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From ad1e877d8e32bc3f573d92cadf697f0bb67a7da2 Mon Sep 17 00:00:00 2001
From: Jack Todaro <solpeth@posteo.org>
Date: Fri, 10 Jul 2020 07:01:08 +1000
Subject: [PATCH] Data.Git.Monad.hs: port to MonadFail proposal
Signed-off-by: Jack Todaro <solpeth@posteo.org>
---
Data/Git/Monad.hs | 30 ++++++++++++++++++++++--------
1 file changed, 22 insertions(+), 8 deletions(-)
diff --git a/Data/Git/Monad.hs b/Data/Git/Monad.hs
index 480af9f..44a7018 100644
--- a/Data/Git/Monad.hs
+++ b/Data/Git/Monad.hs
@@ -17,7 +17,7 @@
--
-- You can also easily create a new commit: see 'CommitM' and 'withNewCommit'
--
-
+{-# LANGUAGE CPP #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE Rank2Types #-}
@@ -74,7 +74,9 @@ module Data.Git.Monad
, Git.Person(..)
) where
-
+#if !MIN_VERSION_base(4,11,0)
+import qualified Control.Monad.Fail as Fail
+#endif
import Data.ByteString (ByteString)
import qualified Data.ByteString as B
import qualified Data.ByteString.Lazy as BL
@@ -240,7 +242,11 @@ instance Applicative GitM where
instance Monad GitM where
return = returnGitM
(>>=) = bindGitM
- fail = failGitM
+#if !MIN_VERSION_base(4,11,0)
+ fail = Fail.fail
+#endif
+instance MonadFail GitM where
+ fail = failGitM
instance GitMonad GitM where
getGit = getGitM
@@ -313,7 +319,11 @@ instance Applicative CommitAccessM where
instance Monad CommitAccessM where
return = returnCommitAccessM
(>>=) = bindCommitAccessM
- fail = failCommitAccessM
+#if !MIN_VERSION_base(4,11,0)
+ fail = Fail.fail
+#endif
+instance MonadFail CommitAccessM where
+ fail = failCommitAccessM
instance GitMonad CommitAccessM where
getGit = getCommitAccessM
@@ -423,7 +433,7 @@ getDir fp = do
-- > l <- getDir []
-- > liftGit $ print l
--
-withCommit :: (Resolvable ref, GitMonad git)
+withCommit :: (Resolvable ref, GitMonad git, MonadFail git)
=> ref
-- ^ the commit revision or reference to open
-> CommitAccessM a
@@ -474,7 +484,11 @@ instance Applicative CommitM where
instance Monad CommitM where
return = returnCommitM
(>>=) = bindCommitM
- fail = failCommitM
+#if !MIN_VERSION_base(4,11,0)
+ fail = Fail.fail
+#endif
+instance MonadFail CommitM where
+ fail = failCommitM
instance GitMonad CommitM where
getGit = getCommitM
@@ -599,7 +613,7 @@ deleteFile path = do
-- > setFile ["README.md"] $ readmeContent <> "just add some more description\n"
-- > branchWrite "master" r
--
-withNewCommit :: (GitMonad git, Resolvable rev)
+withNewCommit :: (GitMonad git, MonadFail git, Resolvable rev)
=> Git.Person
-- ^ by default a commit must have an Author and a Committer.
--
@@ -670,7 +684,7 @@ withNewCommit p mPrec m = do
-- )
-- @
--
-withBranch :: GitMonad git
+withBranch :: (GitMonad git, MonadFail git)
=> Git.Person
-- ^ the default Author and Committer (see 'withNewCommit')
-> Git.RefName
--
2.27.0
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