diff options
| -rwxr-xr-x | fedora/.local/bin/chafa | bin | 0 -> 7175232 bytes | |||
| -rwxr-xr-x | fedora/.local/bin/imgcat | 274 |
2 files changed, 274 insertions, 0 deletions
diff --git a/fedora/.local/bin/chafa b/fedora/.local/bin/chafa Binary files differnew file mode 100755 index 0000000..89b4c96 --- /dev/null +++ b/fedora/.local/bin/chafa diff --git a/fedora/.local/bin/imgcat b/fedora/.local/bin/imgcat new file mode 100755 index 0000000..af50702 --- /dev/null +++ b/fedora/.local/bin/imgcat @@ -0,0 +1,274 @@ +#!/usr/bin/env bash + +set -o pipefail + +# tmux requires unrecognized OSC sequences to be wrapped with DCS tmux; +# <sequence> ST, and for all ESCs in <sequence> to be replaced with ESC ESC. It +# only accepts ESC backslash for ST. We use TERM instead of TMUX because TERM +# gets passed through ssh. +function print_osc() { + if [[ $TERM == screen* || $TERM == tmux* ]]; then + printf "\033Ptmux;\033\033]" + else + printf "\033]" + fi +} + +# More of the tmux workaround described above. +function print_st() { + if [[ $TERM == screen* || $TERM == tmux* ]]; then + printf "\a\033\\" + else + printf "\a" + fi +} + +function load_version() { + if [ -z ${IMGCAT_BASE64_VERSION+x} ]; then + IMGCAT_BASE64_VERSION=$(base64 --version 2>&1) + export IMGCAT_BASE64_VERSION + fi +} + +function b64_encode() { + load_version + if [[ $IMGCAT_BASE64_VERSION =~ GNU ]]; then + # Disable line wrap + base64 -w0 + else + base64 + fi +} + +function b64_decode() { + load_version + if [[ $IMGCAT_BASE64_VERSION =~ fourmilab ]]; then + BASE64ARG=-d + elif [[ $IMGCAT_BASE64_VERSION =~ GNU ]]; then + BASE64ARG=-di + else + BASE64ARG=-D + fi + base64 $BASE64ARG +} + +# print_image filename inline base64contents print_filename width height preserve_aspect_ratio +# filename: Filename to convey to client +# inline: 0 or 1, if set to 1, the file will be displayed inline, otherwise, it will be downloaded +# base64contents: Base64-encoded contents +# print_filename: 0 or 1, if set to 1, print the filename after outputting the image +# width: set output width of the image in character cells, pixels or percent +# height: set output height of the image in character cells, pixels or percent +# preserve_aspect_ratio: 0 or 1, if set to 1, fill the specified width and height as much as possible without stretching the image +# file: Empty string or file type like "application/json" or ".js". +# legacy: 1 to send one giant control sequence, 0 to send many small control sequences. +function print_image() { + # Send metadata to begin transfer. + print_osc + printf "1337;" + if [[ "$9" -eq 1 ]]; then + printf "File" + else + printf "MultipartFile" + fi + printf "=inline=%s" "$2" + printf ";size=%d" $(printf "%s" "$3" | b64_decode | wc -c) + [ -n "$1" ] && printf ";name=%s" "$(printf "%s" "$1" | b64_encode)" + [ -n "$5" ] && printf ";width=%s" "$5" + [ -n "$6" ] && printf ";height=%s" "$6" + [ -n "$7" ] && printf ";preserveAspectRatio=%s" "$7" + [ -n "$8" ] && printf ";type=%s" "$8" + if [[ "$9" -eq 1 ]]; then + printf ":%s" "$3" + print_st + else + print_st + + # Split into 200-byte chunks. This helps it get through tmux. + parts=$(printf "%s" "$3" | fold -w 200) + + # Send each part. + for part in $parts; do + print_osc + printf '1337;FilePart=%s' "$part" + print_st + done + + # Indicate completion + print_osc + printf '1337;FileEnd' + print_st + fi + + printf '\n' + [ "$4" == "1" ] && echo "$1" + has_image_displayed=t +} + +function error() { + errcho "ERROR: $*" +} + +function errcho() { + echo "$@" >&2 +} + +function show_help() { + errcho + errcho "Usage: imgcat [-p] [-n] [-W width] [-H height] [-r] [-s] [-u] [-t file-type] [-f] filename ..." + errcho " cat filename | imgcat [-W width] [-H height] [-r] [-s]" + errcho + errcho "Display images inline in the iTerm2 using Inline Images Protocol" + errcho + errcho "Options:" + errcho + errcho " -h, --help Display help message" + errcho " -p, --print Enable printing of filename or URL after each image" + errcho " -n, --no-print Disable printing of filename or URL after each image" + errcho " -u, --url Interpret following filename arguments as remote URLs" + errcho " -f, --file Interpret following filename arguments as regular Files" + errcho " -t, --type file-type Provides a type hint" + errcho " -r, --preserve-aspect-ratio When scaling image preserve its original aspect ratio" + errcho " -s, --stretch Stretch image to specified width and height (this option is opposite to -r)" + errcho " -W, --width N Set image width to N character cells, pixels or percent (see below)" + errcho " -H, --height N Set image height to N character cells, pixels or percent (see below)" + errcho " -l, --legacy Use legacy protocol that sends the whole image in a single control sequence" + errcho + errcho " If you don't specify width or height an appropriate value will be chosen automatically." + errcho " The width and height are given as word 'auto' or number N followed by a unit:" + errcho " N character cells" + errcho " Npx pixels" + errcho " N% percent of the session's width or height" + errcho " auto the image's inherent size will be used to determine an appropriate dimension" + errcho + errcho " If a type is provided, it is used as a hint to disambiguate." + errcho " The file type can be a mime type like text/markdown, a language name like Java, or a file extension like .c" + errcho " The file type can usually be inferred from the extension or its contents. -t is most useful when" + errcho " a filename is not available, such as whe input comes from a pipe." + errcho + errcho "Examples:" + errcho + errcho " $ imgcat -W 250px -H 250px -s avatar.png" + errcho " $ cat graph.png | imgcat -W 100%" + errcho " $ imgcat -p -W 500px -u http://host.tld/path/to/image.jpg -W 80 -f image.png" + errcho " $ cat url_list.txt | xargs imgcat -p -W 40 -u" + errcho " $ imgcat -t application/json config.json" + errcho +} + +function check_dependency() { + if ! (builtin command -V "$1" >/dev/null 2>&1); then + error "missing dependency: can't find $1" + exit 1 + fi +} + +# verify that value is in the image sizing unit format: N / Npx / N% / auto +function validate_size_unit() { + if [[ ! "$1" =~ ^(:?[0-9]+(:?px|%)?|auto)$ ]]; then + error "Invalid image sizing unit - '$1'" + show_help + exit 1 + fi +} + +## Main + +if [ -t 0 ]; then + has_stdin=f +else + has_stdin=t +fi + +# Show help if no arguments and no stdin. +if [ $has_stdin = f ] && [ $# -eq 0 ]; then + show_help + exit +fi + +check_dependency base64 +check_dependency wc +file_type="" +legacy=0 + +# Look for command line flags. +while [ $# -gt 0 ]; do + case "$1" in + -h | --h | --help) + show_help + exit + ;; + -p | --p | --print) + print_filename=1 + ;; + -n | --n | --no-print) + print_filename=0 + ;; + -W | --W | --width) + validate_size_unit "$2" + width="$2" + shift + ;; + -H | --H | --height) + validate_size_unit "$2" + height="$2" + shift + ;; + -r | --r | --preserve-aspect-ratio) + preserve_aspect_ratio=1 + ;; + -s | --s | --stretch) + preserve_aspect_ratio=0 + ;; + -l | --l | --legacy) + legacy=1 + ;; + -f | --f | --file) + has_stdin=f + is_url=f + ;; + -u | --u | --url) + check_dependency curl + has_stdin=f + is_url=t + ;; + -t | --t | --type) + file_type="$2" + shift + ;; + -*) + error "Unknown option flag: $1" + show_help + exit 1 + ;; + *) + if [ "$is_url" == "t" ]; then + encoded_image=$(curl -fs "$1" | b64_encode) || { + error "Could not retrieve image from URL $1, error_code: $?" + exit 2 + } + elif [ -r "$1" ]; then + encoded_image=$(cat "$1" | b64_encode) + else + error "imgcat: $1: No such file or directory" + exit 2 + fi + has_stdin=f + print_image "$1" 1 "$encoded_image" "$print_filename" "$width" "$height" "$preserve_aspect_ratio" "$file_type" "$legacy" + ;; + esac + shift +done + +# Read and print stdin +if [ $has_stdin = t ]; then + print_image "" 1 "$(cat | b64_encode)" 0 "$width" "$height" "$preserve_aspect_ratio" "$file_type" "$legacy" +fi + +if [ "$has_image_displayed" != "t" ]; then + error "No image provided. Check command line options." + show_help + exit 1 +fi + +exit 0 |