unused: Write .git/annex/unused etc files with appropriate permissions for the core.sharedRepository config.

This commit was sponsored by an anonymous bitcoin donor.

CHANGELOG

@@ -11,6 +11,8 @@ git-annex (6.20171215) UNRELEASED; urgency=medium
   * addurl: Fix encoding of filename queried from youtube-dl when in
     --fast mode.
   * git-annex.cabal: Add back custom-setup stanza, so cabal new-build works.
+  * unused: Write .git/annex/unused etc files with appropriate permissions
+    for the core.sharedRepository config.
 
  -- Joey Hess <id@joeyh.name>  Wed, 20 Dec 2017 12:11:46 -0400
 

Logs/Unused.hs

@@ -33,6 +33,7 @@ import Data.Time
 
 import Annex.Common
 import qualified Annex
+import Annex.Perms
 import Utility.Tmp
 import Logs.TimeStamp
 
@@ -64,10 +65,13 @@ updateUnusedLog prefix m = do
 writeUnusedLog :: FilePath -> UnusedLog -> Annex ()
 writeUnusedLog prefix l = do
 	logfile <- fromRepo $ gitAnnexUnusedLog prefix
-	liftIO $ viaTmp writeFile logfile $ unlines $ map format $ M.toList l
+	viaTmp writelog logfile $ unlines $ map format $ M.toList l
   where
 	format (k, (i, Just t)) = show i ++ " " ++ key2file k ++ " " ++ show t
 	format (k, (i, Nothing)) = show i ++ " " ++ key2file k
+	writelog f c = do
+		liftIO $ writeFile f c
+		setAnnexFilePerm f
 
 readUnusedLog :: FilePath -> Annex UnusedLog
 readUnusedLog prefix = do

doc/bugs/wrong_permissions_of_unused__44___badunused_and_tmpunused__63__.mdwn

@@ -69,3 +69,5 @@ This is somewhat expected, because the permissions of `unused`, `badunused` and
     -rw------- 1 ele testgroup  101 dic 19 14:50 unused
 
 If this is the intended behavior, could you please explain me how to use `git annex unused` and `dropunused` in a shared repository?
+
+> Fixed all of this I was able to reproduce. [[done]] --[[Joey]]

doc/bugs/wrong_permissions_of_unused__44___badunused_and_tmpunused__63__/comment_2_252800c3f4df5a5219e7f13c2b6ef841._comment

@@ -0,0 +1,9 @@
+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 2"""
+ date="2018-01-02T20:17:03Z"
+ content="""
+Fixed, but I was not able to reproduce the part where dropunused failed
+with a permissions error involving .git/annex/misctmp, despite having it
+set up the same as you did.
+"""]]