nativesdk/sdk: Update sdk dummy providers

When we migrated rpm v5 -> v4, we lost the ability to drop "per file"
dependencies from the rpm backend for things like "/bin/bash" and
"/usr/bin/env" which meant the sdks were becomming 'bloated'.

This restores the functionality using a dummy package, similarly to
the way the buildtools perl issue was addressed. It also removes
the non-functional old code so as not to confuse people in future.

I ran into this problem trying to filter dependencies to only rpms
a build directly depends upon and it turns out we have some determinism issues
in this area so this is something key to fix.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/meta/recipes-core/meta/dummy-sdk-package.inc b/meta/recipes-core/meta/dummy-sdk-package.inc
new file mode 100644
index 0000000000..ed83dd77da
--- /dev/null
+++ b/meta/recipes-core/meta/dummy-sdk-package.inc
@@ -0,0 +1,24 @@
+SUMMARY = "Dummy packages which handle excluding packages from the sdk, e.g. ensuring perl is excluded from buildtools"
+LICENSE = "MIT"
+
+inherit allarch
+
+python() {
+    # Put the package somewhere separate to ensure it's never used except
+    # when we want it
+    # (note that we have to do this in anonymous python here to avoid
+    # allarch.bbclass disabling itself)
+    d.setVar('PACKAGE_ARCH', '${DUMMYARCH}')
+}
+
+ALLOW_EMPTY_${PN} = "1"
+
+PR[vardeps] += "DUMMYPROVIDES"
+
+python populate_packages_prepend() {
+    p = d.getVar("PN")
+    d.appendVar("RPROVIDES_%s" % p, "${DUMMYPROVIDES}")
+    #d.appendVar("RCONFLICTS_%s" % p, "${DUMMYPROVIDES}")
+    #d.appendVar("RREPLACES_%s" % p, "${DUMMYPROVIDES}")
+}
+