gistfile1.txt

#!/bin/sh
# postinst script for Teams for Linux
# see: dh_installdeb(1)

register_package_repo() {

	# Register apt repository
	eval $(apt-config shell APT_SOURCE_PARTS Dir::Etc::sourceparts/d)
	TEAMS_PACKAGE_SOURCE=${APT_SOURCE_PARTS}teams.list

	REPO_PUBLIC_KEY_BLOCK="-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.7 (GNU/Linux)

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NdCFTW7wY0Fb1fWJ+/KTsC4=
=J6gs
-----END PGP PUBLIC KEY BLOCK-----"

	if [ ! -z "${REPO_PUBLIC_KEY_BLOCK}" ]; then
		eval $(apt-config shell APT_TRUSTED_PARTS Dir::Etc::trustedparts/d)
		TEAMS_REPO_KEY=${APT_TRUSTED_PARTS}microsoft.gpg

		if [ ! -f $TEAMS_REPO_KEY ]; then
			echo "${REPO_PUBLIC_KEY_BLOCK}" | gpg --dearmor > $TEAMS_REPO_KEY
		fi
	fi

	# Install repository source list
	WRITE_SOURCE=0
	if [ ! -f $TEAMS_PACKAGE_SOURCE ]; then
		# Write source list if it does not exist
		WRITE_SOURCE=1
	elif grep -q "# disabled on upgrade to" $TEAMS_PACKAGE_SOURCE; then
		# Write source list if it was disabled by OS upgrade
		WRITE_SOURCE=1
	fi
	if [ "$WRITE_SOURCE" -eq "1" ]; then
		echo "### THIS FILE IS AUTOMATICALLY CONFIGURED ###
# You may comment out this entry, but any other modifications may be lost.
deb [arch=amd64] https://packages.microsoft.com/repos/ms-teams stable main" > $TEAMS_PACKAGE_SOURCE
	fi
}

case "$1" in
    configure)
        register_package_repo
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
        echo "postinst called with unknown argument '$1'" >&2
        exit 1
    ;;
esac


exit 0