pkg: do not overwrite default config.xml anymore; fixes #145

Fixes spurious overwrite of a standard config, but also doesn't
update the standards anymore in a running installation.  Install
media is unaffected from this change.  Users that have had their
standard config overwritten need to rewrite the file accordingly:

    /usr/local/etc/config.xml

It also enables users to use their own sample configs on a running
installation from now on.  Might add a knob in the GUI to do e.g.
`use this config as the factory reset configuration'.  :)

While there, move the pkg-related Makefile glue into its own
file in the subdirectory for clarity.

Makefile

@@ -9,26 +9,14 @@ umount:
 	/sbin/umount -f "<above>:${.CURDIR}/src"
 
 install:
-	# hardcode package meta files to catch mishaps
-	@cp ${.CURDIR}/pkg/+PRE_DEINSTALL ${DESTDIR}
-	@cp ${.CURDIR}/pkg/+POST_INSTALL ${DESTDIR}
-	@cp ${.CURDIR}/pkg/+MANIFEST ${DESTDIR}
+	# invoke pkg(8) bootstraping
+	@make -C ${.CURDIR}/pkg install
 	# move all sources to their destination
 	@mkdir -p ${DESTDIR}/usr/local
 	@cp -r ${.CURDIR}/src/* ${DESTDIR}/usr/local
 	# disable warnings for production systems
 	@sed -i '' -e 's/E_STRICT/E_STRICT | E_WARNING/g' \
 	    ${DESTDIR}/usr/local/etc/rc.php_ini_setup
-	# bootstrap pkg(8) files that are not in sources
-	@mkdir -p ${DESTDIR}/usr/local/etc/pkg/repos
-	@cp ${.CURDIR}/pkg/OPNsense.conf ${DESTDIR}/usr/local/etc/pkg/repos
-	@echo /usr/local/etc/pkg/repos/OPNsense.conf
-	@cp ${.CURDIR}/pkg/pkg.conf ${DESTDIR}/usr/local/etc
-	@echo /usr/local/etc/pkg.conf
-	@mkdir -p ${DESTDIR}/usr/local/etc/pkg/fingerprints/OPNsense/trusted
-	@cp ${.CURDIR}/pkg/trusted/pkg.opnsense.org.20150402 \
-	    ${DESTDIR}/usr/local/etc/pkg/fingerprints/OPNsense/trusted
-	@echo /usr/local/etc/pkg/fingerprints/OPNsense/trusted/pkg.opnsense.org.20150402
 	# finally pretty-print a list of files present
 	@(cd ${.CURDIR}/src; find * -type f) | \
 	    xargs -n1 printf "/usr/local/%s\n"

pkg/Makefile

+all:
+
+install:
+	@cp ${.CURDIR}/+PRE_DEINSTALL ${DESTDIR}
+	@cp ${.CURDIR}/+POST_INSTALL ${DESTDIR}
+	@cp ${.CURDIR}/+MANIFEST ${DESTDIR}
+	@mkdir -p ${DESTDIR}/usr/local/etc/pkg/repos
+	@cp ${.CURDIR}/OPNsense.conf ${DESTDIR}/usr/local/etc/pkg/repos
+	@echo /usr/local/etc/pkg/repos/OPNsense.conf
+	@cp ${.CURDIR}/pkg.conf ${DESTDIR}/usr/local/etc
+	@echo /usr/local/etc/pkg.conf
+	@cp ${.CURDIR}/config.xml.sample ${DESTDIR}/usr/local/etc
+	@echo "@sample /usr/local/etc/config.xml.sample"
+	@mkdir -p ${DESTDIR}/usr/local/etc/pkg/fingerprints/OPNsense/trusted
+	@cp ${.CURDIR}/trusted/pkg.opnsense.org.20150402 \
+	    ${DESTDIR}/usr/local/etc/pkg/fingerprints/OPNsense/trusted
+	@echo /usr/local/etc/pkg/fingerprints/OPNsense/trusted/pkg.opnsense.org.20150402
+
+.PHONY: install