run ./pants tailor and fix CI workflow

.github/workflows/pants.yaml

@@ -42,6 +42,12 @@ jobs:
       uses: actions/setup-python@v1
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Download Apache `thrift` binary
+      run: |
+        mkdir -p "$HOME/.thrift"
+        curl --fail -L https://binaries.pantsbuild.org/bin/thrift/linux/x86_64/0.15.0/thrift  -o "$HOME/.thrift/thrift"
+        chmod +x "$HOME/.thrift/thrift"
+        echo "PATH=${PATH}:${HOME}/.thrift" >> $GITHUB_ENV
     - name: Bootstrap Pants
       run: |
         ./pants --version
@@ -50,9 +56,3 @@ jobs:
     - name: Test
       run: |
         ./pants test ::
-    - name: Upload pants log
-      uses: actions/upload-artifact@v2
-      with:
-        name: pants-log
-        path: .pants.d/pants.log
-      if: always()  # We want the log even on failures.

src/protobuf/simple_example/BUILD

@@ -1,4 +1,3 @@
 protobuf_sources(
-  python_source_root="src/python",
+    python_source_root="src/python",
 )
-

src/python/BUILD

@@ -0,0 +1 @@
+python_sources()

src/thrift/BUILD

@@ -1,3 +1,3 @@
 thrift_sources(
-  python_source_root="src/python",
+    python_source_root="src/python",
 )