little-logger (empty) → 0.1.0

raw patch · 5 files changed

+160/−0 lines, 5 filesdep +basedep +co-logdep +co-log-coresetup-changed

Dependencies added: base, co-log, co-log-core, microlens, mtl, text

Files

• LICENSE +30/−0
• README.md +5/−0
• Setup.hs +2/−0
• little-logger.cabal +44/−0
• src/LittleLogger.hs +79/−0

@@ -0,0 +1,30 @@+Copyright Author name here (c) 2020++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of Author name here nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

@@ -0,0 +1,5 @@+# little-logger++[![CircleCI](https://circleci.com/gh/ejconlon/little-logger/tree/master.svg?style=svg)](https://circleci.com/gh/ejconlon/little-logger/tree/master)++Basic logging based on co-log. The difference is that our log action runs in IO, and we expect to use it in any IO-lifting monad.

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

@@ -0,0 +1,44 @@+cabal-version: 1.12++-- This file has been generated from package.yaml by hpack version 0.33.0.+--+-- see: https://github.com/sol/hpack+--+-- hash: 116369e1748442fb579db3e98e1e84bd8587dfe04d6f401f9cd571b200220673++name:           little-logger+version:        0.1.0+synopsis:       Basic logging based on co-log+description:    Please see the README on GitHub at <https://github.com/ejconlon/little-logger#readme>+category:       Logging+homepage:       https://github.com/ejconlon/little-logger#readme+bug-reports:    https://github.com/ejconlon/little-logger/issues+author:         Eric Conlon+maintainer:     ejconlon@gmail.com+copyright:      (c) 2020 Eric Conlon+license:        BSD3+license-file:   LICENSE+build-type:     Simple+extra-source-files:+    README.md++source-repository head+  type: git+  location: https://github.com/ejconlon/little-logger++library+  exposed-modules:+      LittleLogger+  other-modules:+      Paths_little_logger+  hs-source-dirs:+      src+  ghc-options: -Wall -Wcompat -Widentities -Wincomplete-record-updates -Wincomplete-uni-patterns -Wpartial-fields -Wredundant-constraints -fno-warn-unused-top-binds+  build-depends:+      base >=4.12 && <5+    , co-log >=0.4+    , co-log-core >=0.2+    , microlens >=0.4+    , mtl >=2.2+    , text >=1.2+  default-language: Haskell2010

@@ -0,0 +1,79 @@+{-# LANGUAGE ConstraintKinds #-}++{-| Basic logging based on co-log. The difference is that our log action runs in IO, and+  we expect to use it in any IO-lifting monad. -}+module LittleLogger+  ( LogApp (..)+  , SimpleLogAction+  , HasSimpleLog (..)+  , WithSimpleLog+  , logAppLogAction+  , defaultSimpleLogAction+  , logMsg+  , logDebug+  , logError+  , logException+  , logInfo+  , logWarning+  , logWithSeverity+  , newLogApp+  ) where++import Colog.Actions (richMessageAction)+import Colog.Core.Action (LogAction (..))+import Colog.Core.Severity (Severity (..))+import Colog.Message (Message, Msg (..))+import Control.Exception (Exception, displayException)+import Control.Monad.IO.Class (MonadIO (..))+import Control.Monad.Reader (MonadReader (..))+import Data.Text (Text)+import qualified Data.Text as Text+import GHC.Stack (HasCallStack, callStack, withFrozenCallStack)+import Lens.Micro (Lens', lens)+import Lens.Micro.Extras (view)+import Prelude++type SimpleLogAction = LogAction IO Message++class HasSimpleLog env where+  simpleLogL :: Lens' env SimpleLogAction++type WithSimpleLog env m = (MonadIO m, MonadReader env m, HasSimpleLog env, HasCallStack)++defaultSimpleLogAction :: SimpleLogAction+defaultSimpleLogAction = richMessageAction++logMsg :: WithSimpleLog env m => Message -> m ()+logMsg msg = do+  env <- ask+  let LogAction act = view simpleLogL env+  liftIO (act msg)++logWithSeverity :: WithSimpleLog env m => Severity -> Text -> m ()+logWithSeverity sev txt = withFrozenCallStack (logMsg Msg { msgStack = callStack, msgSeverity = sev, msgText = txt })++logDebug :: WithSimpleLog env m => Text -> m ()+logDebug = withFrozenCallStack (logWithSeverity Debug)++logInfo :: WithSimpleLog env m => Text -> m ()+logInfo = withFrozenCallStack (logWithSeverity Info)++logWarning :: WithSimpleLog env m => Text -> m ()+logWarning = withFrozenCallStack (logWithSeverity Warning)++logError :: WithSimpleLog env m => Text -> m ()+logError = withFrozenCallStack (logWithSeverity Error)++logException :: (WithSimpleLog env m, Exception e) => e -> m ()+logException = withFrozenCallStack (logError . Text.pack . displayException)++newtype LogApp = LogApp { _logAppLogAction :: SimpleLogAction }++logAppLogAction :: Lens' LogApp SimpleLogAction+logAppLogAction = lens _logAppLogAction (const LogApp)++instance HasSimpleLog LogApp where+  simpleLogL = logAppLogAction++newLogApp :: LogApp+newLogApp = LogApp defaultSimpleLogAction