diff options
| author |  Benjamin Barenblat <bbarenblat@gmail.com> | 2022-01-19 13:04:08 -0500 |
|---|---|---|
| committer | Benjamin Barenblat <bbarenblat@gmail.com> | 2022-01-19 13:31:03 -0500 |
| commit | c79473051a8e1647b14f351b72768b74301acc33 (patch) | |
| tree | eb25ad044ab8e8b924b9fea02af4a264c998536e /CmdLine | |
| parent | 44df82dcbf72d01d2bbb6c0afacff329ca749854 (diff) | |
Deal with the MonadFail proposal
base-4.9 split MonadFail from Monad. Strengthen some type signatures to
require MonadFail instead of just Monad, derive MonadFail in relevant
places, and change a partial pattern match inside STM to one that
explicitly calls error. (STM is not a MonadFail; the user must
explicitly specify the desired semantics if a pattern match doesn’t work
out. In this case, the failing branch of the pattern should never be
reached, so crashing is fine.)
Diffstat (limited to 'CmdLine')
| -rw-r--r-- | CmdLine/GitAnnex/Options.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/CmdLine/GitAnnex/Options.hs b/CmdLine/GitAnnex/Options.hs index 143bb6498..2a6dc0ef9 100644 --- a/CmdLine/GitAnnex/Options.hs +++ b/CmdLine/GitAnnex/Options.hs @@ -1,6 +1,7 @@ {- git-annex command-line option parsing - - Copyright 2010-2018 Joey Hess <id@joeyh.name> + - Copyright 2022 Benjamin Barenblat <bbarenblat@gmail.com> - - Licensed under the GNU GPL version 3 or higher. -} @@ -182,7 +183,7 @@ parseAllOption = flag' WantAllKeys <> help "operate on all versions of all files" ) -parseKey :: Monad m => String -> m Key +parseKey :: MonadFail m => String -> m Key parseKey = maybe (fail "invalid key") return . file2key -- Options to match properties of annexed files. |