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#compdef stg

typeset -a subcmds

subcmds=( ${${${(M)${(f)"$(stg help 2> /dev/null)"}## *}#  }/#(#b)([^[:space:]]##)[[:space:]]##(*)/$match[1]:$match[2]} )

local curcontext="$curcontext"
local subcmd
local ret=1

if (( CURRENT == 2 )); then
  _describe -t commands 'stgit command' subcmds && ret=0
else
  shift words
  (( CURRENT-- ))
  subcmd="$words[1]"
  curcontext="${curcontext%:*}-${subcmd}:"

  case $subcmd in
    (push)
      _wanted -V "unapplied patches" expl "patch" \
       	compadd ${${(M)${(f)"$(stg series 2> /dev/null)"}##- *}#- } \
		&& ret=0
    ;;
    (pop)
      _wanted -V "applied patches" expl "patch" \
	compadd ${${(M)${(f)"$(stg series 2> /dev/null)"}##[+>] *}#[+>] } \
		&& ret=0
    ;;
    (edit|files|goto|rename|log|float|delete|sink|mail|sync|show|pick|hide|squash)
      _wanted -V "patches" expl "patch" \
	compadd $(stg series --noprefix 2> /dev/null) \
		&& ret=0
    ;;
    (ref*)
      last_word="$words[$CURRENT-1]"
      refresh_patch_options=( -p --patch )
      if [[ -n ${refresh_patch_options[(r)$last_word]} ]]; then
	_wanted -V "applied patches" expl "patch" \
	  compadd ${${(M)${(f)"$(stg series 2> /dev/null)"}##[+>] *}#[+>] } \
		  && ret=0
      else
	_files && ret=0
      fi
    ;;
    (*)
      _files && ret=0
    ;;
  esac
fi

return ret