Add appveyor / travis

.travis.yml

@@ -0,0 +1,15 @@
+language: node_js
+node_js:
+- 8
+os:
+- linux
+- osx
+install:
+- npm install --global [email protected]
+- esy install
+script:
+- travis_wait 40 esy build
+cache:
+    timeout: 360
+    directories:
+        - '$HOME/.esy/'

appveyor.yml

@@ -0,0 +1,18 @@
+platform:
+    - x64
+
+cache:
+    - C:\Users\appveyor\.esy\3_\i
+    - C:\Users\appveyor\.esy\source-tarballs
+
+install:
+    # The x64 is required as a workaround for esy/esy#412
+    - ps: Install-Product node 8 x64
+    - npm install -g [email protected]
+    # Retry is necessary due to esy/esy#413 and esy/esy#414
+    - appveyor-retry esy install
+
+build_script:
+    - esy build
+
+test: off