modify setup to not do DB, cannot be fully done anyway

debian/control

@@ -65,7 +65,7 @@ Section: libdevel
 Architecture: any
 Depends:
  libtalerexchange (= ${binary:Version}),
- libgnunet-dev (>=1:0.14.0),
+ libgnunet-dev (>=0.14.0),
  libgcrypt20-dev (>=1.6),
  libmicrohttpd-dev (>=0.9.33),
  ${misc:Depends}

debian/db/install/pgsql

@@ -1,2 +0,0 @@
-#!/bin/sh
-taler-exchange-dbinit -c /etc/taler.conf

debian/db/upgrade/pgsql

@@ -1,2 +0,0 @@
-#!/bin/sh
-taler-exchange-dbinit -c /etc/taler.conf

debian/etc/taler-exchange-db.conf

@@ -1,3 +0,0 @@
-[taler-exchangdb-postgres]
-
-CONFIG = postgres:///taler-exchange

debian/etc/taler-exchange.conf

@@ -1,5 +1,3 @@
-@INLINE@ /etc/taler-exchange-db.conf
-
 [PATHS]
 
 # Move runtime data "tmp" directory to /var/lib/taler-exchange/

debian/etc/taler-wire.conf

@@ -1 +0,0 @@
-@INLINE@ /etc/taler-exchange-db.conf

debian/taler-exchange.README.Debian

@@ -1,12 +1,22 @@
 taler-exchange
 --------------
 
-Note that the configuration installed in /etc/taler.conf is incomplete and
-that Debian cannot launch an exchange with this minimal template. You must
-setup the currency, denominations and bank account access details before
-launching the Taler exchange can possibly succeed.
+Note that the configuration is incomplete, and that Debian cannot launch an
+exchange with this minimal template. You must:
 
-In order to start, stop or restart manually the server, use:
+* Configure the Postgres database for the exchange, ideally including
+  remote replication of the database to the auditor.
+* Run taler-exchange-dbinit (also after package upgrades).
+* Edit /etc/taler-exchange.conf to must setup the currency and denominations
+  details.
+* Edit /etc/taler-wire.conf to provide details about the bank account access.
+
+None of these are done by the Debian package because we cannot provide the
+required complete configuration details.
+
+
+Once you have done this, you can use the following commands to start, stop or
+restart the Taler exchange:
 
   # systemctl start taler-exchange
   # systemctl stop taler-exchange
@@ -16,7 +26,5 @@ To permanently the exchange whenever the system boots, use:
 
   # systemctl enable taler-exchange
 
-None of these are done by the Debian package because we cannot provide the
-required complete configuration details.
 
  -- Christian Grothoff <grothoff@gnu.org>  Mon 28 Dec 2020 11:37:14 AM CET

debian/taler-exchange.config

@@ -22,10 +22,4 @@ db_go
 db_input low taler-exchange/groupname || true
 db_go
 
-if [ -f /usr/share/dbconfig-common/dpkg/config.pgsql ]; then
-    . /usr/share/dbconfig-common/dpkg/config.pgsql
-    dbc_go taler-exchange "$@"
-fi
-
-
 db_stop

debian/taler-exchange.install

@@ -1,6 +1,4 @@
 usr/bin/
 usr/lib/*/taler/*.so
 debian/etc/* etc/
-debian/db/install/* usr/share/dbconfig-common/scripts/taler-exchange/install/
-debian/db/upgrade/* usr/share/dbconfig-common/scripts/taler-exchange/upgrade/
 debian/conf/* etc/taler-exchange/

debian/taler-exchange.postinst

@@ -55,13 +55,19 @@ case "${1}" in
 		CONFIG_FILE="/etc/default/taler-exchange"
 		TALER_HOME="/var/lib/taler-exchange"
 
-		# Creating taler group if needed
+		# Creating taler groups as needed
 		if ! getent group ${_GROUPNAME} > /dev/null
 		then
 			echo -n "Creating new Taler group ${_GROUPNAME}:"
 			addgroup --quiet --system ${_GROUPNAME}
 			echo " done."
 		fi
+		if ! getent group ${_DBGROUPNAME} > /dev/null
+		then
+			echo -n "Creating new Taler group ${_DBGROUPNAME}:"
+			addgroup --quiet --system ${_DBGROUPNAME}
+			echo " done."
+		fi
 
 		# Creating taler users if needed
 		if ! getent passwd ${_EUSERNAME} > /dev/null
@@ -87,14 +93,14 @@ case "${1}" in
 		then
 			echo -n "Creating new Taler user ${_WIREUSERNAME}:"
 			adduser --quiet --system --home ${TALER_HOME}/wire ${_WIREUSERNAME}
-            adduser ${_WIREUSERNAME} ${_DBGROUPNAME}
+            adduser --quiet ${_WIREUSERNAME} ${_DBGROUPNAME}
 			echo " done."
 		fi
 		if ! getent passwd ${_AGGRUSERNAME} > /dev/null
 		then
 			echo -n "Creating new Taler user ${_AGGRUSERNAME}:"
 			adduser --quiet --system --home ${TALER_HOME}/aggregator ${_AGGRUSERNAME}
-            adduser ${_AGGRUSERNAME} ${_DBGROUPNAME}
+            adduser --quiet ${_AGGRUSERNAME} ${_DBGROUPNAME}
 			echo " done."
 		fi
 
@@ -194,58 +200,26 @@ Restart=on-failure
 ExecStart=/usr/bin/taler-exchange-aggregator -c /etc/taler.conf
 EOF
 
-        systemctl daemon-reload
-
 		cp -f "${CONFIG_NEW}" "${CONFIG_FILE}"
+		rm -f "${CONFIG_NEW}"
 		echo " done."
 
+        echo -n "Setting up system services "
+
         mkdir -p /var/lib/taler-exchange/tmp
-        chown root:taler /var/lib/taler-exchange/tmp
+        chown root:${_GROUPNAME} /var/lib/taler-exchange/tmp
         chmod 770 /var/lib/taler-exchange/tmp
         chmod +s /var/lib/taler-exchange/tmp
 
-        # Setup postgres database (needs dbconfig-pgsql package)
-        if [ -f /usr/share/dbconfig-common/dpkg/postinst.pgsql ]; then
-            . /usr/share/dbconfig-common/dpkg/postinst.pgsql
-            # dbc_dbfile_* should not apply for Postgres, but better be safe...
-            dbc_dbfile_owner="${_EUSERNAME}:${_DBGROUPNAME}"
-            dbc_dbfile_perms="0660"
-            dbc_pgsql_createdb_encoding="UTF8"
-            dbc_go taler-exchange "$@"
-        fi
-        # get database settings from dbconfig-common
-        if [ -f /etc/dbconfig-common/taler-exchange.conf ]; then
-            . /etc/dbconfig-common/taler-exchange.conf
-            case "$dbc_dbtype" in
-                pgsql)
-                    taler-config -c /etc/taler-exchange-db.conf \
-                                 -s "exchangedb-postgres" \
-                                 -o "CONFIG" \
-                                 -V "postgres://$dbc_dbuser:$dbc_dbpass@$dbc_dbserver/$dbc_dbname"
-                    taler-config -c /etc/taler-exchange-db.conf \
-                                 -s "exchange" \
-                                 -o "DB" \
-                                 -V "postgres"
-                    chown ${_EUSERNAME}:${_DBGROUPNAME} /etc/taler-exchange-db.conf
-                    chmod 440 /etc/taler-exchange-db.conf
-                ;;
-                "")
-                ;;
-                *)
-                    echo "Unsupported database type $dbc_type."
-                    exit 1
-                    ;;
-            esac
-        fi
+        systemctl daemon-reload
+
+        echo "done."
 
 		# Cleaning
-		rm -f "${CONFIG_NEW}"
 		echo "All done."
-
 		;;
 
 	abort-upgrade|abort-remove|abort-deconfigure)
-
 		;;
 
 	*)

debian/taler-exchange.postrm

@@ -29,61 +29,47 @@ nginx_remove() {
     fi
 }
 
-if [ -f /usr/share/dbconfig-common/dpkg/postrm.pgsql ]; then
-    . /usr/share/dbconfig-common/dpkg/postrm.pgsql
-    dbc_go taler-exchange "$@"
+if [ -f /usr/share/debconf/confmodule ];
+then
+    . /usr/share/debconf/confmodule
 fi
 
-
 if [ "$1" = "remove" ] || [ "$1" = "purge" ]; then
-	if [ -f /usr/share/debconf/confmodule ]; then
-		db_version 2.0
-		db_get taler-exchange/reconfigure-webserver
-		webservers="$RET"
-		for webserver in $webservers; do
-			webserver=${webserver%,}
-			if [ "$webserver" = "nginx" ] ; then
-				nginx_remove
-			else
-				apache_remove
-			fi
-		done
-	fi
+	db_version 2.0
+	db_get taler-exchange/reconfigure-webserver
+	webservers="$RET"
+	for webserver in $webservers; do
+		webserver=${webserver%,}
+		if [ "$webserver" = "nginx" ] ; then
+			nginx_remove
+		else
+			apache_remove
+		fi
+	done
 fi
 
 
 case "${1}" in
 	purge)
-		if [ -e /usr/share/debconf/confmodule ]
-		then
-			. /usr/share/debconf/confmodule
-			db_version 2.0
+		db_version 2.0
 
-			db_get taler-exchange/eusername
-			_EUSERNAME="${RET:-taler-exchange-httpd}"
+		db_get taler-exchange/eusername
+		_EUSERNAME="${RET:-taler-exchange-httpd}"
 
-			db_get taler-exchange/rsecusername
-			_RSECUSERNAME="${RET:-taler-exchange-helper-rsa}"
+		db_get taler-exchange/rsecusername
+		_RSECUSERNAME="${RET:-taler-exchange-helper-rsa}"
 
-			db_get taler-exchange/esecusername
-			_ESECUSERNAME="${RET:-taler-exchange-helper-eddsa}"
+		db_get taler-exchange/esecusername
+		_ESECUSERNAME="${RET:-taler-exchange-helper-eddsa}"
 
-			db_get taler-exchange/wireusername
-			_WIREUSERNAME="${RET:-taler-exchange-wire}"
+		db_get taler-exchange/wireusername
+		_WIREUSERNAME="${RET:-taler-exchange-wire}"
 
-			db_get taler-exchange/aggrusername
-			_AGGRUSERNAME="${RET:-taler-exchange-aggregator}"
+		db_get taler-exchange/aggrusername
+		_AGGRUSERNAME="${RET:-taler-exchange-aggregator}"
 
-			db_get taler-exchange/groupname
-			_GROUPNAME="${RET:-taler-private}"
-		else
-			_EUSERNAME="taler-exchange-httpd"
-			_RSECUSERNAME="taler-exchange-helper-rsa"
-			_ESECUSERNAME="taler-exchange-helper-eddsa"
-			_WIREUSERNAME="taler-exchange-wire"
-			_AGGRUSERNAME="taler-exchange-aggregator"
-			_GROUPNAME="taler-private"
-		fi
+		db_get taler-exchange/groupname
+		_GROUPNAME="${RET:-taler-private}"
 
 		if pathfind deluser
 		then

debian/taler-exchange.prerm

@@ -8,10 +8,5 @@ if [ -f /usr/share/debconf/confmodule ]; then
 fi
 . /usr/share/dbconfig-common/dpkg/prerm
 
-if [ -f /usr/share/dbconfig-common/dpkg/prerm.pgsql ]; then
-    . /usr/share/dbconfig-common/dpkg/prerm.pgsql
-    dbc_go taler-exchange "$@"
-fi
-
 db_stop
 exit 0