Use hindent

2 files changed, 64 insertions, 55 deletions

diff --git a/.hindent.yaml b/.hindent.yaml
new file mode 100644
index 0000000..3dba089
--- /dev/null
+++ b/.hindent.yaml
@@ -0,0 +1,3 @@
+indent-size: 2
+line-length: 80
+force-trailing-newline: true
diff --git a/src/Main.hs b/src/Main.hs
index deae4c2..3d76f38 100644
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -1,36 +1,45 @@
 {-# LANGUAGE QuasiQuotes #-}
-module Main (
-  main
-) where
+
+module Main
+  ( main
+  ) where
 
 import Data.ByteString.Char8 (unpack)
 import Data.Char (toLower)
 import Data.HashMap.Strict (fromListWith, toList)
 import Data.Maybe (fromJust, fromMaybe)
 import Data.Version (showVersion)
-import LDAP.Init (ldapSimpleBind, ldapExternalSaslBind, ldapInitialize)
-import LDAP.Modify (LDAPMod(..), LDAPModOp(..), ldapAdd, ldapDelete, ldapModify, list2ldm)
-import LDAP.Search (LDAPScope(LdapScopeBase), SearchAttributes(LDAPAllUserAttrs), LDAPEntry(..), ldapSearch)
+import LDAP.Init
+       (ldapExternalSaslBind, ldapInitialize, ldapSimpleBind)
+import LDAP.Modify
+       (LDAPMod(..), LDAPModOp(..), ldapAdd, ldapDelete, ldapModify,
+        list2ldm)
+import LDAP.Search
+       (LDAPEntry(..), LDAPScope(LdapScopeBase),
+        SearchAttributes(LDAPAllUserAttrs), ldapSearch)
 import LDAP.Types (LDAP)
 import Paths_ldapply (version) -- from cabal
+import qualified System.Console.Docopt.NoTH as O
 import System.Environment (getArgs)
 import System.Exit (die)
 import System.IO (IOMode(ReadMode), hGetLine, hIsEOF, withFile)
 import Text.InterpolatedString.Perl6 (qc)
 import Text.LDIF.Parser (defaulLDIFConf, parseLDIFFile)
 import Text.LDIF.Printer (dn2str)
-import Text.LDIF.Types (Attribute(..), Value(..), Change(..), LDIF(..), LDIFRecord(..), Modify(..), reDN)
-import qualified System.Console.Docopt.NoTH as O
+import Text.LDIF.Types
+       (Attribute(..), Change(..), LDIF(..), LDIFRecord(..), Modify(..),
+        Value(..), reDN)
 
 {--
  TODO:
     1. Streaming from stdin (good for large amount of LDIF data)
 --}
-
 usage :: String
 usage =
-    "ldapply " ++ showVersion version ++
-    " - LDIF dempotent apply tool" ++ [qc|
+  "ldapply " ++
+  showVersion version ++
+  " - LDIF dempotent apply tool" ++
+  [qc|
 
 Usage:
   ldapply [options] LDIF...
@@ -48,103 +57,101 @@ Options:
 If option -w is given, -y is ignored.
 |]
 
-
 main :: IO ()
 main = do
   doco <- O.parseUsageOrExit usage
   args <- O.parseArgsOrExit doco =<< getArgs
   if args `O.isPresent` O.longOption "help"
-  then putStrLn $ O.usage doco
-  else do
-    let
-      ldifs = O.getAllArgs args $ O.argument "LDIF"
-      ldapUrl = fromJust $ O.getArg args $ O.shortOption 'H'
-      simple = O.isPresent args $ O.shortOption 'x'
-      binddn = fromMaybe "" $ O.getArg args $ O.shortOption 'D'
-      passwd = O.getArg args $ O.shortOption 'w'
-      passwdfile = O.getArg args $ O.shortOption 'y'
-    ldap <- ldapInitialize ldapUrl
-    if simple then simpleBind ldap binddn passwd passwdfile
-              else ldapExternalSaslBind ldap binddn
-    mapM_ (processLDIF ldap) ldifs
-
+    then putStrLn $ O.usage doco
+    else do
+      let ldifs = O.getAllArgs args $ O.argument "LDIF"
+          ldapUrl = fromJust $ O.getArg args $ O.shortOption 'H'
+          simple = O.isPresent args $ O.shortOption 'x'
+          binddn = fromMaybe "" $ O.getArg args $ O.shortOption 'D'
+          passwd = O.getArg args $ O.shortOption 'w'
+          passwdfile = O.getArg args $ O.shortOption 'y'
+      ldap <- ldapInitialize ldapUrl
+      if simple
+        then simpleBind ldap binddn passwd passwdfile
+        else ldapExternalSaslBind ldap binddn
+      mapM_ (processLDIF ldap) ldifs
 
 simpleBind :: LDAP -> String -> Maybe String -> Maybe FilePath -> IO ()
-simpleBind ldap bdn (Just pwd)  _    = ldapSimpleBind ldap bdn pwd
-simpleBind ldap bdn Nothing Nothing  = ldapSimpleBind ldap bdn ""
+simpleBind ldap bdn (Just pwd) _ = ldapSimpleBind ldap bdn pwd
+simpleBind ldap bdn Nothing Nothing = ldapSimpleBind ldap bdn ""
 simpleBind ldap bdn Nothing (Just f) = do
-  pwd <- withFile f ReadMode $ \h -> do
-    empty <- hIsEOF h
-    if empty then return "" else hGetLine h
+  pwd <-
+    withFile f ReadMode $ \h -> do
+      empty <- hIsEOF h
+      if empty
+        then return ""
+        else hGetLine h
   ldapSimpleBind ldap bdn pwd
 
-
 processLDIF :: LDAP -> FilePath -> IO ()
 processLDIF ldap f = do
   p <- parseLDIFFile defaulLDIFConf f
   case p of
-    Left err          -> die $ show err
+    Left err -> die $ show err
     Right (LDIF _ rs) -> mapM_ (apply ldap) rs
 
-
 apply :: LDAP -> LDIFRecord -> IO ()
 apply ldap rec = do
   putStrLn $ "looking for " ++ show (dn rec)
-  entries <- ldapSearch ldap (Just $ dn rec) LdapScopeBase Nothing LDAPAllUserAttrs False
+  entries <-
+    ldapSearch ldap (Just $ dn rec) LdapScopeBase Nothing LDAPAllUserAttrs False
   case entries of
-    []  -> do
+    [] -> do
       putStrLn $ "not found " ++ show (dn rec)
       update ldap Nothing rec
     [e] -> do
       putStrLn $ "found " ++ show (dn rec)
       update ldap (Just e) rec
-    _   -> die $ "internal error: too many entries in response (only 1 or 0 expected): "
-                 ++ show (length entries)
-
+    _ ->
+      die $
+      "internal error: too many entries in response (only 1 or 0 expected): " ++
+      show (length entries)
 
 update :: LDAP -> Maybe LDAPEntry -> LDIFRecord -> IO ()
 update _ Nothing (ChangeRecord _ ChangeDelete) = return ()
-
 update _ Nothing rec@(ChangeRecord _ _) =
   die $ "cannot update non-existing entry " ++ show (dn rec)
-
-update ldap (Just _) rec@(ChangeRecord _ ch)= do
+update ldap (Just _) rec@(ChangeRecord _ ch) = do
   putStrLn $ "modifing " ++ show (dn rec)
   change ldap (dn rec) ch
-
 update ldap Nothing rec@(ContentRecord _ av) = do
   putStrLn $ "adding " ++ show (dn rec)
   ldapAdd ldap (dn rec) . list2ldm LdapModAdd . collect $ av
-
-update ldap (Just (LDAPEntry _ attrs)) rec@(ContentRecord _ av)= do
+update ldap (Just (LDAPEntry _ attrs)) rec@(ContentRecord _ av) = do
   putStrLn $ "replacing " ++ show (dn rec)
   ldapModify ldap (dn rec) (replace ++ delete)
   where
     replace = list2ldm LdapModReplace newAttrs
     delete = list2ldm LdapModDelete oldAttrs
     newAttrs = collect av
-    oldAttrs = [ a | a@(v, _) <- attrs, notElem (low v) $ map fst newAttrs ]
-
+    oldAttrs = [a | a@(v, _) <- attrs, notElem (low v) $ map fst newAttrs]
 
 change :: LDAP -> String -> Change -> IO ()
-change _    _ ChangeModDN      = die "modrdn is not supported"
-change ldap n (ChangeAdd av)   = ldapModify ldap n . list2ldm LdapModAdd . collect $ av
+change _ _ ChangeModDN = die "modrdn is not supported"
+change ldap n (ChangeAdd av) =
+  ldapModify ldap n . list2ldm LdapModAdd . collect $ av
 change ldap n (ChangeModify m) = ldapModify ldap n . map mod2mod $ m
-change ldap n ChangeDelete     = ldapDelete ldap n
+change ldap n ChangeDelete = ldapDelete ldap n
 
 mod2mod :: Modify -> LDAPMod
-mod2mod (ModAdd     a vv) = LDAPMod LdapModAdd     (attr2str a) (map val2str vv)
-mod2mod (ModDelete  a vv) = LDAPMod LdapModDelete  (attr2str a) (map val2str vv)
+mod2mod (ModAdd a vv) = LDAPMod LdapModAdd (attr2str a) (map val2str vv)
+mod2mod (ModDelete a vv) = LDAPMod LdapModDelete (attr2str a) (map val2str vv)
 mod2mod (ModReplace a vv) = LDAPMod LdapModReplace (attr2str a) (map val2str vv)
 
 collect :: [(Attribute, Value)] -> [(String, [String])]
-collect = toList . fromListWith (++) . map (\(a, v) -> (attr2str a, [val2str v]))
+collect =
+  toList . fromListWith (++) . map (\(a, v) -> (attr2str a, [val2str v]))
 
 attr2str :: Attribute -> String
 attr2str (Attribute a) = low . unpack $ a
 
 val2str :: Value -> String
-val2str (Value  v) = unpack v
+val2str (Value v) = unpack v
 val2str (ValueI v) = unpack v
 
 dn :: LDIFRecord -> String
@@ -152,4 +159,3 @@ dn = unpack . dn2str . reDN
 
 low :: String -> String
 low = map toLower
-