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v2.0.1

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#!/bin/bash

# Fetch Octicon icons and convert them to PNG and embedded data URIs.

# Generates both light theme (dark icons) and dark theme (white icons) variants.

# Uses sed to modify SVG fill color before converting to PNG.

# Requires: rsvg-convert (from librsvg2-bin on Ubuntu/Debian), base64

#

# Usage:

# script/fetch-icons # Fetch all required icons

# script/fetch-icons icon1 icon2 # Fetch specific icons

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

ICONS_DIR="$REPO_ROOT/pkg/octicons/icons"

DATA_URIS_FILE="$REPO_ROOT/pkg/octicons/icons_data_uris.txt"

REQUIRED_ICONS_FILE="$REPO_ROOT/pkg/octicons/required_icons.txt"

OCTICONS_BASE="https://raw.githubusercontent.com/primer/octicons/main/icons"

# Check for rsvg-convert

if ! command -v rsvg-convert &> /dev/null; then

echo "Error: rsvg-convert not found. Install with:"

echo " Ubuntu/Debian: sudo apt-get install librsvg2-bin"

echo " macOS: brew install librsvg"

exit 1

fi

# Load icons from required_icons.txt or use command-line arguments

if [ $# -gt 0 ]; then

ICONS=("$@")

else

if [ ! -f "$REQUIRED_ICONS_FILE" ]; then

echo "Error: Required icons file not found: $REQUIRED_ICONS_FILE"

exit 1

fi

# Read icons from file, skipping comments and empty lines

mapfile -t ICONS < <(grep -v '^#' "$REQUIRED_ICONS_FILE" | grep -v '^$')

fi

# Ensure icons directory exists

mkdir -p "$ICONS_DIR"

echo "Fetching ${#ICONS[@]} icons (24px, light + dark themes)..."

for icon in "${ICONS[@]}"; do

svg_url="${OCTICONS_BASE}/${icon}-24.svg"

light_file="${ICONS_DIR}/${icon}-light.png"

dark_file="${ICONS_DIR}/${icon}-dark.png"

echo " ${icon} (light + dark)"

# Download SVG

svg_content=$(curl -sfL "$svg_url" 2>/dev/null) || {

echo " Warning: Failed to fetch ${icon}-24.svg (may not exist)"

continue

}

# Light theme: dark icons (#24292f) for light backgrounds

# Add fill attribute to the svg tag

light_svg=$(echo "$svg_content" | sed 's/<svg /<svg fill="#24292f" /')

echo "$light_svg" | rsvg-convert -o "$light_file"

# Dark theme: white icons (#ffffff) for dark backgrounds

dark_svg=$(echo "$svg_content" | sed 's/<svg /<svg fill="#ffffff" /')

echo "$dark_svg" | rsvg-convert -o "$dark_file"

done

data_uris_tmp=$(mktemp)

trap 'rm -f "$data_uris_tmp"' EXIT

for icon_file in "$ICONS_DIR"/*.png; do

filename=$(basename "$icon_file" .png)

encoded_png=$(base64 < "$icon_file")

printf '%s\tdata:image/png;base64,%s\n' "$filename" "${encoded_png//$'\n'/}" >> "$data_uris_tmp"

done

mv "$data_uris_tmp" "$DATA_URIS_FILE"

trap - EXIT

echo "Done. Icons saved to $ICONS_DIR"

echo "Data URIs saved to $DATA_URIS_FILE"

echo ""

echo "Next steps:"

echo " 1. Run 'go test ./pkg/octicons/...' to verify icons are embedded"

echo " 2. Run 'go test ./pkg/github/...' to verify toolset icons are valid"

echo " 3. Commit the new icon files and generated data URIs"