git-annex/Command/RecvKey.hs
Joey Hess 3a05d53761
add SeekInput (not yet used)
No behavior changes (hopefully), just adding SeekInput and plumbing it
through to the JSON display code for later use.

Over the course of 2 grueling days.

withFilesNotInGit reimplemented in terms of seekHelper
should be the only possible behavior change. It seems to test as
behaving the same.

Note that seekHelper dummies up the SeekInput in the case where
segmentPaths' gives up on sorting the expanded paths because there are
too many input paths. When SeekInput later gets exposed as a json field,
that will result in it being a little bit wrong in the case where
100 or more paths are passed to a git-annex command. I think this is a
subtle enough problem to not matter. If it does turn out to be a
problem, fixing it would require splitting up the input
parameters into groups of < 100, which would make git ls-files run
perhaps more than is necessary. May want to revisit this, because that
fix seems fairly low-impact.
2020-09-15 15:41:13 -04:00

48 lines
1.4 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Command.RecvKey where
import Command
import Annex.Content
import Annex.Action
import Annex
import Utility.Rsync
import Types.Transfer
import Command.SendKey (fieldTransfer)
import qualified CmdLine.GitAnnexShell.Fields as Fields
cmd :: Command
cmd = noCommit $ command "recvkey" SectionPlumbing
"runs rsync in server mode to receive content"
paramKey (withParams seek)
seek :: CmdParams -> CommandSeek
seek = withKeys (commandAction . start)
start :: (SeekInput, Key) -> CommandStart
start (_, key) = fieldTransfer Download key $ \_p -> do
-- Always verify content when a repo is sending an unlocked file,
-- as the file could change while being transferred.
fromunlocked <- (isJust <$> Fields.getField Fields.unlocked)
<||> (isJust <$> Fields.getField Fields.direct)
let verify = if fromunlocked then AlwaysVerify else DefaultVerify
-- This matches the retrievalSecurityPolicy of Remote.Git
let rsp = RetrievalAllKeysSecure
ifM (getViaTmp rsp verify key go)
( do
-- forcibly quit after receiving one key,
-- and shutdown cleanly
_ <- shutdown True
return True
, return False
)
where
go tmp = unVerified $ do
opts <- filterRsyncSafeOptions . maybe [] words
<$> getField "RsyncOptions"
liftIO $ rsyncServerReceive (map Param opts) tmp