build: add clang-tidy support

Slow and generate a 100k log!

Better to fix cppcheck/coverity/gcc(/clang) report first.

Anyway, clang-tidy incorporates clang-modernize (port code
to use some C++11 features)

build.sh

@@ -24,10 +24,12 @@ useClang=0
 useCross=2
 CoverityBuild=0
 cppcheck=0
+clangTidy=0
 
 for ARG in "$@"; do
     case "$ARG" in
         --clean             ) cleanBuild=1 ;;
+        --clang-tidy        ) flags+=(-DCMAKE_EXPORT_COMPILE_COMMANDS=ON); clangTidy=1 ;;
         --clang             ) useClang=1 ;;
         --cppcheck          ) cppcheck=1 ;;
         --dev|--devel       ) flags+=(-DCMAKE_BUILD_TYPE=Devel) ;;
@@ -74,6 +76,7 @@ for ARG in "$@"; do
             echo
             echo "** Quality & Assurance (Please install the external tool) **"
             echo "--asan          : Enable Address sanitizer"
+            echo "--clang-tidy    : Do a clang-tidy analysis. Results can be found in build directory"
             echo "--cppcheck      : Do a cppcheck analysis. Results can be found in build directory"
             echo "--coverity      : Do a build for coverity"
 
@@ -128,6 +131,9 @@ else
     ncpu=$(grep -w -c processor /proc/cpuinfo)
 fi
 
+############################################################
+# CPP check build
+############################################################
 if [[ "$cppcheck" -eq 1 ]] && [[ -x `which cppcheck` ]]; then
     summary=cpp_check_summary.log
     rm -f $summary
@@ -149,13 +155,45 @@ if [[ "$cppcheck" -eq 1 ]] && [[ -x `which cppcheck` ]]; then
     exit 0
 fi
 
+############################################################
+# Clang tidy build
+############################################################
+if [[ "$clangTidy" -eq 1 ]] && [[ -x `which clang-tidy` ]]; then
+    compile_json=compile_commands.json
+    cpp_list=cpp_file.txt
+    summary=clang_tidy_summary.txt
+    rm -f $summary
+    touch $summary
+
+    grep '"file"' $compile_json | sed -e 's/"//g' | sed -e 's/^\s*file\s*:\s*//' > $cpp_list
+
+    for cpp in `cat $cpp_list`
+    do
+        # Check all, likely severals millions of log...
+        #clang-tidy -p $compile_json $cpp -checks='*' -header-filter='.*'
+
+        # Don't check header, don't check google/llvm coding conventions
+        echo "$count/$total"
+        clang-tidy -p $compile_json $cpp -checks='*,-llvm-*,-google-*'  >> $summary
+    done
+
+    exit 0
+fi
+
+############################################################
+# Coverity build
+############################################################
 if [[ "$CoverityBuild" -eq 1 ]] && [[ -x `which cov-build` ]]; then
     cov-build --dir $coverity_dir make -j"$ncpu" 2>&1 | tee -a $log
     # Warning: $coverity_dir must be the root directory
     (cd $build; tar caf $coverity_result $coverity_dir)
-else
+    exit 0
-    make -j"$ncpu" 2>&1 | tee -a $log
-    make install 2>&1 | tee -a $log
 fi
 
+############################################################
+# Real build
+############################################################
+make -j"$ncpu" 2>&1 | tee -a $log
+make install 2>&1 | tee -a $log
+
 exit 0