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27 lines
838 B
Haskell
27 lines
838 B
Haskell
module Vere.LockFile (lockFile) where
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import UrbitPrelude
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import Data.Default (def)
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import RIO.Directory (createDirectoryIfMissing)
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import System.IO.LockFile.Internal (LockingParameters(..), RetryStrategy(..),
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lock, unlock)
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--------------------------------------------------------------------------------
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lockFile :: HasLogFunc e => FilePath -> RAcquire e ()
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lockFile pax = void $ mkRAcquire start stop
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where
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fil = pax <> "/.vere.lock"
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stop handle = do
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logInfo $ display @Text $ ("Releasing lock file: " <> pack fil)
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io $ unlock fil handle
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params = def { retryToAcquireLock = No }
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start = do
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createDirectoryIfMissing True pax
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logInfo $ display @Text $ ("Taking lock file: " <> pack fil)
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io (lock params fil)
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