marc
5 years ago
2 changed files with 217 additions and 1 deletions
Unified View
Diff Options
@ -0,0 +1,216 @@ |
|||||
|
#!/usr/bin/env bash |
||||
|
|
||||
|
set -o noclobber -o noglob -o nounset -o pipefail |
||||
|
IFS=$'\n' |
||||
|
|
||||
|
# If the option `use_preview_script` is set to `true`, |
||||
|
# then this script will be called and its output will be displayed in ranger. |
||||
|
# ANSI color codes are supported. |
||||
|
# STDIN is disabled, so interactive scripts won't work properly |
||||
|
|
||||
|
# This script is considered a configuration file and must be updated manually. |
||||
|
# It will be left untouched if you upgrade ranger. |
||||
|
|
||||
|
# Meanings of exit codes: |
||||
|
# code | meaning | action of ranger |
||||
|
# -----+------------+------------------------------------------- |
||||
|
# 0 | success | Display stdout as preview |
||||
|
# 1 | no preview | Display no preview at all |
||||
|
# 2 | plain text | Display the plain content of the file |
||||
|
# 3 | fix width | Don't reload when width changes |
||||
|
# 4 | fix height | Don't reload when height changes |
||||
|
# 5 | fix both | Don't ever reload |
||||
|
# 6 | image | Display the image `$IMAGE_CACHE_PATH` points to as an image preview |
||||
|
# 7 | image | Display the file directly as an image |
||||
|
|
||||
|
# Script arguments |
||||
|
FILE_PATH="${1}" # Full path of the highlighted file |
||||
|
PV_WIDTH="${2}" # Width of the preview pane (number of fitting characters) |
||||
|
PV_HEIGHT="${3}" # Height of the preview pane (number of fitting characters) |
||||
|
IMAGE_CACHE_PATH="${4}" # Full path that should be used to cache image preview |
||||
|
PV_IMAGE_ENABLED="${5}" # 'True' if image previews are enabled, 'False' otherwise. |
||||
|
|
||||
|
FILE_EXTENSION="${FILE_PATH##*.}" |
||||
|
FILE_EXTENSION_LOWER=$(echo ${FILE_EXTENSION} | tr '[:upper:]' '[:lower:]') |
||||
|
|
||||
|
# Settings |
||||
|
HIGHLIGHT_SIZE_MAX=262143 # 256KiB |
||||
|
HIGHLIGHT_TABWIDTH=8 |
||||
|
HIGHLIGHT_STYLE='pablo' |
||||
|
PYGMENTIZE_STYLE='autumn' |
||||
|
|
||||
|
|
||||
|
handle_extension() { |
||||
|
case "${FILE_EXTENSION_LOWER}" in |
||||
|
# Archive |
||||
|
a|ace|alz|arc|arj|bz|bz2|cab|cpio|deb|gz|jar|lha|lz|lzh|lzma|lzo|\ |
||||
|
rpm|rz|t7z|tar|tbz|tbz2|tgz|tlz|txz|tZ|tzo|war|xpi|xz|Z|zip) |
||||
|
atool --list -- "${FILE_PATH}" && exit 5 |
||||
|
bsdtar --list --file "${FILE_PATH}" && exit 5 |
||||
|
exit 1;; |
||||
|
rar) |
||||
|
# Avoid password prompt by providing empty password |
||||
|
unrar lt -p- -- "${FILE_PATH}" && exit 5 |
||||
|
exit 1;; |
||||
|
7z) |
||||
|
# Avoid password prompt by providing empty password |
||||
|
7z l -p -- "${FILE_PATH}" && exit 5 |
||||
|
exit 1;; |
||||
|
|
||||
|
# PDF |
||||
|
pdf) |
||||
|
# Preview as text conversion |
||||
|
pdftotext -l 10 -nopgbrk -q -- "${FILE_PATH}" - | fmt -w ${PV_WIDTH} && exit 5 |
||||
|
mutool draw -F txt -i -- "${FILE_PATH}" 1-10 | fmt -w ${PV_WIDTH} && exit 5 |
||||
|
exiftool "${FILE_PATH}" && exit 5 |
||||
|
exit 1;; |
||||
|
|
||||
|
# BitTorrent |
||||
|
torrent) |
||||
|
transmission-show -- "${FILE_PATH}" && exit 5 |
||||
|
exit 1;; |
||||
|
|
||||
|
# OpenDocument |
||||
|
odt|ods|odp|sxw) |
||||
|
# Preview as text conversion |
||||
|
odt2txt "${FILE_PATH}" && exit 5 |
||||
|
exit 1;; |
||||
|
|
||||
|
# HTML |
||||
|
htm|html|xhtml) |
||||
|
# Preview as text conversion |
||||
|
w3m -dump "${FILE_PATH}" && exit 5 |
||||
|
lynx -dump -- "${FILE_PATH}" && exit 5 |
||||
|
elinks -dump "${FILE_PATH}" && exit 5 |
||||
|
;; # Continue with next handler on failure |
||||
|
esac |
||||
|
} |
||||
|
|
||||
|
handle_image() { |
||||
|
local mimetype="${1}" |
||||
|
case "${mimetype}" in |
||||
|
# SVG |
||||
|
# image/svg+xml) |
||||
|
# convert "${FILE_PATH}" "${IMAGE_CACHE_PATH}" && exit 6 |
||||
|
# exit 1;; |
||||
|
|
||||
|
# Image |
||||
|
image/*) |
||||
|
local orientation |
||||
|
orientation="$( identify -format '%[EXIF:Orientation]\n' -- "${FILE_PATH}" )" |
||||
|
# If orientation data is present and the image actually |
||||
|
# needs rotating ("1" means no rotation)... |
||||
|
if [[ -n "$orientation" && "$orientation" != 1 ]]; then |
||||
|
# ...auto-rotate the image according to the EXIF data. |
||||
|
convert -- "${FILE_PATH}" -auto-orient "${IMAGE_CACHE_PATH}" && exit 6 |
||||
|
fi |
||||
|
|
||||
|
# `w3mimgdisplay` will be called for all images (unless overriden as above), |
||||
|
# but might fail for unsupported types. |
||||
|
exit 7;; |
||||
|
|
||||
|
# Video |
||||
|
video/*) |
||||
|
# Thumbnail |
||||
|
ffmpegthumbnailer -i "${FILE_PATH}" -o "${IMAGE_CACHE_PATH}" -s 0 && exit 6 |
||||
|
exit 1;; |
||||
|
# PDF |
||||
|
# application/pdf) |
||||
|
# pdftoppm -f 1 -l 1 \ |
||||
|
# -scale-to-x 1920 \ |
||||
|
# -scale-to-y -1 \ |
||||
|
# -singlefile \ |
||||
|
# -jpeg -tiffcompression jpeg \ |
||||
|
# -- "${FILE_PATH}" "${IMAGE_CACHE_PATH%.*}" \ |
||||
|
# && exit 6 || exit 1;; |
||||
|
|
||||
|
# Preview archives using the first image inside. |
||||
|
# (Very useful for comic book collections for example.) |
||||
|
# application/zip|application/x-rar|application/x-7z-compressed|\ |
||||
|
# application/x-xz|application/x-bzip2|application/x-gzip|application/x-tar) |
||||
|
# local fn=""; local fe="" |
||||
|
# local zip=""; local rar=""; local tar=""; local bsd="" |
||||
|
# case "${mimetype}" in |
||||
|
# application/zip) zip=1 ;; |
||||
|
# application/x-rar) rar=1 ;; |
||||
|
# application/x-7z-compressed) ;; |
||||
|
# *) tar=1 ;; |
||||
|
# esac |
||||
|
# { [ "$tar" ] && fn=$(tar --list --file "${FILE_PATH}"); } || \ |
||||
|
# { fn=$(bsdtar --list --file "${FILE_PATH}") && bsd=1 && tar=""; } || \ |
||||
|
# { [ "$rar" ] && fn=$(unrar lb -p- -- "${FILE_PATH}"); } || \ |
||||
|
# { [ "$zip" ] && fn=$(zipinfo -1 -- "${FILE_PATH}"); } || return |
||||
|
# |
||||
|
# fn=$(echo "$fn" | python -c "import sys; import mimetypes as m; \ |
||||
|
# [ print(l, end='') for l in sys.stdin if \ |
||||
|
# (m.guess_type(l[:-1])[0] or '').startswith('image/') ]" |\ |
||||
|
# sort -V | head -n 1) |
||||
|
# [ "$fn" = "" ] && return |
||||
|
# [ "$bsd" ] && fn=$(printf '%b' "$fn") |
||||
|
# |
||||
|
# [ "$tar" ] && tar --extract --to-stdout \ |
||||
|
# --file "${FILE_PATH}" -- "$fn" > "${IMAGE_CACHE_PATH}" && exit 6 |
||||
|
# fe=$(echo -n "$fn" | sed 's/[][*?\]/\\\0/g') |
||||
|
# [ "$bsd" ] && bsdtar --extract --to-stdout \ |
||||
|
# --file "${FILE_PATH}" -- "$fe" > "${IMAGE_CACHE_PATH}" && exit 6 |
||||
|
# [ "$bsd" ] || [ "$tar" ] && rm -- "${IMAGE_CACHE_PATH}" |
||||
|
# [ "$rar" ] && unrar p -p- -inul -- "${FILE_PATH}" "$fn" > \ |
||||
|
# "${IMAGE_CACHE_PATH}" && exit 6 |
||||
|
# [ "$zip" ] && unzip -pP "" -- "${FILE_PATH}" "$fe" > \ |
||||
|
# "${IMAGE_CACHE_PATH}" && exit 6 |
||||
|
# [ "$rar" ] || [ "$zip" ] && rm -- "${IMAGE_CACHE_PATH}" |
||||
|
# ;; |
||||
|
esac |
||||
|
} |
||||
|
|
||||
|
handle_mime() { |
||||
|
local mimetype="${1}" |
||||
|
case "${mimetype}" in |
||||
|
# Text |
||||
|
text/* | */xml) |
||||
|
# Syntax highlight |
||||
|
if [[ "$( stat --printf='%s' -- "${FILE_PATH}" )" -gt "${HIGHLIGHT_SIZE_MAX}" ]]; then |
||||
|
exit 2 |
||||
|
fi |
||||
|
if [[ "$( tput colors )" -ge 256 ]]; then |
||||
|
local pygmentize_format='terminal256' |
||||
|
local highlight_format='xterm256' |
||||
|
else |
||||
|
local pygmentize_format='terminal' |
||||
|
local highlight_format='ansi' |
||||
|
fi |
||||
|
highlight --replace-tabs="${HIGHLIGHT_TABWIDTH}" --out-format="${highlight_format}" \ |
||||
|
--style="${HIGHLIGHT_STYLE}" --force -- "${FILE_PATH}" && exit 5 |
||||
|
# pygmentize -f "${pygmentize_format}" -O "style=${PYGMENTIZE_STYLE}" -- "${FILE_PATH}" && exit 5 |
||||
|
exit 2;; |
||||
|
|
||||
|
# Image |
||||
|
image/*) |
||||
|
# Preview as text conversion |
||||
|
# img2txt --gamma=0.6 --width="${PV_WIDTH}" -- "${FILE_PATH}" && exit 4 |
||||
|
exiftool "${FILE_PATH}" && exit 5 |
||||
|
exit 1;; |
||||
|
|
||||
|
# Video and audio |
||||
|
video/* | audio/*) |
||||
|
mediainfo "${FILE_PATH}" && exit 5 |
||||
|
exiftool "${FILE_PATH}" && exit 5 |
||||
|
exit 1;; |
||||
|
esac |
||||
|
} |
||||
|
|
||||
|
handle_fallback() { |
||||
|
echo '----- File Type Classification -----' && file --dereference --brief -- "${FILE_PATH}" && exit 5 |
||||
|
exit 1 |
||||
|
} |
||||
|
|
||||
|
|
||||
|
MIMETYPE="$( file --dereference --brief --mime-type -- "${FILE_PATH}" )" |
||||
|
if [[ "${PV_IMAGE_ENABLED}" == 'True' ]]; then |
||||
|
handle_image "${MIMETYPE}" |
||||
|
fi |
||||
|
handle_extension |
||||
|
handle_mime "${MIMETYPE}" |
||||
|
handle_fallback |
||||
|
|
||||
|
exit 1 |
||||