install or upgrade vim from source code on Centos 7

install-vim-from-source_on_Centos7.sh

#!/bin/bash -eu

#https://www.vim.org/git.php

echo -n "Input work directory (default to home) >> "
read WORKDIR
echo
test -z "$WORKDIR" && WORKDIR=~
test ! -e "$WORKDIR" && mkdir "$WORKDIR"
LOGFILE="$PWD/$WORKDIR"/vim/viminstall.log

sudo yum install -y python python-devel
sudo yum install -y python36u python36u-libs python36u-devel python36u-pip
sudo ln -s `which python3.6` $(dirname $(which python3.6))/python3
#ruby ruby-devel lua lua-devel luajit \
#luajit-devel ctags git \
#tcl-devel \
#perl perl-devel perl-ExtUtils-ParseXS \
#perl-ExtUtils-XSpp perl-ExtUtils-CBuilder \
#perl-ExtUtils-Embed

cd "$WORKDIR"
test ! -e vim && git clone https://github.com/vim/vim.git
cd vim
git pull
make distclean  # if you build Vim before
./configure --with-features=huge \
            --enable-multibyte \
            --enable-pythoninterp=yes \
            --with-python-config-dir=/lib64/python2.7/config \
            --enable-python3interp=yes \
            --with-python3-config-dir=/lib64/python3.6/config-3.6m-x86_64-linux-gnu/ \
            --enable-perlinterp=yes \
            --enable-cscope \
            --prefix=/usr/local | tee "$LOGFILE"

echo
echo -n "OK to make? Hit Enter to continue."; read A
make >> "$LOGFILE"
cd src
./vim --version
echo -n "OK to make install? Hit Enter to continue."; read A
VIMPATH=`which vim`
if [ -n $VIMPATH ]; then
  BKUPPATH="$VIMPATH"`date +%s`
  sudo cp -p "$VIMPATH" "$VIMPATH"`date +%s` # back up current vim
  echo "Old vim was backed up to $BKUPPATH."
fi
sudo make install >> "$LOGFILE"
echo
echo "Done!! Log file: $LOGFILE"

exit