Initial commit

.gitignore

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+dist
+cabal-dev
+*.o
+*.hi
+*.chi
+*.chs.h
+.virtualenv
+.hsenv
+.cabal-sandbox/
+cabal.sandbox.config
+cabal.config

.gitmodules

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+[submodule "nixpkgs"]
+	path = nixpkgs
+	url = ../nixpkgs
+[submodule "reflex"]
+	path = reflex
+	url = ../reflex
+[submodule "reflex-dom"]
+	path = reflex-dom
+	url = ../reflex-dom
+[submodule "reflex-todomvc"]
+	path = reflex-todomvc
+	url = ../reflex-todomvc

LICENSE

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+Copyright (c) 2014, Ryan Trinkle
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of the {organization} nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+

README.md

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+ghcjs-setup
+===========
+
+```bash
+git clone --recursive [email protected]:ryantrinkle/try-reflex
+cd try-reflex
+./try-reflex
+```
+
+This will install the Nix package manager, grab the ghcjs package information, build everything, then give you access to a sandbox with ghcjs and node.js available.  The first time you run it, the build process will take a long time - up to several hours.  After that, it should only take a few moments.
+
+You will need sudo access in order to install Nix (unless you are on NixOS).  However, you should run the script as yourself, not root - it will prompt for your password when necessary.

default.nix

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+let nixpkgs = import ./nixpkgs {};
+    extendHaskellPackages = haskellPackages: haskellPackages.override {
+      extension = self: super: {
+        reflex = self.callPackage ./reflex {};
+        reflexDom = self.callPackage ./reflex-dom {};
+        reflexTodomvc = self.callPackage ./reflex-todomvc {};
+      };
+    };
+in {
+  inherit nixpkgs;
+  haskellPackages_ghc784 = extendHaskellPackages nixpkgs.pkgs.haskellPackages_ghc784_profiling;
+  haskellPackages_ghcjs = extendHaskellPackages nixpkgs.pkgs.haskellPackages_ghcjs;
+}

shell.nix

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+{ platform ? "ghcjs" }:
+with import ./.;
+let haskellPackages =
+      if platform == "ghcjs" then haskellPackages_ghcjs
+      else if platform == "ghc" then haskellPackages_ghc784
+      else error (''Unrecognized platform "${platform}"; please use either "ghcjs" or "ghc"'');
+in nixpkgs.runCommand "shell" {
+  buildInputs = with haskellPackages; [
+    ghc (ghc.ghc.parent.cabalInstall or null) nixpkgs.nodejs
+    reflex
+    reflexDom
+    reflexTodomvc
+  ];
+} ""

try-reflex

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+#!/usr/bin/env bash
+set -eu
+
+REPO="https://github.com/ryantrinkle/try-reflex"
+
+trap "echo 'It looks like a problem occurred.  Please submit an issue at $REPO/issues'; exit 1" ERR
+
+echo "If you have any trouble with this script, please submit an issue at $REPO/issues"
+
+if [ ! -d /nix ] ; then
+  if ! type -P curl >/dev/null ; then
+    echo "Please make sure that 'curl' is installed and can be run from this shell"
+    exit 1
+  fi
+
+  echo "In order to continue, $0 must install the Nix package manager.  This requires root access, so you will be prompted for your password.  If you do not wish to continue, just hit Ctrl-C at the password prompt."
+  bash <(curl https://nixos.org/nix/install)
+fi
+
+if ! type -P nix-shell >/dev/null ; then
+  . ~/.nix-profile/etc/profile.d/nix.sh
+  if ! type -P nix-shell >/dev/null ; then
+    echo "It looks like Nix isn't working.  Please make sure you can run nix-shell, then retry the $0, or submit an issue at $REPO/issues"
+    exit 1
+  fi
+fi
+
+if [ ! -d nixpkgs ] ; then
+  if ! type -P git ; then
+    echo "Please make sure that 'git' is installed and can be run from this shell"
+    exit 1
+  fi
+
+  echo "Getting ghcjs build scripts"
+  git clone https://github.com/NixOS/nixpkgs
+fi
+
+INFO=$(cat <<"EOF"
+
+You are now in a shell with access to ghcjs and cabal.  You can verify that ghcjs is configured correctly by checking that you get expected output like this:
+$ ghcjs --version
+The Glorious Glasgow Haskell Compilation System for JavaScript, version 0.1.0 (GHC 7.8.4)
+
+$ cabal install --help | grep ghcjs
+--ghcjs                         compile with GHCJS
+
+To build a basic program with ghcjs, do:
+$ echo 'main = putStrLn \"Hello, world!\"' > helloWorld.hs
+$ ghcjs helloWorld.hs
+$ node helloWorld.jsexe/all.js
+EOF
+)
+
+echo "Entering the ghcjs/nodejs sandbox; this may take several hours the first time you run it"
+nix-shell --command "echo \"$INFO\" ; return"