#compdef svn svnadmin svnadmin-static=svnadmin

_svn () {
  local curcontext="$curcontext" state line expl ret=1

  _arguments -C \
    '(-)--help[print help information]' \
    '(- *)--version[print client version information]' \
    '1: :->cmds' \
    '*:: :->args' && ret=0

  if [[ -n $state ]] && (( ! $+_svn_cmds )); then
    typeset -gHA _svn_cmds
    _svn_cmds=(
      ${=${(f)${${"$(LC_ALL=C _call_program commands svn help)"#l#*Available subcommands:}%%Subversion is a tool*}}/(#s)[[:space:]]#(#b)([a-z]##)[[:space:]]#(\([a-z, ?]##\))#/$match[1] :$match[1]${match[2]:+:${${match[2]//[(),]}// /:}}:}
    )
  fi

  case $state in
    cmds)
      _wanted commands expl 'svn command' _svn_commands && ret=0
    ;;
    args)
      local cmd args usage
      typeset -gHA _cache_svn_status

      cmd="${${(k)_svn_cmds[(R)*:$words[1]:*]}:-${(k)_svn_cmds[(i):$words[1]:]}}"
      if (( $#cmd )); then
        curcontext="${curcontext%:*:*}:svn-${cmd}:"

        usage=${${(M)${(f)"$(LC_ALL=C _call_program options svn help $cmd)"}:#usage:*}#usage:*$cmd] }
        args=(
          ${=${${${(M)${(f)"$(LC_ALL=C _call_program options svn help $cmd)"##*Valid options:}:#* :*}%% #:*}/ arg/:arg:}/(#b)-([[:alpha:]]) \[--([a-z-]##)\](:arg:)#/(--$match[2])-$match[1]$match[3] (-$match[1])--$match[2]$match[3]}
        )

        case $cmd in;
          add)
            args+=(
              '*:file:_files -g "*(^e:_svn_controlled:)"'
            )
          ;;
          commit)
            args+=(
              '*:file:_files -g "*(e:_svn_status:)"'
            )
          ;;
          delete)
            args+=(
              '*:file:_files -g ".svn(/e:_svn_deletedfiles:)"'
            )
          ;;
          help)
            args+=(
              '*::sub command:_svn_commands'
            )
          ;;
          log)
            args+=(
              '1: : _alternative "files:file:_files -g \*\(e:_svn_controlled:\)" "urls:URL:_svn_urls"'
	      '*:file:_files -g "*(e:_svn_controlled:)"'
            )
          ;;
          revert)
            args+=(
              '*:file:_files -g "(.svn|*)(/e:_svn_deletedfiles:,e:_svn_status:)"'
            )
          ;;
          *)
            case $usage in
              *(SRC|DST|TARGET|URL*PATH)*)
                args+=(
	          '*: : _alternative "files:file:_files" "urls:URL:_svn_urls"'
	        )
	      ;;
              *URL*) args+=( ':URL:_svn_urls' ) ;;
              *PATH*) args+=( '*:file:_files' ) ;;
            esac
          ;;
        esac

        _arguments "$args[@]" && ret=0

      else
        _message "unknown svn command: $words[1]"
      fi
    ;;
  esac

  return ret
}

_svnadmin () {
  local curcontext="$curcontext" state line ret=1

  _arguments -C \
    '(-)--help[print help information]' \
    '(- *)--version[print client version information]' \
    '1: :->cmds' \
    '*:: :->args' && ret=0

  if [[ -n $state ]] && (( ! $+_svnadmin_cmds )); then
    typeset -gHA _svnadmin_cmds
    _svnadmin_cmds=(
      ${=${(f)${${"$(LC_ALL=C _call_program commands svnadmin help)"#l#*Available subcommands:}}}/(#s)[[:space:]]#(#b)([-a-z]##)[[:space:]]#(\([a-z, ?]##\))#/$match[1] :$match[1]${match[2]:+:${${match[2]//[(),]}// /:}}:}
    )
  fi

  case $state in
    cmds)
      _wanted commands expl 'svnadmin command' _svnadmin_commands && ret=0
    ;;
    args)
      local cmd args usage

      cmd="${${(k)_svnadmin_cmds[(R)*:$words[1]:*]}:-${(k)_svnadmin_cmds[(i):$words[1]:]}}"
      if (( $#cmd )); then
        curcontext="${curcontext%:*:*}:svnadmin-${cmd}:"

        usage=${${(M)${(f)"$(LC_ALL=C _call_program options svnadmin help $cmd)"}:#$cmd: usage:*}#$cmd: usage: svnadmin $cmd }
        args=(
          ${=${${${(M)${(f)"$(LC_ALL=C _call_program options svnadmin help $cmd)"##*Valid options:}:#*:*}%% #:*}/ arg/:arg:}/(#b)-([[:alpha:]]) \[--([a-z-]##)\](:arg:)#/(--$match[2])-$match[1]$match[3] (-$match[1])--$match[2]$match[3]}
        )
        if [[ $_svnadmin_subcmd_usage == *REPOS_PATH* ]]; then
          args+=( ":path:_files -/" )
        elif [[ $cmd = help ]]; then
          args+=( "*:subcommand:_svnadmin_commands" )
        fi

        _arguments "$args[@]" && ret=0
      else
        _message "unknown svnadmin command: $words[1]"
      fi
    ;;
  esac

  return ret
}

(( $+functions[_svn_controlled] )) ||
_svn_controlled() {
  [[ -f ${(M)REPLY##*/}.svn/text-base/${REPLY##*/}.svn-base ]]
}

(( $+functions[_svn_deletedfiles] )) ||
_svn_deletedfiles() {
  # Typical usage would be _files -g '.svn(/e:_svn_deletedfiles:)'
  local cont controlled
  reply=( )
  [[ $REPLY = (*/|).svn ]] || return
  controlled=( $REPLY/text-base/*.svn-base(N:r:t) )
  for cont in ${controlled}; do
    [[ -e $REPLY:h/$cont ]] || reply+=( ${REPLY%.svn}$cont )
  done
}

(( $+functions[_svn_status] )) ||
_svn_status() {
  local dir=$REPLY:h
  local pat="${1:-([ADMR~]|?M)}"

  if (( ! $+_cache_svn_status[$dir] )); then
    _cache_svn_status[$dir]="$(_call_program files svn status -N $dir)"
  fi

  (( ${(M)#${(f)_cache_svn_status[$dir]}:#(#s)${~pat}*$REPLY} ))
}

(( $+functions[_svn_urls] )) ||
_svn_urls() {
  local expl

  if [[ -prefix *: ]]; then
    _urls
  else
    compset -S '[^:]*'
    _wanted url-schemas expl 'URL schema' compadd -S '' - \
        file:// http:// https:// svn:// svn+ssh://
  fi
}

(( $+functions[_svn_commands] )) ||
_svn_commands() {
  compadd "$@" -k _svn_cmds || compadd "$@" ${(s.:.)_svn_cmds}
}

(( $+functions[_svnadmin_command] )) ||
_svnadmin_commands() {
  compadd "$@" -k _svnadmin_cmds || compadd "$@" ${(s.:.)_svnadmin_cmds}
}

_subversion () {
  case $service in
    (svn) _svn "$@" ;;
    (svnadmin) _svnadmin "$@" ;;
  esac
}

_subversion "$@"