cros_workon: remove logic for handling ~ in workon file

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 117 matching lines @@
     local name=$(canonicalize_name "${atom}")
     [ -n "${name}" ] || return 1
     names+=" ${name}"
   done
 
   echo "${names}"
 }
 
 # Display ebuilds currently part of the live branch and open for development.
 show_live_ebuilds () {
-  sed -n 's/^[~=]\(.*\)-9999$/\1/p' "${WORKON_FILE}"
+  sed -n 's/^=\(.*\)-9999$/\1/p' "${WORKON_FILE}"
 }
 
 # Display ebuilds currently part of the live branch and open for development
 # for any board that currently has live ebuilds.
 show_all_live_ebuilds () {
   for workon_file in ${WORKON_DIR}/*; do
     if [ -s "${workon_file}" ]; then
       echo -e "${V_BOLD_GREEN}$(basename ${workon_file}):${V_VIDOFF}"
-      sed -n 's/^[~=]\(.*\)-9999$/    \1/p' "${workon_file}"
+      sed -n 's/^=\(.*\)-9999$/    \1/p' "${workon_file}"
       echo ""
     fi
   done
 }
 
 # This is called only for "cros-workon start". We dont handle the "stop" case since the local changes are ignored anyway since the 9999.ebuild is masked and we dont want to deal with what to do with the user's local changes.
 regen_manifest_and_sync() {
   # Nothing to do unless you are working on the minilayout
   local manifest=${CHROOT_TRUNK_DIR}/.repo/manifest.xml
   if [ $(basename $(readlink -f ${manifest})) != "minilayout.xml" ]; then
@@ skipping 11 matching lines @@
   echo "Please run \"repo sync\" now."
 }
 
 # Move a stable ebuild to the live development catgeory.  The ebuild
 # src_unpack step fetches the package source for local development.
 ebuild_to_live () {
   local atoms=$1
   local atoms_success=""
 
   for atom in ${atoms}; do
-    if ! grep -qx "[~=]${atom}-9999" "${WORKON_FILE}" ; then
+    if ! grep -qx "=${atom}-9999" "${WORKON_FILE}" ; then
       if sudo bash -c "echo \"=${atom}-9999\" >> \"${WORKON_FILE}\""; then
         atoms_success="${atoms_success} ${atom}"
       fi
     else
       warn "Already working on ${atom}"
     fi
   done
   [ -n "${atoms_success}" ] && regen_manifest_and_sync && \
     info "Started working on '${atoms_success/ /}' for '${BOARD_STR}'"
 }
 
 # Move a live development ebuild back to stable.
 ebuild_to_stable () {
   local atoms=$1
   local atoms_success=""
 
   for atom in ${atoms}; do
-    if grep -qx "[~=]${atom}-9999" "${WORKON_FILE}" ; then
-      if sudo sed -e "/^[~=]${atom/\//\\/}-9999\$/d" -i "${WORKON_FILE}"; then
+    if grep -qx "=${atom}-9999" "${WORKON_FILE}" ; then
+      if sudo sed -e "/^=${atom/\//\\/}-9999\$/d" -i "${WORKON_FILE}"; then
         atoms_success="${atoms_success} ${atom}"
       fi
     else
       warn "Not working on ${atom}"
     fi
   done
   [ -n "${atoms_success}" ] && \
     info "Stopped working on '${atoms_success/ /}' for '${BOARD_STR}'"
 }
 
@@ skipping 30 matching lines @@
 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 ${BOARD_KEYWORD} ;;
   list-all) show_all_live_ebuilds ;;
   iterate)ebuild_iterate "${ATOM_LIST}" ;;
   *)      die "$(basename $0): command '${WORKON_CMD}' not recognized" ;;
 esac