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File name : filter-tasks

Content :

#! /bin/sh
#
# Filter a list of tasks based on whether they are listed in
# tasksel/force-tasks, tasksel/limit-tasks, or tasksel/skip-tasks. We take a
# list of all displayable tasks as arguments. In the output file (first
# argument), we emit a series of lines each of one of these two forms, with
# the same meaning as in Test-new-install:
#
#   task-name install
#   task-name skip
#
# Tasks that should be shown as normal are omitted.
#
# (Yes, this could be done as part of the new-install test. However, until
# such time as tasksel's core uses debconf, this is very slow because it
# requires starting up debconf once per task.)

set -e

. /usr/share/debconf/confmodule

OUTPUT="$1"
shift

FORCE=
if db_fget tasksel/force-tasks seen && [ "$RET" = true ]; then
	db_get tasksel/force-tasks
	FORCE="$(echo "$RET" | sed 's/,/ /g')"
fi

LIMIT=
if db_fget tasksel/limit-tasks seen && [ "$RET" = true ]; then
	db_get tasksel/limit-tasks
	LIMIT="$(echo "$RET" | sed 's/,/ /g')"
fi

SKIP=
if db_fget tasksel/skip-tasks seen && [ "$RET" = true ]; then
	db_get tasksel/skip-tasks
	SKIP="$(echo "$RET" | sed 's/,/ /g')"
fi

for task; do
	for force in $FORCE; do
		if [ "$task" = "$force" ]; then
			echo "$task install" >> "$OUTPUT"
			continue 2
		fi
	done

for skip in $SKIP; do
		if [ "$task" = "$skip" ]; then
			echo "$task skip" >> "$OUTPUT"
			continue 2
		fi
	done

if [ "$LIMIT" ]; then
		found=0
		for limit in $LIMIT; do
			if [ "$task" = "$limit" ]; then
				found=1
				break
			fi
		done
		if [ "$found" = 0 ]; then
			echo "$task skip" >> "$OUTPUT"
		fi
	fi
done

exit 0