From 7bb116da0fe1c8c94a55f3ed3d960070a6d69458 Mon Sep 17 00:00:00 2001
From: Luca Bilke <luca@bil.ke>
Date: Fri, 7 Mar 2025 13:41:30 +0100
Subject: [PATCH] lf: rewrite preview script
---
common/.config/lf/preview | 244 +++++++++++++++++++++-----------------
1 file changed, 135 insertions(+), 109 deletions(-)
diff --git a/common/.config/lf/preview b/common/.config/lf/preview
index e0de4974..e5643944 100755
--- a/common/.config/lf/preview
+++ b/common/.config/lf/preview
@@ -1,32 +1,116 @@
#!/bin/sh
-set -C -f
+f="$(realpath "$1")" w=$2 h=$3 _x=$4 _y=$5
-f="$(realpath "$1")" w=$2 h=$3 x=$4 y=$5
-
-RED="\033[31m"
-RESET="\033[0m"
RS="$(printf "\037")"
CACHE="${XDG_CACHE_HOME}/lf/$(stat --printf "%n %i %F %s %W %Y" -- "$(readlink -f "$1")" | sha256sum | awk '{print $1}')"
SIZED_CACHE="${XDG_CACHE_HOME}/lf/$(stat --printf "%n %i %F %s %W %Y ${w} ${h}" -- "$(readlink -f "$1")" | sha256sum | awk '{print $1}')"
BAT="bat --style=plain --color=always --italic-text=always --pager=never --tabs=4 --theme=base16 --line-range=:$h --terminal-width=$((w - 2))"
CHAFA="chafa -f sixel -s ${w}x${h} --polite on --animate false"
-run() {
- #shellcheck disable=SC2068
- if ! command -v "$1" >/dev/null 2>&1; then
- printf "%b" "${RED}Cannot execute ${1}${RESET}"
- elif "$@"; then
- :
- else
- printf "%b" "${RED}Failed to run command: ${RESET}"
- for l in "$@"; do
- printf "%b" "\n${RED} ${l}${RESET}"
- done
- fi
+# NOTE: preview functions
+
+archive1() {
+ 7z l "$f" | sed 1,11d
}
-cached_text() {
+archive2() {
+ als -- "$f"
+}
+
+csv() {
+ mlr --icsv --omd cat "$f" | CLICOLOR_FORCE=1 COLORTERM=truecolor glow -w "$w" -s tokyo-night
+}
+
+docx() {
+ docx2txt "$f" -
+}
+
+epub() {
+ gnome-epub-thumbnailer -s 1024 "$f" /dev/stdout
+}
+
+html() {
+ lynx -dump "$f"
+}
+
+image() {
+ $CHAFA "$f"
+}
+
+iso() {
+ iso-info --no-header -l "$f"
+}
+
+json() {
+ jq -C . "$f"
+}
+
+lua() {
+ $BAT --language=lua "$f"
+}
+
+markdown() {
+ CLICOLOR_FORCE=1 COLORTERM=truecolor glow -w "$w" -s tokyo-night "$f"
+}
+
+word() {
+ catdoc "$f"
+}
+
+ods() {
+ ssconvert --export-type=Gnumeric_stf:stf_assistant -O separator="$RS" "$f" "fd://1" | column -t -s "$RS"
+}
+
+odt() {
+ odt2txt "$f"
+}
+
+pdf() {
+ pdftoppm -jpeg -f 1 -singlefile "$f"
+}
+
+sqlite() {
+ printf ".headers on\n.mode list\nSELECT name FROM sqlite_master WHERE type='table';\n" |
+ sqlite3 "$f" |
+ grep -v name |
+ while read -r table; do
+ [ "$table" != "name" ] &&
+ printf "SELECT * FROM %s;" "$table" |
+ sqlite3 -header -separator "$RS" "$f"
+ done |
+ column -t -s "$RS"
+}
+
+svg() {
+ inkscape \
+ --convert-dpi-method=none \
+ --export-filename=- \
+ --export-overwrite \
+ --export-area-drawing \
+ --export-png-color-mode=RGBA_16 "$f" |
+ $CHAFA
+}
+
+text() {
+ $BAT "$f"
+}
+
+torrent() {
+ transmission-show "$f"
+}
+
+video() {
+ ffmpegthumbnailer -s 0 -i "$f" -o "/dev/stdout" | $CHAFA
+}
+
+yaml() {
+ $BAT --language=yaml "$f"
+}
+
+# NOTE: other functions
+
+run() {
if [ "$1" = "-s" ]; then
cache="$SIZED_CACHE"
shift
@@ -34,105 +118,47 @@ cached_text() {
cache="$CACHE"
fi
- if [ -f "$cache" ]; then
- # shellcheck disable=SC2086
- $BAT "$cache"
+ if [ -r "$cache" ]; then
+ cat "$cache"
else
- # shellcheck disable=SC2086
- run "$@" | tee -p "$cache" | $BAT
+ "$@" | tee -p "$cache"
fi
}
-cached_image() {
- if [ -f "$CACHE" ]; then
- $CHAFA "$CACHE"
- else
- run "$@" | tee -p "$CACHE" | $CHAFA
- fi
-}
+preview() {
+ mimetype=$1
-mimetest() {
- case "$1" in
- # */pgp-encrypted) run gpg -d -- "$f" ;;
- */vnd.openxmlformats-officedocument.spreadsheetml.sheet | */vnd.oasis.opendocument.spreadsheet)
- if [ -f "$CACHE" ]; then
- $BAT "$CACHE"
- else
- ssconvert --export-type=Gnumeric_stf:stf_assistant -O separator="$RS" "$f" "fd://1" |
- column -t -s "$RS" | tee -p "$CACHE"
- fi
- ;;
- */vnd.sqlite3)
- if [ -f "$CACHE" ]; then
- $BAT "$CACHE"
- else
- printf ".headers on\n.mode list\nSELECT name FROM sqlite_master WHERE type='table';\n" |
- sqlite3 "$f" |
- grep -v name |
- while read -r table; do
- [ "$table" != "name" ] &&
- printf "SELECT * FROM %s;" "$table" |
- sqlite3 -header -separator "$RS" "$f"
- done |
- column -t -s "$RS" | tee -p "$CACHE"
- fi
- ;;
- */x-7z-compressed | */vnd.rar | */x-tar | */zip | */x-java-archive | */x-xz | */gzip)
- if [ -f "$CACHE" ]; then
- $BAT "$CACHE"
- else
- run 7z l "$f" | sed 1,11d | tee -p "$CACHE" | $BAT
- fi
- ;;
- */epub+zip) cached_image gnome-epub-thumbnailer -s 1024 "$f" "$CACHE" ;;
- image/svg+xml)
- cached_image inkscape \
- --convert-dpi-method=none \
- --export-filename=- \
- --export-overwrite \
- --export-area-drawing \
- --export-png-color-mode=RGBA_16 "$f"
- ;;
- image/*) $CHAFA "$f" ;;
- */pdf) cached_image pdftoppm -jpeg -f 1 -singlefile "$f" ;;
- video/*) cached_image ffmpegthumbnailer -s 0 -i "$f" -o "/dev/stdout" ;;
- */vnd.oasis.opendocument.text) cached_text odt2txt "$f" ;;
- */vnd.openxmlformats-officedocument.wordprocessingml.document) cached_text docx2txt "$f" - ;;
- */csv)
- export COLORTERM=truecolor
- export CLICOLOR_FORCE=1
- # TODO: caching
- mlr --icsv --omd cat "$f" | glow -w "$w" -s tokyo-night
- ;;
- */markdown)
- export COLORTERM=truecolor
- export CLICOLOR_FORCE=1
- cached_text -s glow -w "$w" -s tokyo-night "$f"
- ;;
- */html) cached_text lynx -dump "$f" ;;
- */*json) cached_text jq -C . "$f" ;;
- */msword) cached_text catdoc "$f" ;;
- */x-bittorrent) cached_text transmission-show "$f" ;;
- */x-cd-image) cached_text iso-info --no-header -l "$f" ;;
- */x-bzip-compressed-tar | */x-compressed-tar | */x-xz-compressed-tar) cached_text als -- "$f" ;;
- */*lua) $BAT --language=lua "$f" ;;
- */*yaml) $BAT --language=yaml "$f" ;;
- *text*) $BAT "$f" ;;
+ case "$mimetype" in
+ */vnd.openxmlformats-officedocument.spreadsheetml.sheet | */vnd.oasis.opendocument.spreadsheet) run ods ;;
+ */vnd.sqlite3) run sqlite ;;
+ */x-7z-compressed | */vnd.rar | */x-tar | */zip | */x-java-archive | */x-xz | */gzip) run archive1 ;;
+ */epub+zip) run -s epub ;;
+ image/svg+xml) run -s svg ;;
+ image/*) run -s image ;;
+ */pdf) run -s pdf ;;
+ video/*) run -s video ;;
+ */vnd.oasis.opendocument.text) run odt ;;
+ */vnd.openxmlformats-officedocument.wordprocessingml.document) run docx ;;
+ */csv) run -s csv ;;
+ */markdown) run -s markdown ;;
+ */html) run html ;;
+ */*json) run json ;;
+ */msword) run word ;;
+ */x-bittorrent) run torrent ;;
+ */x-cd-image) run iso ;;
+ */x-bzip-compressed-tar | */x-compressed-tar | */x-xz-compressed-tar) run archive2 ;;
+ */*lua) run lua ;;
+ */*yaml) run yaml ;;
+ *text*) run text ;;
*) return 1 ;;
esac
}
-# Special cases
-[ "$(dirname "$(realpath "$f")" | rev | cut -d/ -f1 | rev)" = "factscache" ] &&
- [ -f "$(dirname "$(dirname "$(realpath "$f")")")/ansible.cfg" ] &&
- jq -C <"$f" && exit
+mimetype_gio="$(gio info "$f" 2>/dev/null | grep standard::content-type | cut -d' ' -f4)"
+preview "$mimetype_gio" && exit
+mimetype_file="$(file --brief --dereference --mime-type "$f")"
+preview "$mimetype_file" && exit
-giorun="$(gio info "$f" 2>/dev/null | grep standard::content-type | cut -d' ' -f4)"
-mimetest "$giorun" && exit
-
-filerun="$(file --brief --dereference --mime-type "$f")"
-mimetest "$filerun" && exit
-
-printf "%b" "\$(file --mime-type)\t\t\t : $filerun\n"
-[ -n "$giorun" ] && printf "%b" "\$(gio info)\t\t\t\t : $giorun\n"
+[ -n "$mimetype_file" ] && printf "%b" "\$(file --mime-type)\t\t\t : ${mimetype_file}\n"
+[ -n "$mimetype_gio" ] && printf "%b" "\$(gio info)\t\t\t\t : ${mimetype_gio}\n"
mediainfo "$1" | head -n -2 | grep -v -e "Complete name" -e "General"