diff --git a/HUnitAug.hs b/HUnitAug.hs
new file mode 100644
--- /dev/null
+++ b/HUnitAug.hs
@@ -0,0 +1,324 @@
+-- file: HUnitAug.hs
+
+-- Haskell bindings for the Augeas library
+-- Copyright (c) 2009, Jude Nagurney
+--
+-- This program is free software; you can redistribute it and/or modify it
+-- under the terms of the GNU General Public License as published by the Free
+-- Software Foundation; either version 2 of the License, or (at your option)
+-- any later version.
+--
+-- This program is distributed in the hope that it will be useful, but
+-- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License along with this program;
+-- if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+-- MA 02111-1307 USA
+--
+-- Contact the author at
+-- jude@pwan.org
+
+module Main where
+
+import Test.HUnit
+import System.Augeas
+-- import AugeasHsc
+import Data.ByteString.Char8
+
+import Foreign
+import Foreign.ForeignPtr
+
+import Directory
+import Data.List (isInfixOf)
+import IO
+
+-- constants
+bs_BadPath = (Data.ByteString.Char8.pack "/files/bad/path")
+
+-- testBadRoot :: Test
+-- testBadRoot = TestCase (do
+-- aug_ptr <- aug_init (Data.ByteString.Char8.pack "./bad_testroot") empty []
+-- assertEqual "Should get Nothing after a bad root" Nothing aug_ptr)
+
+with_augptr func = do cwd <- getCurrentDirectory
+ maybe_aug_ptr <- aug_init (Data.ByteString.Char8.pack (cwd++"/testroot")) empty [save_newfile]
+ case maybe_aug_ptr of
+ Nothing -> assertFailure "aug_ptr shouldn't be nothing in with_augptr"
+ Just aug_fp -> (withForeignPtr aug_fp $ \aug_ptr -> func aug_ptr)
+
+-- -------------
+-- aug_get tests
+-- -------------
+
+testGetBadPath :: Test
+testGetBadPath = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_get <- aug_get aug_ptr bs_BadPath
+ assertEqual "Bad path in get" (Left no_match) ret_get
+ )
+
+testGetPartialPath :: Test
+testGetPartialPath = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_get <- aug_get aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts")
+ assertEqual "Partial path returns none" (Right Nothing) ret_get
+ )
+
+testGetStillPartialPath :: Test
+testGetStillPartialPath = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_get <- aug_get aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1")
+ assertEqual "Partial path returns none" (Right Nothing) ret_get
+ )
+
+testGetBadLabel :: Test
+testGetBadLabel = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_get <- aug_get aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1/invalid")
+ assertEqual "Bad label in get" (Left no_match) ret_get
+ )
+
+testGetGoodLabel :: Test
+testGetGoodLabel = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_get <- aug_get aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1/canonical")
+ assertEqual "Should have gotten localhost" (Right (Just "localhost")) ret_get
+ )
+
+testGetMultipleLabel :: Test
+testGetMultipleLabel = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_get <- aug_get aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/*/canonical")
+ assertEqual "Get should return a negative on multiple matches" (Left invalid_match) ret_get
+ )
+
+testGetBadMultipleLabel :: Test
+testGetBadMultipleLabel = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_get <- aug_get aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/*/invalid")
+ assertEqual "Get should return a negative on multiple matches" (Left invalid_match) ret_get
+ )
+
+-- -------------
+-- aug_set tests
+-- -------------
+
+testSetLabel :: Test
+testSetLabel = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_set <- aug_set aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "haskell-augeas.org")
+ assertEqual "set OK" success ret_set
+ ret_get <- aug_get aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical")
+ assertEqual "set OK" (Right (Just "haskell-augeas.org")) ret_get
+ )
+
+testSetMultiMatch :: Test
+testSetMultiMatch = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_set <- aug_set aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/*/canonical") (Data.ByteString.Char8.pack "haskell-augeas.org")
+ assertEqual "set OK" System.Augeas.error ret_set
+ )
+
+-- ----------------
+-- aug_insert tests
+-- ----------------
+testInsertBadPath :: Test
+testInsertBadPath = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_insert <- aug_insert aug_ptr bs_BadPath (Data.ByteString.Char8.pack "label") just_after
+ assertEqual "Bad path in insert" System.Augeas.error ret_insert
+ )
+
+testInsertMultiMatch :: Test
+testInsertMultiMatch = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_insert <- aug_insert aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/*/canonical") (Data.ByteString.Char8.pack "label") just_after
+ assertEqual "No multimatches on insert" System.Augeas.error ret_insert
+ )
+
+testInsertBeforeAfter :: Test
+testInsertBeforeAfter = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_set <- aug_set aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "haskell-augeas.org")
+ assertEqual "set OK" success ret_set
+
+ ret_insert <- aug_insert aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "after") just_after
+ assertEqual "Insert after success" success ret_insert
+
+ ret_insert <- aug_insert aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "before") just_before
+ assertEqual "Insert before success" success ret_insert
+
+ (match_count, (Just matches)) <- aug_match aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/*")
+ assertEqual "Should be 3 matches" 3 match_count
+ assertEqual "insert matches" ["/files/etc/hosts/1000/before","/files/etc/hosts/1000/canonical","/files/etc/hosts/1000/after"] matches
+ )
+
+-- ------------
+-- aug_rm tests
+-- ------------
+testRmBadPath :: Test
+testRmBadPath = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_rm <- aug_rm aug_ptr bs_BadPath
+ assertEqual "Bad path in rm" 0 ret_rm
+ )
+
+testRmOne :: Test
+testRmOne = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_set <- aug_set aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "haskell-augeas.org")
+ assertEqual "set OK" success ret_set
+
+ ret_rm <- aug_rm aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical")
+ assertEqual "rm 1" 1 ret_rm
+ )
+
+testRmTwo :: Test
+testRmTwo = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_set <- aug_set aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "haskell-augeas.org")
+ assertEqual "set success" success ret_set
+
+ ret_insert <- aug_insert aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "after") just_after
+ assertEqual "insert success" success ret_insert
+
+ ret_rm <- aug_rm aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/*")
+ assertEqual "rm 2" 2 ret_rm
+ )
+
+-- ------------
+-- aug_mv tests
+-- ------------
+testMvBadSrc :: Test
+testMvBadSrc = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_mv <- aug_mv aug_ptr bs_BadPath (Data.ByteString.Char8.pack "/files/etc/hosts/1/badpath")
+ assertEqual "mv bad src" System.Augeas.error ret_mv
+ )
+
+testMvNewDest :: Test
+testMvNewDest = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_set <- aug_set aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "haskell-augeas.org")
+ assertEqual "set OK" success ret_set
+
+ ret_mv <- aug_mv aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "/files/etc/hosts/1001/canonical")
+ assertEqual "mv 1000-> 1001 OK" success ret_mv
+
+ ret_get <- aug_get aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1001/canonical")
+ assertEqual "get 1001 OK" (Right (Just "haskell-augeas.org")) ret_get
+
+ ret_get <- aug_get aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical")
+ assertEqual "get 1000 OK" (Left no_match) ret_get
+ )
+
+-- ---------------
+-- aug_match tests
+-- ---------------
+testMatchBadSrc :: Test
+testMatchBadSrc = TestCase ( with_augptr $ \aug_ptr -> do
+ (match_count, matches) <- aug_match aug_ptr bs_BadPath
+ assertEqual "match count bad src" 0 match_count
+ assertEqual "matches bad src" (Just []) matches
+ )
+
+testMatchOne :: Test
+testMatchOne = TestCase ( with_augptr $ \aug_ptr -> do
+ (match_count, matches) <- aug_match aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1/canonical")
+ assertEqual "match count good label" 1 match_count
+ assertEqual "match good label" (Just ["/files/etc/hosts/1/canonical"]) matches
+ )
+
+testMatchMultiple :: Test
+testMatchMultiple = TestCase ( with_augptr $ \aug_ptr -> do
+ (match_count, matches) <- aug_match aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/*/canonical")
+ assertEqual "match count good label" 9 match_count
+ )
+-- TODO: Test that forces -1 return value from aug_match
+
+-- --------
+-- aug_save
+-- --------
+testSave :: Test
+testSave = TestCase ( with_augptr $ \aug_ptr -> do
+ ret_save <- aug_save aug_ptr
+ assertEqual "save good" success ret_save
+ )
+
+testSaveNewLabel = TestCase ( with_augptr $ \aug_ptr -> do
+
+ ret_set <- aug_set aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/ipaddr") (Data.ByteString.Char8.pack "192.168.1.234")
+ assertEqual "set OK" success ret_set
+
+ ret_set <- aug_set aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000/canonical") (Data.ByteString.Char8.pack "haskell-augeas.org")
+ assertEqual "set OK" success ret_set
+
+ ret_save <- aug_save aug_ptr
+ assertEqual "save good" success ret_save
+
+ cwd <- getCurrentDirectory
+ contents <- Prelude.readFile (cwd++"/testroot/etc/hosts.augnew")
+ assertEqual "Check augnew" (Data.List.isInfixOf "192.168.1.234\thaskell-augeas.org" contents) True
+
+ ret_rm <- aug_rm aug_ptr (Data.ByteString.Char8.pack "/files/etc/hosts/1000")
+ assertEqual "Bad path in rm" 3 ret_rm
+
+ ret_save <- aug_save aug_ptr
+ assertEqual "save good" success ret_save
+
+ contents <- Prelude.readFile (cwd++"/testroot/etc/hosts.augnew")
+ assertEqual "Check augnew" (Data.List.isInfixOf "192.168.1.234\thaskell-augeas.org" contents) False
+
+ )
+
+-- ---------
+-- aug_print
+-- ---------
+testPrint :: Test
+testPrint = TestCase ( with_augptr $ \aug_ptr -> do
+ cwd <- getCurrentDirectory
+
+ fptr_Output <- openFile (cwd++"/HUnitAug.txt") WriteMode
+ ret_print <- aug_print aug_ptr fptr_Output (Data.ByteString.Char8.pack "/files/etc/hosts")
+ IO.hPutStr fptr_Output "That's all folks"
+ hFlush fptr_Output
+ hClose fptr_Output
+
+ contents <- IO.readFile (cwd++"/HUnitAug.txt")
+ assertEqual ("check aug_print") (Data.List.isInfixOf "/files/etc/hosts\n" contents) True
+ assertEqual ("check after aug_print") (Data.List.isInfixOf "That's all folks" contents) True
+ removeFile (cwd++"/HUnitAug.txt")
+
+ )
+
+main :: IO Counts
+main = runTestTT $ TestList [
+ -- testBadRoot,
+
+ -- aug_get tests
+ testGetBadPath,
+ testGetPartialPath,
+ testGetStillPartialPath,
+ testGetBadLabel,
+ testGetGoodLabel,
+ testGetMultipleLabel,
+ testGetBadMultipleLabel,
+
+ -- aug_set tests
+ testSetLabel,
+ testSetMultiMatch,
+
+ -- aug_insert tests
+ testInsertBadPath,
+ testInsertMultiMatch,
+ testInsertBeforeAfter,
+
+ -- aug_rm tests
+ testRmBadPath,
+ testRmOne,
+ testRmTwo,
+
+ -- aug_mv tests
+ testMvBadSrc,
+ testMvNewDest,
+
+ -- aug_match tests
+ testMatchBadSrc,
+ testMatchOne,
+ testMatchMultiple,
+
+ -- aug_save tests
+ testSave,
+ testSaveNewLabel,
+
+ -- aug_print tests
+ testPrint
+
+ -- aug_close already handled in ForeignPtr, so there's no need to surface it to Haskell users at all.
+
+
+ ]
diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
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+.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,55 @@
+#!/usr/bin/env runhaskell
+
+-- file: Setup.hs
+
+-- Haskell bindings for the Augeas library
+-- Copyright (c) 2009, Jude Nagurney
+--
+-- This program is free software; you can redistribute it and/or modify it
+-- under the terms of the GNU General Public License as published by the Free
+-- Software Foundation; either version 2 of the License, or (at your option)
+-- any later version.
+--
+-- This program is distributed in the hope that it will be useful, but
+-- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License along with this program;
+-- if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+-- MA 02111-1307 USA
+--
+-- Contact the author at
+-- jude@pwan.org
+
+import Data.List (isInfixOf)
+import Distribution.PackageDescription
+import Distribution.Simple
+import System.Process
+
+-- main = defaultMain
+
+-- Thanks http://mechablue.livejournal.com/11055.html
+main = defaultMainWithHooks simpleUserHooks { runTests = _runTests, instHook = _instHook }
+ where
+ -- Run all executables with names that end in -tests
+ _runTests _ _ pd _ = do
+ let exeNames = ["dist/build/" ++ fp ++ "/" ++ fp | fp <- map exeName (executables pd)]
+ sequence [_runTest e | e <- exeNames, isInfixOf "test-" e]
+ return ()
+ _runTest fp = do
+ ph <- runCommand fp
+ waitForProcess ph
+
+ -- Only install executables that don't end in -tests
+ _instHook pd lbi uhs ifs = do
+ let execs = filter (\e -> not $ isInfixOf "test-" (exeName e)) (executables pd)
+ (instHook simpleUserHooks) (pd {executables = execs}) lbi uhs ifs
+
+--tests _ _ _ _ = do
+---- setCurrentDirectory "src"
+-- h <- runCommand "/usr/bin/env runghc -laugeas HUnitAug"
+-- waitForProcess h
+-- return ()
+
+
+
diff --git a/System/Augeas.hs b/System/Augeas.hs
new file mode 100644
--- /dev/null
+++ b/System/Augeas.hs
@@ -0,0 +1,499 @@
+-- file: Setup.hs
+
+-- Haskell bindings for the Augeas library
+-- Copyright (c) 2009, Jude Nagurney
+--
+-- This program is free software; you can redistribute it and/or modify it
+-- under the terms of the GNU General Public License as published by the Free
+-- Software Foundation; either version 2 of the License, or (at your option)
+-- any later version.
+--
+-- This program is distributed in the hope that it will be useful, but
+-- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License along with this program;
+-- if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+-- MA 02111-1307 USA
+--
+-- Contact the author at
+-- jude@pwan.org
+
+{-# LANGUAGE CPP, ForeignFunctionInterface #-}
+
+{-|
+ This module provides FFI bindings for the Augeas API ().
+
+ /Note aug_close is not surfaced in the API because because the ForeignPtr returned by/
+ /aug_init uses aug_close as its finializer./
+-}
+module System.Augeas
+ (
+ -- * Types
+ Augeas
+ , AugFlag,
+ none, save_backup, save_newfile, type_check
+ , AugMatch
+ , exactly_one, no_match, invalid_match
+ , AugRet
+ , success, System.Augeas.error
+ , AugBefore
+ , just_before, just_after
+ -- * Functions
+ , aug_init
+ , aug_get
+ , aug_set
+ , aug_insert
+ , aug_rm
+ , aug_mv
+ , aug_match
+ , aug_save
+ , aug_print
+ ) where
+
+import System.IO
+import System.Posix.IO
+import System.Posix.Types
+import Foreign
+import Foreign.C.Types
+import Foreign.C.String
+import GHC.Handle
+import Data.ByteString
+
+import AugeasHsc
+
+-- --------------
+-- Augeas pointer
+-- --------------
+{-|
+ A pointer to the Augeas tree structure
+ Not using a typed pointer (as per RWH p416) because of the compiler warning
+-}
+--newtype Augeas = Augeas (Ptr Augeas)
+-- deriving (Eq, Show)
+type Augeas = ()
+
+-- ---------
+-- aug_match
+-- ---------
+
+{-|
+ The possible 'aug_get' return values.
+-}
+newtype AugMatch = AugMatch CInt
+ deriving (Eq, Show)
+
+{-|
+ Exactly one match was found.
+-}
+exactly_one :: AugMatch
+exactly_one = AugMatch 1
+
+{-|
+ No matches were found
+-}
+no_match :: AugMatch
+no_match = AugMatch 0
+
+{-|
+ Either an invalid paths, or multiple matches were found.
+-}
+invalid_match :: AugMatch
+invalid_match = AugMatch (-1)
+
+-- -------
+-- aug_ret
+-- -------
+{-|
+ The possible return values for the 'aug_set', 'aug_insert', 'aug_mv', 'aug_save', and 'aug_print' functions
+-}
+newtype AugRet = AugRet CInt
+ deriving (Eq, Show)
+
+{-|
+ The function worked as expected
+-}
+success :: AugRet
+success = AugRet 0
+
+{-|
+ The function failed
+-}
+error :: AugRet
+error = AugRet (-1)
+
+-- ----------
+-- aug_before
+-- ----------
+{-|
+ The possible BEFORE values fro the aug_insert function
+-}
+newtype AugBefore = AugBefore CInt
+ deriving (Eq, Show)
+
+{-|
+ Insert the LABEL just before the PATH
+-}
+just_before :: AugBefore
+just_before = AugBefore 1
+
+{-|
+ Insert the LABEL just after the PATH
+-}
+just_after :: AugBefore
+just_after = AugBefore 0
+
+-- utility functions
+
+combineFlags :: [AugFlag] -> AugFlag
+combineFlags = AugFlag . Prelude.foldr ((.|.) . unAugFlag) 0
+
+-- --------
+-- aug_init
+-- --------
+
+-- TODO: Replace loadpath string with a dedicated loadpath type ?
+foreign import ccall unsafe "augeas.h aug_init"
+ c_aug_init :: CString -> CString -> AugFlag -> IO (Ptr Augeas)
+
+{-|
+ Initialize the library.
+
+ Use ROOT as the filesystem root. If ROOT is NULL, use the value of the
+ environment variable AUGEAS_ROOT. If that doesn't exist either, use \"\/\".
+
+ LOADPATH is a colon-spearated list of directories that modules should be
+ searched in. This is in addition to the standard load path and the
+ directories in AUGEAS_LENS_LIB
+
+ FLAGS is a list of AugFlags
+
+ Return a ForeignPtr to the Augeas tree upon success. If initialization
+ fails, returns Nothing.
+
+ /Note that the ForeignPtr returned by the function is using aug_close as a finializer,/
+ /so aug_close is called automatically when the Augeas pointer goes out of scope./
+
+ /Therefore, there is no need to surface aug_close in the library./
+
+-}
+aug_init :: ByteString -- ^ ROOT
+ -> ByteString -- ^ LOADPATH
+ -> [AugFlag] -- ^ FLAGS
+ -> IO (Maybe (ForeignPtr Augeas)) -- ^ Augeas pointer
+aug_init bstr1 bstr2 flags =
+ useAsCString bstr1 $ \root -> do
+ useAsCString bstr2 $ \loadpath -> do
+ aug_ptr <- c_aug_init root loadpath (combineFlags flags)
+ if (aug_ptr == nullPtr)
+ then do
+ return Nothing
+ else do
+ ret_ptr <- newForeignPtr c_aug_close aug_ptr -- release with aug_close
+ return (Just ret_ptr)
+
+-- ---------
+-- aug_close
+-- ---------
+
+foreign import ccall unsafe "augeas.h &aug_close"
+ c_aug_close :: FinalizerPtr Augeas
+
+--{-|
+-- from augeas.h:
+-- Close this Augeas instance and free any storage associated with
+-- it. After running AUG_CLOSE, AUG is invalid and can not be used for any
+-- more operations.
+---}
+--aug_close :: FinalizerPtr Augeas
+--aug_close = c_aug_close
+
+-- -------
+-- aug_get
+-- -------
+foreign import ccall unsafe "augeas.h aug_get"
+ c_aug_get :: Ptr Augeas -- aug
+ -> CString -- path
+ -> Ptr CString -- value
+ -> IO (AugMatch) -- return_value
+
+{-|
+ Lookup the value associated with PATH. VALUE can be NULL, in which case
+ it is ignored. If VALUE is not NULL, it is used to return a pointer to
+ the value associated with PATH if PATH matches exactly one node. If PATH
+ matches no nodes or more than one node, *VALUE is set to NULL.
+
+ Return AugMatch.exactly_one if there is exactly one node matching PATH, AugMatch.no_match if there is none,
+ and AugMatch.invalid_match if there is more than one node matching PATH, or if
+ PATH is not a legal path expression.
+-}
+
+aug_get :: Ptr Augeas -- ^ Augeas pointer
+ -> ByteString -- ^ PATH
+ -> IO (Either AugMatch (Maybe String)) -- ^ Either AugMatch or VALUE
+aug_get aug_ptr bstr1 =
+ useAsCString bstr1 $ \path -> do
+ alloca $ \value -> do
+ ret <- c_aug_get aug_ptr path value
+ if ret == exactly_one
+ then do
+ if value == nullPtr
+ then do
+ return (Left ret)
+ else do
+ peeked <- peek value
+ if peeked == nullPtr
+ then do
+ return (Right Nothing)
+ else do
+ str_peeked <- peekCString peeked
+ return (Right (Just str_peeked))
+ else do
+ return (Left ret)
+
+-- -------
+-- aug_set
+-- -------
+foreign import ccall unsafe "augeas.h aug_set"
+ c_aug_set :: Ptr Augeas -- aug
+ -> CString -- path
+ -> CString -- value
+ -> IO (AugRet) -- return value
+
+{-|
+
+ Set the value associated with PATH to VALUE. VALUE is copied into the
+ internal data structure. Intermediate entries are created if they don't
+ exist.
+
+ Return AugRet.success on success, AugRet.error on error. It is an error if more than one
+ node matches PATH.
+
+-}
+aug_set :: Ptr Augeas -- ^ Augeas pointer
+ -> ByteString -- ^ PATH
+ -> ByteString -- ^ VALUE
+ -> IO (AugRet) -- ^ return value
+aug_set aug_ptr bs1 bs2 =
+ useAsCString bs1 $ \path -> do
+ useAsCString bs2 $ \value -> do
+ ret <- c_aug_set aug_ptr path value
+ return ret
+
+-- ----------
+-- aug_insert
+-- ----------
+foreign import ccall unsafe "augeas.h aug_insert"
+ c_aug_insert :: Ptr Augeas -- aug
+ -> CString -- path
+ -> CString -- label
+ -> AugBefore -- before
+ -> IO (AugRet) -- return value
+
+{-|
+
+ Create a new sibling LABEL for PATH by inserting into the tree just
+ before PATH if BEFORE == just_before or just after PATH if BEFORE == just_after.
+
+ PATH must match exactly one existing node in the tree, and LABEL must be
+ a label, i.e. not contain a '/', '*' or end with a bracketed index
+ '[N]'.
+
+ Return AugRet.success on success, and AugRet.error if the insertion fails.
+
+-}
+aug_insert :: Ptr Augeas -- ^ Augeas pointer
+ -> ByteString -- ^ PTH
+ -> ByteString -- ^ LABEL
+ -> AugBefore -- ^ BEFORE
+ -> IO (AugRet) -- ^ return value
+aug_insert aug_ptr bs1 bs2 before =
+ useAsCString bs1 $ \path -> do
+ useAsCString bs2 $ \label -> do
+ ret <- c_aug_insert aug_ptr path label before
+ return ret
+
+-- ------
+-- aug_rm
+-- ------
+foreign import ccall unsafe "augeas.h aug_rm"
+ c_aug_rm :: Ptr Augeas -- aug
+ -> CString -- path
+ -> IO (CInt) -- return value
+
+{-|
+
+ Remove path and all its children. Returns the number of entries removed.
+ All nodes that match PATH, and their descendants, are removed.
+
+-}
+aug_rm :: Ptr Augeas -- ^ Augeas pointer
+ -> ByteString -- ^ PATH
+ -> IO (CInt) -- ^ number of entries removed
+aug_rm aug_ptr bs_path =
+ useAsCString bs_path $ \path -> do
+ ret <- c_aug_rm aug_ptr path
+ return ret
+
+-- ------
+-- aug_mv
+-- ------
+foreign import ccall unsafe "augeas.h aug_mv"
+ c_aug_mv :: Ptr Augeas -- aug
+ -> CString -- src
+ -> CString -- dst
+ -> IO (AugRet) -- return value
+
+{- |
+ Move the node SRC to DST. SRC must match exactly one node in the
+ tree. DST must either match exactly one node in the tree, or may not
+ exist yet. If DST exists already, it and all its descendants are
+ deleted. If DST does not exist yet, it and all its missing ancestors are
+ created.
+
+ Note that the node SRC always becomes the node DST: when you move \/a\/b
+ to \/x, the node \/a\/b is now called \/x, no matter whether \/x existed
+ initially or not.
+
+ Return AugRet.success on success and AugRet.error on failure.
+-}
+aug_mv :: Ptr Augeas -- ^ Augeas pointer
+ -> ByteString -- ^ SRC
+ -> ByteString -- ^ DEST
+ -> IO (AugRet) -- ^ return value
+aug_mv aug_ptr bs_src bs_dst =
+ useAsCString bs_src $ \src -> do
+ useAsCString bs_dst $ \dst -> do
+ ret <- c_aug_mv aug_ptr src dst
+ return ret
+
+-- ---------
+-- aug_match
+-- ---------
+foreign import ccall unsafe "augeas.h aug_match"
+ c_aug_match :: Ptr Augeas -- aug
+ -> CString -- path
+ -> Ptr (Ptr CString) -- matches
+ -> IO (CInt) -- return value
+
+{-|
+ Return the number of matches of the path expression PATH in AUG. If
+ MATCHES is non-NULL, an array with the returned number of elements will
+ be allocated and filled with the paths of the matches. The caller must
+ free both the array and the entries in it. The returned paths are
+ sufficiently qualified to make sure that they match exactly one node in
+ the current tree.
+
+ If MATCHES is NULL, nothing is allocated and only the number
+ of matches is returned.
+
+ Returns -1 on error, or the total number of matches (which might be 0).
+
+ Path expressions use a very simple subset of XPath: the path PATH
+ consists of a number of segments, separated by '/'; each segment can
+ either be a '*', matching any tree node, or a string, optionally
+ followed by an index in brackets, matching tree nodes labelled with
+ exactly that string. If no index is specified, the expression matches
+ all nodes with that label; the index can be a positive number N, which
+ matches exactly the Nth node with that label (counting from 1), or the
+ special expression 'last()' which matches the last node with the given
+ label. All matches are done in fixed positions in the tree, and nothing
+ matches more than one path segment.
+
+-}
+
+aug_match :: Ptr Augeas -- ^ Augeas pointer
+ -> ByteString -- ^ PATH
+ -> IO (Int, Maybe [String]) -- ^ (match count, MATCHES)
+aug_match aug_ptr bs_path =
+ useAsCString bs_path $ \path -> do
+ alloca $ \matches -> do
+ ret <- c_aug_match aug_ptr path matches
+ if ret == -1
+ then do
+ return (-1, Nothing)
+ else do
+ matches_cstrs <- peekArray (fromIntegral ret) =<< peek matches
+
+ -- There's got to be a better way to map (IO [CString]) to (IO [String]) ...
+ matches_strs <- Prelude.foldr (\t io_l -> do s <- peekCString t; l <- io_l; return (s:l)) (return []) matches_cstrs
+
+ return (fromIntegral ret, Just matches_strs)
+
+-- --------
+-- aug_save
+-- --------
+foreign import ccall unsafe "augeas.h aug_save"
+ c_aug_save :: Ptr Augeas -- aug
+ -> IO (AugRet) -- return value
+
+{-|
+
+ Write all pending changes to disk.
+
+ Return AugRet.error if an error is encountered, AugRet.success on success.
+ Only files that had any changes made to them are written.
+
+ If AUG_SAVE_NEWFILE is set in the FLAGS passed to AUG_INIT, create
+ changed files as new files with the extension ".augnew", and leave teh
+ original file unmodified.
+
+ Otherwise, if AUG_SAVE_BACKUP is set in the FLAGS passed to AUG_INIT,
+ move the original file to a new file with extension ".augsave".
+
+ If neither of these flags is set, overwrite the original file.
+
+-}
+aug_save :: Ptr Augeas -- ^ Augeas pointer
+ -> IO (AugRet) -- ^ return value
+aug_save aug_ptr =
+ do
+ ret <- c_aug_save aug_ptr
+ return ret
+
+
+-- ---------
+-- aug_print
+-- ---------
+-- FILE *fdopen(int fildes, const char *mode);
+foreign import ccall "" fdopen :: Fd -> CString -> IO (Ptr CFile)
+
+foreign import ccall "" fflush :: (Ptr CFile) -> IO (Int)
+
+foreign import ccall "" fclose :: (Ptr CFile) -> IO (Int)
+
+handleToCFile :: Handle -> String -> IO (Ptr CFile)
+handleToCFile h m =
+ do iomode <- newCString m
+
+ -- Duplicate the handle, so the original stays open after the handleToFd call closes the duplicate
+ dup_h <- hDuplicate h
+ fd <- handleToFd dup_h
+ fdopen fd iomode
+
+-- surface aug_print
+foreign import ccall unsafe "augeas.h aug_print"
+ c_aug_print :: Ptr Augeas -- aug
+ -> Ptr CFile -- out
+ -> CString -- path
+ -> IO (AugRet) -- return value
+
+{-|
+ Print each node matching PATH and its descendants to OUT.
+ Return AugRet.success on success, or AugRet.error on failure
+
+-}
+
+aug_print :: Ptr Augeas -- ^ Augeas pointer
+ -> Handle -- ^ Already opened file handle
+ -> ByteString -- ^ PATH
+ -> IO (AugRet) -- ^ return value
+aug_print aug_ptr fptr_out bs_path =
+ do
+ useAsCString bs_path $ \path -> do
+ out <- handleToCFile fptr_out "w"
+ ret <- c_aug_print aug_ptr out path
+ fflush out
+ fclose out
+ return(ret)
+
diff --git a/augeas.cabal b/augeas.cabal
new file mode 100644
--- /dev/null
+++ b/augeas.cabal
@@ -0,0 +1,24 @@
+Name: augeas
+Version: 0.1
+Synopsis: A Haskell FFI wrapper for the Augeas API
+Description: A Haskell FFI wrapper for the Augeas API
+Author: Jude Nagurney
+Maintainer: jude@pwan.org
+Cabal-Version: >= 1.2
+License: GPL
+License-File: LICENSE
+Build-Type: Custom
+Category: System
+Stability: Alpha
+
+library
+ Exposed-Modules: System.Augeas
+ Build-Depends: base >= 2.0, bytestring >= 0.9.0.1, unix >=2.3.0.0, haskell98
+ GHC-options: -Wall -fwarn-dodgy-imports
+
+executable "test-haskell-augeas"
+ Main-is: HUnitAug.hs
+ Build-Depends: HUnit
+ Other-Modules: System.Augeas
+ extra-libraries: augeas
+