initial import

postfix/postfix.install

@@ -0,0 +1,44 @@
+post_install() {
+	if ! getent group postdrop &>/dev/null; then
+		groupadd -g 75 postdrop >/dev/null
+	fi
+	if ! getent group postfix &>/dev/null; then
+		groupadd -g 73 postfix >/dev/null
+	fi
+	if ! getent passwd postfix &>/dev/null; then
+		useradd -u 73 -d /var/spool/postfix -g postfix -G adm -s /bin/nologin postfix >/dev/null
+	fi
+	if ! groups postfix | grep adm &>/dev/null; then
+		gpasswd -a postfix adm >/dev/null
+	fi
+	postfix_shell=$(getent passwd postfix | cut -d: -f7)
+	if [ "$postfix_shell" != '/bin/nologin' ]; then
+		chsh -s /bin/nologin postfix &>/dev/null
+	fi
+	if [ ! -d /var/spool/postfix/public/pickup ]; then
+		mkfifo /var/spool/postfix/public/pickup
+	fi
+}
+
+post_upgrade() {
+	post_install
+	if [[ $(vercmp $2 3.0.0-3) -eq -1 ]]; then
+		echo '==> The postfix daemon binaries have moved.'
+		echo '==> Please restart postfix as soon as possible.'
+	elif [[ $(vercmp $2 3.0.1-1) -eq -1 ]]; then
+		echo '==> Several Postfix-internal protocols have changed.'
+		echo '==> Please restart postfix as soon as possible.'
+	fi
+}
+
+post_remove() {
+	if getent passwd postfix &>/dev/null; then
+		userdel postfix >/dev/null
+	fi
+	if getent group postfix &>/dev/null; then
+		groupdel postfix >/dev/null
+	fi
+	if getent group postdrop &>/dev/null; then
+		groupdel postdrop >/dev/null
+	fi
+}