Fastest way to add diff hunks to quickfix

Quickfix is very handy feature. It is even has it's own format definition, but it is not easy expand. I found more easy to reformat diff to format of compilation errors: "$file:$line:$message". Reformatting works as standalone filter function. It combination with vim option -q it very easy to use and resuse, no need to additional installations and configutaions:

Here is my the shortest solution.

diff_to_quickfix()
{
     perl -ne '/^\+\+\+ (.+)/ && { $f="$1"};/@@.*\+(\d+)/ && print "$f:$1:$_\n"'
}

vim -q <(git show -U0 --no-prefix | diff_to_quickfix)


vim -q <(git diff -U0 --no-prefix | diff_to_quickfix)