mirrors/git-annex
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages 1 Wiki Activity Actions

metadata: Added --remove-all.

Browse source 
Motivation is to remove all metadata when it gets copied from a previous
version of the file, and that is not deisrable.

This commit was supported by the NSF-funded DataLad project.
This commit is contained in:
Joey Hess 2017-09-28 12:36:10 -04:00
parent b4d13c75a1
commit 812d90022b
No known key found for this signature in database
GPG key ID: DB12DB0FF05F8F38
4 changed files with 23 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Types/MetaData.hs
View file

@ -244,12 +244,17 @@ removeEmptyFields (MetaData m) = MetaData $ M.filter (not . S.null) m
metaDataValues :: MetaField -> MetaData -> S.Set MetaValue
metaDataValues f (MetaData m) = fromMaybe S.empty (M.lookup f m)
mapMetaData :: (S.Set MetaValue -> S.Set MetaValue) -> MetaData -> MetaData
mapMetaData f (MetaData m) = MetaData (M.map f m)
{- Ways that existing metadata can be modified -}
data ModMeta
= AddMeta MetaField MetaValue
| DelMeta MetaField (Maybe MetaValue)
-- ^ delete value of a field. With Just, only that specific value
-- is deleted; with Nothing, all current values are deleted.
-- is deleted; with Nothing, all current values are deleted.a
| DelAllMeta
-- ^ delete all currently set metadata
| SetMeta MetaField (S.Set MetaValue)
-- ^ removes any existing values
| MaybeSetMeta MetaField MetaValue
@ -265,6 +270,9 @@ modMeta _ (DelMeta f (Just oldv)) =
updateMetaData f (unsetMetaValue oldv) emptyMetaData
modMeta m (DelMeta f Nothing) = MetaData $ M.singleton f $
S.fromList $ map unsetMetaValue $ S.toList $ currentMetaDataValues f m
modMeta m DelAllMeta = mapMetaData
(S.fromList . map unsetMetaValue . S.toList)
(currentMetaData m)
modMeta m (SetMeta f s) = updateMetaData' f s $
foldr (updateMetaData f) emptyMetaData $
map unsetMetaValue $ S.toList $ currentMetaDataValues f m