--- Begin Message ---
- To: Debian Bug Tracking System <submit@bugs.debian.org>
- Subject: Xsession: please wrap around $STARTUP to allow launching other processes
- From: Tanguy Ortolo <tanguy+debian@ortolo.eu>
- Date: Tue, 04 Dec 2012 16:19:21 +0100
- Message-id: <20121204151921.7969.32467.reportbug@dick.ortolo.eu>
Package: x11-common
Severity: wishlist
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Hello,
With its current design, Xsession builds a long $STARTUP command line in
the different scripts present in /etc/X11/Xsession.d/, and finally runs
it from /etc/X11/Xsession.d/99x11-common_start.
This is appropriate for agents such as ssh-agent or gpg-agent, that are
used in a mode where they act as wrappers around the command they are
given as argument, for instance:
gpg-agent --daemon dbus-launch --exit-with-session ~/.xsession
This design, however, can cause problems with programs that are not
designed with such a wrapper mode. For instance, to launch xbindkeys or
xmodmap from Xsession, we have to do:
xmodmap &
xbindkeys &
gpg-agent --daemon dbus-launch --exit-with-session ~/.xsession
As indicated in bug #659406, this is problematic for xbindkeys, which is
meant to launch commands: when launched this way, it does not have the
environment variables that would be set by the different agents, and
thus the commands it launches inherit from a reduced environment.
I think it would be more flexible to
1. modify /etc/X11/Xsession.d/50x11-common_determine-startup so that it
defines:
$STARTUP=/etc/X11/Xsession.start
$XSESSION=$USERXSESSION or $ALTUSERXSESSION or …
star;
2. to write a wrapper shell script /etc/X11/Xsession.start to launch the
eventual additional programs and the final session:
#!/bin/sh
eval $OTHERPROGRAMS
exec $XSESSION
3. let /etc/X11/Xsession.d/99x11-common_start start, not the final
session as it currently does, but this wrapper script:
exec $STARTUP
(yes, nothing to be changed here, only the content of $STARTUP would
be different)
This way, scripts from packages such as xbindkeys could simply add
commands to $OTHERPROGRAMS and expect to be run in the regular
session environment.
- --
,--.
: /` ) Tanguy Ortolo <xmpp:tanguy@ortolo.eu>
| `-' Debian Developer <irc://irc.oftc.net/Tanguy>
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