Formatting with Stylish

.stylish-haskell.yaml

@@ -0,0 +1,63 @@
+# stylish-haskell configuration file
+# ==================================
+
+# The stylish-haskell tool is mainly configured by specifying steps. These steps
+# are a list, so they have an order, and one specific step may appear more than
+# once (if needed). Each file is processed by these steps in the given order.
+steps:
+  # Import cleanup
+  - imports:
+      # There are different ways we can align names and lists.
+      #
+      # - global: Align the import names and import list throughout the entire
+      #   file.
+      #
+      # - file: Like global, but don't add padding when there are no qualified
+      #   imports in the file.
+      #
+      # - group: Only align the imports per group (a group is formed by adjacent
+      #   import lines).
+      #
+      # - none: Do not perform any alignment.
+      #
+      # Default: global.
+      align: file
+
+  # Language pragmas
+  - language_pragmas:
+      # We can generate different styles of language pragma lists.
+      #
+      # - vertical: Vertical-spaced language pragmas, one per line.
+      #
+      # - compact: A more compact style.
+      #
+      # - compact_line: Similar to compact, but wrap each line with
+      #   `{-#LANGUAGE #-}'.
+      #
+      # Default: vertical.
+      style: vertical
+
+      # stylish-haskell can detect redundancy of some language pragmas. If this
+      # is set to true, it will remove those redundant pragmas. Default: true.
+      remove_redundant: true
+
+  # Replace tabs by spaces. This is disabled by default.
+  # - tabs:
+  #     # Number of spaces to use for each tab. Default: 8, as specified by the
+  #     # Haskell report.
+  #     spaces: 8
+
+  # Remove trailing whitespace
+  - trailing_whitespace: {}
+
+# A common setting is the number of columns (parts of) code will be wrapped
+# to. Different steps take this into account. Default: 80.
+columns: 94
+
+# Sometimes, language extensions are specified in a cabal file or from the
+# command line instead of using language pragmas in the file. stylish-haskell
+# needs to be aware of these, so it can parse the file correctly.
+#
+# No language extensions are enabled by default.
+language_extensions:
+  - MultiParamTypeClasses

main/labsat-cli.hs

@@ -4,9 +4,9 @@
 
 -- | LabSat telnet interface
 --
+import Labsat
 import Options.Generic
 import Preamble
-import Labsat
 
 -- | Args
 --

src/Labsat.hs

@@ -1,24 +1,24 @@
-{-# LANGUAGE FlexibleContexts    #-}
-{-# LANGUAGE NoImplicitPrelude   #-}
-{-# LANGUAGE OverloadedStrings   #-}
+{-# LANGUAGE FlexibleContexts  #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE OverloadedStrings #-}
 
 module Labsat where
 
-import           Control.Concurrent.Async.Lifted   (race_)
-import           Control.Concurrent.Lifted         (threadDelay)
+import           Control.Concurrent.Async.Lifted (race_)
+import           Control.Concurrent.Lifted       (threadDelay)
 import           Data.Attoparsec.ByteString
-import qualified Data.ByteString               as BS
-import qualified Data.ByteString.Char8         as C
+import qualified Data.ByteString                 as BS
+import qualified Data.ByteString.Char8           as C
 import           Data.Conduit
 import           Data.Conduit.Attoparsec
-import qualified Data.Conduit.Binary           as B
+import qualified Data.Conduit.Binary             as B
 import           Data.Conduit.Network
-import           Data.Text.Encoding               (encodeUtf8)
+import           Data.Text.Encoding              (encodeUtf8)
 import           Labsat.Ctx
 import           Labsat.Parser
 import           Labsat.Types
 import           Preamble
-import           System.IO                 hiding (print, putStrLn)
+import           System.IO                       hiding (print, putStrLn)
 
 
 --------------------------------------------------------------------------------

src/Labsat/Ctx.hs

@@ -1,7 +1,7 @@
-{-# LANGUAGE ConstraintKinds     #-}
-{-# LANGUAGE FlexibleContexts    #-}
-{-# LANGUAGE NoImplicitPrelude   #-}
-{-# LANGUAGE TemplateHaskell     #-}
+{-# LANGUAGE ConstraintKinds   #-}
+{-# LANGUAGE FlexibleContexts  #-}
+{-# LANGUAGE NoImplicitPrelude #-}
+{-# LANGUAGE TemplateHaskell   #-}
 
 module Labsat.Ctx where
 

src/Labsat/Parser.hs

@@ -1,14 +1,15 @@
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE OverloadedStrings   #-}
+{-# LANGUAGE OverloadedStrings #-}
 
 module Labsat.Parser where
 
 
-import qualified Data.ByteString as BS
 import           Data.Attoparsec.ByteString
-import           Data.Attoparsec.ByteString.Char8 (char, decimal, double, isDigit_w8, isEndOfLine, scientific, signed)
+import           Data.Attoparsec.ByteString.Char8 (char, decimal, double, isDigit_w8,
+                                                   isEndOfLine, scientific, signed)
+import qualified Data.ByteString                  as BS
 import           Labsat.Types
-import           Preamble hiding (takeWhile)
+import           Preamble                         hiding (takeWhile)
 
 
 --------------------------------------------------------------------------------