VIM 設定檔(vimrc)切換方式 @ macOS 12.4

由於 coding style 的規劃，需要調整 vim editor 的行為：

set tabstop=4

set shiftwidth=4

set expandtab

因此，設計一個 vim_env.sh 來做切換啟用：

% vim --version

...

   system vimrc file: "$VIM/vimrc"

     user vimrc file: "$HOME/.vimrc"

 2nd user vimrc file: "~/.vim/vimrc"

      user exrc file: "$HOME/.exrc"

       defaults file: "$VIMRUNTIME/defaults.vim"

  fall-back for $VIM: "/usr/share/vim"

% cat project_vimrc 

try

    source $VIM/vimrc 

catch

    echo "\$VIM/vimrc not found"

endtry

set tabstop=4

set shiftwidth=4

set expandtab

% cat vim_env.sh

#!/bin/bash

SCRIPT_DIR="$( cd -- "$( dirname -- "${BASH_SOURCE[0]:-$0}"; )" &> /dev/null && pwd 2> /dev/null; )";

alias vim='vim -u $SCRIPT_DIR/project_vimrc'

echo "Update vim environment (using 'type vim' to show raw command) "

% type vim

vim is an alias for vim -u $SCRIPT_DIR/project_vimrc

接著，就靠 alias 來啟用專案 vimrc