Generate compile_commands.json from MSBuild

test.sh

# first rebuild solution

# then
echo '[' > compile_commands.json
find obj/v140/x64/Debug/ -name 'CL.command.*' | xargs iconv -f utf-16 -t utf-8 | grep -hF '/c' | sed -r -e 's#\\#/#g' -e 's/"/\\"/g' -e 's#/c .+ ((.:/.+)/[^/]+\.[^/]*)$#{\r\n\t"command": "clang-cl.exe -m64 --driver-mode=cl \0 -Wno-error",\r\n\t"file": "\1",\r\n\t"directory": "\2"\r\n},#g' >> compile_commands.json
echo ']' >> compile_commands.json

# example use
"C:\Program Files\Git\usr\bin\find.exe" src -name "*.cpp" | "C:\Program Files\Git\usr\bin\xargs.exe" -n1 -P1 -t "C:\Program Files\LLVM\bin\clang-check.exe" -p . -fixit
find src -name '*.cpp' | xargs -n1 -P1 -t 'C:\Program Files\LLVM\bin\clang-tidy.exe' -p . -header-filter=.* -fix -checks=cppcoreguidelines-pro-type-member-init
# other checks: modernize-use-override cppcoreguidelines-special-member-functions,cppcoreguidelines-pro-type-member-init


#### getting the directory right:

longest_common_prefix()
{
	readarray names
    declare -a parts
    declare i=0

    name=${names[0]}
    while x=$(dirname "$name"); [ "$x" != "/" ]
    do
        parts[$i]="$x"
        i=$(($i + 1))
        name="$x"
    done

    for prefix in "${parts[@]}" /
    do
        for name in "${names[@]}"
        do
            if [ "${name#$prefix/}" = "${name}" ]
            then continue 2
            fi
        done
        echo "$prefix"
        break
    done
}

handleFile()
{
	echo "$1"
  projectName=$(echo "$1" | sed -r 's#.+/([^/]+)/[^/]+.tlog/[^/]+.tlog$#\1#g')
	echo $projectName

	directory=$(iconv -f utf-16 -t utf-8 "$1" | grep -hF '^' | sed -r -e 's#\\#/#g' | sed 's/\^/\//' | longest_common_prefix)
	directory=${directory:1}
	echo $directory
	iconv -f utf-16 -t utf-8 "$1" | grep -hF '/c' | sed -r -e 's#\\#/#g' -e 's/"/\\"/g' -e "s#/c .+ ((.:/.+)/[^/]+\.[^/]*)\$#{\r\n\t\"command\": \"clang-cl.exe -m64 --driver-mode=cl \\0 -Wno-error\",\r\n\t\"file\": \"\\1\",\r\n\t\"directory\": \"$directory\"\r\n},#g" >> compile_commands.json
}

export -f handleFile
export -f longest_common_prefix

echo '[' > compile_commands.json
find obj/v140/x64/Debug -name 'CL.command.*' -exec bash -c 'handleFile "$0"' {} \;
echo ']' >> compile_commands.json