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#!/bin/bash
# Install waybar-theme-udt by symlink, so the repo stays canonical.
# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
# Licensed under the GNU General Public License v2 only.
#
# Installs to ~/.config/waybar-udt/, which is a separate config directory from
# the stock ~/.config/waybar/: that one is left on disk untouched, so its
# modules and scripts stay available to go back to.
#
# Nothing is started here. Hyprland launches the bar on login from
# ~/.config/hypr/sections/autostart.lua; the command is printed at the end for
# starting it by hand.
set -euo pipefail
repo="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
target="$HOME/.config/waybar-udt"
udt="$(cd "$repo/../unified-desktop-theme" 2>/dev/null && pwd || true)"
icons="$HOME/.local/share/icons/Material-Black-Plum-Suru"
mkdir -p "$target/modules/hyprland" "$target/modules/custom" \
"$target/modules/extras" "$target/modules/image" \
"$target/styles" "$HOME/bin"
# ---------------------------------------------------------------- colours --
# The palette is udt's, not this repo's. Generating it needs the sibling
# checkout, so a missing one is a clear failure rather than a bar with no
# colours: every stylesheet below names @main-bg and friends.
if [ -z "$udt" ]; then
echo "error: unified-desktop-theme not found next to this repo" >&2
echo " expected at $repo/../unified-desktop-theme" >&2
exit 1
fi
# udt's install.sh calls this script, and it has already run udt-palette by
# then. Running it again would be harmless but pointless, so it says so.
if [ "${UDT_PALETTE_DONE:-}" != "1" ]; then
"$udt/bin/udt-palette"
fi
install -Dm644 "$udt/templates/waybar/theme.css" "$target/styles/theme.css"
# The dot scripts are bash, not CSS, so they cannot read @define-color. Write
# the handful of colours they need as a shell fragment they source.
#
# The values are read back out of the stylesheet udt-palette just generated,
# because that is the only place they exist in a form this script can see:
# udt-palette renders files, it does not answer queries about single roles.
#
# Pango wants a colour it can parse, and the generated file mixes #rrggbb with
# rgb()/rgba() spellings, so each is normalised to hex on the way out.
scheme="$(sed -n 's/^scheme *= *//p' "$HOME/.config/udt/roles.conf")"
css_color() {
# Last definition wins, matching how GTK resolves a redefined colour.
sed -n "s/^@define-color $1 *\(.*\);\$/\1/p" "$target/styles/theme.css" | tail -1
}
to_hex() {
python3 -c '
import re, sys
v = sys.argv[1].strip()
m = re.match(r"rgba?\(([^)]*)\)", v)
if m:
p = [x.strip() for x in m.group(1).split(",")]
print("#%02x%02x%02x" % tuple(int(float(c)) for c in p[:3]))
else:
print(v)
' "$2"
}
{
echo "# Generated by waybar-theme-udt/install.sh from the $scheme scheme."
echo "# Sourced by vms_dots.sh and privacy_dots.sh. Do not edit."
# The generated stylesheet carries no success/info roles, so the dots use
# the palette names it does define. green/teal/mauve are role-resolved by
# udt-palette, so they still follow the scheme.
for pair in "SUCCESS:green" "WARNING:warning" "CRITICAL:critical" \
"INFO:teal" "ACCENT:mauve" "FAINT:overlay0"; do
var="${pair%%:*}"
raw="$(css_color "${pair##*:}")"
[ -n "$raw" ] && printf 'DOT_%s="%s"\n' "$var" "$(to_hex "$var" "$raw")"
done
} > "$target/dots.colors"
# ------------------------------------------------------------------ files --
# Config and modules are symlinked: this repo owns them outright, so linking
# means the installed bar cannot drift from what is committed.
#
# Links whose source has gone are pruned first. Linking alone never removes
# anything, so a module renamed or dropped in the repo would otherwise leave a
# dangling link behind for every later install to step over.
find "$target" -xtype l -delete 2>/dev/null || true
ln -sfn "$repo/config.jsonc" "$target/config.jsonc"
for f in modules/clock.jsonc \
modules/hyprland/workspaces.jsonc \
modules/custom/vmdot.jsonc modules/custom/privacy_dots.jsonc \
modules/custom/presentation.jsonc modules/custom/mail.jsonc \
modules/custom/launcher.jsonc \
modules/extras/taskbar.jsonc modules/extras/tray.jsonc \
modules/image/volume.jsonc modules/image/language.jsonc; do
ln -sfn "$repo/$f" "$target/$f"
done
for f in style.css fonts.css global.css pills.css; do
ln -sfn "$repo/styles/$f" "$target/styles/$f"
done
# modules.css is generated rather than linked: it carries the icon theme's
# absolute path, which cannot be committed, and the accent-tinted launcher.
sed -e "s|@ICONS@|$icons|g" -e "s|@CONFIG@|$target|g" \
"$repo/styles/modules.css" > "$target/styles/modules.css"
# The launcher module carries no generated path any more: its mark is a CSS
# background, so modules.css owns the paths and the module file is a plain
# symlink like every other.
# The flags ship as they are; the Slackware mark is monochrome, so it is
# tinted here, twice. The pill inverts on hover, so the mark has to invert
# with it: dark on the accent pill at rest, light on the dark pill hovered.
# One mark and one pill colour would always collide in one of the two states,
# which is exactly what shipped twice before this.
mark_dark="$(sed -n 's/^@define-color main-bg *\(.*\);$/\1/p' "$target/styles/theme.css" | head -1)"
mark_light="$(sed -n 's/^@define-color main-fg *\(.*\);$/\1/p' "$target/styles/theme.css" | head -1)"
mark_dark="${mark_dark:-#24273a}"
mark_light="${mark_light:-#cad3f5}"
sed "s|@ACCENT@|$mark_dark|" "$repo/icons/slackware.svg" > "$target/slackware.svg"
sed "s|@MARK_LIGHT@|$mark_light|" "$repo/icons/slackware-light.svg" > "$target/slackware-light.svg"
install -Dm644 "$repo/icons/flag-it.svg" "$target/flag-it.svg"
install -Dm644 "$repo/icons/burger.svg" "$target/burger.svg"
# Files an earlier install generated that nothing references any more. The
# prune above only clears dangling SYMLINKS, and these were written as real
# files, so nothing else removes them: the UK flag the hamburger replaced, and
# the launcher from when it was an image module.
rm -f "$target/flag-gb.svg" "$target/modules/image/launcher.jsonc"
# ---------------------------------------------------------------- scripts --
# The two dot scripts used to live only in ~/bin, in no repository at all.
# They are this repo's now, and ~/bin gets links. Any real file found there is
# kept: it is the only copy of whatever was running before.
for s in vms_dots.sh privacy_dots.sh; do
if [ -f "$HOME/bin/$s" ] && [ ! -L "$HOME/bin/$s" ]; then
mv "$HOME/bin/$s" "$HOME/bin/$s.pre-udt"
echo "kept your $s as ~/bin/$s.pre-udt"
fi
ln -sfn "$repo/bin/$s" "$HOME/bin/$s"
done
ln -sfn "$repo/bin/wb-icon" "$HOME/bin/wb-icon"
ln -sfn "$repo/bin/wb-lang" "$HOME/bin/wb-lang"
# ----------------------------------------------------------------- checks --
# A missing icon renders as an empty pill and nothing says why, so the names
# are checked here, while someone is watching.
"$repo/bin/wb-icon" --selftest
echo
echo "installed to $target"
echo "run it with: waybar -c $target/config.jsonc -s $target/styles/style.css"
echo "hyprland starts it on login; see ~/.config/hypr/sections/autostart.lua"
|
