git-annex/Types/GitConfig.hs
Joey Hess a78eb6dd58
sync --only-annex and annex.synconlyannex
* Added sync --only-annex, which syncs the git-annex branch and annexed
  content but leaves managing the other git branches up to you.
* Added annex.synconlyannex git config setting, which can also be set with
  git-annex config to configure sync in all clones of the repo.

Use case is then the user has their own git workflow, and wants to use
git-annex without disrupting that, so they sync --only-annex to get the
git-annex stuff in sync in addition to their usual git workflow.

When annex.synconlyannex is set, --not-only-annex can be used to override
it.

It's not entirely clear what --only-annex --commit or --only-annex
--push should do, and I left that combination not documented because I
don't know if I might want to change the current behavior, which is that
such options do not override the --only-annex. My gut feeling is that
there is no good reasons to use such combinations; if you want to use
your own git workflow, you'll be doing your own committing and pulling
and pushing.

A subtle question is, how should import/export special remotes be handled?
Importing updates their remote tracking branch and merges it into master.
If --only-annex prevented that git branch stuff, then it would prevent
exporting to the special remote, in the case where it has changes that
were not imported yet, because there would be a unresolved conflict.

I decided that it's best to treat the fact that there's a remote tracking
branch for import/export as an implementation detail in this case. The more
important thing is that an import/export special remote is entirely annexed
content, and so it makes a lot of sense that --only-annex will still sync
with it.
2020-02-17 16:33:10 -04:00

381 lines
14 KiB
Haskell

{- git-annex configuration
-
- Copyright 2012-2019 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# LANGUAGE OverloadedStrings #-}
module Types.GitConfig (
Configurable(..),
ConfigSource(..),
GitConfig(..),
extractGitConfig,
mergeGitConfig,
RemoteGitConfig(..),
extractRemoteGitConfig,
dummyRemoteGitConfig,
) where
import Common
import qualified Git
import qualified Git.Config
import qualified Git.Construct
import Git.Types
import Git.ConfigTypes
import Git.Branch (CommitMode(..))
import Utility.DataUnits
import Config.Cost
import Types.UUID
import Types.Distribution
import Types.Availability
import Types.Concurrency
import Types.NumCopies
import Types.Difference
import Types.RefSpec
import Types.RepoVersion
import Config.DynamicConfig
import Utility.HumanTime
import Utility.Gpg (GpgCmd, mkGpgCmd)
import Utility.ThreadScheduler (Seconds(..))
import Utility.Url (Scheme, mkScheme)
import Control.Concurrent.STM
import qualified Data.Set as S
-- | A configurable value, that may not be fully determined yet because
-- the global git config has not yet been loaded.
data Configurable a
= HasGitConfig a
-- ^ The git config has a value.
| HasGlobalConfig a
-- ^ The global config has a value (and the git config does not).
| DefaultConfig a
-- ^ A default value is known, but not all config sources
-- have been read yet.
deriving (Show)
data ConfigSource = FromGitConfig | FromGlobalConfig
{- Main git-annex settings. Each setting corresponds to a git-config key
- such as annex.foo -}
data GitConfig = GitConfig
{ annexVersion :: Maybe RepoVersion
, annexUUID :: UUID
, annexNumCopies :: Maybe NumCopies
, annexDiskReserve :: Integer
, annexDirect :: Bool
, annexBackend :: Maybe String
, annexQueueSize :: Maybe Int
, annexBloomCapacity :: Maybe Int
, annexBloomAccuracy :: Maybe Int
, annexSshCaching :: Maybe Bool
, annexAlwaysCommit :: Bool
, annexCommitMessage :: Maybe String
, annexMergeAnnexBranches :: Bool
, annexDelayAdd :: Maybe Int
, annexHttpHeaders :: [String]
, annexHttpHeadersCommand :: Maybe String
, annexAutoCommit :: Configurable Bool
, annexResolveMerge :: Configurable Bool
, annexSyncContent :: Configurable Bool
, annexSyncOnlyAnnex :: Configurable Bool
, annexDebug :: Bool
, annexWebOptions :: [String]
, annexYoutubeDlOptions :: [String]
, annexAriaTorrentOptions :: [String]
, annexCrippledFileSystem :: Bool
, annexLargeFiles :: Configurable (Maybe String)
, annexGitAddToAnnex :: Bool
, annexAddSmallFiles :: Bool
, annexFsckNudge :: Bool
, annexAutoUpgrade :: AutoUpgrade
, annexExpireUnused :: Maybe (Maybe Duration)
, annexSecureEraseCommand :: Maybe String
, annexGenMetaData :: Bool
, annexListen :: Maybe String
, annexStartupScan :: Bool
, annexHardLink :: Bool
, annexThin :: Bool
, annexDifferences :: Differences
, annexUsedRefSpec :: Maybe RefSpec
, annexVerify :: Bool
, annexPidLock :: Bool
, annexPidLockTimeout :: Seconds
, annexAddUnlocked :: Configurable (Maybe String)
, annexSecureHashesOnly :: Bool
, annexRetry :: Maybe Integer
, annexRetryDelay :: Maybe Seconds
, annexAllowedUrlSchemes :: S.Set Scheme
, annexAllowedIPAddresses :: String
, annexAllowUnverifiedDownloads :: Bool
, annexMaxExtensionLength :: Maybe Int
, annexJobs :: Concurrency
, annexCacheCreds :: Bool
, annexAutoUpgradeRepository :: Bool
, annexCommitMode :: CommitMode
, coreSymlinks :: Bool
, coreSharedRepository :: SharedRepository
, receiveDenyCurrentBranch :: DenyCurrentBranch
, gcryptId :: Maybe String
, gpgCmd :: GpgCmd
}
extractGitConfig :: ConfigSource -> Git.Repo -> GitConfig
extractGitConfig configsource r = GitConfig
{ annexVersion = RepoVersion <$> getmayberead (annex "version")
, annexUUID = maybe NoUUID toUUID $ getmaybe (annex "uuid")
, annexNumCopies = NumCopies <$> getmayberead (annex "numcopies")
, annexDiskReserve = fromMaybe onemegabyte $
readSize dataUnits =<< getmaybe (annex "diskreserve")
, annexDirect = getbool (annex "direct") False
, annexBackend = maybe
-- annex.backends is the old name of the option, still used
-- when annex.backend is not set.
(headMaybe $ getwords (annex "backends"))
Just
(getmaybe (annex "backend"))
, annexQueueSize = getmayberead (annex "queuesize")
, annexBloomCapacity = getmayberead (annex "bloomcapacity")
, annexBloomAccuracy = getmayberead (annex "bloomaccuracy")
, annexSshCaching = getmaybebool (annex "sshcaching")
, annexAlwaysCommit = getbool (annex "alwayscommit") True
, annexCommitMessage = getmaybe (annex "commitmessage")
, annexMergeAnnexBranches = getbool (annex "merge-annex-branches") True
, annexDelayAdd = getmayberead (annex "delayadd")
, annexHttpHeaders = getlist (annex "http-headers")
, annexHttpHeadersCommand = getmaybe (annex "http-headers-command")
, annexAutoCommit = configurable True $
getmaybebool (annex "autocommit")
, annexResolveMerge = configurable True $
getmaybebool (annex "resolvemerge")
, annexSyncContent = configurable False $
getmaybebool (annex "synccontent")
, annexSyncOnlyAnnex = configurable False $
getmaybebool (annex "synconlyannex")
, annexDebug = getbool (annex "debug") False
, annexWebOptions = getwords (annex "web-options")
, annexYoutubeDlOptions = getwords (annex "youtube-dl-options")
, annexAriaTorrentOptions = getwords (annex "aria-torrent-options")
, annexCrippledFileSystem = getbool (annex "crippledfilesystem") False
, annexLargeFiles = configurable Nothing $
fmap Just $ getmaybe (annex "largefiles")
, annexGitAddToAnnex = getbool (annex "gitaddtoannex") True
, annexAddSmallFiles = getbool (annex "addsmallfiles") True
, annexFsckNudge = getbool (annex "fscknudge") True
, annexAutoUpgrade = toAutoUpgrade $ getmaybe (annex "autoupgrade")
, annexExpireUnused = maybe Nothing Just . parseDuration
<$> getmaybe (annex "expireunused")
, annexSecureEraseCommand = getmaybe (annex "secure-erase-command")
, annexGenMetaData = getbool (annex "genmetadata") False
, annexListen = getmaybe (annex "listen")
, annexStartupScan = getbool (annex "startupscan") True
, annexHardLink = getbool (annex "hardlink") False
, annexThin = getbool (annex "thin") False
, annexDifferences = getDifferences r
, annexUsedRefSpec = either (const Nothing) Just . parseRefSpec
=<< getmaybe (annex "used-refspec")
, annexVerify = getbool (annex "verify") True
, annexPidLock = getbool (annex "pidlock") False
, annexPidLockTimeout = Seconds $ fromMaybe 300 $
getmayberead (annex "pidlocktimeout")
, annexAddUnlocked = configurable Nothing $
fmap Just $ getmaybe (annex "addunlocked")
, annexSecureHashesOnly = getbool (annex "securehashesonly") False
, annexRetry = getmayberead (annex "retry")
, annexRetryDelay = Seconds
<$> getmayberead (annex "retrydelay")
, annexAllowedUrlSchemes = S.fromList $ map mkScheme $
maybe ["http", "https", "ftp"] words $
getmaybe (annex "security.allowed-url-schemes")
, annexAllowedIPAddresses = fromMaybe "" $
getmaybe (annex "security.allowed-ip-addresses")
<|>
getmaybe (annex "security.allowed-http-addresses") -- old name
, annexAllowUnverifiedDownloads = (== Just "ACKTHPPT") $
getmaybe (annex "security.allow-unverified-downloads")
, annexMaxExtensionLength = getmayberead (annex "maxextensionlength")
, annexJobs = fromMaybe NonConcurrent $
parseConcurrency =<< getmaybe (annex "jobs")
, annexCacheCreds = getbool (annex "cachecreds") True
, annexAutoUpgradeRepository = getbool (annex "autoupgraderepository") True
, annexCommitMode = if getbool (annex "allowsign") False
then ManualCommit
else AutomaticCommit
, coreSymlinks = getbool "core.symlinks" True
, coreSharedRepository = getSharedRepository r
, receiveDenyCurrentBranch = getDenyCurrentBranch r
, gcryptId = getmaybe "core.gcrypt-id"
, gpgCmd = mkGpgCmd (getmaybe "gpg.program")
}
where
getbool k d = fromMaybe d $ getmaybebool k
getmaybebool k = Git.Config.isTrueFalse' =<< getmaybe' k
getmayberead k = readish =<< getmaybe k
getmaybe = fmap fromConfigValue . getmaybe'
getmaybe' k = Git.Config.getMaybe k r
getlist k = map fromConfigValue $ Git.Config.getList k r
getwords k = fromMaybe [] $ words <$> getmaybe k
configurable d Nothing = DefaultConfig d
configurable _ (Just v) = case configsource of
FromGitConfig -> HasGitConfig v
FromGlobalConfig -> HasGlobalConfig v
annex k = ConfigKey $ "annex." <> k
onemegabyte = 1000000
{- Merge a GitConfig that comes from git-config with one containing
- repository-global defaults. -}
mergeGitConfig :: GitConfig -> GitConfig -> GitConfig
mergeGitConfig gitconfig repoglobals = gitconfig
{ annexAutoCommit = merge annexAutoCommit
, annexSyncContent = merge annexSyncContent
, annexSyncOnlyAnnex = merge annexSyncOnlyAnnex
, annexResolveMerge = merge annexResolveMerge
, annexLargeFiles = merge annexLargeFiles
, annexAddUnlocked = merge annexAddUnlocked
}
where
merge f = case f gitconfig of
HasGitConfig v -> HasGitConfig v
DefaultConfig d -> case f repoglobals of
HasGlobalConfig v -> HasGlobalConfig v
_ -> HasGitConfig d
HasGlobalConfig v -> HasGlobalConfig v
{- Per-remote git-annex settings. Each setting corresponds to a git-config
- key such as <remote>.annex-foo, or if that is not set, a default from
- annex.foo.
-
- Note that this is from the perspective of the local repository,
- it is not influenced in any way by the contents of the remote
- repository's git config.
-}
data RemoteGitConfig = RemoteGitConfig
{ remoteAnnexCost :: DynamicConfig (Maybe Cost)
, remoteAnnexIgnore :: DynamicConfig Bool
, remoteAnnexSync :: DynamicConfig Bool
, remoteAnnexPull :: Bool
, remoteAnnexPush :: Bool
, remoteAnnexReadOnly :: Bool
, remoteAnnexVerify :: Bool
, remoteAnnexCheckUUID :: Bool
, remoteAnnexTrackingBranch :: Maybe Git.Ref
, remoteAnnexTrustLevel :: Maybe String
, remoteAnnexStartCommand :: Maybe String
, remoteAnnexStopCommand :: Maybe String
, remoteAnnexAvailability :: Maybe Availability
, remoteAnnexSpeculatePresent :: Bool
, remoteAnnexBare :: Maybe Bool
, remoteAnnexRetry :: Maybe Integer
, remoteAnnexRetryDelay :: Maybe Seconds
, remoteAnnexAllowUnverifiedDownloads :: Bool
, remoteAnnexConfigUUID :: Maybe UUID
{- These settings are specific to particular types of remotes
- including special remotes. -}
, remoteAnnexShell :: Maybe String
, remoteAnnexSshOptions :: [String]
, remoteAnnexRsyncOptions :: [String]
, remoteAnnexRsyncUploadOptions :: [String]
, remoteAnnexRsyncDownloadOptions :: [String]
, remoteAnnexRsyncTransport :: [String]
, remoteAnnexGnupgOptions :: [String]
, remoteAnnexGnupgDecryptOptions :: [String]
, remoteAnnexRsyncUrl :: Maybe String
, remoteAnnexBupRepo :: Maybe String
, remoteAnnexTahoe :: Maybe FilePath
, remoteAnnexBupSplitOptions :: [String]
, remoteAnnexDirectory :: Maybe FilePath
, remoteAnnexAndroidDirectory :: Maybe FilePath
, remoteAnnexAndroidSerial :: Maybe String
, remoteAnnexGCrypt :: Maybe String
, remoteAnnexGitLFS :: Bool
, remoteAnnexDdarRepo :: Maybe String
, remoteAnnexHookType :: Maybe String
, remoteAnnexExternalType :: Maybe String
}
{- The Git.Repo is the local repository, which has the remote with the
- given RemoteName. -}
extractRemoteGitConfig :: Git.Repo -> RemoteName -> STM RemoteGitConfig
extractRemoteGitConfig r remotename = do
annexcost <- mkDynamicConfig readCommandRunner
(notempty $ getmaybe "cost-command")
(getmayberead "cost")
annexignore <- mkDynamicConfig unsuccessfullCommandRunner
(notempty $ getmaybe "ignore-command")
(getbool "ignore" False)
annexsync <- mkDynamicConfig successfullCommandRunner
(notempty $ getmaybe "sync-command")
(getbool "sync" True)
return $ RemoteGitConfig
{ remoteAnnexCost = annexcost
, remoteAnnexIgnore = annexignore
, remoteAnnexSync = annexsync
, remoteAnnexPull = getbool "pull" True
, remoteAnnexPush = getbool "push" True
, remoteAnnexReadOnly = getbool "readonly" False
, remoteAnnexCheckUUID = getbool "checkuuid" True
, remoteAnnexVerify = getbool "verify" True
, remoteAnnexTrackingBranch = Git.Ref <$>
( notempty (getmaybe "tracking-branch")
<|> notempty (getmaybe "export-tracking") -- old name
)
, remoteAnnexTrustLevel = notempty $ getmaybe "trustlevel"
, remoteAnnexStartCommand = notempty $ getmaybe "start-command"
, remoteAnnexStopCommand = notempty $ getmaybe "stop-command"
, remoteAnnexAvailability = getmayberead "availability"
, remoteAnnexSpeculatePresent = getbool "speculate-present" False
, remoteAnnexBare = getmaybebool "bare"
, remoteAnnexRetry = getmayberead "retry"
, remoteAnnexRetryDelay = Seconds
<$> getmayberead "retrydelay"
, remoteAnnexAllowUnverifiedDownloads = (== Just "ACKTHPPT") $
getmaybe ("security-allow-unverified-downloads")
, remoteAnnexConfigUUID = toUUID <$> getmaybe "config-uuid"
, remoteAnnexShell = getmaybe "shell"
, remoteAnnexSshOptions = getoptions "ssh-options"
, remoteAnnexRsyncOptions = getoptions "rsync-options"
, remoteAnnexRsyncDownloadOptions = getoptions "rsync-download-options"
, remoteAnnexRsyncUploadOptions = getoptions "rsync-upload-options"
, remoteAnnexRsyncTransport = getoptions "rsync-transport"
, remoteAnnexGnupgOptions = getoptions "gnupg-options"
, remoteAnnexGnupgDecryptOptions = getoptions "gnupg-decrypt-options"
, remoteAnnexRsyncUrl = notempty $ getmaybe "rsyncurl"
, remoteAnnexBupRepo = getmaybe "buprepo"
, remoteAnnexTahoe = getmaybe "tahoe"
, remoteAnnexBupSplitOptions = getoptions "bup-split-options"
, remoteAnnexDirectory = notempty $ getmaybe "directory"
, remoteAnnexAndroidDirectory = notempty $ getmaybe "androiddirectory"
, remoteAnnexAndroidSerial = notempty $ getmaybe "androidserial"
, remoteAnnexGCrypt = notempty $ getmaybe "gcrypt"
, remoteAnnexGitLFS = getbool "git-lfs" False
, remoteAnnexDdarRepo = getmaybe "ddarrepo"
, remoteAnnexHookType = notempty $ getmaybe "hooktype"
, remoteAnnexExternalType = notempty $ getmaybe "externaltype"
}
where
getbool k d = fromMaybe d $ getmaybebool k
getmaybebool k = Git.Config.isTrueFalse' =<< getmaybe' k
getmayberead k = readish =<< getmaybe k
getmaybe = fmap fromConfigValue . getmaybe'
getmaybe' k = mplus (Git.Config.getMaybe (key k) r)
(Git.Config.getMaybe (remotekey k) r)
getoptions k = fromMaybe [] $ words <$> getmaybe k
key k = ConfigKey $ "annex." <> k
remotekey k = ConfigKey $
"remote." <> encodeBS' remotename <> ".annex-" <> k
notempty :: Maybe String -> Maybe String
notempty Nothing = Nothing
notempty (Just "") = Nothing
notempty (Just s) = Just s
dummyRemoteGitConfig :: IO RemoteGitConfig
dummyRemoteGitConfig = atomically $
extractRemoteGitConfig Git.Construct.fromUnknown "dummy"