jenkins: use post for after build actions

Jenkinsfile

@@ -26,9 +26,13 @@ pipeline {
             sh 'mkdir build; cd build; ${QT_PATH}/${QMAKE_VER} -r ${WORKSPACE}/qgroundcontrol.pro CONFIG+=${QGC_CONFIG} CONFIG+=WarningsAsErrorsOn'
             sh 'cd build; make -j`nproc --all`'
             sh 'ccache -s'
+          }
+          post {
+            cleanup {
               sh 'git clean -ff -x -d .'
             }
           }
+        }
 
         stage('Linux Debug') {
           environment {
@@ -51,9 +55,13 @@ pipeline {
             sh 'mkdir build; cd build; ${QT_PATH}/${QMAKE_VER} -r ${WORKSPACE}/qgroundcontrol.pro CONFIG+=${QGC_CONFIG} CONFIG+=WarningsAsErrorsOn'
             sh 'cd build; make -j`nproc --all`'
             sh 'ccache -s'
+          }
+          post {
+            cleanup {
               sh 'git clean -ff -x -d .'
             }
           }
+        }
 
         stage('Linux Release') {
           environment {
@@ -76,9 +84,13 @@ pipeline {
             sh 'mkdir build; cd build; ${QT_PATH}/${QMAKE_VER} -r ${WORKSPACE}/qgroundcontrol.pro CONFIG+=${QGC_CONFIG} CONFIG+=WarningsAsErrorsOn'
             sh 'cd build; make -j`nproc --all`'
             sh 'ccache -s'
+          }
+          post {
+            cleanup {
               sh 'git clean -ff -x -d .'
             }
           }
+        }
 
         stage('OSX Debug') {
           agent {
@@ -100,9 +112,13 @@ pipeline {
             sh 'mkdir build; cd build; ${QT_PATH}/${QMAKE_VER} -r ${WORKSPACE}/qgroundcontrol.pro CONFIG+=${QGC_CONFIG} CONFIG+=WarningsAsErrorsOn'
             sh 'cd build; make -j`sysctl -n hw.ncpu`'
             sh 'ccache -s'
+          }
+          post {
+            cleanup {
               sh 'git clean -ff -x -d .'
             }
           }
+        }
 
         stage('OSX Release') {
           agent {
@@ -124,10 +140,16 @@ pipeline {
             sh 'mkdir build; cd build; ${QT_PATH}/${QMAKE_VER} -r ${WORKSPACE}/qgroundcontrol.pro CONFIG+=${QGC_CONFIG} CONFIG+=WarningsAsErrorsOn'
             sh 'cd build; make -j`sysctl -n hw.ncpu`'
             sh 'ccache -s'
-            archiveArtifacts(artifacts: 'build/**/*.dmg', fingerprint: true, onlyIfSuccessful: true)
+          }
+          post {
+            success {
+              archiveArtifacts(artifacts: 'build/**/*.dmg', fingerprint: true)
+            }
+            cleanup {
               sh 'git clean -ff -x -d .'
             }
           }
+        }
       } // parallel
     } // stage('build')
   } // stages