Bug 1554733 Use robustcheckout for periodic file udpates r=tomprince

Differential Revision: https://phabricator.services.mozilla.com//D32843

taskcluster/docker/periodic-updates/scripts/periodic_file_updates.sh

@@ -38,7 +38,6 @@ WGET="wget -nv"
 UNTAR="tar -zxf"
 DIFF="$(command -v diff) -u"
 BASEDIR="${HOME}"
-TOOLSDIR="${HOME}/tools"
 
 SCRIPTDIR="$(realpath "$(dirname "$0")")"
 HG="$(command -v hg)"
@@ -382,18 +381,11 @@ function compare_remote_settings_files {
   return 1
 }
 
-function clone_build_tools {
-  rm -fr "${TOOLSDIR}"
-  CLONE_CMD="${HG} clone https://hg.mozilla.org/build/tools ${TOOLSDIR}"
-  ${CLONE_CMD}
-}
-
 # Clones an hg repo
 function clone_repo {
   cd "${BASEDIR}"
   if [ ! -d "${REPODIR}" ]; then
-    CLONE_CMD="${HG} clone ${HGREPO} ${REPODIR}"
-    ${CLONE_CMD}
+    ${HG} robustcheckout --sharebase /tmp/hg-store -b default "${HGREPO}" "${REPODIR}"
   fi
 
   ${HG} -R ${REPODIR} pull
@@ -613,9 +605,6 @@ else
   fi
 fi
 
-# Currently less reliable than regular 'hg'
-# clone_build_tools
-
 clone_repo
 
 COMMIT_MESSAGE="No Bug, ${BRANCH} repo-update"