Check non-ASCII characters on recipe metadata

index 9c05c86..d560eed 100644
@@ -11,6 +11,7 @@
 #  -Check if packages contains .debug directories or .so files
 #   where they should be in -dev or -dbg
 #  -Check if config.log contains traces to broken autoconf tests
+#  -Check non-ascii characters on some package metadata
 #  -Ensure that binaries in base_[bindir|sbindir|libdir] do not link
 #   into exec_prefix
 #  -Check that scripts in base_[bindir|sbindir|libdir] do not reference

@@ -36,7 +37,7 @@ WARN_QA ?= "ldflags useless-rpaths rpaths staticdev libdir xorg-driver-abi \
 ERROR_QA ?= "dev-so debug-deps dev-deps debug-files arch pkgconfig la \
             perms dep-cmp pkgvarcheck perm-config perm-line perm-link \
             split-strip packages-list pkgv-undefined var-undefined \
-            version-going-backwards expanded-d \
+            version-going-backwards expanded-d non-ascii \
             "
 
 ALL_QA = "${WARN_QA} ${ERROR_QA}"

@@ -947,6 +948,24 @@ def package_qa_check_expanded_d(path,name,d,elf,messages):
                         sane = False
     return sane
 
+def package_qa_check_ascii_encoding(keys, d):
+    def check_ascii_encoding(key):
+        sane = True
+        value = d.getVar(key, True)
+        if value:
+            try:
+                s = unicode(value)
+            except UnicodeDecodeError as e:
+                error_msg = "%s has non-ASCII characters" % key
+                sane = False
+                package_qa_handle_error("non-ascii", error_msg, d)
+        return sane
+
+    for key in keys:
+        sane = check_ascii_encoding(key)
+        if not sane:
+            break
+
 # The PACKAGE FUNC to scan each package
 python do_package_qa () {
     import subprocess

@@ -956,6 +975,9 @@ python do_package_qa () {
 
     bb.build.exec_func("read_subpackage_metadata", d)
 
+    # Check non-ascii characters on recipe's metadata
+    package_qa_check_ascii_encoding(['DESCRIPTION', 'SUMMARY', 'LICENSE', 'SECTION'], d)
+
     logdir = d.getVar('T', True)
     pkg = d.getVar('PN', True)
 

index 9e1ed28..374adb6 100644
@@ -171,6 +171,10 @@ python do_package_deb () {
             bb.utils.unlockfile(lf)
             ctrlfile.close()
             raise bb.build.FuncFailed("Missing field for deb generation: %s" % value)
+        except UnicodeDecodeError:
+            bb.utils.unlockfile(lf)
+            ctrlfile.close()
+            raise bb.build.FuncFailed("Non-ASCII characters found in one of the fields")
         # more fields
 
         custom_fields_chunk = get_package_additional_metadata("deb", localdata)