lf stuff
parent
465c107a89
commit
9602ddf9f8
@ -0,0 +1,4 @@
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#!/bin/sh
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if [ -n "$FIFO_UEBERZUG" ]; then
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printf '{"action": "remove", "identifier": "PREVIEW"}\n' > "$FIFO_UEBERZUG"
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fi
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@ -0,0 +1,61 @@
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#!/bin/sh
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# File preview handler for lf.
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set -C -f
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IFS="$(printf '%b_' '\n')"; IFS="${IFS%_}"
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image() {
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if [ -f "$1" ] && [ -n "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ] && command -V ueberzug >/dev/null 2>&1; then
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printf '{"action": "add", "identifier": "PREVIEW", "x": "%s", "y": "%s", "width": "%s", "height": "%s", "scaler": "contain", "path": "%s"}\n' "$4" "$5" "$(($2-1))" "$(($3-1))" "$1" > "$FIFO_UEBERZUG"
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else
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mediainfo "$6"
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fi
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}
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# Note that the cache file name is a function of file information, meaning if
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# an image appears in multiple places across the machine, it will not have to
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# be regenerated once seen.
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case "$(file --dereference --brief --mime-type -- "$1")" in
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image/avif) CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
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[ ! -f "$CACHE" ] && convert "$1" "$CACHE.jpg"
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image "$CACHE.jpg" "$2" "$3" "$4" "$5" "$1" ;;
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image/vnd.djvu)
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CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
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[ ! -f "$CACHE" ] && djvused "$1" -e 'select 1; save-page-with /dev/stdout' | convert -density 200 - "$CACHE.jpg" > /dev/null 2>&1
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image "$CACHE.jpg" "$2" "$3" "$4" "$5" "$1" ;;
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image/svg+xml)
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CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
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[ ! -f "$CACHE" ] && inkscape --convert-dpi-method=none -o "$CACHE.png" --export-overwrite -D --export-png-color-mode=RGBA_16 "$1"
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image "$CACHE.png" "$2" "$3" "$4" "$5" "$1" ;;
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image/*)
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image "$1" "$2" "$3" "$4" "$5" "$1" ;;
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text/html)
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lynx -width="$4" -display_charset=utf-8 -dump "$1" ;;
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text/troff)
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man ./ "$1" | col -b ;;
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text/* | */xml | application/json | application/x-ndjson)
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bat -p --theme nord --terminal-width "$(($4-2))" -f "$1" ;;
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audio/* | application/octet-stream)
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mediainfo "$1" || exit 1 ;;
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video/* )
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CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
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[ ! -f "$CACHE" ] && ffmpegthumbnailer -i "$1" -o "$CACHE" -s 0
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image "$CACHE" "$2" "$3" "$4" "$5" "$1"
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;;
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*/pdf)
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CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
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[ ! -f "$CACHE.jpg" ] && pdftoppm -jpeg -f 1 -singlefile "$1" "$CACHE"
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image "$CACHE.jpg" "$2" "$3" "$4" "$5" "$1"
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;;
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*/epub+zip|*/mobi*)
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CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
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[ ! -f "$CACHE.jpg" ] && gnome-epub-thumbnailer "$1" "$CACHE.jpg"
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image "$CACHE.jpg" "$2" "$3" "$4" "$5" "$1"
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;;
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application/*zip) atool --list -- "$1" ;;
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*opendocument*) odt2txt "$1" ;;
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application/pgp-encrypted) gpg -d -- "$1" ;;
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esac
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exit 1
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@ -0,0 +1,24 @@
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#!/bin/sh
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# This is a wrapper script for lf that allows it to create image previews with
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# ueberzug. This works in concert with the lf configuration file and the
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# lf-cleaner script.
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set -e
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cleanup() {
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exec 3>&-
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rm "$FIFO_UEBERZUG"
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}
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if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
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lf "$@"
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else
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[ ! -d "$HOME/.cache/lf" ] && mkdir -p "$HOME/.cache/lf"
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export FIFO_UEBERZUG="$HOME/.cache/lf/ueberzug-$$"
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mkfifo "$FIFO_UEBERZUG"
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ueberzug layer -s <"$FIFO_UEBERZUG" -p json &
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exec 3>"$FIFO_UEBERZUG"
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trap cleanup HUP INT QUIT TERM PWR EXIT
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lf "$@" 3>&-
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fi
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Reference in New Issue