1 files changed, 108 insertions, 0 deletions
diff --git a/share/create-scripts/debconf.d/0001-preseed-file b/share/create-scripts/debconf.d/0001-preseed-file
new file mode 100755
index 0000000..d70e4e1
--- /dev/null
+++ b/share/create-scripts/debconf.d/0001-preseed-file
@@ -0,0 +1,108 @@
+#!/bin/sh
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+set -e
+
+PROJECT="open-infrastructure"
+SOFTWARE="compute-tools"
+PROGRAM="container"
+
+CONFIG="/etc/${SOFTWARE}/debconf"
+
+DEBCONF_NOWARNINGS="true"
+export DEBCONF_NOWARNINGS
+
+. /usr/share/debconf/confmodule
+
+if [ -n "${PRESEED_FILE}" ]
+then
+	# user specified one or more preseed files through commandline option
+	db_set container/preseed-file "${PRESEED_FILE}"
+	db_fset container/preseed-file seen true
+elif [ -e "${CONFIG}/${NAME}.cfg" ]
+then
+	# user did not specify a pressed file, but there is a matching one
+	# available on the system matching the container name
+	db_set container/preseed-file "${CONFIG}/${NAME}.cfg"
+	db_fset container/preseed-file seen true
+elif [ "$(ls ${CONFIG}/*/${NAME}.cfg 2>/dev/null | wc -l)" -eq 1 ]
+then
+	# user did not specify a pressed file, but there is 1 (and only 1)
+	# matching in a sub-directory of /etc/${SOFTWARE}/debconf
+
+	FILE="$(ls ${CONFIG}/*/${NAME}.cfg)"
+
+	db_set container/preseed-file "${FILE}"
+	db_fset container/preseed-file seen true
+elif [ -e "${CONFIG}/default.cfg" ]
+then
+	# user did not specify a pressed file, but there is a default one
+	db_set container/preseed-file "${CONFIG}/default.cfg"
+	db_fset container/preseed-file seen true
+elif ls "${CONFIG}"/*.cfg > /dev/null 2>&1 || ls "${CONFIG}"/*/*.cfg > /dev/null 2>&1
+then
+	# user has not specified preseed files through commandline option,
+	# showing debconf selection dialog for global preseed file.
+
+	FILES="$(cd ${CONFIG} && find . -type f -name '*.cfg' -printf '%P\n' | LC_ALL=C sort)"
+	PRESEED_FILES="$(for FILE in ${FILES}; do echo -n "$(echo ${FILE} | sed -e 's|.cfg$||'), "; done | sed -e 's|, $||')"
+
+	if [ -n "${PRESEED_FILES}" ]
+	then
+		db_subst container/preseed-files CHOICES "none, custom, , ${PRESEED_FILES}"
+
+		db_settitle container/title
+		db_input high container/preseed-files || true
+		db_go
+
+		db_get container/preseed-files
+		PRESEED_FILE="${RET}" # select
+
+		case "${PRESEED_FILE}" in
+			none|custom)
+				;;
+
+			*)
+				# user specified preseed file through debconf select
+				db_set container/preseed-file "${CONFIG}/${PRESEED_FILE}.cfg"
+				db_fset container/preseed-file seen true
+				;;
+		esac
+	fi
+fi
+
+case "${PRESEED_FILE}" in
+	none)
+		;;
+
+	*)
+		# ask user for a preseed file
+		db_settitle container/title
+		db_input high container/preseed-file || true
+		db_go
+
+		db_get container/preseed-file
+		PRESEED_FILE="${RET}" # string (w/ empty)
+
+		echo "PRESEED_FILE=\"${PRESEED_FILE}\"" >> "${DEBCONF_TMPDIR}/debconf.default"
+		export PRESEED_FILE
+		;;
+esac
+
+db_stop