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|
{- Git configuration
-
- Copyright 2011 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Config where
import Data.Maybe
import Control.Monad.State (liftIO)
import qualified Git
import qualified Annex
import Types
import Utility
type ConfigKey = String
{- Changes a git config setting in both internal state and .git/config -}
setConfig :: ConfigKey -> String -> Annex ()
setConfig k value = do
g <- Annex.gitRepo
liftIO $ Git.run g "config" [Param k, Param value]
-- re-read git config and update the repo's state
g' <- liftIO $ Git.configRead g
Annex.changeState $ \s -> s { Annex.repo = g' }
{- Looks up a per-remote config setting in git config.
- Failing that, tries looking for a global config option. -}
getConfig :: Git.Repo -> ConfigKey -> String -> Annex String
getConfig r key def = do
g <- Annex.gitRepo
let def' = Git.configGet g ("annex." ++ key) def
return $ Git.configGet g (remoteConfig r key) def'
remoteConfig :: Git.Repo -> ConfigKey -> String
remoteConfig r key = "remote." ++ fromMaybe "" (Git.repoRemoteName r) ++ ".annex-" ++ key
{- Calculates cost for a remote.
-
- The default cost is 100 for local repositories, and 200 for remote
- repositories; it can also be configured by remote.<name>.annex-cost
-}
remoteCost :: Git.Repo -> Int -> Annex Int
remoteCost r def = do
c <- getConfig r "cost" ""
if not $ null c
then return $ read c
else return def
cheapRemoteCost :: Int
cheapRemoteCost = 100
semiCheapRemoteCost :: Int
semiCheapRemoteCost = 110
expensiveRemoteCost :: Int
expensiveRemoteCost = 200
{- Adjust's a remote's cost to reflect it being encrypted. -}
encryptedRemoteCostAdj :: Int
encryptedRemoteCostAdj = 50
{- Make sure the remote cost numbers work out. -}
prop_cost_sane :: Bool
prop_cost_sane = False `notElem`
[ expensiveRemoteCost > 0
, cheapRemoteCost < semiCheapRemoteCost
, semiCheapRemoteCost < expensiveRemoteCost
, cheapRemoteCost + encryptedRemoteCostAdj > semiCheapRemoteCost
, cheapRemoteCost + encryptedRemoteCostAdj < expensiveRemoteCost
, semiCheapRemoteCost + encryptedRemoteCostAdj < expensiveRemoteCost
]
{- Checks if a repo should be ignored, based either on annex-ignore
- setting, or on command-line options. Allows command-line to override
- annex-ignore. -}
remoteNotIgnored :: Git.Repo -> Annex Bool
remoteNotIgnored r = do
ignored <- getConfig r "ignore" "false"
to <- match Annex.toremote
from <- match Annex.fromremote
if to || from
then return True
else return $ not $ Git.configTrue ignored
where
match a = do
n <- Annex.getState a
return $ n == Git.repoRemoteName r
{- If a value is specified, it is used; otherwise the default is looked up
- in git config. forcenumcopies overrides everything. -}
getNumCopies :: Maybe Int -> Annex Int
getNumCopies v =
Annex.getState Annex.forcenumcopies >>= maybe (use v) (return . id)
where
use (Just n) = return n
use Nothing = do
g <- Annex.gitRepo
return $ read $ Git.configGet g config "1"
config = "annex.numcopies"
|
