-110

bin/bud

Reviewed

··· 1 1 - #!/bin/sh -f 2 2 - # 3 3 - # pywalesque posix sh alternative. 4 4 - 5 5 - img() { 6 6 - [ -d "$1" ] && { 7 7 - set +f 8 8 - set -f -- "$1/"* 9 9 - int="$(shuf -i "1-$#" -n 1)" 10 10 - shift $(expr $int - 1) 11 11 - } 12 12 - 13 13 - [ -f "${img:=$1}" ] || exit 1 14 14 - 15 15 - printf '%s\n' "$img" 16 16 - } 17 17 - 18 18 - hex2rgb() { 19 19 - set -- "${1##\#}" 20 20 - 21 21 - r=${1%%????} 22 22 - g=${1##??} 23 23 - g=${g%%??} 24 24 - b=${1##????} 25 25 - 26 26 - r=$((0x$r)) 27 27 - g=$((0x$g)) 28 28 - b=$((0x$b)) 29 29 - } 30 30 - 31 31 - mod() { 32 32 - hex2rgb "$2" 33 33 - 34 34 - # The operator is stored in a variable 35 35 - # which makes shellcheck freak out. 36 36 - # shellcheck disable=1102,2086 37 37 - { 38 38 - r=$((r $3 $4)) 39 39 - g=$((g $3 $4)) 40 40 - b=$((b $3 $4)) 41 41 - } 42 42 - 43 43 - r=$((r > 255 ? 255 : r < 0 ? 0 : r)) 44 44 - g=$((g > 255 ? 255 : g < 0 ? 0 : g)) 45 45 - b=$((b > 255 ? 255 : b < 0 ? 0 : b)) 46 46 - 47 47 - export "$1=$(printf '%02x%02x%02x' "$r" "$g" "$b")" 48 48 - } 49 49 - 50 50 - col() { 51 51 - cache_file=$(printf %s "$img" | base64) 52 52 - 53 53 - # Backticks need to be used here to fix bugs in 54 54 - # some specific POSIX shells. 55 55 - # 56 56 - # Word splitting is also intentional and safe here. 57 57 - # shellcheck disable=2046,2006 58 58 - if [ -f "$cache_dir/$cache_file" ]; then 59 59 - paleta < "$cache_dir/$cache_file" & 60 60 - 61 61 - else 62 62 - set -- `\ 63 63 - convert "$img" \ 64 64 - -alpha off \ 65 65 - -resize 64x64 \ 66 66 - -posterize 16 \ 67 67 - -fill white \ 68 68 - -colorize 30% \ 69 69 - -modulate 125,175,100 \ 70 70 - -unique-colors \ 71 71 - txt:- | 72 72 - while IFS='# ' read -r _ _ col _; do 73 73 - i=$((i+1)) 74 74 - [ "$i" -lt 11 ] && continue 75 75 - [ "$i" -gt 16 ] && continue 76 76 - printf '%s\n' "$col" 77 77 - done 78 78 - ` 79 79 - 80 80 - # These variables are dynamically defined, 81 81 - # ignore undeclared variable warnings. 82 82 - # shellcheck disable=2154 83 83 - { 84 84 - mod bg "$2" / 4 85 85 - mod fg "$2" + 150 86 86 - mod co "$bg" + 125 87 87 - 88 88 - set -- "$bg" "$@" "$fg" "$co" "$@" "$fg" 89 89 - } 90 90 - 91 91 - printf '%s\n' "$@" | paleta & 92 92 - printf '%s\n' "$@" > "$cache_dir/$cache_file" 93 93 - fi 94 94 - } 95 95 - 96 96 - main() { 97 97 - mkdir -p "${cache_dir:=${XDG_CACHE_HOME:=${HOME}/.cache}/bud}" 98 98 - 99 99 - img "$1" 100 100 - 101 101 - display \ 102 102 - -page 3200x \ 103 103 - -sample 3200x \ 104 104 - -window root \ 105 105 - "$img" & 106 106 - 107 107 - col & 108 108 - } 109 109 - 110 110 - main "$1"

-101

bin/paleta

Reviewed

··· 1 1 - #!/usr/bin/env bash 2 2 - # 3 3 - # paleta - change terminal colors on the fly. 4 4 - 5 5 - read_input() { 6 6 - [[ $1 == -v ]] && { 7 7 - printf 'paleta 1.0.0\n' 8 8 - exit 9 9 - } 10 10 - 11 11 - [[ $1 == -r ]] && { 12 12 - load_sequences 13 13 - exit 14 14 - } 15 15 - 16 16 - # Input from space separated arguments. 17 17 - [[ $1 ]] && { 18 18 - input=("$@") 19 19 - 20 20 - # Input from single string. 21 21 - ((${#input[@]} == 1 && ${#input[0]} > 7)) && 22 22 - read -ra input <<< "${input[*]}" 23 23 - 24 24 - # Input from file argument. 25 25 - (($# == 1)) && [[ -f $1 ]] && 26 26 - IFS=$'\n ' read -d "" -ra input < "$1" 27 27 - } 28 28 - 29 29 - # Input from stdin. 30 30 - [[ $1 ]] || IFS=$'\n ' read -d "" -ra input </dev/stdin 31 31 - 32 32 - [[ $* == *-* || -z $1 && -z ${input[0]} ]] && { 33 33 - printf 'usage: paleta -r, paleta [colors], paleta file\n' 34 34 - printf ' - [colors] a space separated list of hex colors.\n' 35 35 - exit 1 36 36 - } 37 37 - } 38 38 - 39 39 - parse_colors() { 40 40 - ((${#input[@]} > 16)) && 41 41 - printf 'warn: Too many colors specified, ignoring past 16th.\n' >&2 42 42 - 43 43 - ((${#input[@]} < 16)) && 44 44 - printf 'warn: Too few colors given, repeating last color.\n' >&2 45 45 - 46 46 - for ((i=0; i<16; i++)); { 47 47 - [[ ${input[i]:-000000} =~ ^#?[a-fA-F0-9]{6}$ ]] || { 48 48 - printf '%s\n' "error: Color [$((i+1))] isn't a valid hex color." >&2 49 49 - exit 1 50 50 - } 51 51 - 52 52 - # Use the last defined color for all colors if less than 53 53 - # 16 colors were given as input. 54 54 - colors[i]=${input[i]:-${input[-1]}} 55 55 - colors[i]=\#${colors[i]//\#} 56 56 - } 57 57 - } 58 58 - 59 59 - make_sequences() { 60 60 - # Colors 0-15. 61 61 - for ((i=0;i<${#colors[@]};i++)) { 62 62 - sequences+="]4;${i};${colors[i]}\\" 63 63 - } 64 64 - 65 65 - # 10: Foreground color, 66 66 - # 11: Background color, 67 67 - # 12: Cursor Foreground color. 68 68 - # Source: https://goo.gl/KcoQgP 69 69 - sequences+="]10;${colors[15]}\\" 70 70 - sequences+="]11;${colors[0]}\\" 71 71 - sequences+="]12;${colors[15]}\\" 72 72 - 73 73 - # Border Background color (URxvt). 74 74 - # (VTE doesn't handle unknown sequences very well. 75 75 - # Skip this sequence if running in VTE.) 76 76 - [[ $VTE_VERSION ]] || sequences+="]708;${colors[0]}\\" 77 77 - } 78 78 - 79 79 - send_sequences() { 80 80 - for tty in /dev/pts/[0-9]*; do 81 81 - [[ -w $tty ]] && printf %b "$sequences" > "$tty" & 82 82 - done 83 83 - 84 84 - printf %b "$sequences" > "$cache_dir/colors" 85 85 - } 86 86 - 87 87 - load_sequences() { 88 88 - [[ -f $cache_dir/colors ]] && 89 89 - printf %b "$(< "${cache_dir}/colors")" 90 90 - } 91 91 - 92 92 - main() { 93 93 - mkdir -p "${cache_dir:=${XDG_CACHE_HOME:=${HOME}/.cache}/paleta}" 94 94 - 95 95 - read_input "$@" 96 96 - parse_colors 97 97 - make_sequences 98 98 - send_sequences & 99 99 - } 100 100 - 101 101 - main "$@"