Adds CI - Fixes #1

.github/workflows/CI.yml

@@ -0,0 +1,32 @@
+name: Check Specs & Metadata
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  validate:
+    name: Validate Manifest, Specs, & Models
+    runs-on: ubuntu-latest
+    env:
+      SCRIPT_DIR: .github/workflows
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - name: Clone repo
+        uses: actions/checkout@v4
+      - name: Install Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: adopt
+          java-version: 17
+      - name: Download TLA⁺ dependencies
+        run: $SCRIPT_DIR/setup.sh
+      - name: Check models
+        run: $SCRIPT_DIR/wrapper.sh
+
+

.github/workflows/setup.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+# Get TLA⁺ tools
+wget -nv http://nightly.tlapl.us/dist/tla2tools.jar -P "."

.github/workflows/wrapper.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+# A small wrapper around TLC
+TLC_PATH=$1
+
+TLC_COMMAND="java -Dtlc2.TLC.stopAfter=180 -Dtlc2.TLC.ide=Github -Dutil.ExecutionStatisticsCollector.id=abcdef60f238424fa70d124d0c77ffff -cp tla2tools.jar tlc2.TLC -workers auto -lncheck final -tool -deadlock"
+find . -mindepth 1 -maxdepth 1 -type d '!' -exec test -e "{}/.ciignore" ';' -print | grep -v ".git" | xargs -n 1 "$TLC_COMMAND"
+
+