[lsb-discuss] Agreement on directory structure for printing
Till Kamppeter
till.kamppeter at gmail.com
Mon Aug 7 04:42:40 PDT 2006
Hi,
here is the standard for the printer driver/PPD directory structure on
which we have agreed so far (this is Wendy Philips' proposal from July
27 with the /opt/ directory structure modified to comply FHS according
to Christopher Yeoh's postings):
1. Distro supplied files
The filesystem layout as utilized by the distibutions when the
ppd files and print drivers are initially installed on the
system. It is presumed that this will also be used for patches
and updates created and delivered by the distro.
a. Installation path for ppd files
/usr/share/ppd/<supplier>/<manufacturer>/
b. Installation path for print drivers
/usr/lib/printdriver/<supplier>
2. Third Party Vendor supplied files
The filesystem layout to be utilized by third party vendors
for delivery of ppd files, print drivers and other vendor
supplied files.
a. Installation path for PPD files
/opt/<supplier>/<internal structure non specified>
with symlink(s) to let the PPD files appear in
/opt/share/ppd/<supplier>/<manufacturer>
b. Installation path for print drivers
/opt/<supplier>/<internal structure non specified>
with symlink(s) to let the driver files appear in
/opt/lib/printdriver/<supplier>/
As the symlink paths are not (yet) registered with LANANA it
should be taken care of not overwriting anything existing with
them. Post-install script should not simply overwrite
files/directories. In reality a permission of the sys admin
would be needed, but in practice this is not always possible as
post-install scripts called from a package installation need to
be non-interactive.
3. Files created, downloaded, or modified by a system administrator.
a. Installation path for PPD files
/usr/local/print/ppd/<supplier>/<manufacturer>
b. Installation path for print drivers
/usr/local/print/driver/<supplier>
4. Common features
These features apply to each of the three supplier categories,
distro, third party vendor, and administrator.
a. PPD file naming convention
<MFGString>-<MDLString>-<driver>-<language>.ppd
b. The contents of the driver directories are entirely
determined by the supplier. The path to a driver is found
by using an absolute path in the ppd file.
c. Install scripts must be written in Bourne Shell without
any extensions.
5. Precedence Rules
Highest precedence is given to the system administrator which
allows for system by system modfications as determined by
support personel.
PPD files
Admin : /usr/local/print/ppd Highest
Third Party Vendor : /opt/<supplier>
Distro : /usr/share/ppd Lowest
Drivers
Admin : /usr/local/print/driver Highest
Third Party Vendor : /opt/<supplier>
Distro : /usr/lib/printdriver Lowest
Till
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