ci: create load_vimrc.yml, update build_vim_from_source.sh

.github/workflows/load_vimrc.yml

@@ -0,0 +1,21 @@
+name: load_vimrc
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  load_vimrc:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: single vimrc with vi
+      run: vim.tiny -E -s -u .vimrc -c "qa!"
+    - name: install vim
+      run: sudo ./install/build_vim_from_source.sh 7.4.1689
+    - name: single vimrc
+      run: vim -E -s -u .vimrc -c "qa!"
+    - name: full vimrc
+      run: ln -s `pwd`/root/.vim ~/.vim && vim -E -s -c "qa!"

install/build_vim_from_source.sh

@@ -1,3 +1,4 @@
+#!/bin/bash
 set -e
 
 _uninstall_current_version() {
@@ -59,12 +60,7 @@ _install_vim() {
 	echo $vim_version > VIM_VERSION
 }
 
-# init build dir
-if [ ! -d ~/vimrc ]; then
-	echo "No vimrc dir found."
-	exit 1
-fi
-build_dir=~/vimrc/build
+build_dir=`pwd`/build
 mkdir -p $build_dir
 cd $build_dir
 touch VIM_VERSION