chore(ci): switch to github actions

When this project was first started, Github Actions were not an
option. Now that they are, and that teamcity is less accessible
(lesser used, needs connection, ci link is not up to date), we
are switching to gh actions.

Fixes #279

.github/workflows/ci.yml

@@ -0,0 +1,84 @@
+# Inspired from:
+# - https://github.com/cockroachdb/sqlalchemy-cockroachdb/blob/master/.github/workflows/ci.yml
+# - https://github.com/rgeo/activerecord-postgis-adapter/blob/master/.github/workflows/tests.yml
+name: Test
+
+on:
+  # Triggers the workflow on push or pull request events.
+  push:
+    # This should disable running the workflow on tags, according to the
+    # on.<push|pull_request>.<branches|tags> GitHub Actions docs.
+    branches:
+      - "*"
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# This allows a subsequently queued workflow run to interrupt previous runs.
+concurrency:
+  group: '${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}'
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        crdb: [v23.1.15]
+        ruby: [ruby-head]
+    steps:
+      - name: Set Up Actions
+        uses: actions/checkout@v2
+      - name: Install GEOS
+        run: sudo apt-get install libgeos-dev
+      - name: Set Up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+           ruby-version: ${{ matrix.ruby }}
+           bundler-cache: true
+      - name: Install and Start Cockroachdb
+        run: |
+          # Download CockroachDB
+          wget -qO- https://binaries.cockroachdb.com/cockroach-${{ matrix.crdb }}.linux-amd64.tgz | tar xvz
+
+          readonly COCKROACH=./cockroach-${{ matrix.crdb }}.linux-amd64/cockroach
+          readonly urlfile=cockroach-url
+
+          # Start a CockroachDB server and wait for it to become ready.
+          rm -f "$urlfile"
+          rm -rf cockroach-data
+          # Start CockroachDB.
+          cockroach start-single-node --max-sql-memory=25% --cache=25% --insecure --host=localhost --spatial-libs=./cockroach-$VERSION.linux-amd64/lib --listening-url-file="$urlfile" >/dev/null 2>&1 &
+          # Ensure CockroachDB is stopped on script exit.
+          # Wait until CockroachDB has started.
+          for i in {0..3}; do
+            [[ -f "$urlfile" ]] && break
+            backoff=$((2 ** i))
+            echo "server not yet available; sleeping for $backoff seconds"
+            sleep $backoff
+          done
+          cockroach sql --insecure -e 'CREATE DATABASE activerecord_unittest;'
+          cockroach sql --insecure -e 'CREATE DATABASE activerecord_unittest2;'
+          cockroach sql --insecure -e 'SET CLUSTER SETTING sql.stats.automatic_collection.enabled = false;'
+          cockroach sql --insecure -e 'SET CLUSTER SETTING sql.stats.histogram_collection.enabled = false;'
+          cockroach sql --insecure -e "SET CLUSTER SETTING jobs.retention_time = '180s';"
+          cockroach sql --insecure -e "SET CLUSTER SETTING sql.defaults.experimental_alter_column_type.enabled = 'true'"
+
+          cockroach sql --insecure -e "ALTER RANGE default CONFIGURE ZONE USING num_replicas = 1, gc.ttlseconds = 30;"
+          cockroach sql --insecure -e "ALTER TABLE system.public.jobs CONFIGURE ZONE USING num_replicas = 1, gc.ttlseconds = 30;"
+          cockroach sql --insecure -e "ALTER RANGE meta CONFIGURE ZONE USING num_replicas = 1, gc.ttlseconds = 30;"
+          cockroach sql --insecure -e "ALTER RANGE system CONFIGURE ZONE USING num_replicas = 1, gc.ttlseconds = 30;"
+          cockroach sql --insecure -e "ALTER RANGE liveness CONFIGURE ZONE USING num_replicas = 1, gc.ttlseconds = 30;"
+
+          cockroach sql --insecure -e "SET CLUSTER SETTING kv.range_merge.queue_interval = '50ms'"
+          cockroach sql --insecure -e "SET CLUSTER SETTING kv.raft_log.disable_synchronization_unsafe = 'true'"
+          cockroach sql --insecure -e "SET CLUSTER SETTING jobs.registry.interval.cancel = '180s';"
+          cockroach sql --insecure -e "SET CLUSTER SETTING jobs.registry.interval.gc = '30s';"
+          cockroach sql --insecure -e "SET CLUSTER SETTING kv.range_split.by_load_merge_delay = '5s';"
+
+          # Enable experimental features.
+          cockroach sql --insecure -e "SET CLUSTER SETTING sql.defaults.experimental_temporary_tables.enabled = 'true';"
+      - name: Test
+        run: bundle exec rake test