# Feh; Lightweight image viewer

mkdir -p ~/.config/feh
cat >> .config/feh/keys << EOF
next_img Next
prev_img Prior
zoom_out minus
zoom_in equal
EOF

mkdir -p ~/.local/share/applications
cat >> ~/.local/share/applications/feh.desktop << EOF
[Desktop Entry]
Name=Feh
GenericName=Image viewer
Comment=Image viewer
Exec=feh.sh
Icon=image-viewer
Type=Application
StartupNotify=false
NoDisplay=true
Hidden=false
Terminal=false
Categories=Graphics;Viewer;
MimeType=image/jpeg;image/png;image/gif;image/tiff;image/bmp;image/x-icon;image/x-xpixmap;image/x-xbitmap;
EOF

mkdir -p ~/.local/bin
cat >> ~/.local/bin/feh.sh << EOF
#!/bin/bash

shopt -s nullglob

if [[ ! -f $1 ]]; then
	echo "$0: first argument is not a file" >&2
	exit 1
fi

file=$(basename -- "$1")
dir=$(dirname -- "$1")
arr=()
shift

cd -- "$dir"

for i in *; do
	[[ -f $i ]] || continue
	arr+=("$i")
	[[ $i == $file ]] && c=$((${#arr[@]} - 1))
done

exec feh "$@" -- "${arr[@]:c}" "${arr[@]:0:c}"
EOF