[maven-debian-helper] 02/05: Export the DEB_CHANGELOG_DATETIME variable with the date of the latest entry in debian/changelog

[Emmanuel Bourg]

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ebourg-guest pushed a commit to branch master
in repository maven-debian-helper.

commit 868f0f50e497aca4a2cf2196b5548a319e4571ae
Author: Emmanuel Bourg <ebourg at apache.org>
Date:   Tue May 5 09:48:57 2015 +0200

    Export the DEB_CHANGELOG_DATETIME variable with the date of the latest entry in debian/changelog
---
 debian/changelog            | 2 ++
 share/cdbs/1/class/maven.mk | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/debian/changelog b/debian/changelog
index 70df75e..1b73aaf 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,8 @@
 maven-debian-helper (1.6.11) UNRELEASED; urgency=medium
 
   * Removed the timestamp from the javadoc files to make the builds reproducible
+  * Export the DEB_CHANGELOG_DATETIME variable with the date of the latest entry
+    in debian/changelog
 
  -- Emmanuel Bourg <ebourg at apache.org>  Mon, 04 May 2015 17:39:56 +0200
 
diff --git a/share/cdbs/1/class/maven.mk b/share/cdbs/1/class/maven.mk
index baa9f29..08582a1 100644
--- a/share/cdbs/1/class/maven.mk
+++ b/share/cdbs/1/class/maven.mk
@@ -36,6 +36,12 @@ DEB_MAVEN_REPO := $(CURDIR)/debian/maven-repo
 JAVA_OPTS = \
   $(shell test -n "$(DEB_MAVEN_PROPERTYFILE)" && echo -Dproperties.file.manual=$(DEB_MAVEN_PROPERTYFILE))
 
+# Export the date of the latest entry in debian/changelog (used by maven-archiver to make reproducible builds)
+ifneq ("$(wildcard debian/changelog)","")
+    export DEB_CHANGELOG_DATETIME=$(shell dpkg-parsechangelog --show-field Date)
+    export DEB_CHANGELOG_TIMESTAMP=$(shell date '--date=$(DEB_CHANGELOG_DATETIME)' +%s)
+endif
+
 DEB_PHONY_RULES += maven-sanity-check before-mvn-build mvn-build after-mvn-build patch-poms unpatch-poms
 
 cdbs_use_maven_substvars := $(shell grep -q "{maven:\w*Depends}" debian/control && echo yes)

-- 
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