xbps-src: new targets: update-bulk and update-sys.

* update-bulk:
	This rebuilds all pkgs in system repositories that are outdated.
	with this xbps-bulk is now considered fully obsolete.

* update-sys:
	This rebuilds all pkgs in system that are oudated and once built,
	updates them via xbps-install(8).

	This target defines a new configuration option "XBPS_SUCMD" that
	is the command to execute to update the system. By default set to
	"sudo sh -c".

CAVEATS
	- need to check if binpkg is in local repo.
	- need to add support to specify alternative rootdir.
	- need to add support to specify system repos.

common/xbps-src/shutils/bulk.sh

@@ -0,0 +1,78 @@
+# vim: set ts=4 sw=4 et:
+
+bulk_getlink() {
+    local p="$(basename $1)"
+    local target="$(readlink $XBPS_SRCPKGDIR/$p)"
+
+    if [ $? -eq 0 -a -n "$target" ]; then
+        p=$target
+    fi
+    echo $p
+}
+
+bulk_build() {
+    local args="$1" pkg= pkgs= _pkgs= _realdep= _deps= found= x= result=
+
+    if ! command -v xbps-checkvers &>/dev/null; then
+        msg_error "xbps-src: cannot find xbps-checkvers(8) command!\n"
+    fi
+    _pkgs=$(xbps-checkvers ${args} -d $XBPS_DISTDIR | awk '{print $2}')
+    # Only add to the list real pkgs, not subpkgs.
+    for pkg in ${_pkgs}; do
+        _realdep=$(bulk_getlink $pkg)
+        unset found
+        for x in ${pkgs}; do
+            if [ "$x" = "${_realdep}" ]; then
+                found=1
+                break
+            fi
+        done
+        if [ -z "$found" ]; then
+            pkgs="$pkgs ${_realdep}"
+        fi
+    done
+    for pkg in ${pkgs}; do
+        unset found
+        setup_pkg $pkg $XBPS_CROSS_BUILD
+        _deps="$(show_pkg_build_deps | sed -e 's|[<>].*\$||g')"
+        _realdep=$(bulk_getlink $pkg)
+        for x in ${_deps}; do
+            if [ "${_realdep}" = "${pkg}" ]; then
+                found=1
+                break
+            fi
+        done
+        [ -n $found ] && result="${_realdep} ${result}"
+    done
+    [ -n "$result" ] && echo "$result"
+}
+
+bulk_update() {
+    local args="$1" pkgs=
+
+    pkgs="$(bulk_build ${args})"
+    msg_normal "xbps-src: the following packages must be rebuilt and updated:\n"
+    for f in ${pkgs}; do
+        echo "   $f"
+    done
+    echo
+    for f in ${pkgs}; do
+        BEGIN_INSTALL=1
+        XBPS_TARGET_PKG="$f"
+        read_pkg
+        msg_normal "xbps-src: building ${pkgver} ...\n"
+        if [ -n "$CHROOT_READY" -a -z "$IN_CHROOT" ]; then
+            chroot_handler pkg $XBPS_TARGET_PKG
+        else
+            install_pkg pkg $XBPS_CROSS_BUILD
+        fi
+        if [ $? -ne 0 ]; then
+            msg_error "xbps-src: failed to build $pkgver pkg!\n"
+        fi
+    done
+    if [ -n "$pkgs" -a -n "$args" ]; then
+        echo
+        msg_normal "xbps-src: updating your system, confirm to proceed...\n"
+        ${XBPS_SUCMD} "xbps-install --repository=$XBPS_REPOSITORY --repository=$XBPS_REPOSITORY/nonfree -u ${pkgs}"
+    fi
+}