System.IO
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clear = ansi 0
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ansi n = "\x1B[" ++ (show n) ++ "m"
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colorForLevel "error" = 31 -- red
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colorForLevel "warning" = 33 -- yellow
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colorForLevel "info" = 32 -- green
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colorForLevel "style" = 32 -- green
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colorForLevel "message" = 1 -- bold
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colorForLevel "source" = 0 -- none
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colorForLevel _ = 0 -- none
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colorComment level comment = (ansi $ colorForLevel level) ++ comment ++ clear
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doFile path colorFunc = do
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let actualPath = if path == "-" then "/dev/stdin" else path
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exists <- doesFileExist actualPath
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if exists then do
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contents <- readFile actualPath
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doInput path contents colorFunc
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else do
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putStrLn (colorFunc "error" $ "No such file: " ++ actualPath)
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doInput filename contents colorFunc = do
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let fileLines = lines contents
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let lineCount = length fileLines
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let comments = shellCheck contents
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let groups = groupWith scLine comments
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if not $ null comments then do
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mapM_ (\x -> do
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let lineNum = scLine (head x)
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let line = if lineNum < 1 || lineNum > lineCount
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then ""
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else fileLines !! (lineNum - 1)
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putStrLn ""
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putStrLn $ colorFunc "message" ("In " ++ filename ++" line " ++ (show $ lineNum) ++ ":")
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putStrLn (colorFunc "source" line)
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mapM (\c -> putStrLn (colorFunc (scSeverity c) $ cuteIndent c)) x
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putStrLn ""
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) groups
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else do
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putStrLn ("No comments for " ++ filename)
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cuteIndent comment =
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(replicate ((scColumn comment) - 1) ' ') ++ "^-- " ++ (scMessage comment)
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getColorFunc = do
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term <- hIsTerminalDevice stdout
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return $ if term then colorComment else const id
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main = do
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args <- getArgs
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colors <- getColorFunc
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if null args then do
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hPutStrLn stderr "shellcheck -- bash/sh script static analysis tool"
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hPutStrLn stderr "Usage: shellcheck filenames..."
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exitFailure
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else
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mapM (\f -> doFile f colors) args
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