add option info to install for Nix-users. (#144)

- readme install information
  - How to remove spago, purescript dependencies with 1 line
  command. (unix only)
- create pinned purs 0.13.6 dependencies with spago and the rest. shell.nix

Author: danielstaleiny

README.md

@@ -20,6 +20,13 @@ Install all dependencies locally:
 make installDeps
 ```
 
+Install for Nix users:
+```
+# Remove purescript and spago and removing traling , from package.json
+sed --in-place '/purescript\|spago/d' ./package.json && sed --in-place '$!N;s/,\n  }/\n  }/;P;D' package.json
+nix-shell
+```
+
 ### Running Recipes
 
 See a list of available recipe launch commands by running `make list`:

scripts/ReadmeContent.md

@@ -20,6 +20,13 @@ Install all dependencies locally:
 make installDeps
 ```
 
+Install for Nix users:
+```
+# Remove purescript and spago and removing traling , from package.json
+sed --in-place '/purescript\|spago/d' ./package.json && sed --in-place '$!N;s/,\n  }/\n  }/;P;D' package.json
+nix-shell
+```
+
 ### Running Recipes
 
 See a list of available recipe launch commands by running `make list`:

shell.nix

@@ -0,0 +1,18 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+let
+  easy-ps = import (
+    pkgs.fetchFromGitHub {
+      owner = "justinwoo";
+      repo = "easy-purescript-nix";
+      rev = "01ae1bc844a4eed1af7dfbbb202fdd297e3441b9";
+      sha256 = "0jx4xb202j43c504gzh27rp9f2571ywdw39dqp6qs76294zwlxkh";
+    }
+  ) {
+    inherit pkgs;
+  };
+
+in
+pkgs.mkShell {
+  buildInputs = [ easy-ps.purs easy-ps.psc-package-simple easy-ps.spago easy-ps.spago2nix ];
+}