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telegram-palette-gen
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telegram-palette-gen
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#!/usr/bin/env bash
#
# A script to create Telegram palettes that use colors generated by pywal/wal
# or from a different file containing the hex colors (see the README.md for the
# format of the file).
# Help function called by the --help|-h parameter.
help() {
cat <<EOF
Use the --wal (or -w) parameter if you want to generate a Telegram palette that uses the colors generated by pywal/wal.
Use the --palette (or -p) '/path/to/palette' parameter if you want to generate a Telegram palette that uses the colors from a colorscheme specified in a text file.
Use the --help (or -h) to call this help function.
e.g.
./telegram-palette-gen --wal
./telegram-palette-gen --palette /path/to/palette
EOF
}
# shellcheck source=/dev/null
[[ "$2" && "$1" == --palette || "$1" == -p ]] && mode="palette" && . "$2"
[[ "$1" == --wal || "$1" == -w ]] && mode="wal" && . "${HOME}/.cache/wal/colors.sh"
[[ "$1" == --help || "$1" == -h || -z "$1" ]] && help && exit 0
# Prepare the conditions for the other functions.
prepare() {
rm -rf "${HOME}/.cache/wal-telegram"
rm -rf "${HOME}/.wal-telegram"
pre="${HOME}/.cache/telegram-palette-gen"
mkdir -p "$pre"
rm -f "${pre}/background".*
rm -f "${pre}/colors.tdesktop-palette"
if [[ "$mode" == wal ]]; then
wal_path="$(<"${HOME}/.cache/wal/wal")"
wal_ext="${wal_path##*.}"
cp "$wal_path" "${pre}/background.${wal_ext}"
elif [[ "$mode" == palette ]]; then
if [[ -f "${HOME}/.fehbg" ]]; then
wal_path="$(tail -n1 "${HOME}/.fehbg" \
| awk '{print $3}' \
| sed "s/'//g")"
wal_ext="${wal_path##*.}"
cp "$wal_path" "${pre}/background.${wal_ext}"
fi
fi
}
# Lighten/darken by 20%, 30%, 40%, 50%, 60% some colors using only pure bash.
create_colors() {
colors=(0 1 2 7)
for i in "${colors[@]}"; do
color="color${i}"
c_rgb_12d="$(( 0x"${!color:1:2}" ))"
c_rgb_34d="$(( 0x"${!color:3:2}" ))"
c_rgb_56d="$(( 0x"${!color:5:2}" ))"
c_rgb_12d_20l="$(( c_rgb_12d + "$((c_rgb_12d / 5))" ))"
c_rgb_34d_20l="$(( c_rgb_34d + "$((c_rgb_34d / 5))" ))"
c_rgb_56d_20l="$(( c_rgb_56d + "$((c_rgb_56d / 5))" ))"
[[ "${c_rgb_12d_20l}" -ge 255 ]] && c_rgb_12d_20l=255
[[ "${c_rgb_34d_20l}" -ge 255 ]] && c_rgb_34d_20l=255
[[ "${c_rgb_56d_20l}" -ge 255 ]] && c_rgb_56d_20l=255
printf -v c_hex_12d_20l '%x' "$c_rgb_12d_20l"
printf -v c_hex_34d_20l '%x' "$c_rgb_34d_20l"
printf -v c_hex_56d_20l '%x' "$c_rgb_56d_20l"
[[ "${#c_hex_12d_20l}" -eq 1 ]] && c_hex_12d_20l="0${c_hex_12d_20l}"
[[ "${#c_hex_34d_20l}" -eq 1 ]] && c_hex_34d_20l="0${c_hex_34d_20l}"
[[ "${#c_hex_56d_20l}" -eq 1 ]] && c_hex_56d_20l="0${c_hex_56d_20l}"
c_hex_20l="#${c_hex_12d_20l}${c_hex_34d_20l}${c_hex_56d_20l}"
declare -g color"${i}"_lighter_20="$c_hex_20l"
c_rgb_12d_30l="$(( c_rgb_12d + "$((c_rgb_12d * 3 / 10))" ))"
c_rgb_34d_30l="$(( c_rgb_34d + "$((c_rgb_34d * 3 / 10))" ))"
c_rgb_56d_30l="$(( c_rgb_56d + "$((c_rgb_56d * 3 / 10))" ))"
[[ "${c_rgb_12d_30l}" -ge 255 ]] && c_rgb_12d_30l=255
[[ "${c_rgb_34d_30l}" -ge 255 ]] && c_rgb_34d_30l=255
[[ "${c_rgb_56d_30l}" -ge 255 ]] && c_rgb_56d_30l=255
printf -v c_hex_12d_30l '%x' "$c_rgb_12d_30l"
printf -v c_hex_34d_30l '%x' "$c_rgb_34d_30l"
printf -v c_hex_56d_30l '%x' "$c_rgb_56d_30l"
[[ "${#c_hex_12d_30l}" -eq 1 ]] && c_hex_12d_30l="0${c_hex_12d_30l}"
[[ "${#c_hex_34d_30l}" -eq 1 ]] && c_hex_34d_30l="0${c_hex_34d_30l}"
[[ "${#c_hex_56d_30l}" -eq 1 ]] && c_hex_56d_30l="0${c_hex_56d_30l}"
c_hex_30l="#${c_hex_12d_30l}${c_hex_34d_30l}${c_hex_56d_30l}"
declare -g color"${i}"_lighter_30="$c_hex_30l"
c_rgb_12d_40l="$(( c_rgb_12d + "$((c_rgb_12d * 2 / 5))" ))"
c_rgb_34d_40l="$(( c_rgb_34d + "$((c_rgb_34d * 2 / 5))" ))"
c_rgb_56d_40l="$(( c_rgb_56d + "$((c_rgb_56d * 2 / 5))" ))"
[[ "${c_rgb_12d_40l}" -ge 255 ]] && c_rgb_12d_40l=255
[[ "${c_rgb_34d_40l}" -ge 255 ]] && c_rgb_34d_40l=255
[[ "${c_rgb_56d_40l}" -ge 255 ]] && c_rgb_56d_40l=255
printf -v c_hex_12d_40l '%x' "$c_rgb_12d_40l"
printf -v c_hex_34d_40l '%x' "$c_rgb_34d_40l"
printf -v c_hex_56d_40l '%x' "$c_rgb_56d_40l"
[[ "${#c_hex_12d_40l}" -eq 1 ]] && c_hex_12d_40l="0${c_hex_12d_40l}"
[[ "${#c_hex_34d_40l}" -eq 1 ]] && c_hex_34d_40l="0${c_hex_34d_40l}"
[[ "${#c_hex_56d_40l}" -eq 1 ]] && c_hex_56d_40l="0${c_hex_56d_40l}"
c_hex_40l="#${c_hex_12d_40l}${c_hex_34d_40l}${c_hex_56d_40l}"
declare -g color"${i}"_lighter_40="$c_hex_40l"
c_rgb_12d_50l="$(( c_rgb_12d + "$((c_rgb_12d / 2))" ))"
c_rgb_34d_50l="$(( c_rgb_34d + "$((c_rgb_34d / 2))" ))"
c_rgb_56d_50l="$(( c_rgb_56d + "$((c_rgb_56d / 2))" ))"
[[ "${c_rgb_12d_50l}" -ge 255 ]] && c_rgb_12d_50l=255
[[ "${c_rgb_34d_50l}" -ge 255 ]] && c_rgb_34d_50l=255
[[ "${c_rgb_56d_50l}" -ge 255 ]] && c_rgb_56d_50l=255
printf -v c_hex_12d_50l '%x' "$c_rgb_12d_50l"
printf -v c_hex_34d_50l '%x' "$c_rgb_34d_50l"
printf -v c_hex_56d_50l '%x' "$c_rgb_56d_50l"
[[ "${#c_hex_12d_50l}" -eq 1 ]] && c_hex_12d_50l="0${c_hex_12d_50l}"
[[ "${#c_hex_34d_50l}" -eq 1 ]] && c_hex_34d_50l="0${c_hex_34d_50l}"
[[ "${#c_hex_56d_50l}" -eq 1 ]] && c_hex_56d_50l="0${c_hex_56d_50l}"
c_hex_50l="#${c_hex_12d_50l}${c_hex_34d_50l}${c_hex_56d_50l}"
declare -g color"${i}"_lighter_50="$c_hex_50l"
c_rgb_12d_60l="$(( c_rgb_12d + "$((c_rgb_12d * 3 / 5))" ))"
c_rgb_34d_60l="$(( c_rgb_34d + "$((c_rgb_34d * 3 / 5))" ))"
c_rgb_56d_60l="$(( c_rgb_56d + "$((c_rgb_56d * 3 / 5))" ))"
[[ "${c_rgb_12d_60l}" -ge 255 ]] && c_rgb_12d_60l=255
[[ "${c_rgb_34d_60l}" -ge 255 ]] && c_rgb_34d_60l=255
[[ "${c_rgb_56d_60l}" -ge 255 ]] && c_rgb_56d_60l=255
printf -v c_hex_12d_60l '%x' "$c_rgb_12d_60l"
printf -v c_hex_34d_60l '%x' "$c_rgb_34d_60l"
printf -v c_hex_56d_60l '%x' "$c_rgb_56d_60l"
[[ "${#c_hex_12d_60l}" -eq 1 ]] && c_hex_12d_60l="0${c_hex_12d_60l}"
[[ "${#c_hex_34d_60l}" -eq 1 ]] && c_hex_34d_60l="0${c_hex_34d_60l}"
[[ "${#c_hex_56d_60l}" -eq 1 ]] && c_hex_56d_60l="0${c_hex_56d_60l}"
c_hex_60l="#${c_hex_12d_60l}${c_hex_34d_60l}${c_hex_56d_60l}"
declare -g color"${i}"_lighter_60="$c_hex_60l"
c_rgb_12d_20d="$(( c_rgb_12d - "$((c_rgb_12d / 5))" ))"
c_rgb_34d_20d="$(( c_rgb_34d - "$((c_rgb_34d / 5))" ))"
c_rgb_56d_20d="$(( c_rgb_56d - "$((c_rgb_56d / 5))" ))"
printf -v c_hex_12d_20d '%x' "$c_rgb_12d_20d"
printf -v c_hex_34d_20d '%x' "$c_rgb_34d_20d"
printf -v c_hex_56d_20d '%x' "$c_rgb_56d_20d"
[[ "${#c_hex_12d_20d}" -eq 1 ]] && c_hex_12d_20d="0${c_hex_12d_20d}"
[[ "${#c_hex_34d_20d}" -eq 1 ]] && c_hex_34d_20d="0${c_hex_34d_20d}"
[[ "${#c_hex_56d_20d}" -eq 1 ]] && c_hex_56d_20d="0${c_hex_56d_20d}"
c_hex_20d="#${c_hex_12d_20d}${c_hex_34d_20d}${c_hex_56d_20d}"
declare -g color"${i}"_darker_20="$c_hex_20d"
c_rgb_12d_30d="$(( c_rgb_12d - "$((c_rgb_12d * 3 / 10))" ))"
c_rgb_34d_30d="$(( c_rgb_34d - "$((c_rgb_34d * 3 / 10))" ))"
c_rgb_56d_30d="$(( c_rgb_56d - "$((c_rgb_56d * 3 / 10))" ))"
printf -v c_hex_12d_30d '%x' "$c_rgb_12d_30d"
printf -v c_hex_34d_30d '%x' "$c_rgb_34d_30d"
printf -v c_hex_56d_30d '%x' "$c_rgb_56d_30d"
[[ "${#c_hex_12d_30d}" -eq 1 ]] && c_hex_12d_30d="0${c_hex_12d_30d}"
[[ "${#c_hex_34d_30d}" -eq 1 ]] && c_hex_34d_30d="0${c_hex_34d_30d}"
[[ "${#c_hex_56d_30d}" -eq 1 ]] && c_hex_56d_30d="0${c_hex_56d_30d}"
c_hex_30d="#${c_hex_12d_30d}${c_hex_34d_30d}${c_hex_56d_30d}"
declare -g color"${i}"_darker_30="$c_hex_30d"
c_rgb_12d_40d="$(( c_rgb_12d - "$((c_rgb_12d * 2 / 5))" ))"
c_rgb_34d_40d="$(( c_rgb_34d - "$((c_rgb_34d * 2 / 5))" ))"
c_rgb_56d_40d="$(( c_rgb_56d - "$((c_rgb_56d * 2 / 5))" ))"
printf -v c_hex_12d_40d '%x' "$c_rgb_12d_40d"
printf -v c_hex_34d_40d '%x' "$c_rgb_34d_40d"
printf -v c_hex_56d_40d '%x' "$c_rgb_56d_40d"
[[ "${#c_hex_12d_40d}" -eq 1 ]] && c_hex_12d_40d="0${c_hex_12d_40d}"
[[ "${#c_hex_34d_40d}" -eq 1 ]] && c_hex_34d_40d="0${c_hex_34d_40d}"
[[ "${#c_hex_56d_40d}" -eq 1 ]] && c_hex_56d_40d="0${c_hex_56d_40d}"
c_hex_40d="#${c_hex_12d_40d}${c_hex_34d_40d}${c_hex_56d_40d}"
declare -g color"${i}"_darker_40="$c_hex_40d"
c_rgb_12d_50d="$(( c_rgb_12d - "$((c_rgb_12d / 2))" ))"
c_rgb_34d_50d="$(( c_rgb_34d - "$((c_rgb_34d / 2))" ))"
c_rgb_56d_50d="$(( c_rgb_56d - "$((c_rgb_56d / 2))" ))"
printf -v c_hex_12d_50d '%x' "$c_rgb_12d_50d"
printf -v c_hex_34d_50d '%x' "$c_rgb_34d_50d"
printf -v c_hex_56d_50d '%x' "$c_rgb_56d_50d"
[[ "${#c_hex_12d_50d}" -eq 1 ]] && c_hex_12d_50d="0${c_hex_12d_50d}"
[[ "${#c_hex_34d_50d}" -eq 1 ]] && c_hex_34d_50d="0${c_hex_34d_50d}"
[[ "${#c_hex_56d_50d}" -eq 1 ]] && c_hex_56d_50d="0${c_hex_56d_50d}"
c_hex_50d="#${c_hex_12d_50d}${c_hex_34d_50d}${c_hex_56d_50d}"
declare -g color"${i}"_darker_50="$c_hex_50d"
c_rgb_12d_60d="$(( c_rgb_12d - "$((c_rgb_12d * 3 / 5))" ))"
c_rgb_34d_60d="$(( c_rgb_34d - "$((c_rgb_34d * 3 / 5))" ))"
c_rgb_56d_60d="$(( c_rgb_56d - "$((c_rgb_56d * 3 / 5))" ))"
printf -v c_hex_12d_60d '%x' "$c_rgb_12d_60d"
printf -v c_hex_34d_60d '%x' "$c_rgb_34d_60d"
printf -v c_hex_56d_60d '%x' "$c_rgb_56d_60d"
[[ "${#c_hex_12d_60d}" -eq 1 ]] && c_hex_12d_60d="0${c_hex_12d_60d}"
[[ "${#c_hex_34d_60d}" -eq 1 ]] && c_hex_34d_60d="0${c_hex_34d_60d}"
[[ "${#c_hex_56d_60d}" -eq 1 ]] && c_hex_56d_60d="0${c_hex_56d_60d}"
c_hex_60d="#${c_hex_12d_60d}${c_hex_34d_60d}${c_hex_56d_60d}"
declare -g color"${i}"_darker_60="$c_hex_60d"
done
}
# Create colors.tdesktop-palette using the colors generated by create_colors()
# and the colors.tpg-constants file.
create_palette() {
cat <<EOF > "${pre}/colors.tdesktop-palette"
// Colors imported by telegram-palette-gen.
color0: $color0;
color1: $color1;
color2: $color2;
color3: $color3;
color4: $color4;
color5: $color5;
color6: $color6;
color7: $color7;
color8: $color8;
// Lighter and darker variants of the colors.
colorLighter0_20: $color0_lighter_20;
colorLighter0_30: $color0_lighter_30;
colorLighter0_40: $color0_lighter_40;
colorLighter0_50: $color0_lighter_50;
colorLighter0_60: $color0_lighter_60;
colorDarker0_20: $color0_darker_20;
colorDarker0_30: $color0_darker_30;
colorDarker0_40: $color0_darker_40;
colorDarker0_50: $color0_darker_50;
colorDarker0_60: $color0_darker_60;
colorLighter1_20: $color1_lighter_20;
colorLighter1_30: $color1_lighter_30;
colorLighter1_40: $color1_lighter_40;
colorLighter1_50: $color1_lighter_50;
colorLighter1_60: $color1_lighter_60;
colorDarker1_20: $color1_darker_20;
colorDarker1_30: $color1_darker_30;
colorDarker1_40: $color1_darker_40;
colorDarker1_50: $color1_darker_50;
colorDarker1_60: $color1_darker_60;
colorLighter2_20: $color2_lighter_20;
colorLighter2_30: $color2_lighter_30;
colorLighter2_40: $color2_lighter_40;
colorLighter2_50: $color2_lighter_50;
colorLighter2_60: $color2_lighter_60;
colorDarker2_20: $color2_darker_20;
colorDarker2_30: $color2_darker_30;
colorDarker2_40: $color2_darker_40;
colorDarker2_50: $color2_darker_50;
colorDarker2_60: $color2_darker_60;
colorLighter7_20: $color7_lighter_20;
colorLighter7_30: $color7_lighter_30;
colorLighter7_40: $color7_lighter_40;
colorLighter7_50: $color7_lighter_50;
colorLighter7_60: $color7_lighter_60;
colorDarker7_20: $color7_darker_20;
colorDarker7_30: $color7_darker_30;
colorDarker7_40: $color7_darker_40;
colorDarker7_50: $color7_darker_50;
colorDarker7_60: $color7_darker_60;
// Alpha colors.
colorAlpha0_18: ${color0}18;
colorAlpha0_3c: ${color0}3c;
colorAlpha0_03: ${color0}03;
colorAlpha0_7f: ${color0}7f;
colorAlpha0_b0: ${color0}b0;
colorAlpha0_cc: ${color0}cc;
colorAlpha0_00: ${color0}00;
colorAlpha0_54: ${color0}54;
colorAlpha0_56: ${color0}56;
colorAlpha0_74: ${color0}74;
colorAlpha0_40: ${color0}40;
colorAlpha0_4c: ${color0}4c;
colorAlpha0_b2: ${color0}b2;
colorAlpha0_40: ${color0}40;
colorAlpha1_10: ${color1}10;
colorAlpha1_33: ${color1}33;
colorAlpha2_c8: ${color2}c8;
colorAlpha2_4c: ${color2}4c;
colorAlpha2_7f: ${color2}7f;
colorAlpha2_00: ${color2}00;
colorAlpha2_87: ${color2}87;
colorAlpha3_64: ${color3}64;
colorAlpha7_53: ${color7}53;
colorAlpha7_7a: ${color7}7a;
colorAlpha7_1a: ${color7}1a;
colorAlpha7_2c: ${color7}2c;
colorAlpha7_7f: ${color7}7f;
colorAlpha7_bc: ${color7}bc;
colorAlpha7_4c: ${color7}4c;
colorAlpha7_6b: ${color7}6b;
colorAlpha7_14: ${color7}14;
EOF
script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
const="$(<"${script_dir}/colors.tpg-constants")"
printf '%s' "$const" >> "${pre}/colors.tdesktop-palette"
}
main() {
prepare
create_colors
create_palette
printf '%b\n' "\\e[1;31m::\\e[0m \\e[1;37mPalette generated succesfully.\\e[0m"
}
main