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#!/bin/sh
# --- T2-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
#
# T2 SDE: package/.../xorg-server/xvfb-run.sh
# Copyright (C) 2005 The T2 SDE Project
# Copyright (C) XXXX - 2005 Debian
#
# More information can be found in the files COPYING and README.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- T2-COPYRIGHT-NOTE-END ---
# $Id$
# from: http://necrotic.deadbeast.net/xsf/XFree86/trunk/debian/local/xvfb-run
# This script starts an instance of Xvfb, the "fake" X server, runs a command
# with that server available, and kills the X server when done. The return
# value of the command becomes the return value of this script.
#
# If anyone is using this to build a Debian package, make sure the package
# Build-Depends on xvfb, xbase-clients, and xfonts-base.
set -e
PROGNAME=xvfb-run
SERVERNUM=99
AUTHFILE=
ERRORFILE=/dev/null
STARTWAIT=3
XVFBARGS="-screen 0 640x480x24"
LISTENTCP="-nolisten tcp"
XAUTHPROTO=.
# Query the terminal to establish a default number of columns to use for
# displaying messages to the user. This is used only as a fallback in the event
# the COLUMNS variable is not set. ($COLUMNS can react to SIGWINCH while the
# script is running, and this cannot, only being calculated once.)
DEFCOLUMNS=$(stty size 2>/dev/null | awk '{print $2}') || true
if ! expr "$DEFCOLUMNS" : "[[:digit:]]\+$" >/dev/null 2>&1; then
DEFCOLUMNS=80
fi
# Display a message, wrapping lines at the terminal width.
message () {
echo "$PROGNAME: $*" | fmt -t -w ${COLUMNS:-$DEFCOLUMNS}
}
# Display an error message.
error () {
message "error: $*" >&2
}
# Display a usage message.
usage () {
if [ -n "$*" ]; then
message "usage error: $*"
fi
cat <<EOF
Usage: $PROGNAME [OPTION ...] COMMAND
Run COMMAND (usually an X client) in a virtual X server environment.
Options:
-a --auto-servernum try to get a free server number, starting at
--server-num (deprecated, use --auto-display
instead)
-d --auto-display use the X server to find a display number
automatically
-e FILE --error-file=FILE file used to store xauth errors and Xvfb
output (default: $ERRORFILE)
-f FILE --auth-file=FILE file used to store auth cookie
(default: ./.Xauthority)
-h --help display this usage message and exit
-n NUM --server-num=NUM server number to use (default: $SERVERNUM)
-l --listen-tcp enable TCP port listening in the X server
-p PROTO --xauth-protocol=PROTO X authority protocol name to use
(default: xauth command's default)
-s ARGS --server-args=ARGS arguments (other than server number and
"-nolisten tcp") to pass to the Xvfb server
(default: "$XVFBARGS")
-w DELAY --wait=DELAY delay in seconds to wait for Xvfb to start
before running COMMAND (default: $STARTWAIT)
EOF
}
# Find a free server number by looking at .X*-lock files in /tmp.
find_free_servernum() {
# Sadly, the "local" keyword is not POSIX. Leave the next line commented in
# the hope Debian Policy eventually changes to allow it in /bin/sh scripts
# anyway.
#local i
i=$SERVERNUM
while [ -f /tmp/.X$i-lock ]; do
i=$(($i + 1))
done
echo $i
}
# Parse the command line.
ARGS=$(getopt --options +ade:f:hn:lp:s:w: \
--long auto-servernum,error-file:auth-file:,help,server-num:,listen-tcp,xauth-protocol:,server-args:,wait: \
--name "$PROGNAME" -- "$@")
GETOPT_STATUS=$?
if [ $GETOPT_STATUS -ne 0 ]; then
error "internal error; getopt exited with status $GETOPT_STATUS"
exit 6
fi
eval set -- "$ARGS"
while :; do
case "$1" in
-a|--auto-servernum) SERVERNUM=$(find_free_servernum) ;;
-d|--auto-display) AUTO_DISPLAY=1 ;;
-e|--error-file) ERRORFILE="$2"; shift ;;
-f|--auth-file) AUTHFILE="$2"; shift ;;
-h|--help) SHOWHELP="yes" ;;
-n|--server-num) SERVERNUM="$2"; shift ;;
-l|--listen-tcp) LISTENTCP="" ;;
-p|--xauth-protocol) XAUTHPROTO="$2"; shift ;;
-s|--server-args) XVFBARGS="$2"; shift ;;
-w|--wait) STARTWAIT="$2"; shift ;;
--) shift; break ;;
*) error "internal error; getopt permitted \"$1\" unexpectedly"
exit 6
;;
esac
shift
done
if [ "$SHOWHELP" ]; then
usage
exit 0
fi
if [ -z "$*" ]; then
usage "need a command to run" >&2
exit 2
fi
if ! type xauth >/dev/null; then
error "xauth command not found"
exit 3
fi
# Set up the temp dir for the pid and X authorization file
XVFB_RUN_TMPDIR="$(mktemp --directory --tmpdir $PROGNAME.XXXXXX)"
# If the user did not specify an X authorization file to use, set up a temporary
# directory to house one.
if [ -z "$AUTHFILE" ]; then
AUTHFILE=$(mktemp -p "$XVFB_RUN_TMPDIR" Xauthority.XXXXXX)
fi
# Start Xvfb.
MCOOKIE=$(mcookie)
if [ -z "$AUTO_DISPLAY" ]; then
# Old style using a pre-computed SERVERNUM
XAUTHORITY=$AUTHFILE Xvfb ":$SERVERNUM" $XVFBARGS $LISTENTCP >>"$ERRORFILE" \
2>&1 &
XVFBPID=$!
else
# New style using Xvfb to provide a free display
PIDFILE=$(mktemp -p "$XVFB_RUN_TMPDIR" pid.XXXXXX)
SERVERNUM=$(XAUTHORITY=$AUTHFILE Xvfb -displayfd 1 $XVFBARGS $LISTENTCP \
2>"$ERRORFILE" & echo $! > $PIDFILE)
XVFBPID=$(cat $PIDFILE)
fi
sleep "$STARTWAIT"
XAUTHORITY=$AUTHFILE xauth source - << EOF >>"$ERRORFILE" 2>&1
add :$SERVERNUM $XAUTHPROTO $MCOOKIE
EOF
# Start the command and save its exit status.
set +e
DISPLAY=:$SERVERNUM XAUTHORITY=$AUTHFILE "$@" 2>&1
RETVAL=$?
set -e
# Kill Xvfb now that the command has exited.
kill $XVFBPID
# Clean up.
XAUTHORITY=$AUTHFILE xauth remove ":$SERVERNUM" >"$ERRORFILE" 2>&1
if [ -n "$XVFB_RUN_TMPDIR" ]; then
if ! rm -r "$XVFB_RUN_TMPDIR"; then
error "problem while cleaning up temporary directory"
exit 5
fi
fi
# Return the executed command's exit status.
exit $RETVAL
# vim:set ai et sts=4 sw=4 tw=80:
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