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authorGravatar Joey Hess <joey@kitenet.net>2014-02-19 14:14:44 -0400
committerGravatar Joey Hess <joey@kitenet.net>2014-02-19 14:17:58 -0400
commitade0216bd08c2f9c1ed10c1c2274fd5b071c9c93 (patch)
tree6097def98c91ec5a0b6b9a694ab5b4b4137063c0 /Command/PreCommit.hs
parent8d0b3f09a9effc71f729d5b820076c642b605eb4 (diff)
pre-commit: Update metadata when committing changes to annexed files within a view.
So the user can now switch to a view and then move files around within it to manage metadata. For example, moving a file into a new directory when in the tags=* view adds a tag to it. Implementation is fairly efficient. One diff-index, which is no more expensive than the first stage of a git commit, followed by possibly some cat-file --batch traffic to find the key (when deleting a file). Very similar to what's done in direct mode when committing. And like direct mode when updating the WC after a merge, it has to buffer the diff-tree values in order to make 2 passes over them. When not in a view, pre-commit now does one extra git symbolic-ref, which is tiny overhead. This commit was sponsored by Andrew Eskridge.
Diffstat (limited to 'Command/PreCommit.hs')
-rw-r--r--Command/PreCommit.hs47
1 files changed, 43 insertions, 4 deletions
diff --git a/Command/PreCommit.hs b/Command/PreCommit.hs
index 388d065c0..4b90b5c2e 100644
--- a/Command/PreCommit.hs
+++ b/Command/PreCommit.hs
@@ -1,6 +1,6 @@
{- git-annex command
-
- - Copyright 2010, 2013 Joey Hess <joey@kitenet.net>
+ - Copyright 2010-2014 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
@@ -13,6 +13,13 @@ import Config
import qualified Command.Add
import qualified Command.Fix
import Annex.Direct
+import Annex.View
+import Logs.View
+import Logs.MetaData
+import Types.View
+import Types.MetaData
+
+import qualified Data.Set as S
def :: [Command]
def = [command "pre-commit" paramPaths seek SectionPlumbing
@@ -27,13 +34,45 @@ seek ps = ifM isDirect
withFilesToBeCommitted (whenAnnexed Command.Fix.start) ps
-- inject unlocked files into the annex
withFilesUnlockedToBeCommitted startIndirect ps
+ -- committing changes to a view updates metadata
+ mv <- currentView
+ case mv of
+ Nothing -> noop
+ Just v -> withViewChanges
+ (addViewMetaData v)
+ (removeViewMetaData v)
)
startIndirect :: FilePath -> CommandStart
-startIndirect file = next $ do
- unlessM (callCommandAction $ Command.Add.start file) $
- error $ "failed to add " ++ file ++ "; canceling commit"
+startIndirect f = next $ do
+ unlessM (callCommandAction $ Command.Add.start f) $
+ error $ "failed to add " ++ f ++ "; canceling commit"
next $ return True
startDirect :: [String] -> CommandStart
startDirect _ = next $ next $ preCommitDirect
+
+addViewMetaData :: View -> FileView -> Key -> CommandStart
+addViewMetaData v f k = do
+ showStart "metadata" f
+ next $ next $ changeMetaData k $ fromView v f
+
+removeViewMetaData :: View -> FileView -> Key -> CommandStart
+removeViewMetaData v f k = do
+ showStart "metadata" f
+ next $ next $ changeMetaData k $ unsetMetaData $ fromView v f
+
+changeMetaData :: Key -> MetaData -> CommandCleanup
+changeMetaData k metadata = do
+ showMetaDataChange metadata
+ addMetaData k metadata
+ return True
+
+showMetaDataChange :: MetaData -> Annex ()
+showMetaDataChange = showLongNote . unlines . concatMap showmeta . fromMetaData
+ where
+ showmeta (f, vs) = map (showmetavalue f) $ S.toList vs
+ showmetavalue f v = fromMetaField f ++ showset v ++ "=" ++ fromMetaValue v
+ showset v
+ | isSet v = "+"
+ | otherwise = "-"