mirror of
https://github.com/kuhyx/utils.git
synced 2026-11-10 19:07:17 +01:00
Krzysztof kuhy Rudnicki
694c013b6b
Some checks failed
dependency freshness / dependencies on newest stable (push) Has been cancelled
file length / file-length (push) Has been cancelled
md-naming / markdown naming convention (push) Has been cancelled
palette drift / palette (push) Has been cancelled
shared gate tests / gate unit tests (push) Has been cancelled
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
63 lines
2.9 KiB
Bash
63 lines
2.9 KiB
Bash
#!/bin/sh
|
|
# Installed to /etc/profile.d/vmbox-x11.sh by provision-desktop.sh (golden
|
|
# image) and re-installed by desktop-lightdm.sh (per-sandbox lightdm switch).
|
|
# Sourced by `vm run`; POSIX sh, because /etc/profile.d may be read by dash.
|
|
#
|
|
# Point non-login shells at the guest's X session, if one is running.
|
|
# Sourced by vmbox's `vm run`; harmless when no X session exists.
|
|
if [ -z "${DISPLAY:-}" ]; then
|
|
# Wait briefly for the X session rather than reporting "no X".
|
|
#
|
|
# vmbox now returns control as soon as sshd answers (~11s), which is
|
|
# EARLIER than getty@tty1 autologin has run .bash_profile and started
|
|
# Xorg. Without this wait the first `vm run` after a boot silently gets
|
|
# no DISPLAY and every X tool fails as if the sandbox had no X server --
|
|
# the exact failure this file exists to prevent, reintroduced by making
|
|
# the rest of the tool faster. Bounded, and skipped entirely once Xorg
|
|
# is up, so a guest with no graphical session costs at most this wait.
|
|
# Default 0: a plain `vm run` must not pay for a graphical session it is
|
|
# not using. Set VMBOX_X_WAIT=<seconds> for X11/i3/locker work.
|
|
_vmbox_x_wait="${VMBOX_X_WAIT:-0}"
|
|
while [ "$_vmbox_x_wait" -gt 0 ]; do
|
|
pgrep -x Xorg >/dev/null 2>&1 && break
|
|
sleep 1
|
|
_vmbox_x_wait=$((_vmbox_x_wait - 1))
|
|
done
|
|
unset _vmbox_x_wait
|
|
if pgrep -x Xorg >/dev/null 2>&1; then
|
|
DISPLAY=":0"
|
|
export DISPLAY
|
|
fi
|
|
fi
|
|
if [ -n "${DISPLAY:-}" ] && [ -z "${XAUTHORITY:-}" ]; then
|
|
# Prefer the auth file the running Xorg was actually started with. Test
|
|
# READABILITY, not existence: under lightdm that is /run/lightdm/root/:0,
|
|
# root-only, and the user's cookie is ~/.Xauthority instead. The startx
|
|
# serverauth glob is the last resort for the golden image's tty1 session.
|
|
_vmbox_xauth="$(tr '\0' '\n' < /proc/"$(pgrep -x Xorg | head -1)"/cmdline 2>/dev/null \
|
|
| grep -A1 -x -- -auth | tail -1)"
|
|
if [ ! -r "${_vmbox_xauth:-}" ]; then
|
|
_vmbox_xauth="$HOME/.Xauthority"
|
|
fi
|
|
if [ ! -r "${_vmbox_xauth:-}" ]; then
|
|
for _vmbox_cand in /tmp/serverauth.*; do
|
|
[ -r "$_vmbox_cand" ] && _vmbox_xauth="$_vmbox_cand"
|
|
done
|
|
unset _vmbox_cand
|
|
fi
|
|
if [ -r "${_vmbox_xauth:-}" ]; then
|
|
XAUTHORITY="$_vmbox_xauth"
|
|
export XAUTHORITY
|
|
fi
|
|
unset _vmbox_xauth
|
|
fi
|
|
# i3 tools look here when I3SOCK is unset; setting it explicitly avoids a
|
|
# second round of X round-trips in tests that shell out repeatedly.
|
|
if [ -n "${DISPLAY:-}" ] && [ -z "${I3SOCK:-}" ] && command -v i3 >/dev/null 2>&1; then
|
|
# Bounded: this is an X round-trip, and after a hibernate resume the
|
|
# guest's virtio-gpu never completes a fence, so Xorg is wedged and an
|
|
# unbounded call hung every later `vm run` (measured 2026-10-01).
|
|
I3SOCK="$(timeout 2 i3 --get-socketpath 2>/dev/null || true)"
|
|
if [ -n "$I3SOCK" ]; then export I3SOCK; else unset I3SOCK; fi
|
|
fi
|