# Disable excluded components in var/lib/rear/layout/disklayout.conf # Excluded components have been marked as 'done ...' in var/lib/rear/layout/disktodo.conf test -s "$LAYOUT_TODO" || return 0 # Below there is a (perhaps oversophisticated?) distinction what messages should appear # - only in the log file in debug '-d' mode via 'Debug' # - in the log file and on the user's terminal in debug '-d' mode via 'DebugPrint' # - in the log file and on the user's terminal in verbose '-v' mode via 'LogPrint' # so that the info that is shown on the user's terminal (hopefully) looks consistent. # This distinction matches the same kind of distinction in the # mark_as_done and mark_tree_as_done functions in lib/layout-functions.sh DebugPrint "Disabling excluded components in $LAYOUT_FILE" # Disable component $1 $2 in disklayout.conf # where $1 is the component keyword/type that is always at the first position # and the component value/name $2 is at the second position: disable_component_at_second_position() { # The trailing blank in "... $2 " is crucial to not match wrong components # for example the component "part /dev/sda1" must not match accidentally # other components like "part /dev/sda12" in var/lib/rear/layout/disklayout.conf if grep -q "#$1 $2 " $LAYOUT_FILE ; then DebugPrint "Component '$1 $2' is disabled in $LAYOUT_FILE" return 0 fi if ! grep -q "^$1 $2 " $LAYOUT_FILE ; then Debug "Cannot disable component because there is no '^$1 $2 ' in $LAYOUT_FILE" return 1 fi LogPrint "Disabling component '$1 $2' in $LAYOUT_FILE" sed -i "s|^$1 $2 |\#$1 $2 |" "$LAYOUT_FILE" } # Disable component $1 ... $2 in disklayout.conf # where $1 is the component keyword/type that is always at the first position # and the component value/name $2 is at the third position: disable_component_at_third_position() { # The trailing blank in "... $2 " is crucial to not match wrong components # for example the component "part /dev/sda1" must not match accidentally # other components like "part /dev/sda12" in var/lib/rear/layout/disklayout.conf if grep -q "#$1 [^ ][^ ]* $2 " $LAYOUT_FILE ; then DebugPrint "Component '$1 ... $2' is disabled in $LAYOUT_FILE" return 0 fi if ! grep -q "^$1 [^ ][^ ]* $2 " $LAYOUT_FILE ; then Debug "Cannot disable component because there is no '^$1 ... $2 ' in $LAYOUT_FILE" return 1 fi LogPrint "Disabling component '$1 ... $2' in $LAYOUT_FILE" sed -i -r "s|^$1 ([^ ]+) $2 |\#$1 \1 $2 |" "$LAYOUT_FILE" } # In disktodo.conf the component status ('todo'/'done') is always at the first position # and the component value/name is always at the second position # and the component keyword/type is always at the third position: while read status name type junk ; do case "$type" in (part) # find the immediate parent name=$( grep "^$name " "$LAYOUT_DEPS" | cut -d " " -f 2 ) disable_component_at_second_position "$type" "$name" ;; (lvmvol) name=${name#/dev/mapper/} # split between vg and lv is single dash # Device mapper doubles dashes in vg and lv vg=$( sed "s/\([^-]\)-[^-].*/\1/;s/--/-/g" <<< "$name" ) lv=$( sed "s/.*[^-]-\([^-]\)/\1/;s/--/-/g" <<< "$name" ) sed -i -r "s|^($type /dev/$vg $lv )|\#\1|" "$LAYOUT_FILE" ;; (fs|btrfsmountedsubvol|lvmdev) name=${name#$type:} disable_component_at_third_position "$type" "$name" ;; (opaldisk) name=${name#$type:} disable_component_at_second_position "$type" "$name" ;; (swap) name=${name#swap:} disable_component_at_second_position "$type" "$name" ;; (*) disable_component_at_second_position "$type" "$name" ;; esac done < <( grep "^done" "$LAYOUT_TODO" ) # Disable all LVM PVs of excluded VGs: while read status name junk ; do disable_component_at_second_position "lvmdev" "$name" done < <( grep -E "^done [^ ]+ lvmgrp" "$LAYOUT_TODO" )