add routes to pause/start/cancel transfers

This commit includes a paydown on technical debt incurred two years ago,
when I didn't know that it was bad to make custom Read and Show instances
for types. As the routes need Read and Show for Transfer, which includes a
Key, and deriving my own Read instance of key was not practical,
I had to finally clean that up.

So the compact Key read and show functions are now file2key and key2file,
and Read and Show are now derived instances.

Changed all code that used the old instances, compiler checked.
(There were a few places, particularly in Command.Unused, and the test
suite where the Show instance continue to be used for legitimate
comparisons; ie show key_x == show key_y (though really in a bloom filter))

1 files changed, 3 insertions, 2 deletions

diff --git a/Command/Fsck.hs b/Command/Fsck.hs
index 0e3cc934c..89ba0eef8 100644
--- a/Command/Fsck.hs
+++ b/Command/Fsck.hs
@@ -26,6 +26,7 @@ import Utility.DataUnits
 import Utility.FileMode
 import Config
 import qualified Option
+import Types.Key
 
 def :: [Command]
 def = [withOptions options $ command "fsck" paramPaths seek
@@ -114,7 +115,7 @@ startBare :: Key -> CommandStart
 startBare key = case Backend.maybeLookupBackendName (Types.Key.keyBackendName key) of
 	Nothing -> stop
 	Just backend -> do
-		showStart "fsck" (show key)
+		showStart "fsck" (key2file key)
 		next $ performBare key backend
 
 {- Note that numcopies cannot be checked in a bare repository, because
@@ -122,7 +123,7 @@ startBare key = case Backend.maybeLookupBackendName (Types.Key.keyBackendName ke
  - files. -}
 performBare :: Key -> Backend -> CommandPerform
 performBare key backend = check
-	[ verifyLocationLog key (show key)
+	[ verifyLocationLog key (key2file key)
 	, checkKeySize key
 	, checkBackend backend key
 	]