monad-logger

A class of monads which can log messages.

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

Version on this page:	0.3.32
LTS Haskell 21.24:	0.3.40
Stackage Nightly 2023-12-10:	0.3.40
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-0.3.32@sha256:edb8a030012e4cf6dc19930ec36f846eeafcc9d871bd5bf0e863d78f6878b877,1755

Module documentation for 0.3.32

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 21 packages in lts-15.3(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

ChangeLog for monad-logger

0.3.32

Compat with unliftio-core 0.2

0.3.31

Re-export fromLogStr to make implementing custom instances more convenient. #14

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.