192 lines
8.0 KiB
Bash
192 lines
8.0 KiB
Bash
#!/bin/bash
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# plymouth.sh — Plymouth boot splash installer
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#
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# Installs the M-Archy Plymouth theme: skull logo centred on a dark background
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# with a magenta spinning-dot animation below it.
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#
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# SVG NOTE: Plymouth's image loader (ply-image) is PNG-only — it links against
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# libpng and has no SVG or gdk-pixbuf dependency. The ply-image.h header is
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# even commented "png file loader". bg-skull.svg must be converted to PNG with
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# rsvg-convert (higher fidelity than ImageMagick for SVG) before deployment.
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#
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# Logo resolution order (no user intervention required):
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# 1. $DOTFILES_DIR/resources/bg-skull.svg — repo copy, always present
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# 2. /root/installer/resources/bg-skull.svg — archiso embedded copy
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#
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# Steps:
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# 1. Install plymouth (extra repo)
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# 2. Install librsvg (rsvg-convert) + imagemagick if absent
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# 3. Convert bg-skull.svg → logo.png (300 px wide)
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# 4. Generate a 10×10 magenta dot.png for the spinner
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# 5. Write the m-archy theme (.plymouth descriptor + .script animation)
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# 6. Register with plymouth-set-default-theme
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# 7. Inject plymouth / sd-plymouth hook into /etc/mkinitcpio.conf
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# 8. Add 'quiet splash' to GRUB_CMDLINE_LINUX_DEFAULT
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# 9. Regenerate GRUB config and initramfs
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set -euo pipefail
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source "$(dirname "${BASH_SOURCE[0]}")/../lib/logging.sh"
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THEME_DIR="/usr/share/plymouth/themes/m-archy"
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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DOTFILES_DIR="$(cd "$SCRIPT_DIR/../../.." && pwd)"
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# Resolve logo SVG — repo copy first, ISO embedded copy as fallback
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LOGO_SVG=""
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for _candidate in \
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"$DOTFILES_DIR/resources/bg-skull.svg" \
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"/root/installer/resources/bg-skull.svg"
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do
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if [[ -f "$_candidate" ]]; then
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LOGO_SVG="$_candidate"
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break
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fi
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done
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# ── Install Plymouth ──────────────────────────────────────────────────────────
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log "Installing Plymouth..."
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sudo pacman -S --noconfirm --needed plymouth
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# ── Ensure conversion tools ───────────────────────────────────────────────────
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# Plymouth only loads PNG (libpng); rsvg-convert gives the best SVG→PNG output.
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if ! command -v rsvg-convert &>/dev/null; then
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log "Installing librsvg (rsvg-convert) for SVG→PNG conversion..."
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sudo pacman -S --noconfirm --needed librsvg
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fi
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if ! command -v convert &>/dev/null; then
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log "Installing imagemagick (dot generation)..."
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sudo pacman -S --noconfirm --needed imagemagick
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fi
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# ── Convert logo SVG → PNG ────────────────────────────────────────────────────
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TMP_LOGO="$(mktemp /tmp/plymouth-logo.XXXXXX.png)"
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TMP_DOT="/tmp/plymouth-dot.png"
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trap 'rm -f "$TMP_LOGO" "$TMP_DOT"' EXIT
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if [[ -n "$LOGO_SVG" ]]; then
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log "Converting $LOGO_SVG → PNG (300 px wide)..."
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rsvg-convert -w 300 "$LOGO_SVG" -o "$TMP_LOGO"
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else
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warn "bg-skull.svg not found in repo resources or ISO — using transparent placeholder."
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convert -size 300x300 xc:transparent "$TMP_LOGO"
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fi
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# ── Generate spinner dot ──────────────────────────────────────────────────────
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# 10×10 magenta circle — centred at (5,5), radius 4 px
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convert -size 10x10 xc:transparent \
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-fill '#E40046' \
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-draw 'circle 5,5 5,1' \
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"$TMP_DOT"
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# ── Install theme files ───────────────────────────────────────────────────────
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log "Installing M-Archy Plymouth theme..."
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sudo mkdir -p "$THEME_DIR"
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sudo cp "$TMP_LOGO" "$THEME_DIR/logo.png"
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sudo cp "$TMP_DOT" "$THEME_DIR/dot.png"
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sudo tee "$THEME_DIR/m-archy.plymouth" > /dev/null <<'EOF'
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[Plymouth Theme]
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Name=M-Archy
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Description=M-Archy boot splash — skull logo with spinning dots
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ModuleName=script
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[script]
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ImageDir=/usr/share/plymouth/themes/m-archy
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ScriptFile=/usr/share/plymouth/themes/m-archy/m-archy.script
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EOF
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sudo tee "$THEME_DIR/m-archy.script" > /dev/null <<'EOF'
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# M-Archy Plymouth splash — skull logo + magenta spinner
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Window.SetBackgroundTopColor (0.10, 0.10, 0.10);
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Window.SetBackgroundBottomColor (0.07, 0.07, 0.07);
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screen_width = Window.GetWidth ();
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screen_height = Window.GetHeight ();
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# Centred skull logo
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logo.image = Image ("logo.png");
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logo.sprite = Sprite (logo.image);
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logo.sprite.SetX (Math.Int (screen_width / 2 - logo.image.GetWidth () / 2));
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logo.sprite.SetY (Math.Int (screen_height / 2 - logo.image.GetHeight () / 2));
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logo.sprite.SetZ (10);
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# 12-dot spinner below the logo
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num_dots = 12;
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dot_r = 5;
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orbit = 35;
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cx = screen_width / 2;
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cy = screen_height / 2 + logo.image.GetHeight () / 2 + 55;
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dot.image = Image ("dot.png");
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for (i = 0; i < num_dots; i++) {
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dot[i].sprite = Sprite (dot.image);
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dot[i].sprite.SetZ (20);
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}
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frame = 0;
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fun refresh_callback () {
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frame++;
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step = 2 * Math.Pi / num_dots;
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for (i = 0; i < num_dots; i++) {
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angle = step * i + frame * 0.15;
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dot[i].sprite.SetX (Math.Int (cx + Math.Cos (angle) * orbit - dot_r));
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dot[i].sprite.SetY (Math.Int (cy + Math.Sin (angle) * orbit - dot_r));
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t = (i + Math.Int (frame / 4) % num_dots) % num_dots;
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f = t / num_dots;
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dot[i].sprite.SetOpacity (0.15 + 0.85 * f * f);
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}
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}
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Plymouth.SetRefreshFunction (refresh_callback);
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EOF
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# ── Register theme ────────────────────────────────────────────────────────────
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log "Registering m-archy as default Plymouth theme..."
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sudo plymouth-set-default-theme m-archy
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# ── mkinitcpio: inject Plymouth hook ─────────────────────────────────────────
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log "Adding Plymouth hook to /etc/mkinitcpio.conf..."
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if grep -q '\bplymouth\b\|sd-plymouth' /etc/mkinitcpio.conf; then
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skip "Plymouth hook already present in mkinitcpio.conf"
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else
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# systemd hook → sd-plymouth goes after systemd
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# traditional udev hook → plymouth goes after udev
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if grep -qE 'HOOKS=\([^)]*\bsystemd\b' /etc/mkinitcpio.conf; then
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sudo sed -Ei 's/(\bsystemd\b)( |\))/\1 sd-plymouth\2/' /etc/mkinitcpio.conf
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log "Injected sd-plymouth hook after systemd"
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else
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sudo sed -Ei 's/(\budev\b)( |\))/\1 plymouth\2/' /etc/mkinitcpio.conf
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log "Injected plymouth hook after udev"
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fi
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if ! grep -q '\bplymouth\b\|sd-plymouth' /etc/mkinitcpio.conf; then
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warn "Could not auto-inject Plymouth hook."
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warn "Manually add 'plymouth' after 'udev' in /etc/mkinitcpio.conf."
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fi
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fi
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# ── GRUB: add quiet splash ────────────────────────────────────────────────────
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GRUB_CONF="/etc/default/grub"
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if [[ -f "$GRUB_CONF" ]]; then
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if grep -q '\bsplash\b' "$GRUB_CONF"; then
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skip "'splash' already present in $GRUB_CONF"
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else
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log "Adding 'quiet splash' to GRUB_CMDLINE_LINUX_DEFAULT..."
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sudo sed -i 's/^GRUB_CMDLINE_LINUX_DEFAULT="\(.*\)"/GRUB_CMDLINE_LINUX_DEFAULT="\1 quiet splash"/' "$GRUB_CONF"
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sudo sed -i 's/quiet quiet/quiet/g' "$GRUB_CONF"
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fi
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log "Regenerating GRUB config..."
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sudo grub-mkconfig -o /boot/grub/grub.cfg
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else
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warn "/etc/default/grub not found."
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warn "If using systemd-boot, add 'quiet splash' to your loader entry manually."
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fi
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# ── Rebuild initramfs ─────────────────────────────────────────────────────────
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log "Rebuilding initramfs (this bakes the theme into the initrd)..."
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sudo mkinitcpio -P
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log "Plymouth m-archy theme installed. Reboot to see the splash screen."
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