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author | Jeff Zhao <jeff.no.zhao@gmail.com> | 2022-01-16 15:16:50 -0500 |
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committer | Jeff Zhao <jeff.no.zhao@gmail.com> | 2022-01-16 15:16:50 -0500 |
commit | b2acd4e54dc24a7ba8689ddfad163f8ac4ecbda5 (patch) | |
tree | a93bd402b41dac5b9f4f0b43c613dcec3fd4cb88 /config/preview_file.sh | |
parent | 589055310b929934149e21ef956a4c820d854492 (diff) |
move preview script into config
Diffstat (limited to 'config/preview_file.sh')
-rwxr-xr-x | config/preview_file.sh | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/config/preview_file.sh b/config/preview_file.sh new file mode 100755 index 0000000..f71d8bb --- /dev/null +++ b/config/preview_file.sh @@ -0,0 +1,258 @@ +#!/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 + +FILE_PATH="" +PREVIEW_IMAGE_ENABLED=0 +PREVIEW_WIDTH=10 +PREVIEW_HEIGHT=10 +PREVIEW_X_COORD=0 +PREVIEW_Y_COORD=0 +IMAGE_CACHE_PATH="" + +# echo "$@" + +while [ "$#" -gt 0 ]; do + case "$1" in + "--path") + shift + FILE_PATH="$1" + ;; + "--preview-width") + shift + PREVIEW_WIDTH="$1" + ;; + "--preview-height") + shift + PREVIEW_HEIGHT="$1" + ;; + "--x-coord") + shift + PREVIEW_X_COORD="$1" + ;; + "--y-coord") + shift + PREVIEW_Y_COORD="$1" + ;; + "--preview-images") + shift + PREVIEW_IMAGE_ENABLED="$1" + ;; + "--image-cache") + shift + IMAGE_CACHE_PATH="$1" + ;; + esac + shift +done + +FILE_EXTENSION="${FILE_PATH##*.}" +FILE_EXTENSION_LOWER="$(printf "%s" "${FILE_EXTENSION}" | tr '[:upper:]' '[:lower:]')" + +MIMETYPE=$(file --mime-type -Lb "${FILE_PATH}") + +## 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 "${PREVIEW_WIDTH}" && exit 5 + ## mutool draw -F txt -i -- "${FILE_PATH}" 1-10 | \ + ## fmt -w "${PREVIEW_WIDTH}" && exit 5 + ## exiftool "${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 + ## Preview as markdown conversion + pandoc -s -t markdown -- "${FILE_PATH}" && exit 5 + exit 1;; + + ## XLSX + xlsx) + ## Preview as csv conversion + ## Uses: https://github.com/dilshod/xlsx2csv + xlsx2csv -- "${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|ipynb) + 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="40x30" + + local mimetype="${1}" + case "${mimetype}" in + ## Image + image/*) + # kitty +kitten icat --clear + kitty +kitten icat \ + --transfer-mode file \ + --place "${PREVIEW_WIDTH}x${PREVIEW_HEIGHT}@${PREVIEW_X_COORD}x${PREVIEW_Y_COORD}" \ + "${FILE_PATH}" + exit 7 + ;; + esac +} + +handle_mime() { + local mimetype="${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 -- "${FILE_PATH}" && exit 5 + exit 1;; + + ## Text + text/* | */xml) + bat --color=always --paging=never \ + --style=plain \ + --terminal-width="${PREVIEW_WIDTH}" \ + "${FILE_PATH}" && exit 5 + exit 2;; + + ## DjVu + image/vnd.djvu) + ## Preview as text conversion (requires djvulibre) + djvutxt "${FILE_PATH}" | fmt -w "${PREVIEW_WIDTH}" && exit 5 + exiftool "${FILE_PATH}" && exit 5 + exit 1;; + + ## Image + image/*) + ## Preview as text conversion + # img2txt --gamma=0.6 --width="${PREVIEW_WIDTH}" -- "${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 [[ "${PREVIEW_IMAGE_ENABLED}" -eq 1 ]]; then + handle_image "${MIMETYPE}" +fi +handle_extension +handle_mime "${MIMETYPE}" +handle_fallback + +exit 1 |