Add debian/patches/0001-reproductible-build.patch: Try to make the documentation reproductible

debian/changelog

@@ -39,8 +39,10 @@ nut (2.7.4-9) UNRELEASED; urgency=medium
   * Remove obsolete files and old upgrade paths for users coming from version
     prior to wheezy
   * debian/control: Mark -dev packages as Multi-Arch: same
+  * Add debian/patches/0001-reproductible-build.patch: Try to make the
+    documentation reproductible
 
- -- Laurent Bigonville <bigon@debian.org>  Sat, 27 Jul 2019 22:32:07 +0200
+ -- Laurent Bigonville <bigon@debian.org>  Sun, 28 Jul 2019 00:02:13 +0200
 
 nut (2.7.4-8) unstable; urgency=medium
 

debian/patches/0001-reproductible-build.patch

@@ -0,0 +1,17 @@
+Description: Make the documentation reproductible
+Author: Laurent Bigonville <bigon@debian.org>
+Last-Update: 2019-07-28
+
+--- a/docs/Makefile.am
++++ b/docs/Makefile.am
+@@ -92,8 +92,8 @@ packager-guide.html packager-guide.chunk
+ #   $ ASCIIDOC_VERBOSE=-v make
+ A2X_COMMON_OPTS = $(ASCIIDOC_VERBOSE) --attribute icons \
+     --xsltproc-opts "--nonet" \
+-    --xsltproc-opts "--stringparam nut.localdate \"`TZ=UTC date +%Y-%m-%d`\"" \
+-    --xsltproc-opts "--stringparam nut.localtime \"`TZ=UTC date +%H:%M:%S`\"" \
++    --xsltproc-opts "--stringparam nut.localdate \"`TZ=UTC date +%Y-%m-%d -d @$(SOURCE_DATE_EPOCH)`\"" \
++    --xsltproc-opts "--stringparam nut.localtime \"`TZ=UTC date +%H:%M:%S -d @$(SOURCE_DATE_EPOCH)`\"" \
+     --xsltproc-opts "--stringparam nut.nutversion \"@PACKAGE_VERSION@\"" \
+     --attribute iconsdir=$(srcdir)/images \
+     --attribute=badges \

debian/patches/series

@@ -1,3 +1,4 @@
+0001-reproductible-build.patch
 0003-install-dev-files-in-usr.patch
 0002-nut-monitor-paths.patch
 0004-fix-systemd-service.patch