add annex.used-refspec

Command/Unused.hs

@@ -53,7 +53,9 @@ seek = withNothing start
 {- Finds unused content in the annex. -} 
 start :: CommandStart
 start = do
-	!refspec <- maybe allRefSpec (either error id . parseRefSpec)
+	cfgrefspec <- fromMaybe allRefSpec . annexUsedRefSpec
+		<$> Annex.getGitConfig
+	!refspec <- maybe cfgrefspec (either error id . parseRefSpec)
 		<$> Annex.getField (optionName refSpecOption)
 	from <- Annex.getField (optionName unusedFromOption)
 	let (name, action) = case from of

Types/GitConfig.hs

@@ -22,6 +22,7 @@ import Types.Distribution
 import Types.Availability
 import Types.NumCopies
 import Types.Difference
+import Types.RefSpec
 import Utility.HumanTime
 
 {- Main git-annex settings. Each setting corresponds to a git-config key
@@ -59,6 +60,7 @@ data GitConfig = GitConfig
 	, coreSymlinks :: Bool
 	, gcryptId :: Maybe String
 	, annexDifferences :: Differences
+	, annexUsedRefSpec :: Maybe RefSpec
 	}
 
 extractGitConfig :: Git.Repo -> GitConfig
@@ -97,6 +99,8 @@ extractGitConfig r = GitConfig
 	, coreSymlinks = getbool "core.symlinks" True
 	, gcryptId = getmaybe "core.gcrypt-id"
 	, annexDifferences = getDifferences r
+	, annexUsedRefSpec = either (const Nothing) Just . parseRefSpec 
+		=<< getmaybe (annex "used-refspec")
 	}
   where
 	getbool k d = fromMaybe d $ getmaybebool k

debian/changelog

@@ -18,8 +18,9 @@ git-annex (5.20150508.2) UNRELEASED; urgency=medium
     running at once.
   * Stale transfer lock and info files will be cleaned up automatically
     when get/unused/info commands are run.
-  * unused: Add --used option, which can specify a set of refs to consider
-    used, rather than the default of considering all refs used.
+  * unused: Add --used option and annex.used-refspec, which can specify
+    a set of refs to consider used, rather than the default of considering
+    all refs used.
 
  -- Joey Hess <id@joeyh.name>  Mon, 11 May 2015 12:45:06 -0400
 

doc/git-annex-unused.mdwn

@@ -36,7 +36,10 @@ For example, to move all unused data to origin:
   is not in the specified refs (and not used by the work tree) will then be
   considered unused.
 
-# REFSPEC
+  The git configuration annex.used-refspec can be used to configure
+  this in a more permanent fashion.
+
+# REFSPEC FORMAT
 
 The refspec format for --used-refspec is a colon-separated list of
 additions and removals of refs. For example:

doc/git-annex.mdwn

@@ -813,6 +813,11 @@ Here are all the supported configuration settings.
   When importfeed is used, it stores additional metadata from the feed,
   such as the author, title, etc.
 
+* `annex.used-refspec`
+
+  This controls which refs `git-annex unused` considers to be used.
+  See REFSPEC FORMAT in [[git-annex-unused]](1) for details.
+
 * `annex.queuesize`
 
   git-annex builds a queue of git commands, in order to combine similar