Convert change_wallpaper.sh using nix writeShellApplication

hosts/totsugeki/desktop/default.nix

@@ -39,6 +39,7 @@
       wl-clipboard
       (import ./scripts/colorpicker.nix { inherit pkgs; })
       (import ./scripts/currently-playing.nix { inherit pkgs; })
+      (import ./scripts/change-wallpaper.nix { inherit pkgs; })
       (pkgs.buildEnv {
         name = "desktop-scripts";
         paths = [ ./scripts_legacy ];

hosts/totsugeki/desktop/hyprland.nix

@@ -158,9 +158,9 @@
     extraConfig = ''
       submap = Fondo de pantalla
 
-      bind = , H, exec, change_wallpaper.sh previous
-      bind = , L, exec, change_wallpaper.sh next
-      bind = , M, exec, change_wallpaper.sh open-menu
+      bind = , H, exec, change-wallpaper previous
+      bind = , L, exec, change-wallpaper next
+      bind = , M, exec, change-wallpaper open-menu
       bindl = , escape, submap, reset
       bindl = MOD3, w, submap, reset
 

hosts/totsugeki/desktop/scripts/change-wallpaper.nix

@@ -0,0 +1,81 @@
+{ pkgs }:
+
+pkgs.writeShellApplication {
+  name = "change-wallpaper";
+  runtimeInputs = with pkgs; [ dunst rofi swww ];
+  text = ''
+    shopt -s nullglob
+
+    WALLPAPER_PATH="$HOME/.local/share/wallpapers"
+    WALLPAPERS=("$WALLPAPER_PATH"/*)
+
+    if [ ! -f "$WALLPAPER_PATH/.current_path" ]; then
+        # Current wallpaper file does not exist, create it
+        echo "''${WALLPAPERS[0]}" > "$WALLPAPER_PATH/.current_path"
+    fi
+
+    CURRENT_WALLPAPER=$(cat "$WALLPAPER_PATH/.current_path")
+    CURRENT_WP_INDEX=-1
+    # Get the current wallpaper's index
+    for index in "''${!WALLPAPERS[@]}"; do
+        if [ "''${WALLPAPERS[$index]}" = "$CURRENT_WALLPAPER" ]; then
+            CURRENT_WP_INDEX=$index
+        fi
+    done
+
+    if [ "$CURRENT_WP_INDEX" -eq -1 ]; then
+        CURRENT_WP_INDEX=0
+    fi
+
+    if [ "$1" = "previous" ]; then
+        WALLPAPER="''${WALLPAPERS[$CURRENT_WP_INDEX - 1]}"
+        TRANSITION_ANGLE=300
+    elif [ "$1" = "next" ]; then
+        NEXT_INDEX=$((CURRENT_WP_INDEX + 1))
+        if [ "$NEXT_INDEX" = "''${#WALLPAPERS[@]}" ]; then
+            NEXT_INDEX=0
+        fi
+        WALLPAPER=''${WALLPAPERS[$NEXT_INDEX]}
+        TRANSITION_ANGLE=120
+    elif [ "$1" = "open-menu" ]; then
+        INPUT=""
+        for index in "''${!WALLPAPERS[@]}"; do
+            if [ "$index" = "$CURRENT_WP_INDEX" ]; then
+                continue
+            fi
+            _WALLPAPER=''${WALLPAPERS[$index]}
+            _WALLPAPER_NAME=$(basename "$_WALLPAPER")
+            INPUT+="$_WALLPAPER_NAME\0icon\x1f$_WALLPAPER"
+            if [ ! $((index + 1)) -eq ''${#WALLPAPERS[@]} ]; then
+                INPUT+=$'\n'
+            fi
+        done
+        if ! WALLPAPER=$(echo -en "$INPUT" | rofi -dmenu -mesg "Cambiar fondo de pantalla" -p "" -i -theme ~/.config/rofi/wallpaper_selector.rasi); then
+            exit 1
+        fi
+        WALLPAPER="$WALLPAPER_PATH/$WALLPAPER"
+        TRANSITION_ANGLE=270
+    else
+        echo "Unknown first argument: $1"
+        exit 1
+    fi
+
+    if [ -z "$WALLPAPER" ]; then
+        exit 1
+    fi
+
+    WALLPAPER_NAME=$(basename "$WALLPAPER")
+    echo "Setting wallpaper to $WALLPAPER"
+    echo "$WALLPAPER" > "$WALLPAPER_PATH/.current_path"
+    ln -sf "$WALLPAPER" "$WALLPAPER_PATH/.current_image"
+    dunstify -i "$WALLPAPER" -t 2800 "Cambiando fondo de pantalla" "Cambiando a $WALLPAPER_NAME"
+    swww img\
+        --transition-type wipe\
+        --transition-angle $TRANSITION_ANGLE\
+        --transition-step 90\
+        --transition-duration 1\
+        --transition-fps 165\
+        "$WALLPAPER"
+
+  '';
+}

hosts/totsugeki/desktop/scripts_legacy/bin/change_wallpaper.sh

@@ -1,74 +0,0 @@
-#!/bin/sh
-
-shopt -s nullglob
-
-WALLPAPER_PATH=~/.local/share/wallpapers
-WALLPAPERS=($WALLPAPER_PATH/*)
-
-if [ ! -f "$WALLPAPER_PATH/.current_path" ]; then
-    # Current wallpaper file does not exist, create it
-    echo ${WALLPAPERS[0]} > "$WALLPAPER_PATH/.current_path"
-fi
-
-CURRENT_WALLPAPER=$(cat "$WALLPAPER_PATH/.current_path")
-# Get the current wallpaper's index
-for index in ${!WALLPAPERS[@]}; do
-    if [ "${WALLPAPERS[$index]}" = "$CURRENT_WALLPAPER" ]; then
-        CURRENT_WP_INDEX=$index
-    fi
-done
-
-if [ -z $CURRENT_WP_INDEX ]; then
-    CURRENT_WP_INDEX=0
-fi
-
-if [ $1 = "previous" ]; then
-    WALLPAPER=${WALLPAPERS[$CURRENT_WP_INDEX - 1]}
-    TRANSITION_ANGLE=300
-elif [ $1 = "next" ]; then
-    NEXT_INDEX=$((CURRENT_WP_INDEX + 1))
-    if [ $NEXT_INDEX = ${#WALLPAPERS[@]} ]; then
-        NEXT_INDEX=0
-    fi
-    WALLPAPER=${WALLPAPERS[$NEXT_INDEX]}
-    TRANSITION_ANGLE=120
-elif [ $1 = "open-menu" ]; then
-    INPUT=$''
-    for index in ${!WALLPAPERS[@]}; do
-        if [ $index = $CURRENT_WP_INDEX ]; then
-            continue
-        fi
-        _WALLPAPER="${WALLPAPERS[$index]}"
-        _WALLPAPER_NAME=$(basename "$_WALLPAPER")
-        INPUT+="$_WALLPAPER_NAME\0icon\x1f$_WALLPAPER"
-        if [ ! $(($index + 1)) = ${#WALLPAPERS[@]} ]; then
-            INPUT+=$'\n'
-        fi
-    done
-    WALLPAPER=$(echo -en "$INPUT" | rofi -dmenu -mesg "Cambiar fondo de pantalla" -p "" -i -theme ~/.config/rofi/wallpaper_selector.rasi)
-    if [ ! $? = 0 ]; then
-        exit 1
-    fi
-    WALLPAPER="${WALLPAPER_PATH}/${WALLPAPER}"
-    TRANSITION_ANGLE=270
-else
-    echo "Unknown first argument: $1"
-    exit 1
-fi
-
-if [ -z $WALLPAPER ]; then
-    exit 1
-fi
-
-WALLPAPER_NAME=$(basename "$WALLPAPER")
-echo "Setting wallpaper to $WALLPAPER, args: $@"
-echo "$WALLPAPER" > "$WALLPAPER_PATH/.current_path"
-ln -sf "$WALLPAPER" "$WALLPAPER_PATH/.current_image"
-dunstify -i "$WALLPAPER" -t 2800 "Cambiando fondo de pantalla" "Cambiando a $WALLPAPER_NAME"
-swww img\
-    --transition-type wipe\
-    --transition-angle $TRANSITION_ANGLE\
-    --transition-step 90\
-    --transition-duration 1\
-    --transition-fps 165\
-    "$WALLPAPER"