feat: adds sketchybar configuration

modules/home/sketchybar/default.nix

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+{ pkgs, ... }:
+{
+  home.packages = with pkgs; [
+    sketchybar
+    sketchybar-app-font
+    lua
+    readline
+    switchaudio-osx
+    nowplaying-cli
+    # sf-symbols
+    # font-sf-mono
+    # font-sf-pro
+  ];
+  home.file = {
+    ".config/sketchybar/sketchybarrc" = {
+      executable = true;
+      text = builtins.readFile ./sketchybarrc;
+    };
+    # PLUGINS
+    ".config/sketchybar/plugins/battery.sh" = {
+      executable = true;
+      text = builtins.readFile ./plugins/battery.sh;
+    };
+    ".config/sketchybar/plugins/clock.sh" = {
+      executable = true;
+      text = builtins.readFile ./plugins/clock.sh;
+    };
+    ".config/sketchybar/plugins/front_app.sh" = {
+      executable = true;
+      text = builtins.readFile ./plugins/front_app.sh;
+    };
+    ".config/sketchybar/plugins/memory.sh" = {
+      executable = true;
+      text = builtins.readFile ./plugins/memory.sh;
+    };
+    ".config/sketchybar/plugins/nowplaying.sh" = {
+      executable = true;
+      text = builtins.readFile ./plugins/nowplaying.sh;
+    };
+    ".config/sketchybar/plugins/space.sh" = {
+      executable = true;
+      text = builtins.readFile ./plugins/space.sh;
+    };
+    ".config/sketchybar/plugins/volume.sh" = {
+      executable = true;
+      text = builtins.readFile ./plugins/volume.sh;
+    };
+  };
+}

modules/home/sketchybar/plugins/battery.sh

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+#!/bin/bash
+
+PERCENTAGE="$(pmset -g batt | grep -Eo "...%" | awk '{print $1}')"
+CHARGING="$(pmset -g batt | grep 'AC Power')"
+
+# The item invoking this script (name $NAME) will get its icon and label
+# updated with the current battery status
+
+if [[ "$CHARGING" != "" ]]; then
+  STATE="CHAR:"
+else
+  STATE="BATT:"
+fi
+
+sketchybar --set "$NAME" label="$STATE $PERCENTAGE"

modules/home/sketchybar/plugins/clock.sh

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+#!/bin/sh
+
+# The $NAME variable is passed from sketchybar and holds the name of
+# the item invoking this script:
+# https://felixkratz.github.io/SketchyBar/config/events#events-and-scripting
+
+sketchybar --set "$NAME" label="$(date '+%Z'): $(date '+%H:%M')"

modules/home/sketchybar/plugins/front_app.sh

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+#!/bin/sh
+
+# Some events send additional information specific to the event in the $INFO
+# variable. E.g. the front_app_switched event sends the name of the newly
+# focused application in the $INFO variable:
+# https://felixkratz.github.io/SketchyBar/config/events#events-and-scripting
+
+if [ "$SENDER" = "front_app_switched" ]; then
+  sketchybar --set "$NAME" label="$INFO"
+fi

modules/home/sketchybar/plugins/memory.sh

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+#!/bin/bash
+
+hw_pagesize="$(sysctl -n hw.pagesize)"
+mem_total="$(($(sysctl -n hw.memsize) / 1024 / 1024))"
+mem_total_gb="$(($(sysctl -n hw.memsize) / 1024 / 1024 / 1024))"
+pages_app="$(($(sysctl -n vm.page_pageable_internal_count) - $(sysctl -n vm.page_purgeable_count)))"
+pages_wired="$(vm_stat | awk '/ wired/ { print $4 }')"
+pages_compressed="$(vm_stat | awk '/ occupied/ { printf $5 }')"
+pages_compressed="${pages_compressed:-0}"
+mem_used="$(((${pages_app} + ${pages_wired//./} + ${pages_compressed//./}) * hw_pagesize / 1024 / 1024))"
+mem_used_gb="$((${mem_used} / 1024))"
+
+sketchybar --set "$NAME" label="RAM: $mem_used_gb GiB/$mem_total_gb GiB"

modules/home/sketchybar/plugins/nowplaying.sh

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+#!/bin/sh
+
+sketchybar --set "$NAME" label="$(nowplaying-cli get title) - $(nowplaying-cli get artist)"

modules/home/sketchybar/plugins/space.sh

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+#!/bin/sh
+
+# The $SELECTED variable is available for space components and indicates if
+# the space invoking this script (with name: $NAME) is currently selected:
+# https://felixkratz.github.io/SketchyBar/config/components#space----associate-mission-control-spaces-with-an-item
+
+sketchybar --set "$NAME" background.drawing="$SELECTED"

modules/home/sketchybar/plugins/volume.sh

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+#!/bin/sh
+
+# The volume_change event supplies a $INFO variable in which the current volume
+# percentage is passed to the script.
+
+if [ "$SENDER" = "volume_change" ]; then
+  VOLUME="$INFO"
+
+  CURRENT="$(SwitchAudioSource -c)"
+
+  #case "$VOLUME" in
+  #[6-9][0-9] | 100)
+  #  ICON="󰕾"
+  #  ;;
+  #[3-5][0-9])
+  #  ICON="󰖀"
+  #  ;;
+  #[1-9] | [1-2][0-9])
+  #  ICON="󰕿"
+  #  ;;
+  #*) ICON="󰖁" ;;
+  #esac
+
+  # sketchybar --set "$NAME" icon="$ICON" label="$CURRENT: $VOLUME%"
+  sketchybar --set "$NAME" label="VOL: $CURRENT: $VOLUME%"
+fi

modules/home/sketchybar/sketchybarrc

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+# This is a demo config to showcase some of the most important commands.
+# It is meant to be changed and configured, as it is intentionally kept sparse.
+# For a (much) more advanced configuration example see my dotfiles:
+# https://github.com/FelixKratz/dotfiles
+
+PLUGIN_DIR="$CONFIG_DIR/plugins"
+
+##### Bar Appearance #####
+# Configuring the general appearance of the bar.
+# These are only some of the options available. For all options see:
+# https://felixkratz.github.io/SketchyBar/config/bar
+# If you are looking for other colors, see the color picker:
+# https://felixkratz.github.io/SketchyBar/config/tricks#color-picker
+
+sketchybar --bar position=top height=40 blur_radius=16 color=0x40000000
+
+##### Changing Defaults #####
+# We now change some default values, which are applied to all further items.
+# For a full list of all available item properties see:
+# https://felixkratz.github.io/SketchyBar/config/items
+
+default=(
+  padding_left=5
+  padding_right=5
+  icon.font="scientifica:regular:12.0"
+  label.font="scientifica:regular:12.0"
+  icon.color=0xffffffff
+  label.color=0xffffffff
+  icon.padding_left=4
+  icon.padding_right=4
+  label.padding_left=4
+  label.padding_right=4
+)
+sketchybar --default "${default[@]}"
+
+##### Adding Mission Control Space Indicators #####
+# Let's add some mission control spaces:
+# https://felixkratz.github.io/SketchyBar/config/components#space----associate-mission-control-spaces-with-an-item
+# to indicate active and available mission control spaces.
+
+SPACE_ICONS=("1" "2" "3" "4" "5" "6" "7" "8" "9" "10")
+for i in "${!SPACE_ICONS[@]}"
+do
+  sid="$(($i+1))"
+  space=(
+    space="$sid"
+    icon="${SPACE_ICONS[i]}"
+    icon.padding_left=7
+    icon.padding_right=7
+    background.color=0x40ffffff
+    background.corner_radius=5
+    background.height=25
+    label.drawing=off
+    script="$PLUGIN_DIR/space.sh"
+    click_script="yabai -m space --focus $sid"
+  )
+  sketchybar --add space space."$sid" left --set space."$sid" "${space[@]}"
+done
+
+##### Adding Left Items #####
+# We add some regular items to the left side of the bar, where
+# only the properties deviating from the current defaults need to be set
+
+sketchybar --add item nowplaying left \
+           --set nowplaying update_freq=2 script="$PLUGIN_DIR/nowplaying.sh" \
+           --add item chevron left \
+           --set chevron icon='' label.drawing=off \
+           --add item front_app left \
+           --set front_app icon.drawing=off script="$PLUGIN_DIR/front_app.sh" \
+           --subscribe front_app front_app_switched
+
+##### Adding Right Items #####
+# In the same way as the left items we can add items to the right side.
+# Additional position (e.g. center) are available, see:
+# https://felixkratz.github.io/SketchyBar/config/items#adding-items-to-sketchybar
+
+# Some items refresh on a fixed cycle, e.g. the clock runs its script once
+# every 10s. Other items respond to events they subscribe to, e.g. the
+# volume.sh script is only executed once an actual change in system audio
+# volume is registered. More info about the event system can be found here:
+# https://felixkratz.github.io/SketchyBar/config/events
+
+sketchybar --add item clock right \
+           --set clock update_freq=10 script="$PLUGIN_DIR/clock.sh" \
+           --add item battery right \
+           --set battery update_freq=120 script="$PLUGIN_DIR/battery.sh" \
+           --subscribe battery system_woke power_source_change \
+           --add item volume right \
+           --set volume script="$PLUGIN_DIR/volume.sh" \
+           --subscribe volume volume_change \
+           --add item memory right \
+           --set memory script="$PLUGIN_DIR/memory.sh" \
+           --set memory update_freq=120 \
+
+##### Force all scripts to run the first time (never do this in a script) #####
+sketchybar --update