Add themeswitch script

scripts/toggle-light-dark.sh

@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+# Toggle light- or dark-mode for your applications
+# Usage: toggle [-m light|dark]
+
+#################
+### Variables ###
+#################
+
+THEME_LIGHT='tdpeuter-light'
+THEME_DARK='tdpeuter-dark'
+THEME_DEFAULT="${THEME_LIGHT}"
+
+STATE_FILE="${HOME}/.local/state/sisyphus/theme"
+
+declare -A theme_next
+theme_next[${THEME_LIGHT}]="${THEME_DARK}"
+theme_next[${THEME_DARK}]="${THEME_LIGHT}"
+
+declare -A gsettings_alt
+gsettings_alt[${THEME_LIGHT}]='default'
+gsettings_alt[${THEME_DARK}]='prefer-dark'
+
+#############
+### Logic ###
+#############
+
+# Parse options
+while getopts ":m:" option; do
+    case "${option}" in
+        m)
+            if [ "${OPTARG}" == 'light' ]; then
+                theme="${THEME_LIGHT}"
+            elif [ "${OPTARG}" == 'dark' ]; then
+                theme="${THEME_DARK}"
+            else
+                >&2 printf "Error: Invalid mode: '%s'.\nShould be either 'light' or 'dark'\n" "${option}"
+                exit 1
+            fi
+            ;;
+        *)
+            >&2 printf "Error: Invalid option: '%s'.\n" "${option}"
+            exit 1
+            ;;
+    esac
+done
+shift $(( OPTIND - 1 ))
+
+# Check if the state file exists
+if ! [ -d "$(dirname ${STATE_FILE})" ]; then
+    mkdir -p "$(dirname ${STATE_FILE})"
+fi
+
+# Choose next theme
+previous_theme="$(cat ${STATE_FILE})"
+if ! [[ -z "${previous_theme}" || "${theme}" ]]; then
+    theme="${theme_next[${previous_theme}]}"
+fi
+echo "${theme:=${THEME_DEFAULT}}" > "${STATE_FILE}"
+
+######################
+### Set all themes ###
+######################
+
+# GNOME
+if [ "$(command -v gsettings)" ]; then
+    gsettings set org.gnome.desktop.interface color-scheme "${gsettings_alt[${theme}]}"
+fi
+
+# Kitty
+if [ "$(command -v kitty)" ]; then
+    kitten themes --config-file-name theme.conf "${theme}"
+fi
+
+# Vim
+# This does not reload the config, but will use it when you restart vim
+# Toggle an existing window using `:colorscheme ${theme}`
+if [ "$(command -v vim)" ]; then
+    echo "colorscheme ${theme}" > ~/.vim/theme.conf
+fi
+