commit f89577d1df7186bed52821adfd5f332daaafba98
parent b83b81f6d90de2a01921d04c6b4d27ea67355d11
Author: Michael Neuper <73108749+michaelneuper@users.noreply.github.com>
Date: Thu, 17 Nov 2022 17:46:07 +0200
Once again trying to get previews to work
Diffstat:
8 files changed, 284 insertions(+), 7 deletions(-)
diff --git a/.config/lf/cleaner b/.config/lf/cleaner
@@ -1,4 +1,4 @@
-#!/bin/sh
-if [ -n "$FIFO_UEBERZUG" ]; then
- printf '{"action": "remove", "identifier": "PREVIEW"}\n' > "$FIFO_UEBERZUG"
-fi
+#!/usr/bin/env bash
+
+>"${UEBERZUG_FIFO}" declare -A -p cmd=( \
+ [action]=remove [identifier]="$UEBERZUG_IDEN" )
diff --git a/.config/lf/cleaner b/.config/lf/cleaner.old
diff --git a/.config/lf/lfrc b/.config/lf/lfrc
@@ -1,8 +1,7 @@
# Basic Settings
-set ratios 1:2:3
-set previewer ~/.config/lf/preview
-set cleaner ~/.config/lf/cleaner
set preview true
+set previewer ~/.config/lf/previewer
+set cleaner ~/.config/lf/cleaner
set drawbox true
set ignorecase true
set icons true
diff --git a/.config/lf/lfub.old b/.config/lf/lfub.old
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# This is a wrapper script for lb that allows it to create image previews with
+# ueberzug. This works in concert with the lf configuration file and the
+# lf-cleaner script.
+
+set -e
+
+cleanup() {
+ exec 3>&-
+ rm "$FIFO_UEBERZUG"
+}
+
+if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
+ lf "$@"
+else
+ [ ! -d "$HOME/.cache/lf" ] && mkdir -p "$HOME/.cache/lf"
+ export FIFO_UEBERZUG="$HOME/.cache/lf/ueberzug-$$"
+ mkfifo "$FIFO_UEBERZUG"
+ ueberzug layer -s <"$FIFO_UEBERZUG" -p json &
+ exec 3>"$FIFO_UEBERZUG"
+ trap cleanup HUP INT QUIT TERM PWR EXIT
+ lf "$@" 3>&-
+fi
diff --git a/.config/lf/preview.old b/.config/lf/preview.old
@@ -0,0 +1,95 @@
+#!/bin/sh
+
+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' "$4" "$5" "$(($2-1))" "$(($3-1))" "$1" > "$FIFO_UEBERZUG"
+ exit 1
+ else
+ chafa "$1" -s "$4x"
+ fi
+}
+
+batorcat() {
+ file="$1"
+ shift
+ if command -v bat > /dev/null 2>&1
+ then
+ bat --color=always --style=plain --pager=never "$file" "$@"
+ else
+ cat "$file"
+ fi
+}
+
+glowormdcat() {
+ file="$1"
+ shift
+ if command -v glow > /dev/null 2>&1
+ then
+ glow "$file"
+ else
+ mdcat "$file"
+ fi
+}
+
+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}'))"
+
+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" ;;
+ *.md)
+ glowormdcat "$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" "$2" "$3" "$4" "$5"
+ ;;
+ *.epub)
+ [ ! -f "$CACHE" ] && \
+ epub-thumbnailer "$1" "$CACHE" 1024
+ image "$CACHE" "$2" "$3" "$4" "$5"
+ ;;
+ *.cbz|*.cbr|*.cbt)
+ [ ! -f "$CACHE" ] && \
+ comicthumb "$1" "$CACHE" 1024
+ image "$CACHE" "$2" "$3" "$4" "$5"
+ ;;
+ *.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" "$2" "$3" "$4" "$5"
+ ;;
+ *.bmp|*.jpg|*.jpeg|*.png|*.xpm|*.webp|*.tiff|*.gif|*.jfif|*.ico)
+ image "$1" "$2" "$3" "$4" "$5"
+ ;;
+ *.svg)
+ [ ! -f "${CACHE}.jpg" ] && \
+ convert "$1" "${CACHE}.jpg"
+ image "${CACHE}.jpg" "$2" "$3" "$4" "$5"
+ ;;
+ *.ino)
+ batorcat --language=cpp "$1"
+ ;;
+ *)
+ batorcat "$1"
+ ;;
+esac
+exit 0
diff --git a/.config/lf/previewer b/.config/lf/previewer
@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+
+FILE="$HOME/.cache/lf/err.png"
+
+function hash_filename {
+ FILE="$HOME/.cache/lf/$(echo ${1%.*} | sed -e 's|/|\!|g').$2"
+}
+
+function draw_clear {
+ >"${UEBERZUG_FIFO}" declare -A -p cmd=( \
+ [action]=remove [identifier]="$UEBERZUG_IDEN" )
+}
+
+function draw_image {
+# chafa -c full -s ${3}x${2} "$1"
+
+ >"${UEBERZUG_FIFO}" declare -A -p cmd=( \
+ [action]=add [identifier]="$UEBERZUG_IDEN" \
+ [x]="$4" [y]="$5" [width]="$3" [height]="$2" \
+ [scaler]=fit_contain [scaling_position_x]=0.5 [scaling_position_y]=0.5 \
+ [path]="$1" )
+
+ exit 1
+}
+
+function make_video {
+ if [ "${FILE}" -ot "$1" ]; then
+ ffmpegthumbnailer -t 0% -q 3 -s 0 \
+ -c jpeg -i "$1" -o "${FILE}"
+ fi
+}
+
+function make_pdf {
+ if [ "${FILE}" -ot "$1" ]; then
+ pdftoppm -png -f 1 -l 1 -jpeg -tiffcompression jpeg \
+ -scale-to-x -1 -scale-to-y 1080 \
+ -singlefile "$1" "${FILE%.png}"
+ fi
+}
+
+case $(file -b --mime-type "$1") in
+ text/*)
+ draw_clear
+ cat "$1"
+ ;;
+ image/*)
+ draw_image "$1" "$2" "$3" "$4" "$5"
+ ;;
+ video/*)
+ hash_filename "$1" "jpg"
+ make_video "$1" "$2" "$3"
+ draw_image "${FILE}" "$2" "$3" "$4" "$5"
+ ;;
+ audio/*)
+ draw_clear
+ exiftool "$1"
+ ;;
+ application/pdf)
+ hash_filename "$1" "png"
+ make_pdf "$1" "$2" "$3"
+ draw_image "${FILE}" "$2" "$3" "$4" "$5"
+ ;;
+ application/gzip|application/x-xz)
+ draw_clear
+ tar tf "$1"
+ ;;
+ application/zip)
+ draw_clear
+ unzip -Z -1 "$1"
+ ;;
+ application/x-sharedlib)
+ draw_clear
+ readelf -h "$1"
+ ;;
+ *)
+ draw_clear
+ cat "$1"
+ ;;
+esac
+
+exit 0
diff --git a/.config/lf/scope.old b/.config/lf/scope.old
@@ -0,0 +1,49 @@
+#!/bin/sh
+
+# File preview handler for lf.
+
+set -C -f
+IFS="$(printf '%b_' '\n')"; IFS="${IFS%_}"
+
+image() {
+ if [ -f "$1" ] && [ -n "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ] && command -V ueberzug >/dev/null 2>&1; then
+ 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"
+ else
+ mediainfo "$6"
+ fi
+}
+
+ifub() {
+ [ -n "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ] && command -V ueberzug >/dev/null 2>&1
+}
+
+# Note that the cache file name is a function of file information, meaning if
+# an image appears in multiple places across the machine, it will not have to
+# be regenerated once seen.
+
+case "$(file --dereference --brief --mime-type -- "$1")" in
+ image/*) image "$1" "$2" "$3" "$4" "$5" "$1" ;;
+ text/html) lynx -width="$4" -display_charset=utf-8 -dump "$1" ;;
+ text/troff) man ./ "$1" | col -b ;;
+ text/* | */xml | application/json) bat --terminal-width "$(($4-2))" -f "$1" ;;
+ application/zip) atool --list -- "$1" ;;
+ audio/* | application/octet-stream) mediainfo "$1" || exit 1 ;;
+ video/* )
+ 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)"
+ [ ! -f "$CACHE" ] && ffmpegthumbnailer -i "$1" -o "$CACHE" -s 0
+ image "$CACHE" "$2" "$3" "$4" "$5" "$1"
+ ;;
+ */pdf)
+ 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)"
+ [ ! -f "$CACHE.jpg" ] && pdftoppm -jpeg -f 1 -singlefile "$1" "$CACHE"
+ image "$CACHE.jpg" "$2" "$3" "$4" "$5" "$1"
+ ;;
+ */epub+zip|*/mobi*)
+ 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)"
+ [ ! -f "$CACHE.jpg" ] && gnome-epub-thumbnailer "$1" "$CACHE.jpg"
+ image "$CACHE.jpg" "$2" "$3" "$4" "$5" "$1"
+ ;;
+ *opendocument*) odt2txt "$1" ;;
+ application/pgp-encrypted) gpg -d -- "$1" ;;
+esac
+exit 1
diff --git a/.config/lf/startlf b/.config/lf/startlf
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+declare -r -x UEBERZUG_FIFO="$(mktemp --dry-run --suffix "lf-$$-ueberzug")"
+declare -r -x UEBERZUG_IDEN="${UEBERZUG_FIFO#*.}"
+declare -r -x PREVIEW_TMP="$(mktemp -d --suffix "lf-$$-ueberzug")"
+
+function check_cache {
+ if [ ! -d "$HOME/.cache/lf" ]; then
+ mkdir -p "$HOME/.cache/lf"
+ fi
+}
+
+function start_ueberzug {
+ mkfifo "${UEBERZUG_FIFO}"
+ <"${UEBERZUG_FIFO}" ueberzug layer --parser bash --silent &
+ 3> "${UEBERZUG_FIFO}" exec
+}
+
+function remove_temp {
+ rm "${UEBERZUG_FIFO}"
+ rm -r "${PREVIEW_TMP}"
+}
+
+
+check_cache
+start_ueberzug
+lf "$@"
+remove_temp
+\ No newline at end of file
