[Reproducible-builds] Bug#792982: ftpcopy: please make the build reproducible

[Maria Valentina Marin]

Source: ftpcopy
Version: 0.6.7-3
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-builds at lists.alioth.debian.org

Hi!

While working on the “reproducible builds” effort [1], we have noticed
that ftpcopy could not be built reproducibly.

The attached patch sets the mtimes of all files which are modified
during the built to the date of the last changelog entry in order to
produce files with reproducible metadata.

Cheers,
akira

[1]: https://wiki.debian.org/ReproducibleBuilds


-------------- next part --------------
diff -u ftpcopy-0.6.7/debian/changelog ftpcopy-0.6.7/debian/changelog
--- ftpcopy-0.6.7/debian/changelog
+++ ftpcopy-0.6.7/debian/changelog
@@ -1,3 +1,10 @@
+ftpcopy (0.6.7-3.1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix mtimes before building binary packages to produce reproducible output 
+
+ -- akira <marivalenm at gmail.com>  Sun, 19 Jul 2015 13:51:02 +0200
+
 ftpcopy (0.6.7-3) unstable; urgency=medium
 
   * debian/diff/disable--html-option.diff: the --html option is no
diff -u ftpcopy-0.6.7/debian/rules ftpcopy-0.6.7/debian/rules
--- ftpcopy-0.6.7/debian/rules
+++ ftpcopy-0.6.7/debian/rules
@@ -17,6 +17,8 @@
 
 DIR =$(shell pwd)/debian/ftpcopy
 
+BUILD_DATE := $(shell dpkg-parsechangelog --show-field Date)
+
 unpack: deb-checkdir unpack-stamp
 unpack-stamp:
 	rm -rf web
@@ -70,7 +72,9 @@
 
 binary-arch: deb-checkdir deb-checkuid install-arch ftpcopy.deb
 	test '$(DIET)' -ne 0 || dpkg-shlibdeps '$(DIR)'/usr/bin/*
-	dpkg-gencontrol -isp -pftpcopy -P'$(DIR)' 
+	dpkg-gencontrol -isp -pftpcopy -P'$(DIR)'
+	find '$(DIR)' -newermt '$(BUILD_DATE)' -print0 | \
+		xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
 	dpkg -b '$(DIR)' ..
 
 binary-indep: deb-checkdir deb-checkuid install-indep