389 lines
15 KiB
Bash
389 lines
15 KiB
Bash
|
#!/usr/bin/env bash
|
||
|
|
|
||
|
|
set -o noclobber -o noglob -o nounset -o pipefail
|
||
|
|
IFS=$'\n'
|
||
|
|
|
||
|
|
## If the option `use_preview_script` is set to `true`,
|
||
|
|
## then this script will be called and its output will be displayed in ranger.
|
||
|
|
## ANSI color codes are supported.
|
||
|
|
## STDIN is disabled, so interactive scripts won't work properly
|
||
|
|
|
||
|
|
## This script is considered a configuration file and must be updated manually.
|
||
|
|
## It will be left untouched if you upgrade ranger.
|
||
|
|
|
||
|
|
## Because of some automated testing we do on the script #'s for comments need
|
||
|
|
## to be doubled up. Code that is commented out, because it's an alternative for
|
||
|
|
## example, gets only one #.
|
||
|
|
|
||
|
|
## Meanings of exit codes:
|
||
|
|
## code | meaning | action of ranger
|
||
|
|
## -----+------------+-------------------------------------------
|
||
|
|
## 0 | success | Display stdout as preview
|
||
|
|
## 1 | no preview | Display no preview at all
|
||
|
|
## 2 | plain text | Display the plain content of the file
|
||
|
|
## 3 | fix width | Don't reload when width changes
|
||
|
|
## 4 | fix height | Don't reload when height changes
|
||
|
|
## 5 | fix both | Don't ever reload
|
||
|
|
## 6 | image | Display the image `$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)
|
||
|
|
## shellcheck disable=SC2034 # PV_HEIGHT is provided for convenience and unused
|
||
|
|
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="$(printf "%s" "${FILE_EXTENSION}" | tr '[:upper:]' '[:lower:]')"
|
||
|
|
|
||
|
|
## Settings
|
||
|
|
HIGHLIGHT_SIZE_MAX=262143 # 256KiB
|
||
|
|
HIGHLIGHT_TABWIDTH="${HIGHLIGHT_TABWIDTH:-8}"
|
||
|
|
HIGHLIGHT_STYLE="${HIGHLIGHT_STYLE:-pablo}"
|
||
|
|
HIGHLIGHT_OPTIONS="--replace-tabs=${HIGHLIGHT_TABWIDTH} --style=${HIGHLIGHT_STYLE} ${HIGHLIGHT_OPTIONS:-}"
|
||
|
|
PYGMENTIZE_STYLE="${PYGMENTIZE_STYLE:-autumn}"
|
||
|
|
OPENSCAD_IMGSIZE="${RNGR_OPENSCAD_IMGSIZE:-1000,1000}"
|
||
|
|
OPENSCAD_COLORSCHEME="${RNGR_OPENSCAD_COLORSCHEME:-Tomorrow Night}"
|
||
|
|
|
||
|
|
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 -- "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## OpenDocument
|
||
|
|
odt|sxw)
|
||
|
|
## Preview as text conversion
|
||
|
|
odt2txt "${FILE_PATH}" && exit 5
|
||
|
|
## Preview as markdown conversion
|
||
|
|
pandoc -s -t markdown -- "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
ods|odp)
|
||
|
|
## Preview as text conversion (unsupported by pandoc for markdown)
|
||
|
|
odt2txt "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## XLSX
|
||
|
|
xlsx)
|
||
|
|
## Preview as csv conversion
|
||
|
|
## Uses: https://github.com/dilshod/xlsx2csv
|
||
|
|
xlsx2csv -- "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## HTML
|
||
|
|
htm|html|xhtml)
|
||
|
|
## Preview as text conversion
|
||
|
|
w3m -dump "${FILE_PATH}" && exit 5
|
||
|
|
lynx -dump -- "${FILE_PATH}" && exit 5
|
||
|
|
elinks -dump "${FILE_PATH}" && exit 5
|
||
|
|
pandoc -s -t markdown -- "${FILE_PATH}" && exit 5
|
||
|
|
;;
|
||
|
|
|
||
|
|
## JSON
|
||
|
|
json)
|
||
|
|
jq --color-output . "${FILE_PATH}" && exit 5
|
||
|
|
python -m json.tool -- "${FILE_PATH}" && exit 5
|
||
|
|
;;
|
||
|
|
|
||
|
|
## Jupyter Notebooks
|
||
|
|
ipynb)
|
||
|
|
jupyter nbconvert --to markdown "${FILE_PATH}" --stdout | env COLORTERM=8bit bat --color=always --style=plain --language=markdown && exit 5
|
||
|
|
jupyter nbconvert --to markdown "${FILE_PATH}" --stdout && exit 5
|
||
|
|
jq --color-output . "${FILE_PATH}" && exit 5
|
||
|
|
python -m json.tool -- "${FILE_PATH}" && exit 5
|
||
|
|
;;
|
||
|
|
|
||
|
|
## Direct Stream Digital/Transfer (DSDIFF) and wavpack aren't detected
|
||
|
|
## by file(1).
|
||
|
|
dff|dsf|wv|wvc)
|
||
|
|
mediainfo "${FILE_PATH}" && exit 5
|
||
|
|
exiftool "${FILE_PATH}" && exit 5
|
||
|
|
;; # Continue with next handler on failure
|
||
|
|
esac
|
||
|
|
}
|
||
|
|
|
||
|
|
handle_image() {
|
||
|
|
## Size of the preview if there are multiple options or it has to be
|
||
|
|
## rendered from vector graphics. If the conversion program allows
|
||
|
|
## specifying only one dimension while keeping the aspect ratio, the width
|
||
|
|
## will be used.
|
||
|
|
local DEFAULT_SIZE="1920x1080"
|
||
|
|
|
||
|
|
local mimetype="${1}"
|
||
|
|
case "${mimetype}" in
|
||
|
|
## SVG
|
||
|
|
image/svg+xml|image/svg)
|
||
|
|
rsvg-convert --keep-aspect-ratio --width "${DEFAULT_SIZE%x*}" "${FILE_PATH}" -o "${IMAGE_CACHE_PATH}.png" \
|
||
|
|
&& mv "${IMAGE_CACHE_PATH}.png" "${IMAGE_CACHE_PATH}" \
|
||
|
|
&& exit 6
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## DjVu
|
||
|
|
# image/vnd.djvu)
|
||
|
|
# ddjvu -format=tiff -quality=90 -page=1 -size="${DEFAULT_SIZE}" \
|
||
|
|
# - "${IMAGE_CACHE_PATH}" < "${FILE_PATH}" \
|
||
|
|
# && exit 6 || exit 1;;
|
||
|
|
|
||
|
|
## Image
|
||
|
|
image/*)
|
||
|
|
local orientation
|
||
|
|
orientation="$( 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 "${IMAGE_CACHE_PATH}" && exit 6
|
||
|
|
fi
|
||
|
|
|
||
|
|
## `w3mimgdisplay` will be called for all images (unless overridden
|
||
|
|
## as above), but might fail for unsupported types.
|
||
|
|
exit 7;;
|
||
|
|
|
||
|
|
## Video
|
||
|
|
video/*)
|
||
|
|
# Get embedded thumbnail
|
||
|
|
ffmpeg -i "${FILE_PATH}" -map 0:v -map -0:V -c copy "${IMAGE_CACHE_PATH}" && exit 6
|
||
|
|
# Get frame 10% into video
|
||
|
|
ffmpegthumbnailer -i "${FILE_PATH}" -o "${IMAGE_CACHE_PATH}" -s 0 && exit 6
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## Audio
|
||
|
|
audio/*)
|
||
|
|
# Get embedded thumbnail
|
||
|
|
ffmpeg -i "${FILE_PATH}" -map 0:v -map -0:V -c copy \
|
||
|
|
"${IMAGE_CACHE_PATH}" && exit 6;;
|
||
|
|
|
||
|
|
## PDF
|
||
|
|
application/pdf)
|
||
|
|
pdftoppm -f 1 -l 1 \
|
||
|
|
-scale-to-x "${DEFAULT_SIZE%x*}" \
|
||
|
|
-scale-to-y -1 \
|
||
|
|
-singlefile \
|
||
|
|
-jpeg -tiffcompression jpeg \
|
||
|
|
-- "${FILE_PATH}" "${IMAGE_CACHE_PATH%.*}" \
|
||
|
|
&& exit 6 || exit 1;;
|
||
|
|
|
||
|
|
|
||
|
|
## ePub, MOBI, FB2 (using Calibre)
|
||
|
|
# application/epub+zip|application/x-mobipocket-ebook|\
|
||
|
|
# application/x-fictionbook+xml)
|
||
|
|
# # ePub (using https://github.com/marianosimone/epub-thumbnailer)
|
||
|
|
# epub-thumbnailer "${FILE_PATH}" "${IMAGE_CACHE_PATH}" \
|
||
|
|
# "${DEFAULT_SIZE%x*}" && exit 6
|
||
|
|
# ebook-meta --get-cover="${IMAGE_CACHE_PATH}" -- "${FILE_PATH}" \
|
||
|
|
# >/dev/null && exit 6
|
||
|
|
# exit 1;;
|
||
|
|
|
||
|
|
## Font
|
||
|
|
application/font*|application/*opentype)
|
||
|
|
preview_png="/tmp/$(basename "${IMAGE_CACHE_PATH%.*}").png"
|
||
|
|
if fontimage -o "${preview_png}" \
|
||
|
|
--pixelsize "120" \
|
||
|
|
--fontname \
|
||
|
|
--pixelsize "80" \
|
||
|
|
--text " ABCDEFGHIJKLMNOPQRSTUVWXYZ " \
|
||
|
|
--text " abcdefghijklmnopqrstuvwxyz " \
|
||
|
|
--text " 0123456789.:,;(*!?') ff fl fi ffi ffl " \
|
||
|
|
--text " The quick brown fox jumps over the lazy dog. " \
|
||
|
|
"${FILE_PATH}";
|
||
|
|
then
|
||
|
|
convert -- "${preview_png}" "${IMAGE_CACHE_PATH}" \
|
||
|
|
&& rm "${preview_png}" \
|
||
|
|
&& exit 6
|
||
|
|
else
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
;;
|
||
|
|
|
||
|
|
## 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 "from __future__ import print_function; \
|
||
|
|
# 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
|
||
|
|
|
||
|
|
# openscad_image() {
|
||
|
|
# TMPPNG="$(mktemp -t XXXXXX.png)"
|
||
|
|
# openscad --colorscheme="${OPENSCAD_COLORSCHEME}" \
|
||
|
|
# --imgsize="${OPENSCAD_IMGSIZE/x/,}" \
|
||
|
|
# -o "${TMPPNG}" "${1}"
|
||
|
|
# mv "${TMPPNG}" "${IMAGE_CACHE_PATH}"
|
||
|
|
# }
|
||
|
|
|
||
|
|
case "${FILE_EXTENSION_LOWER}" in
|
||
|
|
## 3D models
|
||
|
|
## OpenSCAD only supports png image output, and ${IMAGE_CACHE_PATH}
|
||
|
|
## is hardcoded as jpeg. So we make a tempfile.png and just
|
||
|
|
## move/rename it to jpg. This works because image libraries are
|
||
|
|
## smart enough to handle it.
|
||
|
|
# csg|scad)
|
||
|
|
# openscad_image "${FILE_PATH}" && exit 6
|
||
|
|
# ;;
|
||
|
|
# 3mf|amf|dxf|off|stl)
|
||
|
|
# openscad_image <(echo "import(\"${FILE_PATH}\");") && exit 6
|
||
|
|
# ;;
|
||
|
|
drawio)
|
||
|
|
draw.io -x "${FILE_PATH}" -o "${IMAGE_CACHE_PATH}" \
|
||
|
|
--width "${DEFAULT_SIZE%x*}" && exit 6
|
||
|
|
exit 1;;
|
||
|
|
esac
|
||
|
|
}
|
||
|
|
|
||
|
|
handle_mime() {
|
||
|
|
local mimetype="${1}"
|
||
|
|
case "${mimetype}" in
|
||
|
|
## RTF and DOC
|
||
|
|
text/rtf|*msword)
|
||
|
|
## Preview as text conversion
|
||
|
|
## note: catdoc does not always work for .doc files
|
||
|
|
## catdoc: http://www.wagner.pp.ru/~vitus/software/catdoc/
|
||
|
|
catdoc -- "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## DOCX, ePub, FB2 (using markdown)
|
||
|
|
## You might want to remove "|epub" and/or "|fb2" below if you have
|
||
|
|
## uncommented other methods to preview those formats
|
||
|
|
*wordprocessingml.document|*/epub+zip|*/x-fictionbook+xml)
|
||
|
|
## Preview as markdown conversion
|
||
|
|
pandoc -s -t markdown -- "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## E-mails
|
||
|
|
message/rfc822)
|
||
|
|
## Parsing performed by mu: https://github.com/djcb/mu
|
||
|
|
mu view -- "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## XLS
|
||
|
|
*ms-excel)
|
||
|
|
## Preview as csv conversion
|
||
|
|
## xls2csv comes with catdoc:
|
||
|
|
## http://www.wagner.pp.ru/~vitus/software/catdoc/
|
||
|
|
xls2csv -- "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## 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
|
||
|
|
env HIGHLIGHT_OPTIONS="${HIGHLIGHT_OPTIONS}" highlight \
|
||
|
|
--out-format="${highlight_format}" \
|
||
|
|
--force -- "${FILE_PATH}" && exit 5
|
||
|
|
env COLORTERM=8bit bat --color=always --style="plain" \
|
||
|
|
-- "${FILE_PATH}" && exit 5
|
||
|
|
pygmentize -f "${pygmentize_format}" -O "style=${PYGMENTIZE_STYLE}"\
|
||
|
|
-- "${FILE_PATH}" && exit 5
|
||
|
|
exit 2;;
|
||
|
|
|
||
|
|
## DjVu
|
||
|
|
image/vnd.djvu)
|
||
|
|
## Preview as text conversion (requires djvulibre)
|
||
|
|
djvutxt "${FILE_PATH}" | fmt -w "${PV_WIDTH}" && exit 5
|
||
|
|
exiftool "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## 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 "${FILE_PATH}" && exit 5
|
||
|
|
exit 1;;
|
||
|
|
|
||
|
|
## ELF files (executables and shared objects)
|
||
|
|
application/x-executable | application/x-pie-executable | application/x-sharedlib)
|
||
|
|
readelf -WCa "${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
|