cros_workon: redefine the concept of a "workon" package list to depend on the board

cros_workon

 #!/bin/bash
 
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This script moves ebuilds between 'stable' and 'live' states.
 # By default 'stable' ebuilds point at and build from source at the
 # last known good commit. Moving an ebuild to 'live' (via cros_workon start)
 # is intended to support development. The current source tip is fetched,
@@ skipping 42 matching lines @@
 [ -n "${FLAGS_board}" ] && [ "${FLAGS_host}" = ${FLAGS_TRUE} ] && \
   FLAGS_board="" # kill board
 [ -z "${FLAGS_board}" ] && [ "${FLAGS_host}" = ${FLAGS_FALSE} ] && \
   die "You must specify either --host or --board="
 
 if [ -n "${FLAGS_board}" ]; then
   BOARD_DIR=/build/"${FLAGS_board}" # --board specified
   EQUERYCMD=equery-"${FLAGS_board}"
   EBUILDCMD=ebuild-"${FLAGS_board}"
   BOARD_STR="${FLAGS_board}"
+  BOARD_KEYWORD="$(portageq-${FLAGS_board} envvar ARCH)"
 else
   BOARD_DIR="" # --host specified
   EQUERYCMD=equery
   EBUILDCMD=ebuild
   BOARD_STR="host"
+  BOARD_KEYWORD="$(portageq envvar ARCH)"
 fi
 
 WORKON_DIR=${CHROOT_TRUNK_DIR}/.config/cros_workon
 KEYWORDS_DIR=${BOARD_DIR}/etc/portage/package.keywords
 UNMASK_DIR=${BOARD_DIR}/etc/portage/package.unmask
 WORKON_FILE=${WORKON_DIR}/${FLAGS_board:-host}
 KEYWORDS_FILE=${KEYWORDS_DIR}/cros-workon
 UNMASK_FILE=${UNMASK_DIR}/cros-workon
 
 # TODO(msb): remove the backward compatibility after 09/01/2010
@@ skipping 10 matching lines @@
     die "ln -s ${WORKON_FILE} ${UNMASK_FILE}"
 fi
 sudo touch "${WORKON_FILE}" || \
   die "touch ${WORKON_FILE}"
 
 # Canonicalize package name to category/package.
 canonicalize_name () {
   local pkgfile
   local pkgname
 
-  if ! pkgfile=$(ACCEPT_KEYWORDS="**" ${EQUERYCMD} which $1); then
+  if ! pkgfile=$(ACCEPT_KEYWORDS="~${BOARD_KEYWORD}" ${EQUERYCMD} which $1); then
     warn "error looking up package $1" 1>&2
     return 1
   fi
 
   pkgname=$(\
     echo "${pkgfile}" |awk -F '/' '{ print $(NF-2) "/" $(NF-1) }')
 
   if ! grep -q "cros-workon" ${pkgfile}; then
     warn "${pkgname} is not a cros-workon package" 1>&2
     return 1
@@ skipping 133 matching lines @@
   for atom in ${atoms}; do
     info "Running \"${FLAGS_command}\" on ${atom}"
     eval $(${EBUILDCMD} $(${EQUERYCMD} which ${atom}) info)
     (cd "${CROS_WORKON_SRCDIR}" && bash -c "${FLAGS_command}")
   done
 }
 
 # --all makes commands operate on different lists
 if [ ${FLAGS_all} = "${FLAGS_TRUE}" ]; then
   case ${WORKON_CMD} in
-    start) ATOM_LIST=$(show_workon_ebuilds);;
+    start) ATOM_LIST=$(show_workon_ebuilds ${BOARD_KEYWORD});;
     stop|iterate) ATOM_LIST=$(show_live_ebuilds);;
     list) ;;
     *) die "--all is invalid for the given command";;
   esac
 else # not selected --all
   case ${WORKON_CMD} in
     start|stop|iterate)
       ATOM_LIST=$@
       if [ -z "${ATOM_LIST}" ]; then
         die "${WORKON_CMD}: No packages specified"
       elif ! ATOM_LIST=$(canonicalize_names "${ATOM_LIST}"); then
         die "Error parsing package list"
       fi;;
     *) ;;
   esac
 fi
 
 case ${WORKON_CMD} in
   start)  ebuild_to_live "${ATOM_LIST}" ;;
   stop)   ebuild_to_stable "${ATOM_LIST}" ;;
-  list)   [ ${FLAGS_all} = "${FLAGS_FALSE}" ] && show_live_ebuilds || show_workon_ebuilds ;;
+  list)   [ ${FLAGS_all} = "${FLAGS_FALSE}" ] && show_live_ebuilds || show_workon_ebuilds ${BOARD_KEYWORD} ;;
   iterate)ebuild_iterate "${ATOM_LIST}" ;;
   *)      die "$(basename $0): command '${WORKON_CMD}' not recognized" ;;
 esac