git annex get from exports

Straightforward enough, except for the needed belt-and-suspenders sanity
checks to avoid foot shooting due to exports not being key/value stores.

* Even when annex.verify=false, always verify from exports.
* Only get files from exports that use a backend that supports
  checksum verification.
* Never trust exports, even if the user says to, because then
  `git annex drop` would drop content if the export seemed to contain
  a copy.

This commit was supported by the NSF-funded DataLad project.
This commit is contained in:
Joey Hess 2017-09-04 16:39:56 -04:00
parent 4da763439b
commit 662f2a5ee7
No known key found for this signature in database
GPG key ID: DB12DB0FF05F8F38
8 changed files with 90 additions and 21 deletions

View file

@ -159,7 +159,7 @@ unVerified a = do
-- The FilePath will be relative, and may contain unix-style path
-- separators.
newtype ExportLocation = ExportLocation FilePath
deriving (Eq)
deriving (Show, Eq)
data ExportActions a = ExportActions
{ exportSupported :: a Bool

View file

@ -21,7 +21,7 @@ import Types.UUID
-- This order may seem backwards, but we generally want to list dead
-- remotes last and trusted ones first.
data TrustLevel = Trusted | SemiTrusted | UnTrusted | DeadTrusted
deriving (Eq, Enum, Ord, Bounded)
deriving (Eq, Enum, Ord, Bounded, Show)
instance Default TrustLevel where
def = SemiTrusted