On Tue, Sep 17, 2019 at 03:14:22PM +0200, Marc Espie wrote:
| On Tue, Sep 17, 2019 at 01:48:19PM +0200, Paul de Weerd wrote:
| > On Tue, Sep 17, 2019 at 01:27:23PM +0200, Marc Espie wrote:
| > | > By having each set install a specific file in a well-known location.
| > | > Before sysupgrade I wrote my own script to upgrade machines, this uses
| > | > /var/db/sets/{base,comp,game,man,xbase,xfont,xserve,xshare} to
| > | > determine what has been installed and upgrade only those sets.
| > |
| > | We actually know what file belongs to which set.
| > | see /usr/lib/locate/src.db
| >
| > This doesn't list files from x-sets.
|
| ... there's obviously the corresponding database for x in xbase, duh
Right. Wasn't aware of that one, but doesn't really make it easier:
So, if /usr/lib/locate/src.db exists, we can see if the files that it
knows about can be found on the local filesystem and then per set pick
a file to check for existence. And if /usr/X11R6/lib/locate/xorg.db
exists, we can do the same for the x-sets.
What if I chose to only install xfont, to use the TTF fonts with my
webserver? Then I don't have the xorg.db locate database but would
still have a working system, but now you're not upgrading xfont?
The "file to set"-mapping isn't very convenient to determine which sets
were installed and have to be upgraded. Having each set contain one
small (empty?) file in a known location would make this trivial at a
very small cost.
But I repeat: the argument that not installing all sets gives you a
'non standard' system suggests that this approach isn't viable.
Cheers,
Paul
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