startuptime.sh

#!/usr/bin/env bash

gen_vimrc() {
    cat <<EOT
function! s:startup()
  let dirs = []
  for i in range(${1%_*})
    call add(dirs, printf('testdir/test-$1/dir%03d', i))
  endfor
  let &rtp = join(dirs, ',')
endfunction

call s:startup()
$(
    for i in $(seq 0 "${2:-0}"); do
        echo "call script$i#nop()"
    done
)
EOT
}

for vim in vim[0-9]; do
    mkdir -p "startup/$vim"
    for k in 1_1000 10_100 100_10 1000_1; do
        vimrc="$(mktemp "${TMPDIR:-/tmp}/vimrc.XXXXXX")"
        if [[ ! -f "$vimrc" ]]; then
            echo "Could not create vimrc" >&2
            continue
        fi
        gen_vimrc "$k" "$1" >"$vimrc"
        result="startup/$vim/result-$k.txt"
        ./"$vim" -u "$vimrc" -N --startuptime "$result" -c q
        cat <<EOT
$vim $k result: $(printf "% 10s" "$(tail -n1 "$result" | cut -d' ' -f1)")
EOT
        rm -f "$vimrc"
    done
done