updated builds

.jenkins_builds

@@ -37,6 +37,9 @@ pipeline {
           }
         }
 
+        stage('clean_packages') {
+          steps { script { retryWithBackoff(2, 5) { sh 'clean_packages.sh' } } }
+        }
         stage('grab_packages') {
           steps { script { retryWithBackoff(2, 5) { sh 'grab_packages.sh' } } }
         }

.jenkins_macos

@@ -36,6 +36,9 @@ pipeline {
           }
         }
 
+        stage('clean_packages') {
+          steps { script { retryWithBackoff(2, 5) { sh 'clean_packages.sh' } } }
+        }
         stage('grab_packages') {
           steps { script { retryWithBackoff(2, 5) { sh 'grab_packages.sh' } } }
         }

.jenkins_msys2

@@ -36,6 +36,9 @@ pipeline {
           }
         }
 
+        stage('clean_packages') {
+          steps { script { retryWithBackoff(2, 5) { sh 'clean_packages.cmd' } } }
+        }
         stage('grab_packages') {
           steps { script { retryWithBackoff(2, 5) { sh 'grab_packages.cmd' } } }
         }

clean_packages.cmd

@@ -0,0 +1,11 @@
+@echo off
+
+setlocal
+
+pushd "%~dp0"
+call src\scripts\setup_msys2.cmd
+
+call mingw64 -no-start ./clean_packages.sh
+popd
+
+endlocal