Initial commit

change-wallpaper.fish

@@ -0,0 +1,104 @@
+#!/bin/fish
+
+set script_name (basename (status filename))
+set wallpapers_dir (xdg-user-dir PICTURES)/Wallpapers/
+set threshold 80
+
+# Max 0 non-option args | h, f and d are exclusive | F and t are also exclusive
+argparse -n 'caelestia-wallpaper' -X 0 -x 'h,f,d' -x 'F,t' \
+    'h/help' \
+    'f/file=!test -f "$_flag_value"' \
+    'd/directory=!test -d "$_flag_value"' \
+    'F/no-filter' \
+    't/threshold=!_validate_int --min 0' \
+    -- $argv
+or exit
+
+. (dirname (status filename))/util.fish
+
+if set -q _flag_h
+    echo 'Usage:'
+    echo '    caelestia wallpaper'
+    echo '    caelestia wallpaper [ -h | --help ]'
+    echo '    caelestia wallpaper [ -f | --file ]'
+    echo '    caelestia wallpaper [ -d | --directory ] [ -F | --no-filter ]'
+    echo '    caelestia wallpaper [ -d | --directory ] [ -t | --threshold ]'
+    echo
+    echo 'Options:'
+    echo '    -h, --help                    Print this help message and exit'
+    echo '    -f, --file <file>             The file to change wallpaper to'
+    echo '    -d, --directory <directory>   The folder to select a random wallpaper from (default '$wallpapers_dir')'
+    echo '    -F, --no-filter               Do not filter by size'
+    echo '    -t, --threshold <threshold>   The minimum percentage of the size the image must be greater than to be selected (default '$threshold')'
+else
+    set -q XDG_CACHE_HOME && set cache_dir $XDG_CACHE_HOME/caelestia/wallpaper || set cache_dir ~/.cache/caelestia/wallpaper
+
+    # The path to the last chosen wallpaper
+    set last_wallpaper_path "$cache_dir/last.txt"
+
+    # Use wallpaper given as argument else choose random
+    if set -q _flag_f
+        set chosen_wallpaper "$(cd $(dirname $_flag_f) && pwd)/$(basename $_flag_f)"
+
+        # Set last wallpaper if not same as given
+        if [ -f "$last_wallpaper_path" ]
+            set last_wallpaper (cat $last_wallpaper_path)
+            [ -z "$last_wallpaper" -o "$last_wallpaper" = "$chosen_wallpaper" ] && set -e last_wallpaper
+        end
+    else
+        # The path to the directory containing the selection of wallpapers
+        set -q _flag_d && set wallpapers_dir $_flag_d
+
+        # Get all files in $wallpapers_dir and exclude the last wallpaper (if it exists)
+        if [ -f "$last_wallpaper_path" ]
+            set last_wallpaper (cat $last_wallpaper_path)
+            [ -n "$last_wallpaper" ] && set unfiltered_wallpapers (find $wallpapers_dir -type f | grep -v $last_wallpaper)
+        end
+        set -q unfiltered_wallpapers || set unfiltered_wallpapers (find $wallpapers_dir -type f)
+
+        # Filter by resolution if no filter option is not given
+        if set -q _flag_F
+            set wallpapers $unfiltered_wallpapers
+        else
+            set -l screen_size (hyprctl monitors -j | jq -r 'max_by(.width * .height) | "\(.width)\n\(.height)"')
+            set -l wall_sizes (identify -ping -format '%w %h\n' $unfiltered_wallpapers)
+
+            # Apply threshold
+            set -q _flag_t && set threshold $_flag_t
+            set screen_size[1] (math $screen_size[1] x $threshold / 100)
+            set screen_size[2] (math $screen_size[2] x $threshold / 100)
+
+            # Add wallpapers that are larger than the screen size * threshold to list to choose from ($wallpapers)
+            for i in (seq 1 (count $wall_sizes))
+                set -l wall_size (string split ' ' $wall_sizes[$i])
+                if [ $wall_size[1] -ge $screen_size[1] -a $wall_size[2] -ge $screen_size[2] ]
+                    set -a wallpapers $unfiltered_wallpapers[$i]
+                end
+            end
+        end
+
+        # Check if the $wallpapers list is unset or empty
+        if ! set -q wallpapers || [ -z "$wallpapers" ]
+            echo "No eligible files found in $wallpapers_dir"
+            exit 1
+        end
+
+        # Choose a random wallpaper from the $wallpapers list
+        set chosen_wallpaper (random choice $wallpapers)
+    end
+
+    # Change the wallpaper and output change if success
+    hyprctl hyprpaper preload $chosen_wallpaper > /dev/null
+    for monitor in (hyprctl -j monitors | jq -r '.[].name')
+        hyprctl hyprpaper wallpaper "$monitor,$chosen_wallpaper" && log "Changed wallpaper on $monitor to $chosen_wallpaper" > /dev/null
+    end
+
+    # Unload unused wallpapers to preserve memory
+    hyprctl hyprpaper unload unused > /dev/null
+
+    # Store the wallpaper chosen
+    mkdir -p $cache_dir
+    echo $chosen_wallpaper > $last_wallpaper_path
+    ln -sf $chosen_wallpaper "$cache_dir/current"
+    magick $chosen_wallpaper -fill black -colorize 10% -blur 0x10 "$cache_dir/blur"
+end

main.fish

@@ -0,0 +1,18 @@
+#!/bin/fish
+
+cd (dirname (status filename)) || exit
+
+. ./util.fish
+
+if test "$argv[1]" = change-wallpaper
+    ./change-wallpaper.fish $argv[2..]
+end
+
+test "$argv[1]" != help && error "Unknown command: $argv[1]"
+
+echo 'Usage: caelestia COMMAND'
+echo
+echo 'COMMAND := help | change-wallpaper'
+echo
+echo '  help: show this help message'
+echo '  change-wallpaper: change the wallpaper'

util.fish

@@ -0,0 +1,20 @@
+function log -a text
+    set_color cyan
+    # Pass arguments other than text to echo
+    echo $argv[2..] -- ":: $text"
+    set_color normal
+end
+
+function warn -a text
+    set_color yellow
+    # Pass arguments other than text to echo
+    echo $argv[2..] -- ":: $text"
+    set_color normal
+end
+
+function error -a text
+    set_color red
+    # Pass arguments other than text to echo
+    echo $argv[2..] -- ":: $text"
+    set_color normal
+end