WIP: Add deploy step to CI

.github/workflows/build.yml

@@ -29,3 +29,46 @@ jobs:
 
       - name: Run tests
         run: lein with-profile +1.9:+1.10:+1.11 test
+
+  get-version:
+    runs-on: ubuntu-latest
+    outputs:
+      version: ${{ steps.get-version.outputs.version }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Get version
+        id: get-version
+        run: |
+          echo "version=$(head -n 1 project.clj | sed -e 's/^(defproject.*\"\(.*\)\"$/\1/')" \
+          >> "$GITHUB_OUTPUT"
+
+  deploy:
+    if: ${{ github.event_name == 'push' &&
+            # github.ref == 'refs/heads/master' &&
+            github.ref == 'refs/heads/fix/ci' &&
+            endsWith(needs.get-version.outputs.version, '-SNAPSHOT') }}
+    needs: [test, get-version]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '21'
+
+      - name: Setup Clojure
+        uses: DeLaGuardo/setup-clojure@12.3
+        with:
+          lein: '2.11.1'
+
+      - name: Deploy
+        env:
+          CLOJARS_USERNAME: ${{ secrets.CLOJARS_USERNAME }}
+          CLOJARS_PASSWORD: ${{ secrets.CLOJARS_PASSWORD }}
+        run: lein deploy snapshots
+