Add GitHub Actions non-test workflows

.github/workflows/build.yml

@@ -0,0 +1,73 @@
+name: build
+
+on:
+  push:
+  pull_request:
+    types: [ opened, edited ]
+
+jobs:
+  build-dists:
+    runs-on: ubuntu-latest
+    name: dists
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up CPython
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.x
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools wheel
+          pip install -U -r requirements.txt
+
+      - name: Build distributions
+        run: |
+          python ./setup.py sdist bdist_wheel
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: distributions
+          path: dist/*
+
+  build-docs:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ en, ja ]
+    name: docs (${{ matrix.language }})
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up CPython
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.x
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools wheel
+
+          # Install all features
+          pip install -e .[docs,speed,voice]
+
+      - name: Build docs
+        shell: bash
+        run: |
+          cd docs && sphinx-build -b html -D language=${SPHINX_LANGUAGE} -a -n -T -W --keep-going . _build
+        env:
+          SPHINX_LANGUAGE: ${{ matrix.language }}
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        if: always()
+        with:
+          name: docs-${{matrix.language}}
+          path: docs/_build/*

.github/workflows/pyright.yml

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+name: pyright
+
+on:
+  push:
+  pull_request:
+    types: [ opened, edited ]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    name: check
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up CPython
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.x
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools wheel
+          pip install -U -r requirements.txt
+
+      - name: Setup node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: '16'
+
+      - name: Install pyright
+        run: |
+          npm install -g pyright
+
+      - name: Type check
+        run: |
+          # It is OK for the types to not pass at this stage
+          # We are just running it as a quick reference check
+          pyright || echo "Type checking did not pass"