infra: appveyor can now execute any tasks we want in CI, defined in Matrix. Powershell can not be used to run actual command as it works badly in case some nativecommand do error-output as ANTLR do, so we have to use cmd

appveyor.yml

@@ -23,32 +23,75 @@ install:
   - cmd: git config --global core.autocrlf
   - cmd: mvn --version
   - cmd: java -version
+  - cmd: '%CYG_BIN% -qnNdO -R %CYG_ROOT% -s %CYG_MIRROR% -l %CYG_CACHE% -P hg'
+
 cache:
   - C:\maven\
   - C:\Users\appveyor\.m2
+  - C:\cygwin\var\cache\setup
 
 matrix:
   fast_finish: true
 
 environment:
+  global:
+    CYG_BIN: C:\cygwin\setup-x86.exe
+    CYG_ROOT: C:\cygwin
+    CYG_CACHE: C:\cygwin\var\cache\setup
+    CYG_MIRROR: http://cygwin.mirror.constant.com
+    CMD1: " "
+    CMD2: " "
+    CMD3: " "
+    CMD4: " "
+    CMD5: " "
+    CMD6: " "
+    CMD7: " "
+    CMD8: " "
+    CMD9: " "
+    CMD10: " "
+  # We do matrix as Appveyor could fail to finish simple "mvn verify"
+  #    if he loose maven cache (happens from time to time)
   matrix:
     # checkstyle and sevntu.checkstyle
     - JAVA_HOME: C:\Program Files\Java\jdk1.8.0
-      CMD: mvn -e verify -DskipTests -DskipITs -Dpmd.skip=true -Dfindbugs.skip=true -Dcobertura.skip=true
+      DESC: "checkstyle and sevntu.checkstyle"
+      CMD1: "mvn -e verify -DskipTests -DskipITs -Dpmd.skip=true -Dfindbugs.skip=true -Dcobertura.skip=true"
     # verify without checkstyle
     - JAVA_HOME: C:\Program Files\Java\jdk1.8.0
-      CMD: mvn -e verify -Dcheckstyle.ant.skip=true
+      DESC: "verify without checkstyle"
+      CMD1: "mvn -e verify -Dcheckstyle.ant.skip=true -Dcheckstyle.skip=true"
     # site, without verify
     - JAVA_HOME: C:\Program Files\Java\jdk1.8.0
-      CMD: mvn -e site -Dlinkcheck.skip=true -Dmaven.javadoc.skip=true -DskipTests -DskipITs -Dcobertura.skip=true -Dpmd.skip=true -Dfindbugs.skip=true -Dcheckstyle.ant.skip=true
+      DESC: "site, without verify"
+      CMD1: "mvn -e site -Dlinkcheck.skip=true -Dmaven.javadoc.skip=true -DskipTests"
+      CMD2: "   -DskipITs -Dcobertura.skip=true -Dpmd.skip=true -Dfindbugs.skip=true "
+      CMD3: "   -Dcheckstyle.ant.skip=true"
+    # checkstyle-tester
+    - JAVA_HOME: C:\Program Files\Java\jdk1.8.0
+      DESC: "checkstyle-tester on guava"
+      CMD1: "mvn clean install -DskipTests -DskipITs -Dcobertura.skip=true "
+      CMD2: "    -Dpmd.skip=true -Dfindbugs.skip=true -Dcheckstyle.ant.skip=true -Dcheckstyle.skip=true "
+      CMD3: " && git clone -q --depth=10 --branch=master "
+      CMD4: "      https://github.com/checkstyle/contribution C:\\projects\\checkstyle\\contribution "
+      CMD5: " && cd contribution\\checkstyle-tester "
+      CMD6: " && move /Y projects-for-travis.properties projects-to-test-on.properties "
+      CMD7: " && C:\\cygwin\\bin\\bash.exe -lc "
+      CMD8: "          \"cd $APPVEYOR_BUILD_FOLDER/contribution/checkstyle-tester/ ;"
+      CMD9: "               ./launch.sh -Dcheckstyle.config.location=checks-nonjavadoc-error.xml\""
 
 build_script:
-  - ps: $PSVersionTable
-  - ps: $cmdline = get-content env:CMD
-  - ps: $cmdline = "try{ `$ErrorActionPreference = 'Stop' ; $($cmdline) ; if(`$?) { } else { Exit 1 }} catch { }"
-  - ps: $cmdline = $cmdline.replace('-D','`-D')
-  # We can not use Invoke-Expression as ANTLR write all in error log and error log is highlighted in Appveyor as RED - too scary
-  #- ps: Invoke-Expression $cmdline -ErrorAction SilentlyContinue
-  - ps: $cmdline | Out-File command.ps1
-  - ps: get-content command.ps1
-  - ps: "& .\\command.ps1"
+  - ps: >
+       (get-content env:CMD1) 
+       + (get-content env:CMD2) 
+       + (get-content env:CMD3) 
+       + (get-content env:CMD4) 
+       + (get-content env:CMD5) 
+       + (get-content env:CMD6) 
+       + (get-content env:CMD7) 
+       + (get-content env:CMD8) 
+       + (get-content env:CMD9) 
+       + (get-content env:CMD10) 
+       | Out-File appveyor.cmd -encoding ASCII
+  - ps: get-content appveyor.cmd
+  # We need to use cmd there as ps1 is failing each time error output appear from any command line
+  - appveyor.cmd