From 14f6ea9d3c01854f0f240158de700d2833cd65f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edward=20Tj=C3=B6rnhammar?= <ed@cflags.cc>
Date: Mon, 19 Jan 2015 21:10:22 +0100
Subject: [PATCH] ihaskell: be more paranoid about profile initialization

---
 .../tools/haskell/ihaskell/wrapper.nix        | 24 ++++++++++++++-----
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/pkgs/development/tools/haskell/ihaskell/wrapper.nix b/pkgs/development/tools/haskell/ihaskell/wrapper.nix
index 281a3177baef..b20f8fa4f507 100644
--- a/pkgs/development/tools/haskell/ihaskell/wrapper.nix
+++ b/pkgs/development/tools/haskell/ihaskell/wrapper.nix
@@ -2,23 +2,35 @@
 
 stdenv.mkDerivation rec {
 
-  inherit (ihaskell) name pname version;
+  inherit (ihaskell) name pname src version meta;
 
   buildInputs = [ makeWrapper ];
 
   preferLocalBuild = true;
 
-  buildCommand = ''
+  buildCommand = let profile = "${pname}-${version}/profile/profile.tar"; in ''
+    tar xf $src ${profile}
+    mkdir -p $out/share/`dirname ${profile}`
+    mkdir profile
+    cd profile
+    tar xf ../${profile}
+    for cfg in ipython_*config.py;do
+      sed -i -e "1iexe = '${ihaskell}/bin/IHaskell'" $cfg
+    done
+    tar cf $out/share/${profile} .
     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 ${ihaskell} -iname "profile.tar")" \
-      --set PROFILE_INIT "\$([ ! -d \$PROFILE_DIR ] && mkdir -p \$PROFILE_DIR && tar xvf \$PROFILE_TAR -C \$PROFILE_DIR)" \
+      --set PROFILE_TAR "$out/share/${profile}" \
+      --set PROFILE_INIT "\$([ ! -d \$PROFILE_DIR ] \
+          && mkdir -p \$PROFILE_DIR \
+          && tar xf \$PROFILE_TAR -C \$PROFILE_DIR \
+          ; [ -d \$PROFILE_DIR ] && for cfg in \$PROFILE_DIR/ipython_*config.py;do \
+            sed -i -e '/.*exe.*IHaskell.*/d' \$cfg; sed -i -e \"1iexe = '${ihaskell}/bin/IHaskell'\" \$cfg;done ) \
+        " \
       --prefix GHC_PACKAGE_PATH : "\$(${ghc.GHCGetPackages} ${ghc.version}|sed -e 's, -package-db ,:,g'|cut -b 2-):${ihaskell}/lib/ghc-${ghc.version}/package.conf.d/${pname}-${version}.installedconf" \
       --set GHC_PACKAGE_PATH "\$GHC_PACKAGE_PATH:" # always end with : to include base packages
   '';
-
-  inherit (ihaskell) meta;
 }