build: restructure CI build steps

.travis.yml

@@ -20,20 +20,49 @@ cache:
   directories:
     - node_modules
 before_install:
-  # Skip updating shrinkwrap / lock
-  - "npm config set shrinkwrap false"
-
+  # Configure npm
+  - |
+    # Skip updating shrinkwrap / lock
+    npm config set shrinkwrap false
   # Setup Node.js version-specific dependencies
-  - "test $TRAVIS_NODE_VERSION != '0.8' || npm rm --save-dev istanbul"
-  - "test $(echo $TRAVIS_NODE_VERSION | cut -d. -f1) -ge 6 || npm rm --save-dev $(grep -E '\"eslint\\S*\"' package.json | cut -d'\"' -f2)"
-
+  - |
+    # istanbul for coverage
+    # - remove for Node.js < 0.10
+    if [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -eq 0 && "$(cut -d. -f2 <<< "$TRAVIS_NODE_VERSION")" -lt 10 ]]; then
+      npm rm --silent --save-dev istanbul
+    fi
+  - |
+    # eslint for linting
+    # - remove on Node.js < 6
+    if [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 6 ]]; then
+      node -pe 'Object.keys(require("./package").devDependencies).join("\n")' | \
+        grep -E '^eslint(-|$)' | \
+        xargs npm rm --save-dev
+    fi
   # Update Node.js modules
-  - "test ! -d node_modules || npm prune"
-  - "test ! -d node_modules || npm rebuild"
+  - |
+    # Prune and rebuild node_modules
+    if [[ -d node_modules ]]; then
+      npm prune
+      npm rebuild
+    fi
 script:
-  # Run test script, depending on istanbul install
-  - "test ! -z $(npm -ps ls istanbul) || npm test"
-  - "test   -z $(npm -ps ls istanbul) || npm run-script test-ci"
-  - "test   -z $(npm -ps ls eslint) || npm run-script lint"
+  # Run test script
+  - |
+    if npm -ps ls istanbul | grep -q istanbul; then
+      npm run test-ci
+    else
+      npm test
+    fi
+  # Run linting
+  - |
+    if npm -ps ls eslint | grep -q eslint; then
+      npm run lint
+    fi
 after_script:
-  - "test -e ./coverage/lcov.info && npm install coveralls@2 && cat ./coverage/lcov.info | coveralls"
+  - |
+    # Upload coverage to coveralls
+    if [[ -f ./coverage/lcov.info ]]; then
+      npm install --save-dev coveralls@2.13.3
+      coveralls < ./coverage/lcov.info
+    fi

appveyor.yml

@@ -18,21 +18,41 @@ environment:
 cache:
   - node_modules
 install:
+  # Install Node.js
   - ps: >-
       try { Install-Product node $env:nodejs_version -ErrorAction Stop }
       catch { Update-NodeJsInstallation (Get-NodeJsLatestBuild $env:nodejs_version) }
-  - npm config set shrinkwrap false
-  - if "%nodejs_version%" equ "0.8" npm config set strict-ssl false
-  - if "%nodejs_version%" equ "0.8" npm rm --save-dev istanbul
-  - for /f tokens^=2^ delims^=^" %%m in ('findstr /r /c:"eslint[^ ]" package.json') do call npm rm --save-dev %%m
-  - if exist node_modules npm prune
-  - if exist node_modules npm rebuild
+  # Configure npm
+  - ps: |
+      # Skip updating shrinkwrap / lock
+      npm config set shrinkwrap false
+      # Skip SSL validation on Node.js < 0.10
+      if ([int]$env:nodejs_version.split(".")[0] -eq 0 -and [int]$env:nodejs_version.split(".")[1] -lt 10) {
+        npm config set strict-ssl false
+      }
+  # Setup Node.js version-specific dependencies
+  - ps: |
+      # Remove coverage dependency
+      npm rm --silent --save-dev istanbul
+      # Remove lint dependencies
+      cmd.exe /c "node -pe `"Object.keys(require('./package').devDependencies).join('\n')`"" | `
+        sls "^eslint(-|$)" | `
+        %{ npm rm --silent --save-dev $_ }
+  # Update Node.js modules
+  - ps: |
+      # Prune & rebuild node_modules
+      if (Test-Path -Path node_modules) {
+        npm prune
+        npm rebuild
+      }
+  # Install Node.js modules
   - npm install
 build: off
 test_script:
-  - node --version
-  - npm --version
-  - set npm_test_command=test
-  - for /f %%l in ('npm -ps ls istanbul') do set npm_test_command=test-ci
-  - npm run %npm_test_command%
+  # Output version data
+  - ps: |
+      node --version
+      npm --version
+  # Run test script
+  - npm test
 version: "{build}"