[build] Fix for #3365--Add grammar coverage tool.

.github/workflows/main.yml

@@ -309,3 +309,114 @@ jobs:
             After="${{github.event.after}}"
         fi
         bash _scripts/test-static-checks.sh -t ${{matrix.language}} -f diff $Before $After
+
+  coverage:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest]
+        language: [ CSharp ]
+    steps:
+    - name: Info
+      shell: bash
+      run: |
+        arch
+        uname -a
+        if [ -f /proc/cpuinfo ]; then cat /proc/cpuinfo; fi
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+    - name: Install Dotnet
+      uses: actions/setup-dotnet@v3.2.0
+      with:
+        dotnet-version: '7.0.x'
+    - name: Test Dotnet
+      run: |
+        dotnet --version
+        dotnet --info
+        dotnet --list-runtimes
+        dotnet --list-sdks
+    - name: Install Java
+      uses: actions/setup-java@v3
+      with:
+        java-version: '11'
+        distribution: 'zulu'
+    - name: Test Java
+      run: |
+        dotnet --version
+        java --version
+        javac --version
+    - name: Install Dart
+      if: ${{ matrix.language == 'Dart' }}
+      uses: dart-lang/setup-dart@v1
+    - name: Test Dart
+      if: ${{ matrix.language == 'Dart' }}
+      run: |
+        dart --version
+    - name: Install Go
+      if: ${{ matrix.language == 'Go' }}
+      uses: actions/setup-go@v4
+      with:
+        go-version: '^1.18.0'
+    - name: Test Go
+      if: ${{ matrix.language == 'Go' }}
+      run: |
+        go version
+    - name: Install Python
+      uses: actions/setup-python@v4.6.1
+      with:
+        python-version: '3.10'
+    - name: Test Python
+      run: |
+        python --version
+    - name: Upgrade Pip.
+      run: |
+        python -m ensurepip --upgrade
+    - name: Test Pip.
+      run: |
+        pip --version
+    - name: Install Antlr tool
+      run: |
+         pip install antlr4-tools
+    - name: Install JavaScript
+      if: ${{ matrix.language == 'JavaScript' }}
+      uses: actions/setup-node@v3.6.0
+      with:
+        node-version: '16.13.0'
+    - name: Test JavaScript
+      if: ${{ matrix.language == 'JavaScript' }}
+      run: |
+        node --version
+    - name: Install Trash
+      shell: bash
+      run: |
+        dotnet tool restore
+    - name: Test Trash install
+      shell: bash
+      run: |
+        dotnet trgen -- --help
+    - name: Test
+      shell: bash
+      run: |
+        if [ "${{github.event_name}}" == "pull_request" ]; then
+            Before="${{github.event.pull_request.base.sha}}"
+            After="${{github.event.pull_request.head.sha}}"
+        else
+            Before="${{github.event.before}}"
+            After="${{github.event.after}}"
+        fi
+        bash _scripts/test-cover.sh -f diff $Before $After
+    - name: Archive
+      shell: bash
+      run: |
+        mkdir downloads
+        find . -type f -name cover.html | xargs tar -uf archive.tar
+        cd downloads
+        tar -xvf ../archive.tar
+    - name: Upload Archive
+      uses: actions/upload-artifact@v2
+      with:
+        name: coverage
+        path: downloads

_scripts/templates/CSharp/st.test-cover.sh

@@ -0,0 +1,53 @@
+# Generated from trgen <version>
+
+# People often specify a test file directory, but sometimes no
+# tests are provided. Git won't check in an empty directory.
+# Test if the test file directory does not exist, or it is just
+# an empty directory.
+if [ ! -d ../<example_files_unix> ]
+then
+    echo "No test cases provided."
+    exit 0
+elif [ ! "$(ls -A ../<example_files_unix>)" ]
+then
+    echo "No test cases provided."
+    exit 0
+fi
+
+SAVEIFS=$IFS
+IFS=$(echo -en "\n\b")
+
+# Get a list of test files from the test directory. Do not include any
+# .errors or .tree files. Pay close attention to remove only file names
+# that end with the suffix .errors or .tree.
+files2=`find ../<example_files_unix> -type f | grep -v '.errors$' | grep -v '.tree$'`
+files=()
+for f in $files2
+do
+    dotnet triconv -- -f utf-8 $f > /dev/null 2>&1
+    if [ "$?" = "0" ]
+    then
+        files+=( $f )
+    fi
+done
+
+# Parse all input files.
+<if(individual_parsing)>
+# Individual parsing: NOT SUPPORTED!
+<else>
+# Group parsing.
+echo "${files[*]}" | dotnet trwdog -- dotnet trcover -- -x
+status=$?
+<endif>
+
+# trwdog returns 255 if it cannot spawn the process. This could happen
+# if the environment for running the program does not exist, or the
+# program did not build.
+if [ "$status" = "255" ]
+then
+    echo "Test failed."
+    exit 1
+fi
+
+rm -f $old/updated.txt $old/new_errors2.txt $old/new_errors.txt
+exit 0