neomake_testing.sh

#!/bin/bash

# Do a substitution on the files to get a pretty vimdiff:
#   %s/^  [0-9.]\+ \|^Neomake \[[0-9.]\+\]:/[TIME] /

# GVIM=/c/app/vim/vim80/gvim.exe
# VERSION=8.0.0027
GVIM=/c/app/vim/vim8.0.0021/gvim.exe
VERSION=8.0.0021
NEOMAKE=~/.vim/plugins/neomake
VIMRC=~/.vimrc_minimal
INPUT=~/Documents/test.rb
OUTPUT=c:/users/laci/Documents/neomake_694_vim_$VERSION.md
CHLOG=c:/users/laci/Documents/chlog.txt
SLEEP=2

cat_log()
{
  echo -e '\n#### ch_logfile()\n````' >> $OUTPUT
  cat $CHLOG >> $OUTPUT
  echo '````' >> $OUTPUT
  rm $CHLOG
}

header()
{
  echo -e '\n### ' $@ '\n````' >> $OUTPUT
}

footer()
{
  echo -e '\n````' >> $OUTPUT
  cat_log
}

# It does not writes to the messages, so we have to redir before the command.
vimcmd_redir()
{
  header $@
  $GVIM -u $VIMRC                \
    +"call ch_logfile('$CHLOG')" \
    +"redir >>$OUTPUT"           \
    +"$@"                        \
    +"sleep $SLEEP"              \
    +"qa!"                       \
    $INPUT
  footer
}

# Catch the output of `:messages`.
vimcmd_messages()
{
  header $@
  $GVIM -u $VIMRC                \
    +"call ch_logfile('$CHLOG')" \
    +"messages clear"            \
    +"$@"                        \
    +"sleep $SLEEP"              \
    +"redir >>$OUTPUT"           \
    +"messages"                  \
    +"qa!"                       \
    $INPUT
  footer
}

checkout()
{
  cd $NEOMAKE
  git checkout $1
  echo -e "\n## $1 branch ($(git rev-parse --short HEAD))" >> $OUTPUT
  cd -
}

main()
{
  vimcmd_redir    "let g:neomake_verbose = 3 | NeomakeInfo"
  vimcmd_messages "let g:neomake_verbose = 3 | Neomake"
  vimcmd_messages "let g:neomake_verbose = 3 | Neomake | Neomake"
  vimcmd_messages "let g:neomake_verbose = 3 | Neomake mri"
  vimcmd_messages "let g:neomake_verbose = 3 | Neomake rubocop"
  vimcmd_messages "let g:neomake_verbose = 3 | Neomake mri | Neomake mri"
  vimcmd_messages "let g:neomake_verbose = 3 | Neomake rubocop | Neomake rubocop"
  vimcmd_messages "let g:neomake_verbose = 3 | Neomake mri | Neomake rubocop"
  # Not works because it want to use Msys-Git's internal Vim (different version).
  # cd ~/.vim/plugins/neomake
  # mingw32-make testvim 2&>1 > ~/Documents/neomake_694_vim_$version_testvim.md
}

rm $OUTPUT

checkout master
main
checkout remove-vim-hack
main
vimcmd_redir "version"

sed -i "s/Messages maintainer.*//" $OUTPUT

Run in Msys-Git on Windows in the dir of gvim.exe