updated CI to Clang 20

Author: firewave

.github/workflows/asan.yml

@@ -53,7 +53,7 @@ jobs:
           sudo apt-get purge --auto-remove llvm python3-lldb-14 llvm-14
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
-          sudo ./llvm.sh 19
+          sudo ./llvm.sh 20
 
       - name: Install Qt ${{ env.QT_VERSION }}
         uses: jurplel/install-qt-action@v4
@@ -75,8 +75,8 @@ jobs:
         run: |
           cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DUSE_QT6=On -DWITH_QCHART=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_ADDRESS=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
         env:
-          CC: clang-19
-          CXX: clang++-19
+          CC: clang-20
+          CXX: clang++-20
 
       - name: Build cppcheck
         run: |

.github/workflows/clang-tidy.yml

@@ -40,8 +40,8 @@ jobs:
           sudo apt-get purge --auto-remove llvm python3-lldb-14 llvm-14
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
-          sudo ./llvm.sh 19
-          sudo apt-get install -y clang-tidy-19
+          sudo ./llvm.sh 20
+          sudo apt-get install -y clang-tidy-20
 
       - name: Install Qt ${{ env.QT_VERSION }}
         uses: jurplel/install-qt-action@v4
@@ -53,14 +53,14 @@ jobs:
 
       - name: Verify clang-tidy configuration
         run: |
-          clang-tidy-19 --verify-config
+          clang-tidy-20 --verify-config
 
       - name: Prepare CMake
         run: |
           cmake -S . -B cmake.output -G "Unix Makefiles" -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DUSE_QT6=On -DWITH_QCHART=On -DENABLE_CHECK_INTERNAL=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DCPPCHK_GLIBCXX_DEBUG=Off -DWARNINGS_ARE_ERRORS=On
         env:
-          CC: clang-19
-          CXX: clang++-19
+          CC: clang-20
+          CXX: clang++-20
 
       - name: Prepare CMake dependencies
         run: |

.github/workflows/iwyu.yml

@@ -172,8 +172,8 @@ jobs:
           sudo apt-get purge --auto-remove llvm python3-lldb-14 llvm-14
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
-          sudo ./llvm.sh 19
-          sudo apt-get install -y clang-tools-19
+          sudo ./llvm.sh 20
+          sudo apt-get install -y clang-tools-20
 
       - name: Install libc++
         if: matrix.stdlib == 'libc++'
@@ -193,8 +193,8 @@ jobs:
           # TODO: why does it build dmake in the next step?
           cmake -S . -B cmake.output -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DUSE_QT6=On -DWITH_QCHART=On -DENABLE_CHECK_INTERNAL=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCPPCHK_GLIBCXX_DEBUG=Off -DUSE_MATCHCOMPILER=Off -DEXTERNALS_AS_SYSTEM=On -DUSE_LIBCXX=${{ matrix.use_libcxx }}
         env:
-          CC: clang-19
-          CXX: clang++-19
+          CC: clang-20
+          CXX: clang++-20
 
       - name: Prepare CMake dependencies
         run: |
@@ -211,7 +211,7 @@ jobs:
       - name: clang-include-cleaner
         run: |
           # TODO: run multi-threaded
-          find $PWD/cli $PWD/lib $PWD/test $PWD/gui -maxdepth 1 -name "*.cpp" | xargs -t -n 1 clang-include-cleaner-19 --print=changes --extra-arg=-w --extra-arg=-stdlib=${{ matrix.stdlib }} -p cmake.output > clang-include-cleaner.log 2>&1
+          find $PWD/cli $PWD/lib $PWD/test $PWD/gui -maxdepth 1 -name "*.cpp" | xargs -t -n 1 clang-include-cleaner-20 --print=changes --extra-arg=-w --extra-arg=-stdlib=${{ matrix.stdlib }} -p cmake.output > clang-include-cleaner.log 2>&1
 
       - uses: actions/upload-artifact@v4
         if: success() || failure()

.github/workflows/tsan.yml

@@ -53,7 +53,7 @@ jobs:
           sudo apt-get purge --auto-remove llvm python3-lldb-14 llvm-14
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
-          sudo ./llvm.sh 19
+          sudo ./llvm.sh 20
 
       - name: Install Qt ${{ env.QT_VERSION }}
         uses: jurplel/install-qt-action@v4
@@ -74,8 +74,8 @@ jobs:
         run: |
           cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DUSE_QT6=On -DWITH_QCHART=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_THREAD=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=Off -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
         env:
-          CC: clang-19
-          CXX: clang++-19
+          CC: clang-20
+          CXX: clang++-20
 
       - name: Build cppcheck
         run: |

.github/workflows/ubsan.yml

@@ -53,7 +53,7 @@ jobs:
           sudo apt-get purge --auto-remove llvm python3-lldb-14 llvm-14
           wget https://apt.llvm.org/llvm.sh
           chmod +x llvm.sh
-          sudo ./llvm.sh 19
+          sudo ./llvm.sh 20
 
       - name: Install Qt ${{ env.QT_VERSION }}
         uses: jurplel/install-qt-action@v4
@@ -75,8 +75,8 @@ jobs:
         run: |
           cmake -S . -B cmake.output -DCMAKE_BUILD_TYPE=RelWithDebInfo -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=On -DUSE_QT6=On -DWITH_QCHART=On -DUSE_MATCHCOMPILER=Verify -DANALYZE_UNDEFINED=On -DENABLE_CHECK_INTERNAL=On -DUSE_BOOST=On -DCPPCHK_GLIBCXX_DEBUG=Off -DCMAKE_DISABLE_PRECOMPILE_HEADERS=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On -DDISABLE_DMAKE=On -DFILESDIR= -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
         env:
-          CC: clang-19
-          CXX: clang++-19
+          CC: clang-20
+          CXX: clang++-20
 
       - name: Build cppcheck
         run: |