try nyc instead of instanbul

Author: Dave Conway-Jones

.travis.yml

@@ -23,7 +23,9 @@ before_install:
 before_script:
   # Remove the './node_modules/.bin:' entry, see https://github.com/travis-ci/travis-ci/issues/8813
   - export PATH=`echo ${PATH} | sed -re 's,(^|:)(./)?node_modules/.bin($|:),\1,'`
-  - npm install -g istanbul grunt-cli coveralls
+  - npm install -g nyc grunt-cli coveralls
   - npm install node-red
 script:
-  - istanbul cover grunt --report lcovonly && istanbul report text && ( cat coverage/lcov.info | $(npm get prefix)/bin/coveralls || true ) && rm -rf coverage
+  # - istanbul cover grunt --report lcovonly && istanbul report text && ( cat coverage/lcov.info | $(npm get prefix)/bin/coveralls || true ) && rm -rf coverage
+  # - nyc --check-coverage --reporter=text --reporter=lcovonly --reporter=text grunt && rm -rf coverage
+  - nyc grunt && rm -rf coverage .nyc_output

coverall

@@ -1,3 +1,3 @@
 # check coverage of tests... and browse report
-istanbul cover ./node_modules/.bin/grunt --report lcovonly && istanbul report html
+nyc --check-coverage --reporter=html grunt
 /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome coverage/index.html