Reproducibly generate PDF documentation from TeX sources.

debian/changelog

@@ -10,6 +10,7 @@ dvdisaster (0.79.5-4) UNRELEASED; urgency=medium
   * Use alternative way of installing icons to remove dependency on
     dh-exec.
   * Drop redundant dependency on dpkg-dev.
+  * Reproducibly generate PDF documentation from TeX sources.
 
  -- Carlos Maddela <e7appew@gmail.com>  Mon, 14 Aug 2017 23:04:38 +1000
 

debian/control

@@ -12,9 +12,9 @@ Build-Depends: debhelper (>= 10),
                libgtk2.0-dev,
                libpng-dev,
                pkg-config
-# Build-Depends-Indep: texlive-fonts-recommended,
-#                      texlive-latex-base,
-#                      texlive-latex-extra
+Build-Depends-Indep: texlive-fonts-recommended,
+                     texlive-latex-base,
+                     texlive-latex-extra
 Standards-Version: 4.0.1
 Vcs-Browser: https://anonscm.debian.org/git/pkg-opt-media/dvdisaster.git
 Vcs-Git: https://anonscm.debian.org/git/pkg-opt-media/dvdisaster.git

debian/patches/28-pdftex-reproducibility.patch

@@ -1,26 +1,29 @@
 From: Carlos Maddela <e7appew@gmail.com>
 Date: Thu, 5 Jan 2017 19:14:35 +1100
-Subject: Generate the same PDF document IDs for build reproducibility.
+Subject: Apply pdftex workarounds for build reproducibility.
 
-Description: Generate the same PDF IDs for build reproducibility.
+Description: Apply pdftex workarounds for build reproducibility.
+ * Generate the same PDF IDs.
+ * Suppress additional metadata for included images.
 Author: Carlos Maddela <e7appew@gmail.com>
 Forwarded: not-needed
-Last-Update: 2016-12-21
+Last-Update: 2017-08-15
 ---
 This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
 ---
- documentation/user-manual/manual.tex | 1 +
- 1 file changed, 1 insertion(+)
+ documentation/user-manual/manual.tex | 2 ++
+ 1 file changed, 2 insertions(+)
 
 diff --git a/documentation/user-manual/manual.tex b/documentation/user-manual/manual.tex
-index 60fb51e..aaab4fa 100644
+index 60fb51e..bf4364d 100644
 --- a/documentation/user-manual/manual.tex
 +++ b/documentation/user-manual/manual.tex
-@@ -65,6 +65,7 @@
+@@ -65,6 +65,8 @@
  \fancyfoot{}
  \fancyfoot[LE,RO]{page \thepage\ of \pageref{LastPage}}
  
 +\pdftrailerid{dvdisaster}
++\pdfsuppressptexinfo=-1
  \begin{document}
  
  \definecolor{lightorange}{RGB}{255,224,150}

debian/patches/series

@@ -19,7 +19,7 @@
 25-fix-man-pages.patch
 26-fix-display-of-manual.pdf.patch
 27-allow-opening-in-browser-again.patch
-28-fudge-pdf-doc-ids.patch
+28-pdftex-reproducibility.patch
 29-fix-more-typos.patch
 30-hurd-kfreebsd-ftbfs.patch
 31-improve-hurd-and-kfreebsd-support.patch

debian/rules

@@ -11,7 +11,8 @@ export DEB_VERSION
 export FORCE_SOURCE_DATE = 1
 
 MUTABLE_FILES := build.h $(wildcard locale/*.po) \
-	documentation/config/version.tex
+	documentation/config/version.tex \
+	documentation/user-manual/manual.pdf
 
 BUILDROOT := $(CURDIR)/debian/tmp
 ICONS := $(wildcard contrib/dvdisaster*.png)
@@ -41,17 +42,8 @@ override_dh_clean:
 override_dh_auto_build-arch:
 	make all
 
-# For the time being, we'll just package the upstream-generated
-# manual.pdf, since we can't build the PDF reproducibly ourselves.
-# The reason we can't is most probably due to the fact that the
-# LaTeX document embeds other PDF documents and PNG images.
-# Although we are able to reproduce the PDF's creation and mod
-# dates, as well as its PDF IDs, the stream elements representing
-# the embedded images are always what seem to differ each time we
-# try to generate the PDF.
 override_dh_auto_build-indep:
-	# make manual
-	true
+	make manual
 
 override_dh_auto_install-arch:
 	dh_auto_install -a -- BUILDROOT=$(BUILDROOT)
@@ -66,9 +58,8 @@ override_dh_auto_install-indep:
 	true
 
 # Ensure that none of the text files that the application
-# tries to display directly are not compressed, as it doesn't
+# tries to display directly are compressed, as it doesn't
 # automatically decompress text files.
-override_dh_compress:
+override_dh_compress-arch:
 	dh_compress -p dvdisaster \
 		-XCHANGELOG -XCREDITS -XREADME.MODIFYING -XTODO
-	dh_compress --remaining-packages