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Diffstat (limited to 'Biz/Log.hs')
-rw-r--r-- | Biz/Log.hs | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/Biz/Log.hs b/Biz/Log.hs deleted file mode 100644 index 5c82c28..0000000 --- a/Biz/Log.hs +++ /dev/null @@ -1,133 +0,0 @@ -{-# LANGUAGE LambdaCase #-} -{-# LANGUAGE OverloadedStrings #-} -{-# LANGUAGE NoImplicitPrelude #-} - --- | Log reporting interface --- --- Some guidelines: --- --- * don't allow `mark` in final code --- --- * don't use `br` after `info`, unless verbose mode is requested (--loud flag in bild) --- --- * always use `br` after `good`, `fail`, and `pass` --- --- * often use `br` after `warn`, unless its really unimportant --- --- * labels should be roughly hierarchical from general->specific -module Biz.Log - ( Lvl (..), - good, - pass, - info, - warn, - fail, - wipe, - - -- * Debugging - mark, - - -- * Operators - (~&), - (~?), - - -- * Wai Middleware - wai, - - -- * Low-level - msg, - fmt, - br, - ) -where - -import Alpha hiding (pass) -import qualified Data.Text as Text -import qualified Network.Wai as Wai -import Rainbow (chunk, fore, green, magenta, red, white, yellow) -import qualified Rainbow -import qualified System.Environment as Env -import qualified System.IO as IO -import System.IO.Unsafe (unsafePerformIO) - -data Lvl = Good | Pass | Info | Warn | Fail | Mark - --- | Get the environment. This should probably return 'Biz.App.Area' instead of --- 'String', but I don't want to depend on everything in 'Biz.App', so some kind --- of refactor is needed. -area :: IO String -area = - Env.lookupEnv "AREA" - /> maybe "Test" identity - -msg :: Lvl -> [Text] -> IO () -msg lvl labels = - area +> \case - "Live" -> putDumb - _ -> - Env.getEnv "TERM" +> \case - "dumb" -> putDumb - _ -> Rainbow.hPutChunks IO.stderr [fore color <| clear <> chunk txt <> "\r"] - where - -- For systemd-journal, emacs *compilation* buffers, etc. - putDumb = putStr <| txt <> "\n" - txt = fmt (label : labels) - (color, label) = case lvl of - Good -> (green, "good") - Pass -> (green, "pass") - Info -> (white, "info") - Warn -> (yellow, "warn") - Fail -> (red, "fail") - Mark -> (magenta, "mark") - clear = "\ESC[2K" - --- | Helper function for formatting outputs of labels. -fmt :: [Text] -> Text -fmt = Text.intercalate gap - -gap :: Text -gap = ": " - -br :: IO () -br = Rainbow.hPutChunks stderr ["\n"] >> IO.hFlush stderr - -wipe :: IO () -wipe = hPutStr stderr ("\r" :: Text) >> IO.hFlush stderr - -good, pass, info, warn, fail :: [Text] -> IO () -good = msg Good -pass = msg Pass -info = msg Info -warn = msg Warn -fail = msg Fail - --- | Like 'Debug.trace' but follows the patterns in this module -mark :: (Show a) => Text -> a -> a -mark label val = - unsafePerformIO <| do - msg Mark [label, tshow val] - br - pure val - --- | Pipelined version of 'mark'. --- --- @ --- mark label val = val ~& label --- @ -(~&) :: (Show a) => a -> Text -> a -val ~& label = mark label val - --- | Conditional mark. -(~?) :: (Show a) => a -> (a -> Bool) -> Text -> a -(~?) val test label = if test val then mark label val else val - -wai :: Wai.Middleware -wai app req sendResponse = - app req <| \res -> - info - [ str <| Wai.requestMethod req, - show <| Wai.remoteHost req, - str <| Wai.rawPathInfo req - ] - >> br - >> sendResponse res |