From 5765ce1b2d45848bb5e187334b7e708c6d4168aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edward=20Tj=C3=B6rnhammar?= <ed@cflags.cc>
Date: Thu, 2 Oct 2014 20:53:55 +0200
Subject: [PATCH 1/4] here: added package

---
 .../libraries/haskell/here/default.nix        | 20 +++++++++++++++++++
 pkgs/top-level/haskell-packages.nix           |  2 ++
 2 files changed, 22 insertions(+)
 create mode 100644 pkgs/development/libraries/haskell/here/default.nix

diff --git a/pkgs/development/libraries/haskell/here/default.nix b/pkgs/development/libraries/haskell/here/default.nix
new file mode 100644
index 000000000000..2179ad0d85f0
--- /dev/null
+++ b/pkgs/development/libraries/haskell/here/default.nix
@@ -0,0 +1,20 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+# The file was later edited to add the state patch.
+# https://github.com/np/here/commit/3c16a4e4ce16c08904454972c0d9b43007d1c0cc
+
+{ cabal, haskellSrcMeta, mtl, parsec, fetchpatch }:
+
+cabal.mkDerivation (self: {
+  pname = "here";
+  version = "1.2.5";
+  sha256 = "0r7hjsvbx7vshbdhi60955mdfnq6arg5ihfz9f2zyilh4l5cyzwb";
+  buildDepends = [ haskellSrcMeta mtl parsec ];
+  patches = [ (fetchpatch { url = "https://github.com/np/here/commit/3c16a4e4ce16c08904454972c0d9b43007d1c0cc.patch"; sha256 = "1qibwbcpnl1cg35zvvdd2k8nr6bgd36qbla3naim3g08qaapm82h"; }) ];
+  meta = with self.stdenv.lib; {
+    homepage = "https://github.com/tmhedberg/here";
+    description = "Here docs & interpolated strings via quasiquotation";
+    license = licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = with maintainers; [ edwtjo ];
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 943dd6e2f153..0a4b2f2328e4 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1105,6 +1105,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   heredoc = callPackage ../development/libraries/haskell/heredoc {};
 
+  here = callPackage ../development/libraries/haskell/here {};
+
   hexpat = callPackage ../development/libraries/haskell/hexpat {};
 
   hex = callPackage ../development/libraries/haskell/hex {};

From bf885a8d8772310e0e38a660a3f18deb9f05a194 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edward=20Tj=C3=B6rnhammar?= <ed@cflags.cc>
Date: Thu, 2 Oct 2014 20:53:55 +0200
Subject: [PATCH 2/4] ghc-parser: added package

---
 .../libraries/haskell/ghc-parser/default.nix  | 24 +++++++++++++++++++
 pkgs/top-level/haskell-packages.nix           |  2 ++
 2 files changed, 26 insertions(+)
 create mode 100644 pkgs/development/libraries/haskell/ghc-parser/default.nix

diff --git a/pkgs/development/libraries/haskell/ghc-parser/default.nix b/pkgs/development/libraries/haskell/ghc-parser/default.nix
new file mode 100644
index 000000000000..74609e4e1adc
--- /dev/null
+++ b/pkgs/development/libraries/haskell/ghc-parser/default.nix
@@ -0,0 +1,24 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+# This file was later edited manually in order to add happy and cpphs
+# build tools, configurePhase and meta.
+
+{ cabal, bash, happy, cpphs }:
+
+cabal.mkDerivation (self: {
+  pname = "ghc-parser";
+  version = "0.1.3.0";
+  sha256 = "13p09mj92jh4y0v2r672d49fmlz3l5r2r1lqg0jjy6kj045wcfdn";
+  buildTools = [ happy cpphs ];
+  configurePhase = ''
+    ghc --make Setup.hs
+    substituteInPlace build-parser.sh --replace "/bin/bash" "${bash}/bin/bash"
+    ./Setup configure --verbose --prefix="$out"
+  '';
+  meta = with self.stdenv.lib; {
+    homepage = "https://github.com/gibiansky/IHaskell";
+    description = "Haskell source parser from GHC";
+    license = licenses.mit;
+    platforms = self.ghc.meta.platforms;
+    maintainers = with maintainers; [ edwtjo ];
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 0a4b2f2328e4..829523c4a0a6 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -914,6 +914,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   ghcPaths = callPackage ../development/libraries/haskell/ghc-paths {};
 
+  ghcParser = callPackage ../development/libraries/haskell/ghc-parser {};
+
   ghcSyb = callPackage ../development/libraries/haskell/ghc-syb {};
 
   ghcSybUtils = callPackage ../development/libraries/haskell/ghc-syb-utils {};

From 949b80a2295c1b864b3186fbda39c3114d8a5e93 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edward=20Tj=C3=B6rnhammar?= <ed@cflags.cc>
Date: Thu, 2 Oct 2014 20:53:55 +0200
Subject: [PATCH 3/4] system-argv0: added package

---
 .../libraries/haskell/system-argv0/default.nix   | 16 ++++++++++++++++
 pkgs/top-level/haskell-packages.nix              |  2 ++
 2 files changed, 18 insertions(+)
 create mode 100644 pkgs/development/libraries/haskell/system-argv0/default.nix

diff --git a/pkgs/development/libraries/haskell/system-argv0/default.nix b/pkgs/development/libraries/haskell/system-argv0/default.nix
new file mode 100644
index 000000000000..6f0eb038b604
--- /dev/null
+++ b/pkgs/development/libraries/haskell/system-argv0/default.nix
@@ -0,0 +1,16 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, systemFilepath, text }:
+
+cabal.mkDerivation (self: {
+  pname = "system-argv0";
+  version = "0.1.1";
+  sha256 = "1ijfry2r3cypp3zmws6dczk21m4n86fkxjld7yl19gjp46fxllbd";
+  buildDepends = [ systemFilepath text ];
+  meta = {
+    homepage = "https://john-millikin.com/software/haskell-filesystem/";
+    description = "Get argv[0] as a FilePath";
+    license = self.stdenv.lib.licenses.mit;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 829523c4a0a6..52233ed9b54e 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -2437,6 +2437,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   symbol = callPackage ../development/libraries/haskell/symbol {};
 
+  systemArgv0 = callPackage ../development/libraries/haskell/system-argv0 {};
+
   systemFilepath = callPackage ../development/libraries/haskell/system-filepath {};
 
   systemFileio = callPackage ../development/libraries/haskell/system-fileio {};

From 6becaca7b3c4d7b64e94e8d8140576cb5108d157 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edward=20Tj=C3=B6rnhammar?= <ed@cflags.cc>
Date: Thu, 2 Oct 2014 20:53:55 +0200
Subject: [PATCH 4/4] ihaskell: added package

---
 .../tools/haskell/ihaskell/default.nix        | 49 +++++++++++++++++++
 .../haskell/ihaskell/use-classy-prelude.patch | 34 +++++++++++++
 .../tools/haskell/ihaskell/wrapper.nix        | 26 ++++++++++
 pkgs/top-level/all-packages.nix               |  5 ++
 pkgs/top-level/haskell-packages.nix           |  2 +
 5 files changed, 116 insertions(+)
 create mode 100644 pkgs/development/tools/haskell/ihaskell/default.nix
 create mode 100644 pkgs/development/tools/haskell/ihaskell/use-classy-prelude.patch
 create mode 100644 pkgs/development/tools/haskell/ihaskell/wrapper.nix

diff --git a/pkgs/development/tools/haskell/ihaskell/default.nix b/pkgs/development/tools/haskell/ihaskell/default.nix
new file mode 100644
index 000000000000..f65053841283
--- /dev/null
+++ b/pkgs/development/tools/haskell/ihaskell/default.nix
@@ -0,0 +1,49 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+# This file was later edited to add patches, disable testing.
+# Also patch the profile config to point to the ihaskell kernel exe
+
+{ cabal, aeson, base64Bytestring, cereal, classyPrelude, cmdargs
+, filepath, ghcParser, ghcPaths, haskeline, haskellSrcExts, here
+, hlint, hspec, HTTP, HUnit, MissingH, monoTraversable, mtl, parsec
+, random, setenv, shelly, split, stm, strict, systemArgv0
+, systemFilepath, tar, text, transformers, unorderedContainers
+, utf8String, uuid, vector, zeromq4Haskell, fetchpatch
+}:
+
+cabal.mkDerivation (self: {
+  pname = "ihaskell";
+  version = "0.4.2.0";
+  sha256 = "012rmasdc167w6gl18ysr53737j4p4afk0qcsv81hif92vvg5j1c";
+  isLibrary = true;
+  isExecutable = true;
+  patches = [ (fetchpatch { url = "https://github.com/gibiansky/IHaskell/pull/288.patch"; sha256 = "022zdz4wnyra6cfa7mq0w2ycsb007cvppn2f1360nr3fa5s9wibg"; }) ];
+  prePatch = ''
+    tar xvf profile/profile.tar -C profile
+    sed -i -e '1iexe = "'$out'/bin/IHaskell".replace(" ", "\\ ")\' profile/ipython_config.py
+  '';
+  doCheck = false;
+  buildDepends = [
+    aeson base64Bytestring cereal classyPrelude cmdargs filepath
+    ghcParser ghcPaths haskeline haskellSrcExts here hlint hspec HTTP
+    HUnit MissingH monoTraversable mtl parsec random shelly split stm
+    strict systemArgv0 systemFilepath tar text transformers
+    unorderedContainers utf8String uuid vector zeromq4Haskell
+  ];
+  testDepends = [ # let's keep these anyway
+    aeson base64Bytestring cereal classyPrelude cmdargs filepath
+    ghcParser ghcPaths haskeline haskellSrcExts here hlint hspec HTTP
+    HUnit MissingH monoTraversable mtl parsec random setenv shelly
+    split stm strict systemArgv0 systemFilepath tar text transformers
+    unorderedContainers utf8String uuid vector zeromq4Haskell
+  ];
+  postInstall = ''
+    patchShebangs .
+  '';
+  meta = with self.stdenv.lib; {
+    homepage = "http://gibiansky.github.io/IHaskell/";
+    description = "A Haskell backend kernel for the IPython project";
+    license = licenses.mit;
+    platforms = self.ghc.meta.platforms;
+    maintainers = with maintainers; [ edwtjo ];
+  };
+})
diff --git a/pkgs/development/tools/haskell/ihaskell/use-classy-prelude.patch b/pkgs/development/tools/haskell/ihaskell/use-classy-prelude.patch
new file mode 100644
index 000000000000..b2c1362b62fa
--- /dev/null
+++ b/pkgs/development/tools/haskell/ihaskell/use-classy-prelude.patch
@@ -0,0 +1,34 @@
+From fad4e38079e91b13bf1e94732b7494504071b224 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Edward=20Tj=C3=B6rnhammar?= <ed@cflags.cc>
+Date: Sun, 28 Sep 2014 09:27:40 +0200
+Subject: [PATCH] catMaybes, explicitly use ClassyPrelude
+
+---
+ src/IHaskell/Eval/Completion.hs | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/IHaskell/Eval/Completion.hs b/src/IHaskell/Eval/Completion.hs
+index 790c903..93d7ac1 100644
+--- a/src/IHaskell/Eval/Completion.hs
++++ b/src/IHaskell/Eval/Completion.hs
+@@ -141,7 +141,7 @@ getTrueModuleName name = do
+       onlyImportDecl _ = Nothing
+ 
+   -- Get all imports that we use.
+-  imports <- catMaybes <$> map onlyImportDecl <$> getContext
++  imports <- ClassyPrelude.catMaybes <$> map onlyImportDecl <$> getContext
+ 
+   -- Find the ones that have a qualified name attached.
+   -- If this name isn't one of them, it already is the true name.
+@@ -178,7 +178,7 @@ completionType line loc target
+     = Empty
+ 
+   -- When in a string, complete filenames.
+-  | cursorInString line loc 
++  | cursorInString line loc
+     = FilePath (getStringTarget lineUpToCursor) (getStringTarget lineUpToCursor)
+ 
+   -- Complete module names in imports and elsewhere.
+-- 
+2.1.0
+
diff --git a/pkgs/development/tools/haskell/ihaskell/wrapper.nix b/pkgs/development/tools/haskell/ihaskell/wrapper.nix
new file mode 100644
index 000000000000..f98de4af2290
--- /dev/null
+++ b/pkgs/development/tools/haskell/ihaskell/wrapper.nix
@@ -0,0 +1,26 @@
+{ stdenv, makeWrapper, ihaskell, ipython, ghc }:
+
+stdenv.mkDerivation rec {
+
+  name = "ihaskell-" + ihaskell.version ;
+
+  buildInputs = [ makeWrapper ];
+
+  preferLocalBuild = true;
+
+  buildCommand = ''
+    makeWrapper "${ihaskell}/bin/IHaskell" "$out/bin/ihaskell" \
+      --prefix PATH : "${ghc}/bin:${ihaskell}/bin:${ipython}/bin" \
+      --prefix LD_LIBRARY_PATH : "${ihaskell}/lib/ghc-${ghc.version}/${name}/" \
+      --add-flags "--ipython=${ipython}/bin/ipython" \
+      --set PROFILE_DIR "\$HOME/.ipython/profile_haskell" \
+      --set PROFILE_TAR "$(find ${ihaskell} -iname "profile.tar")" \
+      --set PROFILE_INIT "\$([ ! -d \$PROFILE_DIR ] && mkdir -p \$PROFILE_DIR && tar xvf \$PROFILE_TAR -C \$PROFILE_DIR)" \
+      --prefix GHC_PACKAGE_PATH : "\$(${ghc.GHCGetPackages} ${ghc.version}|sed -e 's, -package-db ,:,g'|cut -b 2-):${ihaskell}/lib/ghc-${ghc.version}/package.conf.d/${name}.installedconf" \
+      --set GHC_PACKAGE_PATH "\$GHC_PACKAGE_PATH:" # always end with : to include base packages
+  '';
+
+  meta = {
+    description = ihaskell.meta.description;
+  };
+}
\ No newline at end of file
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 4777a974d762..30ca80468178 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1404,6 +1404,11 @@ let
 
   iftop = callPackage ../tools/networking/iftop { };
 
+  ihaskell = callPackage ../development/tools/haskell/ihaskell/wrapper.nix {
+    inherit (pythonPackages) ipython;
+    inherit (haskellPackages) ihaskell ghc;
+  };
+
   imapproxy = callPackage ../tools/networking/imapproxy { };
 
   imapsync = callPackage ../tools/networking/imapsync {
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 52233ed9b54e..b3f6466e75e6 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1351,6 +1351,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   ieee754 = callPackage ../development/libraries/haskell/ieee754 {};
 
+  ihaskell = callPackage ../development/tools/haskell/ihaskell {};
+
   imm = callPackage ../development/libraries/haskell/imm {};
 
   implicit = callPackage ../development/libraries/haskell/implicit {