CI: Only run coverage jobs on master

Author: alamb

.github/coverage.yml

@@ -0,0 +1,56 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+name: Coverage
+
+# Trigger only on pushes to master, not pull requests
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+
+  coverage:
+    name: Coverage
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        arch: [ amd64 ]
+        rust: [ stable ]
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+      - name: Setup Rust toolchain
+        run: |
+          rustup toolchain install ${{ matrix.rust }}
+          rustup default ${{ matrix.rust }}
+      - name: Cache Cargo
+        uses: actions/cache@v3
+        with:
+          path: /home/runner/.cargo
+          key: cargo-coverage-cache3-
+      - name: Run coverage
+        run: |
+          rustup toolchain install stable
+          rustup default stable
+          cargo install --version 0.18.2 cargo-tarpaulin
+          cargo tarpaulin --all --out Xml
+      - name: Report coverage
+        continue-on-error: true
+        run: bash <(curl -s https://codecov.io/bash)

.github/workflows/rust.yml

@@ -62,33 +62,3 @@ jobs:
           rustup component add rustfmt
       - name: Run
         run: cargo fmt --all -- --check
-
-  coverage:
-    name: Coverage
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        arch: [ amd64 ]
-        rust: [ stable ]
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          submodules: true
-      - name: Setup Rust toolchain
-        run: |
-          rustup toolchain install ${{ matrix.rust }}
-          rustup default ${{ matrix.rust }}
-      - name: Cache Cargo
-        uses: actions/cache@v3
-        with:
-          path: /home/runner/.cargo
-          key: cargo-coverage-cache3-
-      - name: Run coverage
-        run: |
-          rustup toolchain install stable
-          rustup default stable
-          cargo install --version 0.18.2 cargo-tarpaulin
-          cargo tarpaulin --all --out Xml
-      - name: Report coverage
-        continue-on-error: true
-        run: bash <(curl -s https://codecov.io/bash)