Run the Eclipse Formatter in TravisCI

Author: eregon

.travis.yml

@@ -1,6 +1,12 @@
 language: ruby
 rvm: 2.6.2
 install:
+  - |
+      export ECLIPSE_EXE=$HOME/eclipse-cache/eclipse/eclipse
+      if [ ! -f "$ECLIPSE_EXE" ]; then
+        wget -O eclipse.tar.gz https://archive.eclipse.org/eclipse/downloads/drops4/R-4.5.2-201602121500/eclipse-SDK-4.5.2-linux-gtk-x86_64.tar.gz
+        tar -C $HOME/eclipse-cache -xzf eclipse.tar.gz
+      fi
   - tool/jt.rb install jvmci
   - tool/jt.rb mx sforceimports
   - tool/jt.rb build
@@ -10,3 +16,4 @@ script:
 cache:
   directories:
     - $HOME/.mx/cache
+    - $HOME/eclipse-cache