Attempt to speedup build by prepopulating maven cache

concourse/pipeline.yml

@@ -115,8 +115,10 @@ jobs:
       file: out/*.tar.gz
 - name: build-vsix-snapshots
   plan:
-  - get: sts4
-    trigger: true
+  - aggregate:
+    - get: sts4
+      trigger: true
+    - get: maven-cache
   - task: build-vscode-extensions
     file: sts4/concourse/tasks/build-vscode-extensions.yml
     on_success:

concourse/tasks/build-vscode-extensions.sh

@@ -2,6 +2,14 @@
 set -e
 workdir=`pwd`
 
+if [ -d "maven-cache" ]; then
+    echo "Prepopulating maven cache"
+    tar xzvf maven-cache/*.tar.gz -C ${HOME}
+else
+    echo "!!!No stored maven cache found!!! "
+    echo "!!!This may slow down the build!!!"
+fi
+
 cd sts4/vscode-extensions
 ./build-all.sh