Build host apps on both Linux and macOS

Jenkinsfile

@@ -3,9 +3,7 @@
 getApproval()
 
 pipeline {
-  agent {
+  agent none
-    label 'x86_64&&brew&&macOS'
-  }
   environment {
     REPO = 'lib_xua'
     VIEW = "${env.JOB_NAME.contains('PR-') ? REPO+'_'+env.CHANGE_TARGET : REPO+'_'+env.BRANCH_NAME}"
@@ -51,6 +49,11 @@ pipeline {
   options {
     skipDefaultCheckout()
   }
+  stages {
+    stage('Basic tests') {
+      agent {
+        label 'x86_64&&brew'
+      }
       stages {
         stage('Get view') {
           steps {
@@ -67,13 +70,6 @@ pipeline {
             runXmostest("${REPO}", 'tests')
           }
         }
-    stage('Host builds') {
-      steps {
-        dir("${REPO}/${REPO}/host/xmosdfu") {
-          sh 'make -f Makefile.OSX64'
-        }
-      }
-    }
         stage('xCORE builds') {
           steps {
             dir("${REPO}") {
@@ -86,11 +82,60 @@ pipeline {
         }
       }
       post {
-    success {
+        cleanup {
+          xcoreCleanSandbox()
+        }
+      }
+    }
+    stage('Build host apps') {
+      failFast true
+      parallel {
+        stage('Build Linux host app') {
+          agent {
+            label 'x86_64&&brew&&linux'
+          }
+          steps {
+            xcorePrepareSandbox("${VIEW}", "${REPO}")
+            dir("${REPO}/${REPO}/host/xmosdfu") {
+              sh 'make -f Makefile.Linux64'
+            }
+          }
+          post {
+            cleanup {
+              xcoreCleanSandbox()
+            }
+          }
+        }
+        stage('Build Mac host app') {
+          agent {
+            label 'x86_64&&brew&&macOS'
+          }
+          steps {
+            xcorePrepareSandbox("${VIEW}", "${REPO}")
+            dir("${REPO}/${REPO}/host/xmosdfu") {
+              sh 'make -f Makefile.OSX64'
+            }
+          }
+          post {
+            cleanup {
+              xcoreCleanSandbox()
+            }
+          }
+        }
+      }
+    }
+    stage('Update') {
+      agent {
+        label 'x86_64&&brew'
+      }
+      steps {
         updateViewfiles()
       }
+      post {
         cleanup {
           cleanWs()
         }
       }
     }
+  }
+}