Package: libopenni2-0
Version: 2.2.0.33+dfsg-15
Tags: patch moreinfo
User: [email protected]
Usertags: dep17p7

Hi Jochen,

I set out to add dh-sequence-movetousr to openni2 and I ended up not
doing it. It is one file that is to be moved and that file happens to
trigger a DEP17P7 problem. For this reason, I added a DEP17M10
mitigation via protective diversions. I note that this is quite
repetitive in maintainer scripts and wonder whether there should be some
automation. On the flip side I expect a low two-digit number of cases
where this is needed. It also needs a lintian override.

When combining this unconditional mitigation with dh_movetousr, there is
a risk of keeping the mitigation when performing the backport reverting
the move. When doing that, the file will end up missing after an upgrade
(because the unpack would be diverted and then removed). So the
automatic reversion of dh_movetousr is actually harmful here. Moreover
if we'd then do another version of openni2 and backport that (again
reverting the move), the upgrade from that backport to trixie would also
be broken, because the version check in preinst no longer matches. So
instead, I am unconditionally moving the file here even in
bookworm-backports. As far as I understand it, udev processes both
locations, so this is fine and if it does not, bookworm is eventually
merged anyway. I also explicitly made it work such that if
dh_installudev moves, it'll not FTBFS.

So I think this is how it works best, but maybe this is not the final
solution and hence I'm tagging it moreinfo. What do you think?

Helmut
diff -Nru openni2-2.2.0.33+dfsg/debian/changelog 
openni2-2.2.0.33+dfsg/debian/changelog
--- openni2-2.2.0.33+dfsg/debian/changelog      2021-02-05 20:15:35.000000000 
+0100
+++ openni2-2.2.0.33+dfsg/debian/changelog      2023-10-23 14:41:21.000000000 
+0200
@@ -1,3 +1,9 @@
+openni2 (2.2.0.33+dfsg-16) UNRELEASED; urgency=medium
+
+  * Move files to /usr. (Closes: #-1)
+
+ -- Helmut Grohne <[email protected]>  Mon, 23 Oct 2023 14:41:21 +0200
+
 openni2 (2.2.0.33+dfsg-15) unstable; urgency=medium
 
   * Add patch for Java 17 (Closes: #982019)
diff -Nru openni2-2.2.0.33+dfsg/debian/control 
openni2-2.2.0.33+dfsg/debian/control
--- openni2-2.2.0.33+dfsg/debian/control        2020-12-03 19:21:15.000000000 
+0100
+++ openni2-2.2.0.33+dfsg/debian/control        2023-10-23 14:41:21.000000000 
+0200
@@ -7,7 +7,7 @@
 Build-Depends: debhelper-compat (= 13),
                freeglut3-dev,
                libusb-1.0-0-dev,
-               python3,
+               python3:any,
                doxygen,
                graphviz,
                libjpeg-dev,
diff -Nru openni2-2.2.0.33+dfsg/debian/libopenni2-0.lintian-overrides 
openni2-2.2.0.33+dfsg/debian/libopenni2-0.lintian-overrides
--- openni2-2.2.0.33+dfsg/debian/libopenni2-0.lintian-overrides 1970-01-01 
01:00:00.000000000 +0100
+++ openni2-2.2.0.33+dfsg/debian/libopenni2-0.lintian-overrides 2023-10-23 
14:41:21.000000000 +0200
@@ -0,0 +1,2 @@
+# DEP17P7 mitigation
+diversion-for-unknown-file lib/udev/rules.d/60-libopenni2-0.rules [*]
diff -Nru openni2-2.2.0.33+dfsg/debian/libopenni2-0.postinst 
openni2-2.2.0.33+dfsg/debian/libopenni2-0.postinst
--- openni2-2.2.0.33+dfsg/debian/libopenni2-0.postinst  1970-01-01 
01:00:00.000000000 +0100
+++ openni2-2.2.0.33+dfsg/debian/libopenni2-0.postinst  2023-10-23 
14:39:34.000000000 +0200
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -e
+
+if test "$1" = configure && test -n "$(dpkg-divert --list 
/lib/udev/rules.d/60-libopenni2-0.rules)"; then
+       rm -f /lib/udev/rules.d/60-libopenni2-0.rules.usr-is-merged
+       dpkg-divert --no-rename --package usr-is-merged --remove 
/lib/udev/rules.d/60-libopenni2-0.rules
+fi
+
+#DEBHELPER#
diff -Nru openni2-2.2.0.33+dfsg/debian/libopenni2-0.postrm 
openni2-2.2.0.33+dfsg/debian/libopenni2-0.postrm
--- openni2-2.2.0.33+dfsg/debian/libopenni2-0.postrm    1970-01-01 
01:00:00.000000000 +0100
+++ openni2-2.2.0.33+dfsg/debian/libopenni2-0.postrm    2023-10-23 
14:41:21.000000000 +0200
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+set -e
+
+if test "$1" = abort-upgrade -o "$1" = upgrade-failed -o "$1" = remove && test 
-n "$(dpkg-divert --list /lib/udev/rules.d/60-libopenni2-0.rules)"; then
+       rm -f /lib/udev/rules.d/60-libopenni2-0.rules.usr-is-merged
+       dpkg-divert --no-rename --package usr-is-merged --remove 
/lib/udev/rules.d/60-libopenni2-0.rules
+fi
+
+#DEBHELPER#
diff -Nru openni2-2.2.0.33+dfsg/debian/libopenni2-0.preinst 
openni2-2.2.0.33+dfsg/debian/libopenni2-0.preinst
--- openni2-2.2.0.33+dfsg/debian/libopenni2-0.preinst   1970-01-01 
01:00:00.000000000 +0100
+++ openni2-2.2.0.33+dfsg/debian/libopenni2-0.preinst   2023-10-23 
14:41:21.000000000 +0200
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+
+if test "$1" = upgrade && dpkg --compare-versions "$2" lt 2.2.0.33+dfsg-16; 
then
+       dpkg-divert --no-rename --package usr-is-merged --divert 
/lib/udev/rules.d/60-libopenni2-0.rules.usr-is-merged --add 
/lib/udev/rules.d/60-libopenni2-0.rules
+fi
+
+#DEBHELPER#
diff -Nru openni2-2.2.0.33+dfsg/debian/rules openni2-2.2.0.33+dfsg/debian/rules
--- openni2-2.2.0.33+dfsg/debian/rules  2020-12-03 19:11:13.000000000 +0100
+++ openni2-2.2.0.33+dfsg/debian/rules  2023-10-23 14:41:21.000000000 +0200
@@ -8,5 +8,8 @@
        cd Source/Documentation && python3 ./Runme.py
        cd Bin/*-Release/ && mv NiViewer NiViewer2
 
+execute_after_dh_installudev:
+       set -e; if test -d debian/libopenni2-0/lib/udev/rules.d; then mv 
debian/libopenni2-0/lib/udev debian/libopenni2-0/usr/lib; fi
+
 override_dh_shlibdeps:
        dh_shlibdeps -- --ignore-missing-info

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