Z.IO.FileSystem.Watch

This module provides fs watcher based on libuv's fs_event, we also maintain watch list if target OS doesn't support recursive watch(Linux's inotify).

-- start watching threads, use returned close function to cleanup watching threads.
(close, srcf) <- watchDirs ["fold_to_be_watch"]
-- dup a file event source
src <- srcf
-- print event to stdout
runBIO $ src >|> sinkToIO printLineStd

Documentation

data FileEvent

File event with path info.

Constructors

FileAdd CBytes

FileRemove CBytes

FileModify CBytes

Instances

Eq FileEvent

Defined in Z.IO.FileSystem.Watch

Methods

(==) :: FileEvent -> FileEvent -> Bool

(/=) :: FileEvent -> FileEvent -> Bool

Ord FileEvent

Defined in Z.IO.FileSystem.Watch

Methods

compare :: FileEvent -> FileEvent -> Ordering

(<) :: FileEvent -> FileEvent -> Bool

(<=) :: FileEvent -> FileEvent -> Bool

(>) :: FileEvent -> FileEvent -> Bool

(>=) :: FileEvent -> FileEvent -> Bool

max :: FileEvent -> FileEvent -> FileEvent

min :: FileEvent -> FileEvent -> FileEvent

Read FileEvent

Defined in Z.IO.FileSystem.Watch

Methods

readsPrec :: Int -> ReadS FileEvent

readList :: ReadS [FileEvent]

readPrec :: ReadPrec FileEvent

readListPrec :: ReadPrec [FileEvent]

Show FileEvent

Defined in Z.IO.FileSystem.Watch

Methods

showsPrec :: Int -> FileEvent -> ShowS

show :: FileEvent -> String

showList :: [FileEvent] -> ShowS

Generic FileEvent

Defined in Z.IO.FileSystem.Watch

Associated Types

type Rep FileEvent :: Type -> Type

Methods

from :: FileEvent -> Rep FileEvent x

to :: Rep FileEvent x -> FileEvent

JSON FileEvent

Defined in Z.IO.FileSystem.Watch

Methods

fromValue :: Value -> Converter FileEvent

toValue :: FileEvent -> Value

encodeJSON :: FileEvent -> Builder ()

Print FileEvent

Defined in Z.IO.FileSystem.Watch

Methods

toUTF8BuilderP :: Int -> FileEvent -> Builder ()

type Rep FileEvent

Defined in Z.IO.FileSystem.Watch

type Rep FileEvent = D1 ('MetaData "FileEvent" "Z.IO.FileSystem.Watch" "Z-IO-0.4.0.0-yZ8PAxRS7u6ehgjyvfzwd" 'False) (C1 ('MetaCons "FileAdd" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 CBytes)) :+: (C1 ('MetaCons "FileRemove" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 CBytes)) :+: C1 ('MetaCons "FileModify" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 CBytes))))

watchDirs :: [CBytes] -> IO (IO (), IO (Source FileEvent))

Start watching a list of given directories.

watchDirsRecursively :: [CBytes] -> IO (IO (), IO (Source FileEvent))

Start watching a list of given directories recursively.