Date: Thu, 23 Sep 2010 18:41:16 -0400 (EDT) From: Garrett Wollman <wollman@hergotha.csail.mit.edu> To: FreeBSD-gnats-submit@FreeBSD.org Subject: ports/150891: [cups-base] slightly more worked-out example devd scripts Message-ID: <201009232241.o8NMfGfc075522@hergotha.csail.mit.edu> Resent-Message-ID: <201009232250.o8NMo15H040727@freefall.freebsd.org>
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>Number: 150891
>Category: ports
>Synopsis: [cups-base] slightly more worked-out example devd scripts
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-ports-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Thu Sep 23 22:50:01 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Garrett Wollman
>Release: FreeBSD 8.1-RELEASE amd64
>Organization:
FreeBSD project
>Environment:
System: FreeBSD hergotha.csail.mit.edu 8.1-RELEASE FreeBSD 8.1-RELEASE #0 r212140M: Sat Sep 4 00:16:21 EDT 2010 wollman@hergotha.csail.mit.edu:/usr/obj/usr/src/sys/HERGOTHA amd64
>Description:
cups-base installs a devd configuration fragment that handles one
aspect (permissions) of ulpt devices' transitory existence. I built
something a little bit more complicated that also pauses and unpauses
the relevant print queues when printers arrive and depart. I don't
know if anyone else will find this useful -- I didn't even notice the
example script until after I had built mine. (Is it possible that
cupsd will keep retrying until the printer reappears? It wasn't at
all obvious to me.)
>How-To-Repeat:
>Fix:
# This is a shell archive. Save it in a file, remove anything before
# this line, and then unpack it by entering "sh file". Note, it may
# create directories; files and directories will be owned by you and
# have default permissions.
#
# This archive contains:
#
# ulpt.awk
# ulpt.conf
# ulpt.script
#
echo x - ulpt.awk
sed 's/^X//' >ulpt.awk << '0ad6437134085951c9cf3a730210b10c'
X/^<(Default)?Printer[[:space:]]/ {
X if (match($0, /[^[:space:]>]+>/)) {
X PRINTER=substr($0, RSTART, RLENGTH - 1);
X }
X}
X/^<\/(Default)?Printer/ {
X PRINTER=""
X}
Xmatch($0, "DeviceURI[[:space:]]+usb:/dev/" ENVIRON["DEVICENAME"] "\$") {
X print PRINTER
X}
0ad6437134085951c9cf3a730210b10c
echo x - ulpt.conf
sed 's/^X//' >ulpt.conf << '5f167b5e895f429179122d02fa2a01a2'
X# Tell cups to pause and unpause the printer when it arrives and departs.
Xattach 10 {
X device-name "ulpt[0-9]";
X action "/etc/devd/ulpt.script enable $device-name";
X};
X
Xdetach 10 {
X device-name "ulpt[0-9]";
X action "/etc/devd/ulpt.script disable $device-name";
X};
5f167b5e895f429179122d02fa2a01a2
echo x - ulpt.script
sed 's/^X//' >ulpt.script << '0f8c62a030511cba959e182fedf10721'
X#!/bin/sh
X
Xusage() {
X echo "$0: usage:" >&2
X echo "$0 [enable|disable] devicename" >&2
X exit 1
X}
X
Xif [ -z "$2" ]; then
X usage
Xfi
X
Xprinter="$(DEVICENAME="$2" awk -f /etc/devd/ulpt.awk /usr/local/etc/cups/printers.conf)"
X
Xif [ -z "$printer" ]; then
X # nothing to do
X exit 0
Xfi
X
Xcase "$1" in
Xenable) chown cups:cups "/dev/$2"
X /usr/local/sbin/cupsenable "$printer"
X ;;
Xdisable)
X /usr/local/sbin/cupsdisable "$printer"
X ;;
X*)
X usage
X ;;
Xesac
Xexit 0
0f8c62a030511cba959e182fedf10721
exit
>Release-Note:
>Audit-Trail:
>Unformatted:
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