130 lines
3.0 KiB
Bash
Executable File
130 lines
3.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# Set default modes
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json_mode=0
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alpha_mode=0
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name_mode=0
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# Function to display help message
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show_help() {
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cat <<EOF
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Usage: ${0##*/} [OPTIONS] [HEX_COLOR ...]
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Convert hex color codes to RGB/RGBA and show a preview.
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Options:
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--pick Pick a color using wl-colorpicker-plasma
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--alpha Interpret 8-digit hex codes (RRGGBBAA) and include alpha
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--json Output in JSON format: {"hex":"#rrggbb","rgb":[r,g,b]}
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--name Lookup and display nearest color name using thecolorapi.com
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Requires: curl, jq, internet access
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--help, -h Show this help message
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Examples:
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${0##*/} "#534145" "#433f43"
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echo "#123456" | ${0##*/}
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${0##*/} --pick --alpha --json --name
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EOF
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}
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hex_to_rgba() {
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local hex="$1"
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local clean_hex="${hex#\#}"
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# Validate and normalize hex
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if [[ "$clean_hex" =~ ^[0-9A-Fa-f]{6}$ ]]; then
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clean_hex="${clean_hex}FF" # Assume full opacity
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elif [[ "$clean_hex" =~ ^[0-9A-Fa-f]{8}$ ]]; then
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: # already has alpha
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else
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echo "Invalid hex color: $hex" >&2
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return 1
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fi
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local r=$((16#${clean_hex:0:2}))
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local g=$((16#${clean_hex:2:2}))
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local b=$((16#${clean_hex:4:2}))
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local a=$((16#${clean_hex:6:2}))
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local name=""
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if [[ $name_mode -eq 1 ]]; then
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local api="https://www.thecolorapi.com/id?hex=${clean_hex:0:6}"
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name=$(curl -s "$api" | jq -r '.name.value // empty')
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fi
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if [[ $json_mode -eq 1 ]]; then
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if [[ $alpha_mode -eq 1 ]]; then
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printf '{"hex":"#%s","rgba":[%d,%d,%d,%d]' "$clean_hex" "$r" "$g" "$b" "$a"
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else
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printf '{"hex":"#%s","rgb":[%d,%d,%d]' "${clean_hex:0:6}" "$r" "$g" "$b"
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fi
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[[ -n "$name" ]] && printf ',"name":"%s"' "$name"
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echo "}"
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else
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if [[ $alpha_mode -eq 1 ]]; then
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printf "\033[2mHEX:\033[0m #%s \033[2m→ RGBA(\033[0m%3d, %3d, %3d, %3d\033[2m)\033[0m → \033[48;2;%d;%d;%dm \033[0m" \
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"$clean_hex" "$r" "$g" "$b" "$a" "$r" "$g" "$b"
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else
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printf "\033[2mHEX:\033[0m #%s \033[2m→ RGB(\033[0m%3d, %3d, %3d\033[2m)\033[0m → \033[48;2;%d;%d;%dm \033[0m" \
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"${clean_hex:0:6}" "$r" "$g" "$b" "$r" "$g" "$b"
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fi
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[[ -n "$name" ]] && printf " \033[2m→ Name:\033[0m %s" "$name"
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echo
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fi
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}
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# Main
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if [[ $# -eq 0 ]] && [[ -t 0 ]]; then
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show_help
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exit 0
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fi
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args=()
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--help | -h)
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show_help
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exit 0
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;;
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--pick)
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if ! command -v wl-colorpicker-plasma &>/dev/null; then
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echo "Error: wl-colorpicker-plasma not found in PATH" >&2
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exit 1
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fi
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picked="$(wl-colorpicker-plasma)"
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[[ -n "$picked" ]] && args+=("$picked")
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;;
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--json)
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json_mode=1
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;;
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--alpha)
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alpha_mode=1
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;;
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--name)
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name_mode=1
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;;
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-*)
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echo "Unknown option: $1" >&2
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exit 1
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;;
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*)
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args+=("$1")
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;;
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esac
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shift
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done
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# If input is piped in, add to args
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if [[ ! -t 0 ]]; then
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while read -r line; do
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[[ -n "$line" ]] && args+=("$line")
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done
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fi
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# Run conversion
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for hex in "${args[@]}"; do
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hex_to_rgba "$hex"
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done
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