[sagemath] 02/05: Basic version of deduplicating the docs, for a much smaller install size

[Ximin Luo]

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infinity0 pushed a commit to branch master
in repository sagemath.

commit 70378383dccdc421e8b75a4d41268af48e7a0d13
Author: Ximin Luo <infinity0 at debian.org>
Date:   Fri Aug 18 16:11:48 2017 +0200

    Basic version of deduplicating the docs, for a much smaller install size
---
 debian/changelog  | 1 +
 debian/control.in | 1 +
 debian/rules      | 9 ++++++++-
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/debian/changelog b/debian/changelog
index 0f195e8..2a60d17 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,7 @@
 sagemath (8.0-4) UNRELEASED; urgency=medium
 
   * Relax the runtime dependencies.
+  * Deduplicate the documentation using rdfind(1).
 
  -- Ximin Luo <infinity0 at debian.org>  Thu, 17 Aug 2017 12:08:03 +0200
 
diff --git a/debian/control.in b/debian/control.in
index 40426fd..59f3e53 100644
--- a/debian/control.in
+++ b/debian/control.in
@@ -75,6 +75,7 @@ Build-Depends:
  python-dev,
  python3-dev,
  r-base-dev,
+ rdfind,
  scons,
  texlive-latex-base,
  zlib1g-dev,
diff --git a/debian/rules b/debian/rules
index 31a65e3..b8a21d1 100755
--- a/debian/rules
+++ b/debian/rules
@@ -35,6 +35,7 @@ LANGS = $(shell cd sage/src/doc && find . -mindepth 1 -maxdepth 1 -type d | grep
 DOCS_INSTALL = $(LANGS:%=debian/sagemath-doc-%.install)
 DOCS_CONTROL = $(LANGS:%=debian/sagemath-doc-%.control)
 DOCS_DOC_BASE = $(LANGS:%=debian/sagemath-doc-%.doc-base)
+DOCS_INSTALL_DIRS = $(LANGS:%=debian/sagemath-doc-%)
 
 ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
 NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
@@ -179,9 +180,15 @@ else
 	dh_auto_clean -Dsage -- maintainer-clean
 endif
 
-override_dh_install: $(DOCS_INSTALL) $(DOCS_DOC_BASE)
+override_dh_install-indep: $(DOCS_INSTALL) $(DOCS_DOC_BASE)
 	dh_install --package sagemath-common -X.so
 	dh_install --remaining-packages --list-missing
+# Basic version of deduplicating the docs, for a much smaller install size.
+# Upstream bug report is at https://trac.sagemath.org/ticket/22088
+# Hard links do work in Debian packages, but only within packages.
+	set -e; for d in $(DOCS_INSTALL_DIRS); do \
+		rdfind -outputname /dev/null -makehardlinks true "$$d"; \
+	done
 
 override_dh_python2-arch:
 	dh_python2

-- 
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