Merge pull request justinwoo#24 from justinwoo/fix-ci

make ci setup easier to work with

.github/workflows/ci.yml

@@ -1,27 +1,12 @@
 name: Node CI
 
-on: [push]
-
+on:
+  pull_request:
+  push:
 jobs:
-  build:
-
+  tests:
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@master
-    - name: Use Node.js 10.x
-      uses: actions/setup-node@v1
-      with:
-        version: 10.x
-    - name: Install and test
-      run: |
-        wget -O $HOME/purescript.tar.gz https://github.com/purescript/purescript/releases/latest/download/linux64.tar.gz
-        tar -xvf $HOME/purescript.tar.gz -C $HOME/
-        chmod a+x $HOME/purescript
-
-        npm install -g bower pulp
-        npm install
-        bower install
-
-        PATH=$HOME/purescript:$PATH
-        pulp test
+    - uses: actions/checkout@v2
+    - uses: cachix/install-nix-action@v9
+    - run: ./test.bash