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fix(install): detect desktops by their metapackages, not name prefixes

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The Lite check matched any installed package starting with gnome/kde/
xfce/lxde, so standalone parts (gnome-keyring, xfce4-terminal,
lxde-icon-theme) rejected a Lite system. Match whole names of desktop
metapackages and session managers instead.

Also catch desktops the prefixes missed: Raspberry Pi OS Trixie replaced
raspberrypi-ui-mods with rpd-wayland-core / rpd-x-core, Debian tasksel
desktops (task-*-desktop), and multi-arch names (plasma-workspace:arm64).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VZNWFWprcFYGfuf1JAyrBJ
This commit is contained in:
Claude
2026-10-06 12:53:23 +00:00
parent 6c533d62af
commit 4411bb5760
1 changed files with 9 additions and 4 deletions
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first_time_install.sh
+9 -4
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@@ -91,11 +91,16 @@ if [ -r "$LM_OS_RELEASE_FILE" ]; then
DESKTOP_DETECTED=0
# grep without -q: -q exits at the first match, dpkg then dies of SIGPIPE,
# and pipefail turns a found desktop into "not found".
# Match installed package names from their start: the unanchored ".*kde"
# matched mid-word (libblockdev-* = "bloc-kde-v") on Lite, and `dpkg -l`
# lines also carry descriptions that could match.
# Desktop metapackages and session managers, matched as whole installed
# package names: an unanchored ".*kde" matched libblockdev-* ("bloc-kde-v"),
# and a "gnome" prefix matched standalone parts such as gnome-keyring.
# Trixie replaced raspberrypi-ui-mods with the rpd-*-core metapackages.
DESKTOP_PACKAGES='raspberrypi-ui-mods|rpd-wayland-core|rpd-x-core'
DESKTOP_PACKAGES+='|lxde|lxde-core|lxsession|xfce4|xfce4-session'
DESKTOP_PACKAGES+='|gnome-shell|gnome-session|kde-plasma-desktop|plasma-desktop'
DESKTOP_PACKAGES+='|plasma-workspace|task-desktop|task-[a-z0-9]+-desktop'
if dpkg-query -W -f='${db:Status-Abbrev} ${binary:Package}\n' 2>/dev/null \
| grep -E "^ii +(raspberrypi-ui-mods|lxde|xfce|gnome|kde)" >/dev/null; then
| grep -E "^ii +(${DESKTOP_PACKAGES})(:[a-z0-9]+)?$" >/dev/null; then
DESKTOP_DETECTED=1
fi
if systemctl list-units --type=service --state=running 2>/dev/null | grep -qE "lightdm|gdm3|sddm|lxdm"; then