Update hyprpaper.md

[elkcityhazard]

Add a check for mime-type in documentation for "Get a random wallpaper that is not the current one".

This prevents hyprpaper from trying to load a .git directory, or other mime types and crashing.

[fufexan]

Why not just keep shuffling until we find a good mimetype?

Optionally we could configure a maximum count and if we hit it without finding a mimetype, show the error. This way, the script does not run forever in case of failures.

[elkcityhazard]

#!/bin/bash
ATTEMPTS=0
MAX_NUM=10
FILES=()
WALLPAPER_DIR="/usr/share/backgrounds"
CURRENT_WALL=$(hyprctl --instance 0 hyprpaper listloaded)
WALLPAPER=""

while true; do
    ((ATTEMPTS++))
    echo "Attempt #$ATTEMPTS"

    if (( ATTEMPTS > MAX_NUM )); then
        notify-send "Error: we tried to set the following files: ${FILES[*]}"
        exit 1
    fi

    WALLPAPER=$(find "$WALLPAPER_DIR" -type f ! -name "$(basename "$CURRENT_WALL")" | shuf -n 1)
    if [[ -z "$WALLPAPER" ]]; then
        notify-send "Error: No suitable wallpapers found."
        exit 1
    fi

    MIME_TYPE=$(file --mime-type -b "$WALLPAPER")
    if [[ ! "$MIME_TYPE" =~ ^image/ ]]; then
        echo "$WALLPAPER - $MIME_TYPE"
        FILES+=("$WALLPAPER")
        notify-send "WARNING" "The selected file '$WALLPAPER' is not an image (MIME type: $MIME_TYPE)."
    else
        echo "Setting: $WALLPAPER"
        # Apply the selected wallpaper
        hyprctl --instance 0 hyprpaper reload ,"$WALLPAPER"
        break
    fi
done

[fufexan]

Not sure about --instance 0 being everywhere. I guess it should be noted above/below the script that if it is run in an environment without HIS present, it should be added.

[fufexan]

This also looks weird. Should be left as the user's home.

[elkcityhazard]

Sound feedback, I will get that updated when I can.