THEAARBS ranger scope

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#!/usr/bin/env sh
# ranger supports enhanced previews.  If the option "use_preview_script"
# is set to True and this file exists, this script will be called and its
# output is displayed in ranger.  ANSI color codes are supported.

# NOTES: This script is considered a configuration file. If you upgrade # ranger, it will be left untouched. (You must update it yourself.) # Also, ranger disables STDIN here, so interactive scripts won't work properly

# Meanings of exit codes: # code | meaning | action of ranger # —–+————+——————————————- # 0 | success | success. display stdout as preview # 1 | no preview | failure. display no preview at all # 2 | plain text | display the plain content of the file # 3 | fix width | success. Don't reload when width changes # 4 | fix height | success. Don't reload when height changes # 5 | fix both | success. Don't ever reload # 6 | image | success. display the image $cached points to as an image preview # 7 | image | success. display the file directly as an image

# Meaningful aliases for arguments: path="$1" # Full path of the selected file width="$2" # Width of the preview pane (number of fitting characters) height="$3" # Height of the preview pane (number of fitting characters) cached="$4" # Path that should be used to cache image previews preview_images="$5" # "True" if image previews are enabled, "False" otherwise.

maxln=200 # Stop after $maxln lines. Can be used like ls | head -n $maxln

# Find out something about the file: mimetype=$(file –mime-type -Lb "$path") extension=$(/bin/echo "${path##*.}" | awk '{print tolower($0)}')

# Functions: # runs a command and saves its output into $output. Useful if you need # the return value AND want to use the output in a pipe try() { output=$(eval '"$@"'); }

# writes the output of the previously used "try" command dump() { /bin/echo "$output"; }

# a common post-processing function used after most commands trim() { head -n "$maxln"; }

# wraps highlight to treat exit code 141 (killed by SIGPIPE) as success safepipe() { "$@"; test $? = 0 -o $? = 141; }

# Image previews, if enabled in ranger. if [ "$preview_images" = "True" ]; then case "$mimetype" in # Image previews for SVG files, disabled by default. ###image/svg+xml) ### convert "$path" "$cached" && exit 6 || exit 1;; # Image previews for image files. w3mimgdisplay will be called for all # image files (unless overriden as above), but might fail for # unsupported types. image/) exit 7;; # Image preview for video, disabled by default.: ###video/) ### ffmpegthumbnailer -i "$path" -o "$cached" -s 0 && exit 6 || exit 1;; esac fi

case "$extension" in # # Archive extensions: # a|ace|alz|arc|arj|bz|bz2|cab|cpio|deb|gz|jar|lha|lz|lzh|lzma|lzo|</span> # rpm|rz|t7z|tar|tbz|tbz2|tgz|tlz|txz|tZ|tzo|war|xpi|xz|Z|zip) # try als "$path" && { dump | trim; exit 0; } # try acat "$path" && { dump | trim; exit 3; } # try bsdtar -lf "$path" && { dump | trim; exit 0; } # exit 1;; # rar) # # avoid password prompt by providing empty password # try unrar -p- lt "$path" && { dump | trim; exit 0; } || exit 1;; # 7z) # # avoid password prompt by providing empty password # try 7z -p l "$path" && { dump | trim; exit 0; } || exit 1;; # PDF documents: pdf) try pdftoppm -jpeg -singlefile "$path" "${cached//.jpg}" && exit 6 || exit 1;; # BitTorrent Files torrent) try transmission-show "$path" && { dump | trim; exit 5; } || exit 1;; # ODT Files odt|ods|odp|sxw) try odt2txt "$path" && { dump | trim; exit 5; } || exit 1;; # HTML Pages: htm|html|xhtml) try w3m -dump "$path" && { dump | trim | fmt -s -w $width; exit 4; } try lynx -dump "$path" && { dump | trim | fmt -s -w $width; exit 4; } try elinks -dump "$path" && { dump | trim | fmt -s -w $width; exit 4; } ;; # fall back to highlight/cat if the text browsers fail esac

case "$mimetype" in # Syntax highlight for text files: text/* | */xml) if [ "$(tput colors)" -ge 256 ]; then pygmentize_format=terminal256 highlight_format=ansi # highlight_format=xterm256 else pygmentize_format=terminal highlight_format=ansi fi try safepipe highlight –out-format=${highlight_format} "$path" && { dump | trim; exit 5; } try safepipe pygmentize -f ${pygmentize_format} "$path" && { dump | trim; exit 5; } exit 2;; # Ascii-previews of images: image/*) img2txt –gamma=0.6 –width="$width" "$path" && exit 4 || exit 1;; # Display information about media files: video/* | audio/*) exiftool "$path" && exit 5 # Use sed to remove spaces so the output fits into the narrow window try mediainfo "$path" && { dump | trim | sed 's/ +:/: /;'; exit 5; } || exit 1;; esac

exit 1