Start the desktop after install by enabling the login screen and services

This commit is contained in:
2026-09-20 06:40:41 -04:00
parent f4dd3b7532
commit 8f124f47c2
17 changed files with 784 additions and 279 deletions
+71
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# BLOB_PATH is a symlink to this checkout rather than a copy, so bin/, shell/,
# themes/ and default/ are always the working tree. Every path the shell
# resolves as $BLOB_PATH/... therefore needs no install step at all.
link_blob_path() {
local current=""
[[ -L $blob_path ]] && current="$(readlink -f "$blob_path")"
if [[ $current == "$repo_dir" ]]; then
say "ok BLOB_PATH -> $repo_dir"
return 0
fi
if [[ -e $blob_path && ! -L $blob_path ]]; then
say "WARN $blob_path exists and is not a symlink; move it aside first"
note_change
return 0
fi
note_change
if [[ $check == true ]]; then
say "would link BLOB_PATH -> $repo_dir"
return 0
fi
ln -sfn "$repo_dir" "$blob_path"
say "link BLOB_PATH -> $repo_dir"
}
# config/ is the shipped-defaults directory. Everything in it is reachable as
# $BLOB_PATH/config/... so `blob-refresh-config` can reset a file, and most of it
# is also the right thing to deploy on a fresh install. Two subdirectories are
# reference-only and must not be copied into ~/.config:
#
# blob/ the shell defaults; copying them over ~/.config/blob/shell.json would
# replace the user's bar layout with the stock one
# hypr/ the stock Hyprland config; the personal hypr/ below is authoritative
# and is installed to the same place
install_shipped_config() {
local entry entry_name
install_tree "$repo_dir/hypr" "$config_dir/hypr" "hypr"
for entry in "$repo_dir"/config/*; do
entry_name="$(basename "$entry")"
[[ $entry_name == blob || $entry_name == hypr ]] && continue
if [[ -d $entry ]]; then
install_tree "$entry" "$config_dir/$entry_name" "config/$entry_name"
else
install_file "$entry" "$config_dir/$entry_name" "config/$entry_name"
fi
done
install_tree "$repo_dir/hooks" "$config_dir/blob/hooks" "hooks"
install_tree "$repo_dir/branding" "$config_dir/blob/branding" "branding"
install_file "$repo_dir/shell.json" "$config_dir/blob/shell.json" "shell.json"
install_file "$repo_dir/session/uwsm/default" "$config_dir/uwsm/default" "uwsm/default"
install_file "$repo_dir/session/uwsm/env.d/10-blob" "$config_dir/uwsm/env.d/10-blob" "uwsm/env.d/10-blob"
install_file "$repo_dir/fonts/omarchy.ttf" "$font_dir/omarchy.ttf" "fonts/omarchy.ttf"
}
install_zen_config() {
local profile
profile="$(find "$config_dir/zen" -maxdepth 1 -type d -name '*.Default (release)*' 2>/dev/null | head -1)"
if [[ -z $profile ]]; then
say "SKIP zen/userChrome.css (no Zen profile found)"
return 0
fi
install_file "$repo_dir/zen/userChrome.css" "$profile/chrome/userChrome.css" "zen/userChrome.css"
}
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directories=(
"$HOME/.config/blob/hooks"
"$HOME/.config/blob/extensions"
"$HOME/.config/blob/plugins"
"$HOME/.config/blob/themed"
"$HOME/.config/blob/themes"
"$HOME/.config/blob/branding"
"$HOME/.config/hypr"
"$HOME/.config/uwsm/env.d"
"$HOME/.config/systemd/user/app.slice.d"
"$HOME/.local/state/blob/toggles/hypr"
"$HOME/.local/state/blob/indicators"
"$HOME/.local/state/blob/notifications/history"
"$HOME/.local/state/blob/notifications/images"
"$HOME/.local/state/blob/backgrounds"
"$HOME/.local/state/blob/current"
"$HOME/.local/share/fonts"
"$HOME/.local/share/applications"
"$HOME/.local/share/icons/hicolor/256x256/apps"
"$HOME/wallpapers"
)
create_directories() {
local missing=()
local dir
for dir in "${directories[@]}"; do
[[ -d $dir ]] || missing+=("$dir")
done
if (( ${#missing[@]} == 0 )); then
say "ok directories"
return 0
fi
note_change
if [[ $check == true ]]; then
say "would create ${#missing[@]} directory(ies):"
printf ' %s\n' "${missing[@]}"
return 0
fi
mkdir -p "${missing[@]}"
say "mkdir ${#missing[@]} directory(ies)"
}
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session_entry_dir=/usr/local/share/wayland-sessions
greeter_compositor_config=/etc/sddm/hyprland-greeter.lua
# SDDM's stock Wayland greeter runs on weston, which Blob does not install.
# Point it at Hyprland with a greeter-only config instead.
install_login_config() {
install_root_file "$repo_dir/default/sddm/hyprland-greeter.lua" \
"$greeter_compositor_config" "sddm/hyprland-greeter.lua"
install_root_file "$repo_dir/default/sddm/10-blob.conf" \
/etc/sddm.conf.d/10-blob.conf "sddm.conf.d/10-blob.conf"
}
install_session_entry() {
install_root_file "$repo_dir/session/blob.desktop" \
"$session_entry_dir/blob.desktop" "wayland session entry"
}
install_autologin() {
if [[ $autologin == false ]]; then
return 0
fi
local generated
generated="$(mktemp)"
printf '[Autologin]\nUser=%s\nSession=blob.desktop\n' "$USER" >"$generated"
install_root_file "$generated" \
/etc/sddm.conf.d/99-blob-autologin.conf "sddm.conf.d/99-blob-autologin.conf"
rm -f "$generated"
}
# Enabling sddm is not enough on a machine installed without a display manager:
# its default target is multi-user.target, which never pulls in graphical.target.
enable_display_manager() {
if ! system_unit_exists sddm.service; then
say "WARN sddm.service not found; the desktop cannot start at boot"
return 0
fi
local enable_needed=false
case "$(system_unit_state sddm.service)" in
enabled | enabled-runtime) ;;
*) enable_needed=true ;;
esac
local default_target
default_target="$(systemctl get-default 2>/dev/null || true)"
local target_needed=false
[[ $default_target == graphical.target ]] || target_needed=true
if [[ $enable_needed == false && $target_needed == false ]]; then
say "ok display manager"
return 0
fi
note_change
if [[ $check == true ]]; then
[[ $enable_needed == true ]] && say "would enable sddm.service"
[[ $target_needed == true ]] && say "would set the default target to graphical.target"
return 0
fi
if [[ $enable_needed == true ]]; then
as_root systemctl enable sddm.service
say "enable sddm.service"
fi
if [[ $target_needed == true ]]; then
as_root systemctl set-default graphical.target
say "set default target to graphical.target"
fi
}
# The installer is usually run from a bare console on a fresh machine, where
# enabling the display manager alone leaves the user looking at a shell prompt.
launch_desktop() {
if [[ $check == true ]]; then
return 0
fi
if [[ $no_launch == true ]]; then
say "Run 'sudo systemctl start sddm' or reboot to reach the desktop."
return 0
fi
if ! system_unit_exists sddm.service; then
return 0
fi
if [[ -n ${WAYLAND_DISPLAY:-} || -n ${DISPLAY:-} ]]; then
say "Log out and pick the Blob session at the login screen."
return 0
fi
if systemctl is-active --quiet sddm.service; then
say "The login screen is already running."
return 0
fi
say "Starting the login screen. Pick the Blob session to log in."
as_root systemctl start sddm.service
}
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read_package_list() {
[[ -f $1 ]] || return 0
grep -vE '^[[:space:]]*#|^[[:space:]]*$' "$1"
}
# A list entry may be "wanted|already-fine", which asks for the first name but
# treats either as satisfying the requirement. That is how the AUR replacement
# for a package still shipped by another repository avoids a file conflict.
missing_packages() {
local entry wanted alternative
for entry in $(read_package_list "$1"); do
wanted=${entry%%|*}
alternative=${entry#*|}
pacman -Q "$wanted" &>/dev/null && continue
[[ $alternative != "$entry" ]] && pacman -Q "$alternative" &>/dev/null && continue
printf '%s\n' "$wanted"
done
}
install_packages() {
if [[ $skip_packages == true ]]; then
say "skip packages (--skip-packages)"
return 0
fi
local -a repo_missing aur_missing
mapfile -t repo_missing < <(missing_packages "$repo_dir/packages/blob.packages")
mapfile -t aur_missing < <(missing_packages "$repo_dir/packages/blob-aur.packages")
if (( ${#repo_missing[@]} == 0 && ${#aur_missing[@]} == 0 )); then
say "ok packages"
return 0
fi
note_change
if [[ $check == true ]]; then
(( ${#repo_missing[@]} )) && say "would install ${#repo_missing[@]} repo package(s): ${repo_missing[*]}"
(( ${#aur_missing[@]} )) && say "would install ${#aur_missing[@]} AUR package(s): ${aur_missing[*]}"
return 0
fi
blob_sudo_keepalive
if (( ${#repo_missing[@]} )); then
say "install ${#repo_missing[@]} repo package(s)"
as_root pacman -S --needed --noconfirm "${repo_missing[@]}"
fi
if (( ${#aur_missing[@]} )); then
ensure_aur_helper || {
say "WARN no AUR helper; skipping ${#aur_missing[@]} AUR package(s): ${aur_missing[*]}"
return 0
}
say "install ${#aur_missing[@]} AUR package(s)"
yay -S --needed --noconfirm "${aur_missing[@]}"
fi
}
# A fresh Arch install has no AUR helper, and yay is not in the official
# repositories, so it is built from the AUR once with makepkg. Everything after
# this point can then use yay normally.
ensure_aur_helper() {
command -v yay &>/dev/null && return 0
say "bootstrap yay from the AUR"
as_root pacman -S --needed --noconfirm base-devel git
local build_dir
build_dir="$(mktemp -d)"
if ! git clone --depth 1 https://aur.archlinux.org/yay-bin.git "$build_dir/yay-bin"; then
rm -rf "$build_dir"
return 1
fi
( cd "$build_dir/yay-bin" && makepkg -si --noconfirm ) || {
rm -rf "$build_dir"
return 1
}
rm -rf "$build_dir"
command -v yay &>/dev/null
}
blob_sudo_keepalive() {
sudo -v 2>/dev/null || true
}
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system_services=(
NetworkManager.service
systemd-resolved.service
bluetooth.service
cups.service
avahi-daemon.service
docker.socket
power-profiles-daemon.service
systemd-oomd.service
)
# network-online.target must not hold up graphical.target waiting for DHCP or
# Wi-Fi association. Nothing in the session blocks on the network.
masked_services=(
NetworkManager-wait-online.service
)
# blob-speaker-tuning.service is deliberately absent: blob-audio-tuning installs
# and enables it itself, only on machines with a tuning profile.
user_services=(
bt-agent.service
blob-sleep-lock.service
blob-fcitx5.service
blob-crash-watch.service
)
enable_system_services() {
local pending=()
local unit
for unit in "${system_services[@]}"; do
system_unit_exists "$unit" || continue
case "$(system_unit_state "$unit")" in
enabled | enabled-runtime | static | alias | indirect | masked) continue ;;
esac
pending+=("$unit")
done
if (( ${#pending[@]} == 0 )); then
say "ok system services"
return 0
fi
note_change
if [[ $check == true ]]; then
say "would enable ${#pending[@]} system service(s): ${pending[*]}"
return 0
fi
as_root systemctl enable "${pending[@]}"
say "enable ${#pending[@]} system service(s)"
}
mask_system_services() {
local pending=()
local unit
for unit in "${masked_services[@]}"; do
system_unit_exists "$unit" || continue
[[ "$(system_unit_state "$unit")" == masked ]] && continue
pending+=("$unit")
done
if (( ${#pending[@]} == 0 )); then
say "ok masked services"
return 0
fi
note_change
if [[ $check == true ]]; then
say "would mask ${#pending[@]} service(s): ${pending[*]}"
return 0
fi
as_root systemctl mask "${pending[@]}"
say "mask ${#pending[@]} service(s)"
}
install_systemd_dropins() {
local systemd_dir="$repo_dir/default/systemd"
install_root_file "$systemd_dir/faster-shutdown.conf" \
/etc/systemd/system.conf.d/10-blob.conf "systemd/system.conf.d/10-blob.conf"
install_root_file "$systemd_dir/user@.service.d/faster-shutdown.conf" \
/etc/systemd/system/user@.service.d/10-blob.conf "systemd/user@.service.d/10-blob.conf"
install_root_file "$systemd_dir/oomd.conf.d/10-blob.conf" \
/etc/systemd/oomd.conf.d/10-blob.conf "systemd/oomd.conf.d/10-blob.conf"
install_root_file "$systemd_dir/system-sleep/keyboard-backlight" \
/etc/systemd/system-sleep/keyboard-backlight "systemd/system-sleep/keyboard-backlight" 0755
install_root_file "$systemd_dir/system-sleep/unmount-fuse" \
/etc/systemd/system-sleep/unmount-fuse "systemd/system-sleep/unmount-fuse" 0755
if system_unit_exists plocate-updatedb.service; then
install_root_file "$systemd_dir/system/plocate-updatedb.service.d/10-blob.conf" \
/etc/systemd/system/plocate-updatedb.service.d/10-blob.conf \
"systemd/plocate-updatedb.service.d/10-blob.conf"
else
say "SKIP systemd/plocate-updatedb.service.d/10-blob.conf (plocate not installed)"
fi
}
install_user_units() {
local unit
for unit in "${user_services[@]}"; do
install_file "$repo_dir/default/systemd/user/$unit" \
"$config_dir/systemd/user/$unit" "systemd/user/$unit"
done
install_file "$repo_dir/default/systemd/user/app.slice.d/10-oomd.conf" \
"$config_dir/systemd/user/app.slice.d/10-oomd.conf" "systemd/user/app.slice.d/10-oomd.conf"
}
# Enable only. The units are all WantedBy=graphical-session.target, so they come
# up with the session rather than from a TTY where their conditions cannot pass.
enable_user_units() {
local pending=()
local unit
if ! user_manager_available; then
say "WARN no user systemd manager; skipping user services"
return 0
fi
for unit in "${user_services[@]}"; do
[[ "$(user_unit_state "$unit")" == enabled ]] && continue
pending+=("$unit")
done
if (( ${#pending[@]} == 0 )); then
say "ok user services"
return 0
fi
note_change
if [[ $check == true ]]; then
say "would enable ${#pending[@]} user service(s): ${pending[*]}"
return 0
fi
systemctl --user daemon-reload
systemctl --user enable "${pending[@]}"
say "enable ${#pending[@]} user service(s)"
}