[Pkg-emacsen-addons] Bug#893598: Bug#893598: Bug#893598: yasnippet-snippets: Error while updating

[Nicholas D Steeves]

On Tue, Mar 20, 2018 at 06:53:15PM -0400, Nicholas D Steeves wrote:
> Control: tags -1 confirmed
> 
> Hi Axel,
> 
> Thank you for confirming this bug!
> 
> On Tue, Mar 20, 2018 at 10:44:34PM +0100, Axel Beckert wrote:
> > Hi Nicholas,
> > 
> > I just experienced the (probably) same issue:
> > 
> > Preparing to unpack .../87-yasnippet-snippets_0~git20180307.2b4c4d7e-1_all.deb ...
> > Unpacking yasnippet-snippets (0~git20180307.2b4c4d7e-1) over (0~git20161123-1) ...
> > dpkg: error processing archive /tmp/apt-dpkg-install-lJHmtd/87-yasnippet-snippets_0~git20180307.2b4c4d7e-1_all.deb (--unpack):
> >  unable to open '/usr/share/yasnippet-snippets/clojure-mode/.yas-parents.dpkg-new': No such file or directory
> > Errors were encountered while processing:
> >  /tmp/apt-dpkg-install-lJHmtd/87-yasnippet-snippets_0~git20180307.2b4c4d7e-1_all.deb
> > 
> > Nicholas D Steeves wrote:
> > > Is /usr or /usr/share a symlink or bind mount to somewhere else, or
> > > are either of them mounted via NFS?
> > 
> > Not in my case:
> > 
> > → mount | fgrep usr
> > → ls -ldF /usr /usr/share
> > drwxr-xr-x  12 root root  4096 Feb 28 05:29 /usr/
> > drwxr-xr-x 990 root root 32768 Mar 20 22:01 /usr/share/
> > 
> > > Also, will the following
> > > commands reproduce "unable to open
> > > '/usr/share/yasnippet-snippets/clojure-mode/.yas-parents.dpkg-new': No
> > > such file or directory"?
> > [...]
> > > curl -O https://debian.org/debian/pool/main/y/yasnippet-snippets/yasnippet-snippets_0~git20161123-1_all.deb
> > 
> > JFTR: This is no valid Debian mirror URL.
> 
> Oh my, sorry about that!  I guess this one will have to do:
>     http://ftp.debian.org/debian/pool/main/y/yasnippet-snippets/yasnippet-snippets_0~git20161123-1_all.deb
> 
> > Anyway, I first purged yasnippet-snippets (0~git20161123-1 was still
> > installed due to the failed upgrade), then I installed
> > yasnippet-snippets 0~git20161123-1 from Debian Testing again. Then I
> > tried to upgrade yasnippet-snippets to 0~git20180307.2b4c4d7e-1 from
> > Debian Unstable again:
> > 
> > [...]
> > Removing yasnippet-snippets (0~git20161123-1) ...
> > [...]
> > Selecting previously unselected package yasnippet-snippets.
> > (Reading database ... 1040898 files and directories currently installed.)
> > Preparing to unpack .../yasnippet-snippets_0~git20161123-1_all.deb ...
> > Unpacking yasnippet-snippets (0~git20161123-1) ...
> > Setting up yasnippet-snippets (0~git20161123-1) ...
> > [...]
> > Preparing to unpack .../yasnippet-snippets_0~git20180307.2b4c4d7e-1_all.deb ...
> > Unpacking yasnippet-snippets (0~git20180307.2b4c4d7e-1) over (0~git20161123-1) ...
> > Setting up yasnippet-snippets (0~git20180307.2b4c4d7e-1) ...
> > [...]
> > 
> > So, no, if the initially installed yasnippet-snippets version is
> > 0~git20161123-1, the issue doesn't seem to happen.
> > 
> > Which leaves the question: Upgrading from which version does exhibit
> > that behaviour?
> > 
> > In my case it was an Debian Unstable which has been upgraded
> > regularily since its installation on 2014-04-08. yasnippet-snippets
> > has been first installed in version 0~git20150512-1 on Thu May 28
> > 19:16:25 2015 +0200.
> 
> Thank you very much for this information!  Luckily the only three
> versions are: 0~git20150512-1, 0~git20161123-1, and
> 0~git20180307.2b4c4d7e-1.
> 
> Because http://archive.debian.net is not available I'll try building
> these three versions, purging my current 0~git20180307.2b4c4d7e-1, and
> then sequentially installing/upgrading.  My hypothesis is now that
> this bug is cause by an artifact introduced by upgrading from the 2015
> to 2016 version.
> 
> 
> Time to test!
> Nicholas



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There, I was finally able to reproduce with:

sudo apt purge yasnippet-snippets
wget
http://archive.ubuntu.com/ubuntu/pool/universe/y/yasnippet-snippets/yasnippet-snippets_0~git20150512-1_all.deb
wget http://ftp.debian.org/debian/pool/main/y/yasnippet-snippets/yasnippet-snippets_0~git20161123-1_all.deb

sudo dpkg -i yasnippet-snippets_0~git20150512-1_all.deb
sudo dpkg -i yasnippet-snippets_0~git20161123-1_all.deb
sudo apt upgrade # or sudo dpkg -i yasnippet-snippets_0~git20180307.2b4c4d7e-1_all.deb

So affected users are those who track Debian sid (and who installed
the 2015 version), plus Ubuntu users who installed xenial (16.04LTS)

Well, that's all the time I have for today!
Cheers,
Nicholas
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