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# global Xsession file -- used by display managers and xinit (startx)
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# $Id: Xsession 967 2005-12-27 07:20:55Z dnusinow $
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# pretty-print messages of arbitrary length; use xmessage if it
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# is available and $DISPLAY is set
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MESSAGE="$PROGNAME: $*"
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echo "$MESSAGE" | fold -s -w ${COLUMNS:-80} >&2
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if [ -n "$DISPLAY" ] && which xmessage > /dev/null 2>&1; then
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echo "$MESSAGE" | fold -s -w ${COLUMNS:-80} | xmessage -center -file -
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# pretty-print messages of arbitrary length (no trailing newline); use
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# xmessage if it is available and $DISPLAY is set
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MESSAGE="$PROGNAME: $*"
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echo -n "$MESSAGE" | fold -s -w ${COLUMNS:-80} >&2;
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if [ -n "$DISPLAY" ] && which xmessage > /dev/null 2>&1; then
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echo -n "$MESSAGE" | fold -s -w ${COLUMNS:-80} | xmessage -center -file -
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# exit script with error
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internal_errormsg () {
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# exit script with error; essentially a "THIS SHOULD NEVER HAPPEN" message
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# One big call to message() for the sake of xmessage; if we had two then
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# the user would have dismissed the error we want reported before seeing the
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# request to report it.
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"Please report the installed version of the \"x11-common\"" \
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"package and the complete text of this error message to" \
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"<debian-x@lists.debian.org>."
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# initialize variables for use by all session scripts
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OPTIONFILE=/etc/X11/Xsession.options
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SYSRESOURCES=/etc/X11/Xresources
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USRRESOURCES=$HOME/.Xresources
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SYSSESSIONDIR=/etc/X11/Xsession.d
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USERXSESSION=$HOME/.xsession
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USERXSESSIONRC=$HOME/.xsessionrc
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ALTUSERXSESSION=$HOME/.Xsession
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ERRFILE=$HOME/.xsession-errors
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# attempt to create an error file; abort if we cannot
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if (umask 077 && touch "$ERRFILE") 2> /dev/null && [ -w "$ERRFILE" ] &&
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[ ! -L "$ERRFILE" ]; then
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elif ERRFILE=$(tempfile 2> /dev/null); then
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if ! ln -sf "$ERRFILE" "${TMPDIR:=/tmp}/xsession-$USER"; then
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message "warning: unable to symlink \"$TMPDIR/xsession-$USER\" to" \
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"\"$ERRFILE\"; look for session log/errors in" \
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"\"$TMPDIR/xsession-$USER\"."
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errormsg "unable to create X session log/error file; aborting."
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# truncate ERRFILE if it is too big to avoid disk usage DoS
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if [ "`stat -c%s \"$ERRFILE\"`" -gt 500000 ]; then
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tail -c 500000 "$ERRFILE" > "$T" && mv -f "$T" "$ERRFILE" || rm -f "$T"
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exec >>"$ERRFILE" 2>&1
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echo "$PROGNAME: X session started for $LOGNAME at $(date)"
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# sanity check; is our session script directory present?
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if [ ! -d "$SYSSESSIONDIR" ]; then
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errormsg "no \"$SYSSESSIONDIR\" directory found; aborting."
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# Attempt to create a file of non-zero length in /tmp; a full filesystem can
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# cause mysterious X session failures. We do not use touch, :, or test -w
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# because they won't actually create a file with contents. We also let standard
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# error from tempfile and echo go to the error file to aid the user in
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# determining what went wrong.
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WRITE_TEST=$(tempfile)
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if ! echo "*" >>"$WRITE_TEST"; then
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message "warning: unable to write to ${WRITE_TEST%/*}; X session may exit" \
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# use run-parts to source every file in the session directory; we source
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# instead of executing so that the variables and functions defined above
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# are available to the scripts, and so that they can pass variables to each
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SESSIONFILES=$(run-parts --list $SYSSESSIONDIR)
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if [ -n "$SESSIONFILES" ]; then
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for SESSIONFILE in $SESSIONFILES; do
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# vim:set ai et sts=2 sw=2 tw=80:
added
removed
debian/local/Xsession
