Checkout the intellij repo in CI with depth 1. Full history is not needed.

Author: greggdonovan

.travis.yml

@@ -37,7 +37,7 @@ before_install:
     ./install.sh --user
     rm -f install.sh
   - cat .bazelrc.travis >> .bazelrc
-  - git clone https://github.com/bazelbuild/intellij.git
+  - git clone --depth 1 https://github.com/bazelbuild/intellij.git
 
 script:
   - bash test_run.sh ci

test_run.sh

@@ -734,7 +734,7 @@ test_intellij_aspect() {
   local rules_scala_dir=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
 
   if [[ "${test_env}" == "ci" ]]; then
-    # ci: intellij is checked out with full git history in `.travis.yaml`
+    # ci: intellij is checked out in `.travis.yaml`
     cd intellij
   else
     # local: update or checkout a sibling dir.