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        1
        #!/usr/bin/env bash
      
        2
        
        3
        set -o noclobber -o noglob -o nounset -o pipefail
      
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        IFS=$'\n'
      
        5
        
        6
        ## If the option `use_preview_script` is set to `true`,
      
        7
        ## then this script will be called and its output will be displayed in ranger.
      
        8
        ## ANSI color codes are supported.
      
        9
        ## STDIN is disabled, so interactive scripts won't work properly
      
        10
        
        11
        ## This script is considered a configuration file and must be updated manually.
      
        12
        ## It will be left untouched if you upgrade ranger.
      
        13
        
        14
        ## Because of some automated testing we do on the script #'s for comments need
      
        15
        ## to be doubled up. Code that is commented out, because it's an alternative for
      
        16
        ## example, gets only one #.
      
        17
        
        18
        ## Meanings of exit codes:
      
        19
        ## code | meaning    | action of ranger
      
        20
        ## -----+------------+-------------------------------------------
      
        21
        ## 0    | success    | Display stdout as preview
      
        22
        ## 1    | no preview | Display no preview at all
      
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        ## 2    | plain text | Display the plain content of the file
      
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        ## 3    | fix width  | Don't reload when width changes
      
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        ## 4    | fix height | Don't reload when height changes
      
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        ## 5    | fix both   | Don't ever reload
      
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        ## 6    | image      | Display the image `$IMAGE_CACHE_PATH` points to as an image preview
      
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        ## 7    | image      | Display the file directly as an image
      
        29
        
        30
        ## Script arguments
      
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        FILE_PATH="${1}"         # Full path of the highlighted file
      
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        PV_WIDTH="${2}"          # Width of the preview pane (number of fitting characters)
      
        33
        ## shellcheck disable=SC2034 # PV_HEIGHT is provided for convenience and unused
      
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        PV_HEIGHT="${3}"         # Height of the preview pane (number of fitting characters)
      
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        IMAGE_CACHE_PATH="${4}"  # Full path that should be used to cache image preview
      
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        PV_IMAGE_ENABLED="${5}"  # 'True' if image previews are enabled, 'False' otherwise.
      
        37
        
        38
        FILE_EXTENSION="${FILE_PATH##*.}"
      
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        FILE_EXTENSION_LOWER="$(printf "%s" "${FILE_EXTENSION}" | tr '[:upper:]' '[:lower:]')"
      
        40
        
        41
        ## Settings
      
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        HIGHLIGHT_SIZE_MAX=262143  # 256KiB
      
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        HIGHLIGHT_TABWIDTH=${HIGHLIGHT_TABWIDTH:-8}
      
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        HIGHLIGHT_STYLE=${HIGHLIGHT_STYLE:-pablo}
      
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        HIGHLIGHT_OPTIONS="--replace-tabs=${HIGHLIGHT_TABWIDTH} --style=${HIGHLIGHT_STYLE} ${HIGHLIGHT_OPTIONS:-}"
      
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        PYGMENTIZE_STYLE=${PYGMENTIZE_STYLE:-autumn}
      
        47
        OPENSCAD_IMGSIZE=${RNGR_OPENSCAD_IMGSIZE:-1000,1000}
      
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        OPENSCAD_COLORSCHEME=${RNGR_OPENSCAD_COLORSCHEME:-Tomorrow Night}
      
        49
        
        50
        handle_extension() {
      
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            case "${FILE_EXTENSION_LOWER}" in
      
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                ## Archive
      
        53
                a|ace|alz|arc|arj|bz|bz2|cab|cpio|deb|gz|jar|lha|lz|lzh|lzma|lzo|\
      
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                rpm|rz|t7z|tar|tbz|tbz2|tgz|tlz|txz|tZ|tzo|war|xpi|xz|Z|zip)
      
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                    atool --list -- "${FILE_PATH}" && exit 5
      
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                    bsdtar --list --file "${FILE_PATH}" && exit 5
      
        57
                    exit 1;;
      
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                rar)
      
        59
                    ## Avoid password prompt by providing empty password
      
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                    unrar lt -p- -- "${FILE_PATH}" && exit 5
      
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                    exit 1;;
      
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                7z)
      
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                    ## Avoid password prompt by providing empty password
      
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                    7z l -p -- "${FILE_PATH}" && exit 5
      
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                    exit 1;;
      
        66
        
        67
                ## PDF
      
        68
                pdf)
      
        69
                    ## Preview as text conversion
      
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                    pdftotext -l 10 -nopgbrk -q -- "${FILE_PATH}" - | \
      
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                      fmt -w "${PV_WIDTH}" && exit 5
      
        72
                    mutool draw -F txt -i -- "${FILE_PATH}" 1-10 | \
      
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                      fmt -w "${PV_WIDTH}" && exit 5
      
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                    exiftool "${FILE_PATH}" && exit 5
      
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                    exit 1;;
      
        76
        
        77
                ## BitTorrent
      
        78
                torrent)
      
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                    transmission-show -- "${FILE_PATH}" && exit 5
      
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                    exit 1;;
      
        81
        
        82
                ## OpenDocument
      
        83
                odt|ods|odp|sxw)
      
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                    ## Preview as text conversion
      
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                    odt2txt "${FILE_PATH}" && exit 5
      
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                    ## Preview as markdown conversion
      
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                    pandoc -s -t markdown -- "${FILE_PATH}" && exit 5
      
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                    exit 1;;
      
        89
        
        90
                ## XLSX
      
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                xlsx)
      
        92
                    ## Preview as csv conversion
      
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                    ## Uses: https://github.com/dilshod/xlsx2csv
      
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                    xlsx2csv -- "${FILE_PATH}" && exit 5
      
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                    exit 1;;
      
        96
        
        97
                ## HTML
      
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                htm|html|xhtml)
      
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                    ## Preview as text conversion
      
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                    w3m -dump "${FILE_PATH}" && exit 5
      
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                    lynx -dump -- "${FILE_PATH}" && exit 5
      
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                    elinks -dump "${FILE_PATH}" && exit 5
      
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                    pandoc -s -t markdown -- "${FILE_PATH}" && exit 5
      
        104
                    ;;
      
        105
        
        106
                ## JSON
      
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                json)
      
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                    jq --color-output . "${FILE_PATH}" && exit 5
      
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                    python -m json.tool -- "${FILE_PATH}" && exit 5
      
        110
                    ;;
      
        111
        
        112
                ## Direct Stream Digital/Transfer (DSDIFF) and wavpack aren't detected
      
        113
                ## by file(1).
      
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                dff|dsf|wv|wvc)
      
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                    mediainfo "${FILE_PATH}" && exit 5
      
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                    exiftool "${FILE_PATH}" && exit 5
      
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                    ;; # Continue with next handler on failure
      
        118
            esac
      
        119
        }
      
        120
        
        121
        handle_image() {
      
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            ## Size of the preview if there are multiple options or it has to be
      
        123
            ## rendered from vector graphics. If the conversion program allows
      
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            ## specifying only one dimension while keeping the aspect ratio, the width
      
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            ## will be used.
      
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            local DEFAULT_SIZE="1920x1080"
      
        127
        
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            local mimetype="${1}"
      
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            case "${mimetype}" in
      
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                ## SVG
      
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                # image/svg+xml|image/svg)
      
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                #     convert -- "${FILE_PATH}" "${IMAGE_CACHE_PATH}" && exit 6
      
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                #     exit 1;;
      
        134
        
        135
                ## DjVu
      
        136
                # image/vnd.djvu)
      
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                #     ddjvu -format=tiff -quality=90 -page=1 -size="${DEFAULT_SIZE}" \
      
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                #           - "${IMAGE_CACHE_PATH}" < "${FILE_PATH}" \
      
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                #           && exit 6 || exit 1;;
      
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        141
                ## Image
      
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                image/*)
      
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                    local orientation
      
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                    orientation="$( identify -format '%[EXIF:Orientation]\n' -- "${FILE_PATH}" )"
      
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                    ## If orientation data is present and the image actually
      
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                    ## needs rotating ("1" means no rotation)...
      
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                    if [[ -n "$orientation" && "$orientation" != 1 ]]; then
      
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                        ## ...auto-rotate the image according to the EXIF data.
      
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                        convert -- "${FILE_PATH}" -auto-orient "${IMAGE_CACHE_PATH}" && exit 6
      
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                    fi
      
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        152
                    ## `w3mimgdisplay` will be called for all images (unless overriden
      
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                    ## as above), but might fail for unsupported types.
      
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                    exit 7;;
      
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                ## Video
      
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                # video/*)
      
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                #     # Thumbnail
      
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                #     ffmpegthumbnailer -i "${FILE_PATH}" -o "${IMAGE_CACHE_PATH}" -s 0 && exit 6
      
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                #     exit 1;;
      
        161
        
        162
                ## PDF
      
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                # application/pdf)
      
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                #     pdftoppm -f 1 -l 1 \
      
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                #              -scale-to-x "${DEFAULT_SIZE%x*}" \
      
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                #              -scale-to-y -1 \
      
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                #              -singlefile \
      
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                #              -jpeg -tiffcompression jpeg \
      
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                #              -- "${FILE_PATH}" "${IMAGE_CACHE_PATH%.*}" \
      
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                #         && exit 6 || exit 1;;
      
        171
        
        172
        
        173
                ## ePub, MOBI, FB2 (using Calibre)
      
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                # application/epub+zip|application/x-mobipocket-ebook|\
      
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                # application/x-fictionbook+xml)
      
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                #     # ePub (using https://github.com/marianosimone/epub-thumbnailer)
      
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                #     epub-thumbnailer "${FILE_PATH}" "${IMAGE_CACHE_PATH}" \
      
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                #         "${DEFAULT_SIZE%x*}" && exit 6
      
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                #     ebook-meta --get-cover="${IMAGE_CACHE_PATH}" -- "${FILE_PATH}" \
      
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                #         >/dev/null && exit 6
      
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                #     exit 1;;
      
        182
        
        183
                ## Font
      
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                application/font*|application/*opentype)
      
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                    preview_png="/tmp/$(basename "${IMAGE_CACHE_PATH%.*}").png"
      
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                    if fontimage -o "${preview_png}" \
      
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                                 --pixelsize "120" \
      
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                                 --fontname \
      
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                                 --pixelsize "80" \
      
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                                 --text "  ABCDEFGHIJKLMNOPQRSTUVWXYZ  " \
      
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                                 --text "  abcdefghijklmnopqrstuvwxyz  " \
      
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                                 --text "  0123456789.:,;(*!?') ff fl fi ffi ffl  " \
      
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                                 --text "  The quick brown fox jumps over the lazy dog.  " \
      
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                                 "${FILE_PATH}";
      
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                    then
      
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                        convert -- "${preview_png}" "${IMAGE_CACHE_PATH}" \
      
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                            && rm "${preview_png}" \
      
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                            && exit 6
      
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                    else
      
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                        exit 1
      
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                    fi
      
        202
                    ;;
      
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        204
                ## Preview archives using the first image inside.
      
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                ## (Very useful for comic book collections for example.)
      
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                # application/zip|application/x-rar|application/x-7z-compressed|\
      
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                #     application/x-xz|application/x-bzip2|application/x-gzip|application/x-tar)
      
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                #     local fn=""; local fe=""
      
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                #     local zip=""; local rar=""; local tar=""; local bsd=""
      
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                #     case "${mimetype}" in
      
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                #         application/zip) zip=1 ;;
      
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                #         application/x-rar) rar=1 ;;
      
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                #         application/x-7z-compressed) ;;
      
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                #         *) tar=1 ;;
      
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                #     esac
      
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                #     { [ "$tar" ] && fn=$(tar --list --file "${FILE_PATH}"); } || \
      
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                #     { fn=$(bsdtar --list --file "${FILE_PATH}") && bsd=1 && tar=""; } || \
      
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                #     { [ "$rar" ] && fn=$(unrar lb -p- -- "${FILE_PATH}"); } || \
      
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                #     { [ "$zip" ] && fn=$(zipinfo -1 -- "${FILE_PATH}"); } || return
      
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                #
      
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                #     fn=$(echo "$fn" | python -c "import sys; import mimetypes as m; \
      
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                #             [ print(l, end='') for l in sys.stdin if \
      
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                #               (m.guess_type(l[:-1])[0] or '').startswith('image/') ]" |\
      
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                #         sort -V | head -n 1)
      
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                #     [ "$fn" = "" ] && return
      
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                #     [ "$bsd" ] && fn=$(printf '%b' "$fn")
      
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                #
      
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                #     [ "$tar" ] && tar --extract --to-stdout \
      
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                #         --file "${FILE_PATH}" -- "$fn" > "${IMAGE_CACHE_PATH}" && exit 6
      
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                #     fe=$(echo -n "$fn" | sed 's/[][*?\]/\\\0/g')
      
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                #     [ "$bsd" ] && bsdtar --extract --to-stdout \
      
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                #         --file "${FILE_PATH}" -- "$fe" > "${IMAGE_CACHE_PATH}" && exit 6
      
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                #     [ "$bsd" ] || [ "$tar" ] && rm -- "${IMAGE_CACHE_PATH}"
      
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                #     [ "$rar" ] && unrar p -p- -inul -- "${FILE_PATH}" "$fn" > \
      
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                #         "${IMAGE_CACHE_PATH}" && exit 6
      
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                #     [ "$zip" ] && unzip -pP "" -- "${FILE_PATH}" "$fe" > \
      
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                #         "${IMAGE_CACHE_PATH}" && exit 6
      
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                #     [ "$rar" ] || [ "$zip" ] && rm -- "${IMAGE_CACHE_PATH}"
      
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                #     ;;
      
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            esac
      
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        242
            # openscad_image() {
      
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            #     TMPPNG="$(mktemp -t XXXXXX.png)"
      
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            #     openscad --colorscheme="${OPENSCAD_COLORSCHEME}" \
      
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            #         --imgsize="${OPENSCAD_IMGSIZE/x/,}" \
      
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            #         -o "${TMPPNG}" "${1}"
      
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            #     mv "${TMPPNG}" "${IMAGE_CACHE_PATH}"
      
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            # }
      
        249
        
        250
            # case "${FILE_EXTENSION_LOWER}" in
      
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            #     ## 3D models
      
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            #     ## OpenSCAD only supports png image output, and ${IMAGE_CACHE_PATH}
      
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            #     ## is hardcoded as jpeg. So we make a tempfile.png and just
      
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            #     ## move/rename it to jpg. This works because image libraries are
      
        255
            #     ## smart enough to handle it.
      
        256
            #     csg|scad)
      
        257
            #         openscad_image "${FILE_PATH}" && exit 6
      
        258
            #         ;;
      
        259
            #     3mf|amf|dxf|off|stl)
      
        260
            #         openscad_image <(echo "import(\"${FILE_PATH}\");") && exit 6
      
        261
            #         ;;
      
        262
            # esac
      
        263
        }
      
        264
        
        265
        handle_mime() {
      
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            local mimetype="${1}"
      
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            case "${mimetype}" in
      
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                ## RTF and DOC
      
        269
                text/rtf|*msword)
      
        270
                    ## Preview as text conversion
      
        271
                    ## note: catdoc does not always work for .doc files
      
        272
                    ## catdoc: http://www.wagner.pp.ru/~vitus/software/catdoc/
      
        273
                    catdoc -- "${FILE_PATH}" && exit 5
      
        274
                    exit 1;;
      
        275
        
        276
                ## DOCX, ePub, FB2 (using markdown)
      
        277
                ## You might want to remove "|epub" and/or "|fb2" below if you have
      
        278
                ## uncommented other methods to preview those formats
      
        279
                *wordprocessingml.document|*/epub+zip|*/x-fictionbook+xml)
      
        280
                    ## Preview as markdown conversion
      
        281
                    pandoc -s -t markdown -- "${FILE_PATH}" && exit 5
      
        282
                    exit 1;;
      
        283
        
        284
                ## XLS
      
        285
                *ms-excel)
      
        286
                    ## Preview as csv conversion
      
        287
                    ## xls2csv comes with catdoc:
      
        288
                    ##   http://www.wagner.pp.ru/~vitus/software/catdoc/
      
        289
                    xls2csv -- "${FILE_PATH}" && exit 5
      
        290
                    exit 1;;
      
        291
        
        292
                ## Text
      
        293
                text/* | */xml)
      
        294
                    ## Syntax highlight
      
        295
                    if [[ "$( stat --printf='%s' -- "${FILE_PATH}" )" -gt "${HIGHLIGHT_SIZE_MAX}" ]]; then
      
        296
                        exit 2
      
        297
                    fi
      
        298
                    if [[ "$( tput colors )" -ge 256 ]]; then
      
        299
                        local pygmentize_format='terminal256'
      
        300
                        local highlight_format='xterm256'
      
        301
                    else
      
        302
                        local pygmentize_format='terminal'
      
        303
                        local highlight_format='ansi'
      
        304
                    fi
      
        305
                    env HIGHLIGHT_OPTIONS="${HIGHLIGHT_OPTIONS}" highlight \
      
        306
                        --out-format="${highlight_format}" \
      
        307
                        --force -- "${FILE_PATH}" && exit 5
      
        308
                    env COLORTERM=8bit bat --color=always --style="plain" \
      
        309
                        -- "${FILE_PATH}" && exit 5
      
        310
                    pygmentize -f "${pygmentize_format}" -O "style=${PYGMENTIZE_STYLE}"\
      
        311
                        -- "${FILE_PATH}" && exit 5
      
        312
                    exit 2;;
      
        313
        
        314
                ## DjVu
      
        315
                image/vnd.djvu)
      
        316
                    ## Preview as text conversion (requires djvulibre)
      
        317
                    djvutxt "${FILE_PATH}" | fmt -w "${PV_WIDTH}" && exit 5
      
        318
                    exiftool "${FILE_PATH}" && exit 5
      
        319
                    exit 1;;
      
        320
        
        321
                ## Image
      
        322
                image/*)
      
        323
                    ## Preview as text conversion
      
        324
                    # img2txt --gamma=0.6 --width="${PV_WIDTH}" -- "${FILE_PATH}" && exit 4
      
        325
                    exiftool "${FILE_PATH}" && exit 5
      
        326
                    exit 1;;
      
        327
        
        328
                ## Video and audio
      
        329
                video/* | audio/*)
      
        330
                    mediainfo "${FILE_PATH}" && exit 5
      
        331
                    exiftool "${FILE_PATH}" && exit 5
      
        332
                    exit 1;;
      
        333
            esac
      
        334
        }
      
        335
        
        336
        handle_fallback() {
      
        337
            echo '----- File Type Classification -----' && file --dereference --brief -- "${FILE_PATH}" && exit 5
      
        338
            exit 1
      
        339
        }
      
        340
        
        341
        
        342
        MIMETYPE="$( file --dereference --brief --mime-type -- "${FILE_PATH}" )"
      
        343
        if [[ "${PV_IMAGE_ENABLED}" == 'True' ]]; then
      
        344
            handle_image "${MIMETYPE}"
      
        345
        fi
      
        346
        handle_extension
      
        347
        handle_mime "${MIMETYPE}"
      
        348
        handle_fallback
      
        349
        
        350
        exit 1

1	#!/usr/bin/env bash
2
3	set -o noclobber -o noglob -o nounset -o pipefail
4	IFS=$'\n'
5
6	## If the option `use_preview_script` is set to `true`,
7	## then this script will be called and its output will be displayed in ranger.
8	## ANSI color codes are supported.
9	## STDIN is disabled, so interactive scripts won't work properly
10
11	## This script is considered a configuration file and must be updated manually.
12	## It will be left untouched if you upgrade ranger.
13
14	## Because of some automated testing we do on the script #'s for comments need
15	## to be doubled up. Code that is commented out, because it's an alternative for
16	## example, gets only one #.
17
18	## Meanings of exit codes:
19	## code \| meaning \| action of ranger
20	## -----+------------+-------------------------------------------
21	## 0 \| success \| Display stdout as preview
22	## 1 \| no preview \| Display no preview at all
23	## 2 \| plain text \| Display the plain content of the file
24	## 3 \| fix width \| Don't reload when width changes
25	## 4 \| fix height \| Don't reload when height changes
26	## 5 \| fix both \| Don't ever reload
27	## 6 \| image \| Display the image `$IMAGE_CACHE_PATH` points to as an image preview
28	## 7 \| image \| Display the file directly as an image
29
30	## Script arguments
31	FILE_PATH="${1}" # Full path of the highlighted file
32	PV_WIDTH="${2}" # Width of the preview pane (number of fitting characters)
33	## shellcheck disable=SC2034 # PV_HEIGHT is provided for convenience and unused
34	PV_HEIGHT="${3}" # Height of the preview pane (number of fitting characters)
35	IMAGE_CACHE_PATH="${4}" # Full path that should be used to cache image preview
36	PV_IMAGE_ENABLED="${5}" # 'True' if image previews are enabled, 'False' otherwise.
37
38	FILE_EXTENSION="${FILE_PATH##*.}"
39	FILE_EXTENSION_LOWER="$(printf "%s" "${FILE_EXTENSION}" \| tr '[:upper:]' '[:lower:]')"
40
41	## Settings
42	HIGHLIGHT_SIZE_MAX=262143 # 256KiB
43	HIGHLIGHT_TABWIDTH=${HIGHLIGHT_TABWIDTH:-8}
44	HIGHLIGHT_STYLE=${HIGHLIGHT_STYLE:-pablo}
45	HIGHLIGHT_OPTIONS="--replace-tabs=${HIGHLIGHT_TABWIDTH} --style=${HIGHLIGHT_STYLE} ${HIGHLIGHT_OPTIONS:-}"
46	PYGMENTIZE_STYLE=${PYGMENTIZE_STYLE:-autumn}
47	OPENSCAD_IMGSIZE=${RNGR_OPENSCAD_IMGSIZE:-1000,1000}
48	OPENSCAD_COLORSCHEME=${RNGR_OPENSCAD_COLORSCHEME:-Tomorrow Night}
49
50	handle_extension() {
51	case "${FILE_EXTENSION_LOWER}" in
52	## Archive
53	a\|ace\|alz\|arc\|arj\|bz\|bz2\|cab\|cpio\|deb\|gz\|jar\|lha\|lz\|lzh\|lzma\|lzo\|\
54	rpm\|rz\|t7z\|tar\|tbz\|tbz2\|tgz\|tlz\|txz\|tZ\|tzo\|war\|xpi\|xz\|Z\|zip)
55	atool --list -- "${FILE_PATH}" && exit 5
56	bsdtar --list --file "${FILE_PATH}" && exit 5
57	exit 1;;
58	rar)
59	## Avoid password prompt by providing empty password
60	unrar lt -p- -- "${FILE_PATH}" && exit 5
61	exit 1;;
62	7z)
63	## Avoid password prompt by providing empty password
64	7z l -p -- "${FILE_PATH}" && exit 5
65	exit 1;;
66
67	## PDF
68	pdf)
69	## Preview as text conversion
70	pdftotext -l 10 -nopgbrk -q -- "${FILE_PATH}" - \| \
71	fmt -w "${PV_WIDTH}" && exit 5
72	mutool draw -F txt -i -- "${FILE_PATH}" 1-10 \| \
73	fmt -w "${PV_WIDTH}" && exit 5
74	exiftool "${FILE_PATH}" && exit 5
75	exit 1;;
76
77	## BitTorrent
78	torrent)
79	transmission-show -- "${FILE_PATH}" && exit 5
80	exit 1;;
81
82	## OpenDocument
83	odt\|ods\|odp\|sxw)
84	## Preview as text conversion
85	odt2txt "${FILE_PATH}" && exit 5
86	## Preview as markdown conversion
87	pandoc -s -t markdown -- "${FILE_PATH}" && exit 5
88	exit 1;;
89
90	## XLSX
91	xlsx)
92	## Preview as csv conversion
93	## Uses: https://github.com/dilshod/xlsx2csv
94	xlsx2csv -- "${FILE_PATH}" && exit 5
95	exit 1;;
96
97	## HTML
98	htm\|html\|xhtml)
99	## Preview as text conversion
100	w3m -dump "${FILE_PATH}" && exit 5
101	lynx -dump -- "${FILE_PATH}" && exit 5
102	elinks -dump "${FILE_PATH}" && exit 5
103	pandoc -s -t markdown -- "${FILE_PATH}" && exit 5
104	;;
105
106	## JSON
107	json)
108	jq --color-output . "${FILE_PATH}" && exit 5
109	python -m json.tool -- "${FILE_PATH}" && exit 5
110	;;
111
112	## Direct Stream Digital/Transfer (DSDIFF) and wavpack aren't detected
113	## by file(1).
114	dff\|dsf\|wv\|wvc)
115	mediainfo "${FILE_PATH}" && exit 5
116	exiftool "${FILE_PATH}" && exit 5
117	;; # Continue with next handler on failure
118	esac
119	}
120
121	handle_image() {
122	## Size of the preview if there are multiple options or it has to be
123	## rendered from vector graphics. If the conversion program allows
124	## specifying only one dimension while keeping the aspect ratio, the width
125	## will be used.
126	local DEFAULT_SIZE="1920x1080"
127
128	local mimetype="${1}"
129	case "${mimetype}" in
130	## SVG
131	# image/svg+xml\|image/svg)
132	# convert -- "${FILE_PATH}" "${IMAGE_CACHE_PATH}" && exit 6
133	# exit 1;;
134
135	## DjVu
136	# image/vnd.djvu)
137	# ddjvu -format=tiff -quality=90 -page=1 -size="${DEFAULT_SIZE}" \
138	# - "${IMAGE_CACHE_PATH}" < "${FILE_PATH}" \
139	# && exit 6 \|\| exit 1;;
140
141	## Image
142	image/*)
143	local orientation
144	orientation="$( identify -format '%[EXIF:Orientation]\n' -- "${FILE_PATH}" )"
145	## If orientation data is present and the image actually
146	## needs rotating ("1" means no rotation)...
147	if [[ -n "$orientation" && "$orientation" != 1 ]]; then
148	## ...auto-rotate the image according to the EXIF data.
149	convert -- "${FILE_PATH}" -auto-orient "${IMAGE_CACHE_PATH}" && exit 6
150	fi
151
152	## `w3mimgdisplay` will be called for all images (unless overriden
153	## as above), but might fail for unsupported types.
154	exit 7;;
155
156	## Video
157	# video/*)
158	# # Thumbnail
159	# ffmpegthumbnailer -i "${FILE_PATH}" -o "${IMAGE_CACHE_PATH}" -s 0 && exit 6
160	# exit 1;;
161
162	## PDF
163	# application/pdf)
164	# pdftoppm -f 1 -l 1 \
165	# -scale-to-x "${DEFAULT_SIZE%x*}" \
166	# -scale-to-y -1 \
167	# -singlefile \
168	# -jpeg -tiffcompression jpeg \
169	# -- "${FILE_PATH}" "${IMAGE_CACHE_PATH%.*}" \
170	# && exit 6 \|\| exit 1;;
171
172
173	## ePub, MOBI, FB2 (using Calibre)
174	# application/epub+zip\|application/x-mobipocket-ebook\|\
175	# application/x-fictionbook+xml)
176	# # ePub (using https://github.com/marianosimone/epub-thumbnailer)
177	# epub-thumbnailer "${FILE_PATH}" "${IMAGE_CACHE_PATH}" \
178	# "${DEFAULT_SIZE%x*}" && exit 6
179	# ebook-meta --get-cover="${IMAGE_CACHE_PATH}" -- "${FILE_PATH}" \
180	# >/dev/null && exit 6
181	# exit 1;;
182
183	## Font
184	application/font\|application/opentype)
185	preview_png="/tmp/$(basename "${IMAGE_CACHE_PATH%.*}").png"
186	if fontimage -o "${preview_png}" \
187	--pixelsize "120" \
188	--fontname \
189	--pixelsize "80" \
190	--text " ABCDEFGHIJKLMNOPQRSTUVWXYZ " \
191	--text " abcdefghijklmnopqrstuvwxyz " \
192	--text " 0123456789.:,;(*!?') ff fl fi ffi ffl " \
193	--text " The quick brown fox jumps over the lazy dog. " \
194	"${FILE_PATH}";
195	then
196	convert -- "${preview_png}" "${IMAGE_CACHE_PATH}" \
197	&& rm "${preview_png}" \
198	&& exit 6
199	else
200	exit 1
201	fi
202	;;
203
204	## Preview archives using the first image inside.
205	## (Very useful for comic book collections for example.)
206	# application/zip\|application/x-rar\|application/x-7z-compressed\|\
207	# application/x-xz\|application/x-bzip2\|application/x-gzip\|application/x-tar)
208	# local fn=""; local fe=""
209	# local zip=""; local rar=""; local tar=""; local bsd=""
210	# case "${mimetype}" in
211	# application/zip) zip=1 ;;
212	# application/x-rar) rar=1 ;;
213	# application/x-7z-compressed) ;;
214	# *) tar=1 ;;
215	# esac
216	# { [ "$tar" ] && fn=$(tar --list --file "${FILE_PATH}"); } \|\| \
217	# { fn=$(bsdtar --list --file "${FILE_PATH}") && bsd=1 && tar=""; } \|\| \
218	# { [ "$rar" ] && fn=$(unrar lb -p- -- "${FILE_PATH}"); } \|\| \
219	# { [ "$zip" ] && fn=$(zipinfo -1 -- "${FILE_PATH}"); } \|\| return
220	#
221	# fn=$(echo "$fn" \| python -c "import sys; import mimetypes as m; \
222	# [ print(l, end='') for l in sys.stdin if \
223	# (m.guess_type(l[:-1])[0] or '').startswith('image/') ]" \|\
224	# sort -V \| head -n 1)
225	# [ "$fn" = "" ] && return
226	# [ "$bsd" ] && fn=$(printf '%b' "$fn")
227	#
228	# [ "$tar" ] && tar --extract --to-stdout \
229	# --file "${FILE_PATH}" -- "$fn" > "${IMAGE_CACHE_PATH}" && exit 6
230	# fe=$(echo -n "$fn" \| sed 's/[][*?\]/\\\0/g')
231	# [ "$bsd" ] && bsdtar --extract --to-stdout \
232	# --file "${FILE_PATH}" -- "$fe" > "${IMAGE_CACHE_PATH}" && exit 6
233	# [ "$bsd" ] \|\| [ "$tar" ] && rm -- "${IMAGE_CACHE_PATH}"
234	# [ "$rar" ] && unrar p -p- -inul -- "${FILE_PATH}" "$fn" > \
235	# "${IMAGE_CACHE_PATH}" && exit 6
236	# [ "$zip" ] && unzip -pP "" -- "${FILE_PATH}" "$fe" > \
237	# "${IMAGE_CACHE_PATH}" && exit 6
238	# [ "$rar" ] \|\| [ "$zip" ] && rm -- "${IMAGE_CACHE_PATH}"
239	# ;;
240	esac
241
242	# openscad_image() {
243	# TMPPNG="$(mktemp -t XXXXXX.png)"
244	# openscad --colorscheme="${OPENSCAD_COLORSCHEME}" \
245	# --imgsize="${OPENSCAD_IMGSIZE/x/,}" \
246	# -o "${TMPPNG}" "${1}"
247	# mv "${TMPPNG}" "${IMAGE_CACHE_PATH}"
248	# }
249
250	# case "${FILE_EXTENSION_LOWER}" in
251	# ## 3D models
252	# ## OpenSCAD only supports png image output, and ${IMAGE_CACHE_PATH}
253	# ## is hardcoded as jpeg. So we make a tempfile.png and just
254	# ## move/rename it to jpg. This works because image libraries are
255	# ## smart enough to handle it.
256	# csg\|scad)
257	# openscad_image "${FILE_PATH}" && exit 6
258	# ;;
259	# 3mf\|amf\|dxf\|off\|stl)
260	# openscad_image <(echo "import(\"${FILE_PATH}\");") && exit 6
261	# ;;
262	# esac
263	}
264
265	handle_mime() {
266	local mimetype="${1}"
267	case "${mimetype}" in
268	## RTF and DOC
269	text/rtf\|*msword)
270	## Preview as text conversion
271	## note: catdoc does not always work for .doc files
272	## catdoc: http://www.wagner.pp.ru/~vitus/software/catdoc/
273	catdoc -- "${FILE_PATH}" && exit 5
274	exit 1;;
275
276	## DOCX, ePub, FB2 (using markdown)
277	## You might want to remove "\|epub" and/or "\|fb2" below if you have
278	## uncommented other methods to preview those formats
279	wordprocessingml.document\|/epub+zip\|*/x-fictionbook+xml)
280	## Preview as markdown conversion
281	pandoc -s -t markdown -- "${FILE_PATH}" && exit 5
282	exit 1;;
283
284	## XLS
285	*ms-excel)
286	## Preview as csv conversion
287	## xls2csv comes with catdoc:
288	## http://www.wagner.pp.ru/~vitus/software/catdoc/
289	xls2csv -- "${FILE_PATH}" && exit 5
290	exit 1;;
291
292	## Text
293	text/* \| */xml)
294	## Syntax highlight
295	if [[ "$( stat --printf='%s' -- "${FILE_PATH}" )" -gt "${HIGHLIGHT_SIZE_MAX}" ]]; then
296	exit 2
297	fi
298	if [[ "$( tput colors )" -ge 256 ]]; then
299	local pygmentize_format='terminal256'
300	local highlight_format='xterm256'
301	else
302	local pygmentize_format='terminal'
303	local highlight_format='ansi'
304	fi
305	env HIGHLIGHT_OPTIONS="${HIGHLIGHT_OPTIONS}" highlight \
306	--out-format="${highlight_format}" \
307	--force -- "${FILE_PATH}" && exit 5
308	env COLORTERM=8bit bat --color=always --style="plain" \
309	-- "${FILE_PATH}" && exit 5
310	pygmentize -f "${pygmentize_format}" -O "style=${PYGMENTIZE_STYLE}"\
311	-- "${FILE_PATH}" && exit 5
312	exit 2;;
313
314	## DjVu
315	image/vnd.djvu)
316	## Preview as text conversion (requires djvulibre)
317	djvutxt "${FILE_PATH}" \| fmt -w "${PV_WIDTH}" && exit 5
318	exiftool "${FILE_PATH}" && exit 5
319	exit 1;;
320
321	## Image
322	image/*)
323	## Preview as text conversion
324	# img2txt --gamma=0.6 --width="${PV_WIDTH}" -- "${FILE_PATH}" && exit 4
325	exiftool "${FILE_PATH}" && exit 5
326	exit 1;;
327
328	## Video and audio
329	video/* \| audio/*)
330	mediainfo "${FILE_PATH}" && exit 5
331	exiftool "${FILE_PATH}" && exit 5
332	exit 1;;
333	esac
334	}
335
336	handle_fallback() {
337	echo '----- File Type Classification -----' && file --dereference --brief -- "${FILE_PATH}" && exit 5
338	exit 1
339	}
340
341
342	MIMETYPE="$( file --dereference --brief --mime-type -- "${FILE_PATH}" )"
343	if [[ "${PV_IMAGE_ENABLED}" == 'True' ]]; then
344	handle_image "${MIMETYPE}"
345	fi
346	handle_extension
347	handle_mime "${MIMETYPE}"
348	handle_fallback
349
350	exit 1