feat(run0): add run0 plugin

plugins/run0/run0.plugin.zsh

@@ -0,0 +1,44 @@
+# ------------------------------------------------------------------------------
+# Description
+# -----------
+#
+# run0 will be inserted before the command
+#
+# ------------------------------------------------------------------------------
+# Authors
+# -------
+#
+# * Daniel Braunwarth <oss@braunwarth.dev>
+#
+# ------------------------------------------------------------------------------
+
+__run0-replace-buffer() {
+  local old=$1 new=$2 space=${2:+ }
+
+  # if the cursor is positioned in the $old part of the text, make
+  # the substitution and leave the cursor after the $new text
+  if [[ $CURSOR -le ${#old} ]]; then
+    BUFFER="${new}${space}${BUFFER#$old }"
+    CURSOR=${#new}
+  # otherwise just replace $old with $new in the text before the cursor
+  else
+    LBUFFER="${new}${space}${LBUFFER#$old }"
+  fi
+}
+
+run0-command-line() {
+  # If line is empty, get the last run command from history
+  [[ -z $BUFFER ]] && LBUFFER="$(fc -ln -1)"
+
+  case "$BUFFER" in
+    run0\ *) __run0-replace-buffer "run0" "" ;;
+    *) LBUFFER="run0 $LBUFFER" ;;
+  esac
+}
+
+zle -N run0-command-line
+
+# Defined shortcut keys: [Esc] [Esc]
+bindkey -M emacs '\e\e' run0-command-line
+bindkey -M vicmd '\e\e' run0-command-line
+bindkey -M viins '\e\e' run0-command-line