zed/crates/terminal/truecolor.sh

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2022-07-01 02:21:42 +00:00
#!/bin/bash
# Copied from: https://unix.stackexchange.com/a/696756
# Based on: https://gist.github.com/XVilka/8346728 and https://unix.stackexchange.com/a/404415/395213
awk -v term_cols="${width:-$(tput cols || echo 80)}" -v term_lines="${height:-1}" 'BEGIN{
s="/\\";
total_cols=term_cols*term_lines;
for (colnum = 0; colnum<total_cols; colnum++) {
r = 255-(colnum*255/total_cols);
g = (colnum*510/total_cols);
b = (colnum*255/total_cols);
if (g>255) g = 510-g;
printf "\033[48;2;%d;%d;%dm", r,g,b;
printf "\033[38;2;%d;%d;%dm", 255-r,255-g,255-b;
printf "%s\033[0m", substr(s,colnum%2+1,1);
if (colnum%term_cols==term_cols) printf "\n";
}
printf "\n";
}'