added wrokflow

.github/workflows/nightly.yml

@@ -0,0 +1,38 @@
+name: Nightly Build
+
+on:
+  schedule:
+    - cron: '0,10,20,30,40,50 * * * *'  # This schedule runs every night at midnight UTC
+
+jobs:
+  nightly:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Ensure workspace ownership
+      run: echo "chown -R $USER $GITHUB_WORKSPACE" && sudo chown -R $USER $GITHUB_WORKSPACE
+
+    - name: Check out code
+      uses: actions/checkout@v3
+
+    - name: Prepare release body
+      run: |
+        RELEASE_DATETIME=$(date --rfc-3339=seconds)
+        cat <<EOF > release_template.md
+        Release created at $RELEASE_DATETIME
+        EOF
+        envsubst < release_template.md > release_body.md
+
+    - name: Build source tarball
+      run: git archive --format=tar HEAD | gzip > archive.tgz
+
+    - name: Create or overwrite a releae
+      # https://github.com/actions/upload-release-asset has been replaced by https://github.com/softprops/action-gh-release
+      uses: softprops/action-gh-release@v1
+      with:
+        token: ${{ secrets.MY_GITHUB_TOKEN }}  # Use the secret as an environment variable
+        prerelease: true
+        tag_name: nightly
+        # The body field does not support environment variable substitution directly.
+        body_path: release_body.md
+        files: |
+          *.tgz

.github/workflows/tests.yml

@@ -0,0 +1,18 @@
+name: tests
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    types: [ opened, synchronize, reopened, edited ]
+
+jobs:
+  tests:
+    name: tests
+    runs-on: ubuntu-latest
+    steps:
+    - name: Ensure workspace ownership
+      run: echo "chown -R $USER $GITHUB_WORKSPACE" && sudo chown -R $USER $GITHUB_WORKSPACE
+
+    - name: Check out code
+      uses: actions/checkout@v3