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Ueberzug Image Previews with FZF
Shell script wrapper for fzf
that shows image
previews for various filetypes, such as images, PDFs and videos.
Based on https://github.com/thimc/lfimg
Requisites
fzf
ueberzug
(note: this is available in theapt
repositories, but not on Github)- Various individual programs, such as
ffmpegthumbnailer
,pdftoppm
, et cetera. Seepreview
below for the full list.
Instructions
- Download
fzfimg
,cleaner
andpreview
into one directory. - Run
chmod +x fzfimg cleaner preview
to make them executable. - Run
./fzfimg
- (Optional) Create an alias by adding
alias fzfimg=~/Downloads/fzfimg/fzfimg
to~/.bashrc
(which the approriate path, of course).
An Extra Suggestion
This script works well with another script for creating blurred backgrounds (see instructions here).
Scripts
fzfimg
#!/bin/sh
set -e
DIR=$(dirname "$0")
echo "$DIR"
cleanup() {
exec 3>&-
rm "$FIFO_UEBERZUG"
}
if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
fzf "$@"
else
[ ! -d "$HOME/.cache/fzf" ] && mkdir --parents "$HOME/.cache/fzf"
export FIFO_UEBERZUG="$HOME/.cache/fzf/ueberzug-$$"
mkfifo "$FIFO_UEBERZUG"
ueberzug layer -s <"$FIFO_UEBERZUG" -p json &
exec 3>"$FIFO_UEBERZUG"
trap cleanup EXIT
fzf --layout=reverse --preview ""$DIR"/cleaner && "$DIR"/preview {}"
~/Documents/Programs/Scripts/fzfimg/cleaner
fi
cleaner
#!/bin/sh
if [ -n "$FIFO_UEBERZUG" ]; then
printf '{"action": "remove", "identifier": "PREVIEW"}\n' > "$FIFO_UEBERZUG"
fi
preview
#!/bin/sh
CACHE="$HOME/.cache/lf/thumbnail.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' \
-- "$(readlink -f "$1")" | sha256sum | awk '{print $1}'))"
image() {
if [ -n "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ]; then
printf '{"action": "add", "identifier": "PREVIEW", "x": "%s", "y":"%s", "width": "%s", "height": "%s", "scaler": "contain", "path": "%s"}\n' \
$(($(tput cols) + 7)) 1 \
"${FZF_PREVIEW_COLUMNS}" "${FZF_PREVIEW_LINES}" "$1"\
> "$FIFO_UEBERZUG"
exit 1
else
chafa "$1" -s "$4x"
fi
}
batorcat() {
file="$1"
shift
if command -v bat > /dev/null 2>&1; then
batcat --color=always --style=plain --pager=never "$file" "$@"
else
cat "$file"
fi
}
case "$(printf "%s\n" "$(readlink -f "$1")" | awk '{print tolower($0)}')" in
*.tgz|*.tar.gz) tar tzf "$1" ;;
*.tar.bz2|*.tbz2) tar tjf "$1" ;;
*.tar.txz|*.txz) xz --list "$1" ;;
*.tar) tar tf "$1" ;;
*.zip|*.jar|*.war|*.ear|*.oxt) unzip -l "$1" ;;
*.rar) unrar l "$1" ;;
*.7z) 7z l "$1" ;;
*.[1-8]) man "$1" | col -b ;;
*.o) nm "$1";;
*.torrent) transmission-show "$1" ;;
*.iso) iso-info --no-header -l "$1" ;;
*.odt|*.ods|*.odp|*.sxw) odt2txt "$1" ;;
*.doc) catdoc "$1" ;;
*.docx) docx2txt "$1" ;;
*.xml|*.html) w3m -dump "$1";;
*.xls|*.xlsx)
ssconvert --export-type=Gnumeric_stf:stf_csv "$1" "fd://1" | batorcat --language=csv
;;
*.wav|*.mp3|*.flac|*.m4a|*.wma|*.ape|*.ac3|*.og[agx]|*.spx|*.opus|*.as[fx]|*.mka)
exiftool "$1"
;;
*.pdf)
[ ! -f "${CACHE}.jpg" ] && pdftoppm -jpeg -f 1 -singlefile "$1" "$CACHE"
image "${CACHE}.jpg"
;;
*.epub)
[ ! -f "$CACHE" ] && epub-thumbnailer "$1" "$CACHE" 1024
image "$CACHE"
;;
*.cbz|*.cbr|*.cbt)
[ ! -f "$CACHE" ] && comicthumb "$1" "$CACHE" 1024
image "$CACHE"
;;
*.avi|*.mp4|*.wmv|*.dat|*.3gp|*.ogv|*.mkv|*.mpg|*.mpeg|*.vob|*.fl[icv]|*.m2v|*.mov|*.webm|*.ts|*.mts|*.m4v|*.r[am]|*.qt|*.divx)
[ ! -f "${CACHE}.jpg" ] && \
ffmpegthumbnailer -i "$1" -o "${CACHE}.jpg" -s 0 -q 5
image "${CACHE}.jpg"
;;
*.bmp|*.jpg|*.jpeg|*.png|*.xpm|*.webp|*.tiff|*.gif|*.jfif|*.ico)
image "$1"
;;
*.svg)
[ ! -f "${CACHE}.jpg" ] && convert "$1" "${CACHE}.jpg"
image "${CACHE}.jpg"
;;
*.ino) batorcat --language=cpp "$1" ;;
*) batorcat "$1" ;;
esac
exit 0
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If you have questions, you can email me at jeremy.w.cains at gmail.com. View page source here.