monad-logger

A class of monads which can log messages.

https://github.com/snoyberg/monad-logger#readme

Version on this page:	0.3.30
LTS Haskell 20.24:	0.3.39@rev:1
Stackage Nightly 2023-06-04:	0.3.39@rev:1
Latest on Hackage:	0.3.40

See all snapshots monad-logger appears in

MIT licensed by Michael Snoyman

Maintained by michael@snoyman.com

This version can be pinned in stack with:monad-logger-0.3.30@sha256:70bf02bd8a2cba62be272e07d5787cecbd8667582baca24f68bc29ba306aaf9f,1755

Module documentation for 0.3.30

Control
- Control.Monad
  - Control.Monad.Logger

Depends on 19 packages(full list with versions):

base, bytestring, conduit, conduit-extra, exceptions, fast-logger, lifted-base, monad-control, monad-loops, mtl, resourcet, stm, stm-chans, template-haskell, text, transformers, transformers-base, transformers-compat, unliftio-core

Used by 25 packages in lts-13.19(full list with versions):

monad-logger

A monad transformer approach for logging.

This package provides Template Haskell functions for determining source code locations of messages.

Changes

0.3.30

Added MonadFail instances for LoggingT and NoLoggingT.

0.3.29

Export mapLoggingT and mapNoLoggingT

0.3.28.5

Fix missing module #1

0.3.28.4

Move to a new repo

0.3.28.3

Compat for older GHCs #161

0.3.28.2

Support for exceptions 0.9 and 0.10 #158
Drop blaze-builder dependency

0.3.28.1

Fix support for GHC 7.8 #154

0.3.28

Added WriterLoggingT for collecting log lines and help with testing

0.3.27

Drop backwards compat with older library versions

0.3.26

Add MonadUnliftIO instances

0.3.25.1

Fix some incorrect @since comments

0.3.25

Export all CallStack log functions #143

0.3.24

Added MonadReader instance for NoLoggingT.

0.3.23

Changed runFileLoggingT buffering to line buffering.
Added defaultLog and logWithoutLoc to list of exported functions.

0.3.22

Added runFileLoggingT.

0.3.21

Reimplemented Functor & Applicative for LoggingT & NoLoggingT #125 #126

0.3.20.2

Support for GHC 8.2

0.3.20.1

Fix #106 by correcting the default signature for MonadLoggerIO #108

0.3.20

Generalize the type of unChanLoggingT #104

0.3.19

Add CallStack-based functions and Control.Monad.Logger.CallStack module

0.3.18

Added logTHShow and logDebugSH, logInfoSH, etc. Accepts an argument of Show a => a instead of just Text.

0.3.17

log to a chan #74

0.3.16

Provide default monadLoggerLog implementation #72

0.3.15

Expose Loc constructor #70

0.3.14

Don’t include source location for defaultLoc #69

0.3.13.1

Allow fast-logger 2.3

0.3.13

Re-export LogStr from fast-logger #56
Added filterLogger

0.3.12

Use transformers-compat to provide universal ExceptT support #53

0.3.11.1

Add support for monad-control 1.0 #52

0.3.11

Add missing MonadState and MonadWriter instances for NoLoggingT #51

0.3.10.1

Remove unnecessary extra newline in log messages.

0.3.10

Introduce the MonadLoggerIO typeclass.

0.3.9

Add missing MonadError NoLoggingT instance #49

0.3.8

Simplify constraint on MonadLogger (NoLoggingT m) from MonadIO m to Monad m Github issue #48.