[PATCH 3/3] deb_add_changelog: use SOURCE_DATE_EPOCH

[Felix Moessbauer <felix.moessbauer@siemens.com>]

In case the SOURCE_DATE_EPOCH bb variable is set, use that value
both for the auto-generated changelog as well as when appending to
an existing changelog.

Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
---
 meta/classes/debianize.bbclass | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/meta/classes/debianize.bbclass b/meta/classes/debianize.bbclass
index 3531421..49ae0dd 100644
--- a/meta/classes/debianize.bbclass
+++ b/meta/classes/debianize.bbclass
@@ -14,7 +14,7 @@ MAINTAINER ??= "Unknown maintainer <unknown@example.com>"
 
 deb_add_changelog() {
 	changelog_v="${CHANGELOG_V}"
-	timestamp=3600
+	timestamp=${@ d.getVar('SOURCE_DATE_EPOCH', True) or '3600' }
 	# we have a changelog and that is not autogenerated
 	# (when autogenerated, changelog.orig is empty)
 	if [ -f ${S}/debian/changelog ] && [ -s ${WORKDIR}/changelog.orig ]; then
@@ -23,9 +23,11 @@ deb_add_changelog() {
 		fi
 		orig_version=$(dpkg-parsechangelog -l ${WORKDIR}/changelog.orig -S Version)
 		changelog_v=$(echo "${changelog_v}" | sed 's/<orig-version>/'${orig_version}'/')
-		orig_date=$(dpkg-parsechangelog -l ${WORKDIR}/changelog.orig -S Date)
-		orig_seconds=$(date --date="${orig_date}" +'%s')
-		timestamp=$(expr ${orig_seconds} + 42)
+		if [ -z "${SOURCE_DATE_EPOCH}" ]; then
+			orig_date=$(dpkg-parsechangelog -l ${WORKDIR}/changelog.orig -S Date)
+			orig_seconds=$(date --date="${orig_date}" +'%s')
+			timestamp=$(expr ${orig_seconds} + 42)
+		fi
 	fi
 
 	date=$(LANG=C date -R -d @${timestamp})
@@ -42,7 +44,6 @@ EOF
 	# prepend our entry to the original changelog
 	echo >> ${S}/debian/changelog
 	cat ${WORKDIR}/changelog.orig >> ${S}/debian/changelog
-	fi
 
 	if [ -f ${WORKDIR}/changelog ]; then
 		latest_version=$(dpkg-parsechangelog -l ${WORKDIR}/changelog -S Version)
-- 
2.34.1