ci(npm): use npm ci

Author: felixfbecker

.gitignore

@@ -3,4 +3,3 @@ node_modules/
 out/
 coverage/
 .nyc_output/
-package-lock.json

.npmrc

@@ -1,2 +1,5 @@
-package.json
+.nyc_output/
+coverage/
 out/
+package-lock.json
+package.json

.prettierignore

@@ -6,7 +6,7 @@ php:
 env:
   global:
     - NODE_VERSION=7.9.0
-    - NPM_VERSION=^5.0.0
+    - NPM_VERSION=^5.7.1
     - BUILD_LEADER_ID=4
     - GITHUB_TOKEN=$GH_TOKEN
   matrix:
@@ -26,7 +26,7 @@ before_install:
   - npm install -g npm@$NPM_VERSION --depth 0
 
 install:
-  - npm install
+  - npm ci
 
 script:
   - npm run build
@@ -61,7 +61,7 @@ jobs:
       node_js: '8'
       before_install: skip
       install:
-        - npm install
+        - npm ci
       script:
         - npm run build
         - npm run semantic-release

.travis.yml

@@ -49,4 +49,4 @@ npm config -g set unicode=false
 
 # Install dependencies
 Write-Output 'Installing dependencies'
-npm install
+npm ci

appveyor-install.ps1

@@ -13,7 +13,7 @@ cache:
 
 environment:
   NODE_VERSION: '7.9.0'
-  NPM_VERSION: '^5.0.0'
+  NPM_VERSION: '^5.7.1'
   matrix:
     - {PHP_VERSION: '7.0.20', VC_VERSION: '14', XDEBUG_VERSION: '2.5.5'}
     - {PHP_VERSION: '5.6.30', VC_VERSION: '11', XDEBUG_VERSION: '2.5.5'}