[PATCHv2 1/4] debianize: only prepend changelog when our entry is not there

[Henning Schild <henning.schild@siemens.com>]

From: Henning Schild <henning.schild@siemens.com>

The default release and urgency might not fit everyone, make sure we do
not prepend if that very release is already in the changelog. That
allows anyone to choose what they want and prevent prepending.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
---
 meta/classes/debianize.bbclass | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/meta/classes/debianize.bbclass b/meta/classes/debianize.bbclass
index c231b41..33ab4f7 100644
--- a/meta/classes/debianize.bbclass
+++ b/meta/classes/debianize.bbclass
@@ -21,7 +21,15 @@ ${PN} (${CHANGELOG_V}) UNRELEASED; urgency=low
  -- ${MAINTAINER}  ${date}
 EOF
 	if [ -f ${WORKDIR}/changelog ]; then
-		echo >> ${S}/debian/changelog
+		if head -1 "${WORKDIR}"/changelog | \
+			grep -q -e "^${PN} (${CHANGELOG_V})"
+		then
+			# entry for our version already there, use unmodified
+			rm ${S}/debian/changelog
+		else
+			# prepend our entry to an existing changelog
+			echo >> ${S}/debian/changelog
+		fi
 		cat ${WORKDIR}/changelog >> ${S}/debian/changelog
 	fi
 }
-- 
2.23.0