Add build check and test

.envrc

@@ -0,0 +1,4 @@
+# use .envrc to set shared environment
+
+# use .envrc.local to set own local environment
+# source_env_if_exists .envrc.local

.github/workflows/actions-build-test.yml

@@ -0,0 +1,25 @@
+name: Build checks
+run-name: ${{ github.actor }} Build test 
+on: [push]
+jobs:
+  Build-Test:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "The job was automatically triggered by a ${{ github.event_name }} event."
+      - run: echo "This job is now running on a ${{ runner.os }} server."
+      - run: echo "The name of your branch is ${{ github.ref }} and your repository is ${{ github.repository }}."
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - run: echo "The ${{ github.repository }} repository has been cloned to the runner."
+      - run: echo "The workflow is now ready to test your code on the runner."
+      - name: List files in the repository
+        run: |
+          ls ${{ github.workspace }}
+      - name: Mount bazel cache  # Optional
+        uses: actions/cache@v3
+        with:
+            path: "~/.cache/bazel"
+            key: bazel
+      - run: bazel build //...
+      - run: bazel test //...
+      - run: echo "This job's status is ${{ job.status }}."

.gitignore

@@ -4,4 +4,6 @@ bazel-out
 bazel-testlogs
 .vscode
 genhtml
-*.log
+*.log
+*.out
+.envrc.local