my vimrc script editing environment wrappers

.vimrc

autocmd FileType * exe('let comp_cmd="!~/.vim/bin/build_' . &filetype . '.sh ' . expand("%:p") . '"')
autocmd FileType * exe('let run_cmd="!~/.vim/bin/build_' . &filetype . '.sh ' . expand("%:p") . ' \|less -cN"')
map z :exec comp_cmd<enter><enter>
map R :exec run_cmd<enter><enter>

build_python.sh

#!/bin/bash
export PYTHONDONTWRITEBYTECODE=1
file=$(readlink -e $1)
test -x "${file}" || chmod +x "${file}"

if grep '#!.*python3' ${file}; then
    #-B is to disable bycode / pyc files
    pver="python3 -B"
else
    pver="python -B"
fi

if python -m py_compile ${file} &>/dev/stdout; then
    echo "Executing"
    echo "BEGIN OUTPUT"
    ${pver} ${file} &>/dev/stdout
    echo "END OUTPUT"
else
    echo "Error executing"
fi

build_sh.sh

#!/bin/bash
file=$(readlink -e $1)

if [[ ! -x ${file} ]]; then
   chmod +x ${file}
   echo "Making File Executable ${file}"
fi

echo "Executing"
echo "BEGIN"
${file} &> /dev/stdout
echo "END"