1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
{-# HLINT ignore "Use for_" #-}
module Daffm.Action.Commands where
import qualified Brick as M
import qualified Brick.Widgets.List as L
import Control.Monad (forM_)
import Control.Monad.IO.Class (MonadIO (liftIO))
import Control.Monad.State (gets, modify)
import Daffm.Action.Cmdline
import Daffm.Action.Core
import Daffm.Keymap (parseKeySequence)
import Daffm.Types
import Daffm.Utils (trim, trimStart)
import Data.Bifunctor (Bifunctor (second))
import Data.Char (isSpace)
import qualified Data.Map as Map
import Data.Maybe (fromMaybe)
import qualified Data.Text as Text
import qualified Data.Text.IO as Text
import qualified System.Process as Proc
import Text.Read (readMaybe)
runCmdline :: AppEvent ()
runCmdline = do
cmd <- getCmdlineText
leaveCmdline
evaluateCommand cmd
parseCommand :: Text.Text -> Maybe Command
parseCommand (Text.stripPrefix "!!" -> Just cmd) = Just $ CmdShell True cmd
parseCommand (Text.stripPrefix "!" -> Just cmd) = Just $ CmdShell False cmd
parseCommand (Text.stripPrefix "/" -> Just term) = Just $ CmdSearch $ trim term
parseCommand cmd = mkCmd . splitCmdArgs $ trimStart cmd
where
splitCmdArgs = second trimStart . Text.break isSpace
mkCmd = \case
("q", _) -> Just CmdQuit
("quit", _) -> Just CmdQuit
("shell!", cmd') -> Just $ CmdShell True cmd'
("shell", cmd') -> Just $ CmdShell False cmd'
("eval", cmd') -> Just $ CmdCommandShell cmd'
("back", _) -> Just CmdGoBack
("open", _) -> Just CmdOpenSelection
("reload", _) -> Just CmdReload
("cd", dir) -> Just $ CmdChangeDir dir
("noop", _) -> Just CmdNoop
("cmdline-enter", _) -> Just CmdEnterCmdline
("cmdline-leave", _) -> Just CmdLeaveCmdline
("cmdline-set", txt) -> Just $ CmdSetCmdline txt
("selection-toggle", _) -> Just CmdToggleSelection
("selection-clear", _) -> Just CmdClearSelection
("search", term) -> Just $ CmdSearch $ trim term
("search-next", _) -> Just $ CmdSearchNext 1
("search-prev", _) -> Just $ CmdSearchNext (-1)
("map", Text.break isSpace -> (keysraw, cmdraw)) -> do
keys <- parseKeySequence keysraw
cmd' <- parseCommand $ trimStart cmdraw
pure $ CmdKeymapSet keys cmd'
("move", Text.stripPrefix "$" -> Just _) -> Just $ CmdMove MoveToEnd
("move", Text.stripPrefix "+" -> Just inc) -> Just . CmdMove . MoveDown . read $ Text.unpack inc
("move", Text.stripPrefix "-" -> Just inc) -> Just . CmdMove . MoveUp . read $ Text.unpack inc
("move", readMaybe . Text.unpack -> Just pos) -> Just . CmdMove . MoveTo $ pos
(cmd', args) -> Just $ CmdCustom cmd' args
readCommandLines :: Text.Text -> IO [Text.Text]
readCommandLines cmd = do
Proc.withCreateProcess
(Proc.shell $ Text.unpack cmd)
{ Proc.delegate_ctlc = True,
Proc.std_in = Proc.NoStream,
Proc.std_out = Proc.CreatePipe,
Proc.std_err = Proc.NoStream
}
$ \_ stdout _ p -> do
_ <- Proc.waitForProcess p
Text.lines <$> maybe (pure "") Text.hGetContents stdout
argSubst :: Text.Text -> Text.Text -> Text.Text
argSubst = Text.replace "%args"
processCommand :: Command -> CustomArgs -> AppEvent ()
processCommand (CmdShell waitForKey cmd) args = do
cmdSubstitutions (argSubst args cmd) >>= suspendAndRunShellCommand waitForKey
reloadDir
processCommand (CmdCommandShell cmd) args = do
stdout <- cmdSubstitutions (argSubst args cmd) >>= liftIO . readCommandLines
forM_ stdout runIfCmd
reloadDir
where
runIfCmd (Text.stripPrefix "<daffm>" -> Just cmd') =
processCommand (fromMaybe CmdNoop (parseCommand cmd')) args
runIfCmd _ = pure ()
processCommand CmdQuit _args = M.halt
processCommand (CmdSetCmdline txt) args = enterCmdline >> cmdSubstitutions (argSubst args txt) >>= setCmdlineText
processCommand CmdEnterCmdline _args = enterCmdline
processCommand CmdLeaveCmdline _args = leaveCmdline
processCommand CmdOpenSelection _args = openSelectedFile
processCommand (CmdChangeDir dir) args = cmdSubstitutions (argSubst args dir) >>= changeDir
processCommand CmdReload _args = reloadDir
processCommand CmdToggleSelection _args = toggleCurrentFileSelection
processCommand CmdClearSelection _args = clearFileSelections
processCommand CmdGoBack _ = goBackToParentDir
processCommand (CmdChain chain) args = forM_ chain (`processCommand` args)
processCommand (CmdSearch term) _ = setSearchTerm term >> applySearch >> nextSearchMatch
processCommand (CmdSearchNext change) _ = updateSearchIndex (+ change) >> nextSearchMatch
processCommand (CmdKeymapSet keys command) _ =
modify $ \st -> st {stateKeyMap = Map.insert keys command $ stateKeyMap st}
processCommand (CmdMove move) _ = moveCursor $ toUpdater move
where
toUpdater MoveToEnd = L.listMoveToEnd
toUpdater (MoveTo pos) = L.listMoveTo pos
toUpdater (MoveUp inc) = L.listMoveBy $ -inc
toUpdater (MoveDown inc) = L.listMoveBy inc
moveCursor :: (L.List FocusTarget FileInfo -> L.List FocusTarget FileInfo) -> AppEvent ()
moveCursor updater = do
files <- gets $ updater . stateFiles
modify $ \st -> st {stateFiles = files}
processCommand (CmdCustom cmd args) _ = do
myCmd <- gets $ Map.lookup cmd . stateCustomCommands
case myCmd of
Just command -> processCommand command args
Nothing -> pure ()
processCommand CmdNoop _ = pure ()
evaluateCommand :: Text.Text -> AppEvent ()
evaluateCommand cmdtxt =
case parseCommand cmdtxt of
Just cmd -> processCommand cmd ""
Nothing -> pure ()
|
