Configure Vim for systemctl editing

fish/default.fish

@@ -89,7 +89,11 @@ end
 set -gx GOPATH $HOME/go:$HOME/workrepo/go
 set -gx GOPROXY "goproxy.cn,direct"
 set -gx GOSUMDB "sum.golang.google.cn"
+# editor
+set -gx SYSTEMD_EDITOR vim
 set -gx EDITOR vim
+set -gx VISUAL vim
+set -gx SUDO_EDITOR vim
 add_to_path $HOME/go/bin
 add_to_path $HOME/.yarn/bin $HOME/.config/yarn/global/node_modules/.bin
 function gtr
@@ -184,8 +188,10 @@ function sudo --wraps sudo
     if test (count $argv) -gt 0
         set cmd $argv[1]
         switch $cmd
+            case systemctl
+                command sudo env SYSTEMD_EDITOR=$SYSTEMD_EDITOR systemctl $argv[2..-1]
             case sc
-                command sudo systemctl $argv[2..-1]
+                command sudo env SYSTEMD_EDITOR=$SYSTEMD_EDITOR systemctl $argv[2..-1]
             case jc
                 command sudo journalctl $argv[2..-1]
             case dc