On 01/07/2010 03:09 AM, Josselin Mouette wrote: > Le jeudi 07 janvier 2010 à 02:16 -0500, Daniel Kahn Gillmor a écrit : >> Sorry to resurrect an old thread here, but i'm having trouble making use >> of joss' advice here: >> >> On 11/10/2009 10:38 AM, Josselin Mouette wrote: >>> packages which remove the call to dh_installdefoma need to >>> add something like this in their preinst: > >>> if [ "$1" = remove ] && dpkg --compare-versions "$2" lt-nl $VERSION; > >> I'm having trouble understanding why the test is checking >> >> [ "$1" = remove ] >> >> instead of >> >> [ "$1" = upgrade ] || [ "$1" = install ] >> >> Isn't this operation relevant on upgrade/install, instead of on removal? > > Of course, you are right. OK, thanks for the feedback. In case it's useful to anyone else migrating away from defoma, what i finally came up with (for ttf-fifthhorseman-dkg-handwriting) was: --------------------- FIRST_VERSION_NO_DEFOMA=0.13-3 FILE=/etc/defoma/hints/ttf-fifthhorseman-dkg-handwriting.hints if [ "$1" = upgrade ] || [ "$1" = install ] && dpkg --compare-versions "$2" lt-nl $FIRST_VERSION_NO_DEFOMA; then if [ -x /usr/bin/defoma-font ]; then if [ "$1" = upgrade ]; then # no need to defoma-font purge-all if we aren't upgrading defoma-font purge-all $FILE fi fi rm_conffile ttf-fifthhorseman-dkg-handwriting $FILE fi --------------------- Note that i needed to wrap the defoma-font purge-all line as well, so that i would properly handle the case where the sysadmin: 0) installs an old defoma-ized version 1) removes it, leaving conffiles 2) installs a new non-defoma version without that extra test, the final installation would fail with these error messages: 0 pip:~# dpkg --install /home/dkg/src/ttf-fifthhorseman-dkg-handwriting/ttf-fifthhorseman-dkg-handwriting_0.13-3_all.deb Selecting previously deselected package ttf-fifthhorseman-dkg-handwriting. (Reading database ... 162374 files and directories currently installed.) Unpacking ttf-fifthhorseman-dkg-handwriting (from .../ttf-fifthhorseman-dkg-handwriting_0.13-3_all.deb) ... W: /usr/share/fonts/truetype/fifthhorseman/dkgIt.ttf: not registered. W: /usr/share/fonts/truetype/fifthhorseman/dkgBd.ttf: not registered. W: /usr/share/fonts/truetype/fifthhorseman/dkgBI.ttf: not registered. W: /usr/share/fonts/truetype/fifthhorseman/dkg.ttf: not registered. dpkg: error processing /home/dkg/src/ttf-fifthhorseman-dkg-handwriting/ttf-fifthhorseman-dkg-handwriting_0.13-3_all.deb (--install): subprocess new pre-installation script returned error exit status 1 Errors were encountered while processing: /home/dkg/src/ttf-fifthhorseman-dkg-handwriting/ttf-fifthhorseman-dkg-handwriting_0.13-3_all.deb 1 pip:~# hope this helps other folks with the migration. Regards, --dkg
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