cros_mark_all_as_stable: introduce blacklist, set the initial blacklist source as ./

cros_mark_all_as_stable

 #!/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.
 
 # Wrapper scripts around cros_mark_as_stable that marks all packages as stable
 # that have CROS_WORKON_COMMIT that is different than the current HEAD commit
 # of the corresponding git repository.
 
@@ skipping 21 matching lines @@
 EBUILDCMD=ebuild-"${FLAGS_board}"
 
 PACKAGES=$( show_workon_ebuilds )
 
 GRAB_HEAD_COMMIT_CMD="git show HEAD | head -1 | cut -f 2 -d ' '"
 
 # Packages to mark as stable.
 PACKAGE_LIST=""
 # List of commit ids corresponding to package list.
 COMMIT_ID_LIST=""
+# List of IFS-delimited ebuilds to ignore.
+PACKAGE_BLACKLIST=""
+# File containing the names of blacklisted packages.
+BLACKLIST_FILE=$(dirname "${0}")/cros_mark_as_stable_blacklist
+
+[ -f "${BLACKLIST_FILE}" ] && \
+  PACKAGE_BLACKLIST=$(cat "${BLACKLIST_FILE}")
+
+function package_is_blacklisted() {
+  # Makes a list that looks like "\|package1\|package2\|...packagen".
+  local blist_regex=$(for i in ${PACKAGE_BLACKLIST}; do echo -n "\\|${i}"; done)
+  expr "${1}" : "^\(${blist_regex/\\|/}\)$" &> /dev/null && return 0 || return 1
+}
 
 # For each package, compares the head commit id to the commit id in the ebuild.
 # If they do not match, add the package and its commit id into ${PACKAGE_LIST}
 # and ${COMMIT_ID_LIST}
 for package in ${PACKAGES}; do
+  if package_is_blacklisted ${package}; then
+    info "${package} blacklisted, skipping"
+    continue
+  fi
   ebuild_path=$(${EQUERYCMD} which ${package}) || continue
   # Sets ${CROS_WORKON_SRCDIR} from the ebuild.
   eval $(${EBUILDCMD} ${ebuild_path} info) &> /dev/null || continue
   head_commit=$( cd "${CROS_WORKON_SRCDIR}" &&\
     bash -c "${GRAB_HEAD_COMMIT_CMD}" ) || continue
   egit_commit=$(\
     eval echo $(grep CROS_WORKON_COMMIT ${ebuild_path} | cut -f 2 -d '=')) ||\
       echo "No CROS_WORKON_COMMIT found in ${ebuild_path}"
   if [[ ${head_commit} != ${egit_commit} ]] && \
     [ -n "${head_commit}" ]; then
     info\
       "HEAD ${head_commit} != CROS_WORKON_COMMIT ${egit_commit} for ${package}"
     PACKAGE_LIST="${PACKAGE_LIST} ${package}"
     COMMIT_ID_LIST="${COMMIT_ID_LIST} ${head_commit}"
   elif [[ ${head_commit}  = ${egit_commit} ]]; then
     info "Commit id's match for ${package}"
   fi
 done
 
 info "Candidate package list ${PACKAGE_LIST}"
 info "With commit id list ${COMMIT_ID_LIST}"
 
 ./cros_mark_as_stable --board ${FLAGS_board} -p "${PACKAGE_LIST}" \
   -i "${COMMIT_ID_LIST}" -t ${FLAGS_tracking_branch} commit  || \
     die "Could not mark all packages as stable"