bashrc: Add bash_completion on FreeBSD

.bashrc

@@ -1,12 +1,20 @@
 #!/usr/bin/env bash
 
-command -v port >/dev/null &&
-    command -v uname >/dev/null &&
-    [ $(uname) == 'Darwin' ] &&  . /opt/local/etc/bashrc.mac
-
 simplefind() { find . -iname '*'"$@"'*'; }
 simpleplay() {
   find . -iname '*'"$@"'*' -print0 \
     | xargs -0 mpv --no-audio-display \
   ;
 }
+
+command -v uname >/dev/null &&
+  case $(uname) in
+    Darwin)
+      command -v port >/dev/null && . /opt/local/etc/bashrc.mac
+      ;;
+    FreeBSD)
+      [[ $PS1 && -f /usr/local/share/bash-completion/bash_completion.sh ]] \
+        && . /usr/local/share/bash-completion/bash_completion.sh
+      ;;
+  esac \
+;