insane.bbclass: add QA check: file-rdeps

index 3dd2e7f..f2e9626 100644
@@ -29,7 +29,7 @@ QA_SANE = "True"
 WARN_QA ?= "ldflags useless-rpaths rpaths staticdev libdir xorg-driver-abi \
             textrel already-stripped incompatible-license files-invalid \
             installed-vs-shipped compile-host-path install-host-path \
-            pn-overrides infodir build-deps \
+            pn-overrides infodir build-deps file-rdeps \
             "
 ERROR_QA ?= "dev-so debug-deps dev-deps debug-files arch pkgconfig la \
             perms dep-cmp pkgvarcheck perm-config perm-line perm-link \

@@ -797,6 +797,41 @@ def package_qa_check_rdepends(pkg, pkgdest, skip, taskdeps, packages, d):
                 error_msg = "%s rdepends on %s, but it isn't a build dependency?" % (pkg, rdepend)
                 sane = package_qa_handle_error("build-deps", error_msg, d)
 
+        if "file-rdeps" not in skip:
+            ignored_file_rdeps = set(['/bin/sh', '/usr/bin/env'])
+            # For Saving the FILERDEPENDS
+            filerdepends = set()
+            rdep_data = oe.packagedata.read_subpkgdata(pkg, d)
+            for key in rdep_data:
+                if key.startswith("FILERDEPENDS_"):
+                    for subkey in rdep_data[key].split():
+                        filerdepends.add(subkey)
+            filerdepends -= ignored_file_rdeps
+            if filerdepends:
+                # Check the rprovides of itself
+                if pkg not in rdepends:
+                    rdepends.insert(0, pkg)
+                for rdepend in rdepends:
+                    # For Saving the FILERPROVIDES and RPROVIDES
+                    rdep_rprovides = set()
+                    rdep_data = oe.packagedata.read_subpkgdata(rdepend, d)
+                    for key in rdep_data:
+                        if key.startswith("FILERPROVIDES_") or key.startswith("RPROVIDES_") \
+                                or key.startswith("FILERPROVIDESFLIST_"):
+                            for subkey in rdep_data[key].split():
+                                rdep_rprovides.add(subkey)
+                    filerdepends -= rdep_rprovides
+                    if not filerdepends:
+                            # Break if all the file rdepends are met.
+                            break
+                    else:
+                            # Clear it for the next loop
+                            rdep_rprovides.clear()
+            if filerdepends:
+                error_msg = "%s requires %s, but no providers in its RDEPENDS" % \
+                            (pkg, ', '.join(str(e) for e in filerdepends))
+                sane = package_qa_handle_error("file-rdeps", error_msg, d)
+
     return sane
 
 def package_qa_check_deps(pkg, pkgdest, skip, d):