build: cache node_modules on CI

Author: dougwilson

.travis.yml

@@ -24,12 +24,20 @@ matrix:
 
 sudo: false
 
+cache:
+  directories:
+    - node_modules
+
 before_install:
   # Setup Node.js version-specific dependencies
   - "test $TRAVIS_NODE_VERSION != '0.6' || npm rm --save-dev istanbul"
   - "test $TRAVIS_NODE_VERSION != '0.8' || npm rm --save-dev istanbul"
   - "test $TRAVIS_NODE_VERSION  = '4.4' || npm rm --save-dev eslint"
 
+  # Update Node.js modules
+  - "test ! -d node_modules || npm prune"
+  - "test ! -d node_modules || npm rebuild"
+
 before_script:
 - "mysql -e 'create database node_mysql; select version();'"
 

appveyor.yml

@@ -19,10 +19,15 @@ environment:
 services:
   - mysql
 
+cache:
+  - node_modules
+
 install:
   - ps: Install-Product node $env:nodejs_version
   - if "%nodejs_version%" equ "0.8" npm rm --save-dev istanbul
   - npm rm --save-dev eslint
+  - if exist node_modules npm prune
+  - if exist node_modules npm rebuild
   - npm install
 
 build: off