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https://github.com/stornic56/debianito-post-install.git
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stornic56
3f7535f5d0
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. Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
109 lines
4.3 KiB
Bash
109 lines
4.3 KiB
Bash
#!/usr/bin/env bash
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# desktop_gnome.sh — GNOME desktop installer (SP2)
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# Full: gnome + gdm3 | Core: gnome-core + gdm3
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# Debian ships GNOME 48 (13), 43 (12) and 3.38 (11).
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# License GPL v3
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# Pick the terminal emulator for this release. gnome-core
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# declares the OR-dependency "gnome-terminal (>= 3.56) or
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# gnome-console (>= 46) or ptyxis (>= 47)" (packages.debian.org
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# /trixie/gnome-core, verified 2026-10-16) and apt resolves an
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# unset OR-dep with the FIRST alternative, so gnome-core alone
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# would pull gnome-terminal. Listing ptyxis in the same apt
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# transaction satisfies the OR-dep with ptyxis instead. ptyxis
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# (GTK4) exists in trixie (48.5-1~deb13u1) but NOT in bookworm
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# (packages.debian.org/bookworm/ptyxis → no such package), hence
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# the trixie-only gate. An already-installed gnome-terminal is
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# left alone: both can coexist; no purge is ever attempted.
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_gnome_terminal_pkg() {
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case "${DEBIAN_CODENAME:-}" in
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trixie) printf '%s\n' "ptyxis" ;;
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*) printf '%s\n' "gnome-terminal" ;;
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esac
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}
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gnome_menu() {
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while true; do
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local -a gn_items=()
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gn_items+=("1" "GNOME (Full Desktop)")
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gn_items+=("2" "GNOME Core (Minimal Install)")
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gn_items+=("3" "Back")
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local choice
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choice=$(_menu "GNOME" \
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"Select an option:" $TUI_ALTO $TUI_ANCHO $TUI_ALTO_LISTA \
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"${gn_items[@]}")
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[ -z "$choice" ] && break
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clear
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case "$choice" in
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1) _install_gnome_full ;;
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2) _install_gnome_core ;;
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3) break ;;
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esac
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done
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}
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_install_gnome_full() {
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# Pre-apply summary: confirm the selection before any
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# debconf or apt transaction starts. The terminal package
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# is resolved once (ptyxis on trixie, gnome-terminal
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# elsewhere) so the summary lists what apt will install.
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local terminal_pkg
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terminal_pkg=$(_gnome_terminal_pkg)
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_confirm_install_list "GNOME Full Desktop" gnome gdm3 "$terminal_pkg" || return
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echo -e "${GREEN}Installing GNOME (Full Desktop)...${NC}"
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# Keep an already-configured display manager intact.
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local target_dm="gdm3"
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local keep_dm
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keep_dm=$(_existing_display_manager)
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if [ -n "$keep_dm" ] && [ "$keep_dm" != "gdm3" ]; then
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echo -e "${YELLOW}Display manager '${keep_dm}' is already configured — keeping it as default.${NC}"
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target_dm="$keep_dm"
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fi
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echo "${target_dm} shared/default-x-display-manager select ${target_dm}" | sudo debconf-set-selections
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_ensure_apt_updated
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_run_cmd "GNOME Full" "sudo apt install -y gnome gdm3 $terminal_pkg" \
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"Installing GNOME (Full Meta Package) + GDM3..."
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if [ "$target_dm" = "gdm3" ]; then
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sudo systemctl enable gdm3
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fi
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# Selection confirmed once above; release the
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# per-package prompt suppression.
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_SELECTION_CONFIRMED=0
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echo -e "${GREEN}GNOME installed. Default display manager: ${target_dm}.${NC}"
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_offer_pipewire_after_desktop
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}
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_install_gnome_core() {
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# Pre-apply summary: confirm the selection before any
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# debconf or apt transaction starts. The terminal package
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# is resolved once (ptyxis on trixie, gnome-terminal
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# elsewhere) so the summary lists what apt will install.
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local terminal_pkg
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terminal_pkg=$(_gnome_terminal_pkg)
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_confirm_install_list "GNOME Core" gnome-core gdm3 "$terminal_pkg" || return
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echo -e "${GREEN}Installing GNOME Core (Minimal)...${NC}"
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# Keep an already-configured display manager intact.
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local target_dm="gdm3"
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local keep_dm
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keep_dm=$(_existing_display_manager)
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if [ -n "$keep_dm" ] && [ "$keep_dm" != "gdm3" ]; then
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echo -e "${YELLOW}Display manager '${keep_dm}' is already configured — keeping it as default.${NC}"
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target_dm="$keep_dm"
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fi
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echo "${target_dm} shared/default-x-display-manager select ${target_dm}" | sudo debconf-set-selections
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_ensure_apt_updated
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_run_cmd "GNOME Core" "sudo apt install -y gnome-core gdm3 $terminal_pkg" \
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"Installing GNOME Core (Minimal) + GDM3..."
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if [ "$target_dm" = "gdm3" ]; then
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sudo systemctl enable gdm3
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fi
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# Selection confirmed once above; release the
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# per-package prompt suppression.
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_SELECTION_CONFIRMED=0
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echo -e "${GREEN}GNOME Core installed. Default display manager: ${target_dm}.${NC}"
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_offer_pipewire_after_desktop
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}
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