Create makefile.yml

.github/workflows/makefile.yml

@@ -0,0 +1,22 @@
+name: Makefile CI
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Run system tests
+      run: ./system-test mkdb && diff -u <(printf "629\n62\n629\n") \
+            <(echo "select count(*) from tick;" \
+            " select count(*) from relation;" \
+            " select count(*) from attr;" | \
+            sqlite3 test/observatory.db)
+