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#!/bin/sh -e
# This helper program displays the base-config menu. If the selected item
# can also run under debconf, it runs it directly (this is fastest).
# Otherwise, it echos it to file descriptor 5, for base-config to read and
# run it outside of debconf. To indicate that the main menu should no
# longer be shown, it will exit without echoing anything to that file
# descriptor.
. /usr/share/debconf/confmodule
ADVANCE=$1
NEW=$2
db_capb backup
while :; do
# Title might get reset, so set it each time.
db_settitle base-config/title
if [ "$ADVANCE" = 1 ]; then
# Advance default to the next menu item.
db_get base-config/main-menu
NEXT=$(grep -A 1 "^$RET," menu-mapping | cut -d , -f 1 | tail -n 1)
if [ ! -z "$NEXT" ]; then
db_set base-config/main-menu $NEXT
fi
fi
ADVANCE=1
db_fset base-config/main-menu seen false
if db_input medium base-config/main-menu; then
# back all the way out is the same as exiting base-config
# however, note that I only go if the question will be
# shown. Else debconf's auto-backup code could emulate a
# backup based on a prior backup within a menu item.
db_go || exit 30
fi
db_get base-config/main-menu
menu_item=$(grep "^$RET," menu-mapping | cut -d , -f 2)
if grep -q '^Debconf: true' menu/$menu_item.mnu; then
# Run menu item inside debconf.
if ! ./menu/$menu_item $NEW 5>/dev/null; then
ADVANCE=0
# Drop priority to make sure the menu is displayed
# since a menu item is failing.
db_get debconf/priority
if [ "$RET" = high ] || [ "$RET" = critical ]; then
db_set debconf/priority medium
fi
else
if [ -s jump-to ]; then
# Jump to a specified menu item out of
# order.
db_set base-config/main-menu "$(grep ",$(cat jump-to)" menu-mapping | cut -d , -f 1 | tail -n 1)"
rm -f jump-to
ADVANCE=0
elif grep -q 'Exit-Menu: true' menu/$menu_item.mnu; then
# This menu item finished the install, so
# exit the menu.
exit 0
fi
fi
else
# The menu item cannot run inside debconf, so pass it back
# to base-config on the special communication fd.
echo $menu_item >&5
exit 0
fi
if grep -q '^Changes-Menu: true' menu/$menu_item.mnu; then
./prep-menu 0
fi
done
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