mirror of
https://github.com/theupriser/steamify-cachyos.git
synced 2026-10-14 15:44:47 +02:00
67 lines
3.2 KiB
Bash
67 lines
3.2 KiB
Bash
#!/bin/bash
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# steam-set-session with GDM support (Steamify prototype). CachyOS's own only
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# knows plasma-login-manager and SDDM and quietly does nothing on GDM. GDM
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# has no autologin fragment: it takes the user's session from
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# AccountsService, so that is where the session goes.
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set -e
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DM_ID="$(systemctl show -p Id --value display-manager)"
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DM_ID="${DM_ID%.service}"
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SESSION="${1:-gamescope-session.desktop}"
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# "desktop" is the desktop to go back to: the one chosen in Steamify (/etc/steamify/desktop: kde, gnome or last),
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# else the one used last (recorded below when leaving it for gamescope), else whichever is installed.
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have_session() { [[ -f "/usr/share/wayland-sessions/$1" || -f "/usr/share/xsessions/$1" ]]; }
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resolve_desktop() {
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local pref last
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pref="$(cat /etc/steamify/desktop 2>/dev/null || true)"
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last="$(cat /var/lib/steamify/last-desktop 2>/dev/null || true)"
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[[ -z "$pref" || "$pref" == last ]] && pref="$last"
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case "$pref" in
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gnome) have_session gnome.desktop && { echo gnome.desktop; return; } ;;
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kde) have_session plasma.desktop && { echo plasma.desktop; return; } ;;
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esac
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have_session plasma.desktop && { echo plasma.desktop; return; }
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echo gnome.desktop
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}
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remember_desktop() {
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# Leaving a desktop for gamescope: which desktop it was, from the shell the user is running.
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local uid="${PKEXEC_UID:-}" kind
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[[ -n "$uid" ]] || return 0
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if pgrep -u "$uid" -x gnome-shell >/dev/null; then kind=gnome
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elif pgrep -u "$uid" -x plasmashell >/dev/null; then kind=kde
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else return 0; fi
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mkdir -p /var/lib/steamify && echo "$kind" > /var/lib/steamify/last-desktop
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}
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[[ "$SESSION" == desktop ]] && SESSION="$(resolve_desktop)"
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[[ "$SESSION" == gamescope-session* ]] && remember_desktop
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case "$DM_ID" in
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plasmalogin) CONF_FILE="/etc/plasmalogin.conf.d/zz-steamos-autologin.conf" ;;
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sddm) CONF_FILE="/etc/sddm.conf.d/zz-steamos-autologin.conf" ;;
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gdm)
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if [[ -n "${PKEXEC_UID:-}" ]]; then TARGET_USER="$(id -un "$PKEXEC_UID")"
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else TARGET_USER="${SUDO_USER:-}"; fi
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# (|| true: logname fails without a login, and set -e would end the script before the fallback.)
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[[ -n "$TARGET_USER" ]] || TARGET_USER="$(logname 2>/dev/null || true)"
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# At boot (steamify-boot-desktop.service) nobody is logged in: the autologin user.
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[[ -n "$TARGET_USER" ]] || TARGET_USER="$(sed -n 's/^AutomaticLogin=//p' /etc/gdm/custom.conf 2>/dev/null)"
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[[ -n "$TARGET_USER" ]] || exit 0
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ACCOUNT="/var/lib/AccountsService/users/$TARGET_USER"
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SESSION_ID="${SESSION%.desktop}"
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mkdir -p /var/lib/AccountsService/users
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touch "$ACCOUNT"
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grep -q '^\[User\]' "$ACCOUNT" || echo "[User]" >> "$ACCOUNT"
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for key in Session XSession; do
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if grep -q "^$key=" "$ACCOUNT"; then sed -i "s|^$key=.*|$key=$SESSION_ID|" "$ACCOUNT"
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else sed -i "/^\[User\]/a $key=$SESSION_ID" "$ACCOUNT"; fi
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done
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systemctl restart accounts-daemon 2>/dev/null || true
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exit 0 ;;
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esac
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# Any other login manager: nothing to do.
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[[ -n "${CONF_FILE:-}" ]] || exit 0
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mkdir -p "$(dirname "$CONF_FILE")"
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printf '[Autologin]\nSession=%s\n' "$SESSION" > "$CONF_FILE"
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