Files
stornic56 9a11ab8981 GNOME: use ptyxis instead of gnome-terminal on trixie+
gnome-core declares the OR-dependency "gnome-terminal (>= 3.56)
or gnome-console (>= 46) or ptyxis (>= 47)" (packages.debian.org
/trixie/gnome-core, verified 2026-10-16) and apt resolves an
unset OR-dep with the FIRST alternative, so the desktop pull would
install gnome-terminal by default. Listing the terminal package
explicitly in the same apt transaction steers the resolver to
ptyxis (48.5-1~deb13u1, GTK4) on trixie.

- _gnome_terminal_pkg(): trixie -> ptyxis, anything else or
  empty -> gnome-terminal (ptyxis does not exist in bookworm).
- _install_gnome_full/_install_gnome_core list the resolved
  package in the pre-apply summary and in the apt command.
- No purge or apt-mark: an already-installed gnome-terminal is
  left alone and both can coexist.
- 4 new BATS tests capture the apt command via the existing
  sudo/_run_cmd mocks: ptyxis on trixie (Full and Core),
  gnome-terminal fallback on bookworm and on empty codename.
2026-10-21 15:29:26 -05:00

109 lines
4.3 KiB
Bash

#!/usr/bin/env bash
# desktop_gnome.sh — GNOME desktop installer (SP2)
# Full: gnome + gdm3 | Core: gnome-core + gdm3
# Debian ships GNOME 48 (13), 43 (12) and 3.38 (11).
# License GPL v3
# Pick the terminal emulator for this release. gnome-core
# declares the OR-dependency "gnome-terminal (>= 3.56) or
# gnome-console (>= 46) or ptyxis (>= 47)" (packages.debian.org
# /trixie/gnome-core, verified 2026-10-16) and apt resolves an
# unset OR-dep with the FIRST alternative, so gnome-core alone
# would pull gnome-terminal. Listing ptyxis in the same apt
# transaction satisfies the OR-dep with ptyxis instead. ptyxis
# (GTK4) exists in trixie (48.5-1~deb13u1) but NOT in bookworm
# (packages.debian.org/bookworm/ptyxis → no such package), hence
# the trixie-only gate. An already-installed gnome-terminal is
# left alone: both can coexist; no purge is ever attempted.
_gnome_terminal_pkg() {
case "${DEBIAN_CODENAME:-}" in
trixie) printf '%s\n' "ptyxis" ;;
*) printf '%s\n' "gnome-terminal" ;;
esac
}
gnome_menu() {
while true; do
local -a gn_items=()
gn_items+=("1" "GNOME (Full Desktop)")
gn_items+=("2" "GNOME Core (Minimal Install)")
gn_items+=("3" "Back")
local choice
choice=$(_menu "GNOME" \
"Select an option:" $TUI_ALTO $TUI_ANCHO $TUI_ALTO_LISTA \
"${gn_items[@]}")
[ -z "$choice" ] && break
clear
case "$choice" in
1) _install_gnome_full ;;
2) _install_gnome_core ;;
3) break ;;
esac
done
}
_install_gnome_full() {
# Pre-apply summary: confirm the selection before any
# debconf or apt transaction starts. The terminal package
# is resolved once (ptyxis on trixie, gnome-terminal
# elsewhere) so the summary lists what apt will install.
local terminal_pkg
terminal_pkg=$(_gnome_terminal_pkg)
_confirm_install_list "GNOME Full Desktop" gnome gdm3 "$terminal_pkg" || return
echo -e "${GREEN}Installing GNOME (Full Desktop)...${NC}"
# Keep an already-configured display manager intact.
local target_dm="gdm3"
local keep_dm
keep_dm=$(_existing_display_manager)
if [ -n "$keep_dm" ] && [ "$keep_dm" != "gdm3" ]; then
echo -e "${YELLOW}Display manager '${keep_dm}' is already configured — keeping it as default.${NC}"
target_dm="$keep_dm"
fi
echo "${target_dm} shared/default-x-display-manager select ${target_dm}" | sudo debconf-set-selections
_ensure_apt_updated
_run_cmd "GNOME Full" "sudo apt install -y gnome gdm3 $terminal_pkg" \
"Installing GNOME (Full Meta Package) + GDM3..."
if [ "$target_dm" = "gdm3" ]; then
sudo systemctl enable gdm3
fi
# Selection confirmed once above; release the
# per-package prompt suppression.
_SELECTION_CONFIRMED=0
echo -e "${GREEN}GNOME installed. Default display manager: ${target_dm}.${NC}"
_offer_pipewire_after_desktop
}
_install_gnome_core() {
# Pre-apply summary: confirm the selection before any
# debconf or apt transaction starts. The terminal package
# is resolved once (ptyxis on trixie, gnome-terminal
# elsewhere) so the summary lists what apt will install.
local terminal_pkg
terminal_pkg=$(_gnome_terminal_pkg)
_confirm_install_list "GNOME Core" gnome-core gdm3 "$terminal_pkg" || return
echo -e "${GREEN}Installing GNOME Core (Minimal)...${NC}"
# Keep an already-configured display manager intact.
local target_dm="gdm3"
local keep_dm
keep_dm=$(_existing_display_manager)
if [ -n "$keep_dm" ] && [ "$keep_dm" != "gdm3" ]; then
echo -e "${YELLOW}Display manager '${keep_dm}' is already configured — keeping it as default.${NC}"
target_dm="$keep_dm"
fi
echo "${target_dm} shared/default-x-display-manager select ${target_dm}" | sudo debconf-set-selections
_ensure_apt_updated
_run_cmd "GNOME Core" "sudo apt install -y gnome-core gdm3 $terminal_pkg" \
"Installing GNOME Core (Minimal) + GDM3..."
if [ "$target_dm" = "gdm3" ]; then
sudo systemctl enable gdm3
fi
# Selection confirmed once above; release the
# per-package prompt suppression.
_SELECTION_CONFIRMED=0
echo -e "${GREEN}GNOME Core installed. Default display manager: ${target_dm}.${NC}"
_offer_pipewire_after_desktop
}