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.github/workflows/github-pages.yml

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+name: GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y webp librsvg2-bin
+
+    - name: Optimization
+      run: |
+        chmod +x optimize.sh
+        ./optimize.sh -i src/tracks -h 600 -q 100 -o out
+        ./optimize.sh -i src/artists -h 300 -q 100 -o out
+        ./optimize.sh -i src/playlists -h 300 -q 100 -o out
+
+    - name: Deploy
+      run: |
+        sudo chown -R $(whoami):$(whoami) .
+        git config --global user.email "[email protected]"
+        git config --global user.name "$GITHUB_ACTOR"
+        cp -r out/* /tmp
+        cd /tmp
+        git init
+        git branch -M gh-pages
+        git add .
+        git commit -m "Deploy to GitHub Pages"
+        git remote add origin "https://$GITHUB_ACTOR:${{ secrets.GITHUB_TOKEN }}@github.com/$GITHUB_REPOSITORY"
+        git push -f origin gh-pages

optimize.sh

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+#!/bin/bash
+
+TEMP_DIR=temp
+INPUT_DIR=src
+OUTPUT_DIR=out
+
+WIDTH=0
+HEIGHT=300
+IMAGE_QUALITY=100
+
+while getopts "i:o:w:h:q:" opt; do
+  case ${opt} in
+    i )
+      INPUT_DIR=$OPTARG
+      ;;
+    o )
+      OUTPUT_DIR=$OPTARG
+      ;;
+    w )
+      WIDTH=$OPTARG
+      ;;
+    h )
+      HEIGHT=$OPTARG
+      ;;
+    q )
+      IMAGE_QUALITY=$OPTARG
+      ;;
+    \? )
+      echo "Usage: ./optimize.sh [-i input_dir] [-o output_dir] [-w width] [-h height] [-q image_quality]"
+      exit 1
+      ;;
+  esac
+done
+
+rm -rf "$TEMP_DIR"
+mkdir -p "$OUTPUT_DIR"
+
+mkdir "$TEMP_DIR"
+cp -r "$INPUT_DIR"/* "$TEMP_DIR"
+
+optimize_image() {
+  local input_file="$1"
+  local output_file="$2"
+  cwebp -q "$IMAGE_QUALITY" -m 6 -sharpness 0 -noalpha -resize "$WIDTH" "$HEIGHT" -quiet "$input_file" -o "$output_file"
+}
+
+convert_svg_to_webp() {
+  local input_file="$1"
+  local output_file="$2"
+  local temp_png="${output_file}.png"
+  rsvg-convert -o "$temp_png" "$input_file"
+  optimize_image "$temp_png" "$output_file"
+  rm "$temp_png"
+}
+
+optimize_webp() {
+    local input_file="$1"
+    local output_file="$2"
+    local temp_output="${output_file}.temp"
+
+    if webpmux -info "$input_file" 2>&1 | grep -q "No. of frames: 1"; then
+        optimize_image "$input_file" "$temp_output"
+    else
+        gif2webp -q "$IMAGE_QUALITY" "$input_file" -o "$temp_output"
+    fi
+
+    local original_size=$(stat -c %s "$input_file")
+    local new_size=$(stat -c %s "$temp_output")
+
+    if (( new_size < original_size )); then
+      mv "$temp_output" "$output_file"
+      echo "Optimized: $input_file -> $output_file (reduced size from $original_size to $new_size)"
+    else
+      rm "$temp_output"
+      cp "$input_file" "$output_file"
+      echo "Copied without change: $input_file -> $output_file"
+    fi
+}
+
+file_exists_in_output() {
+  local input_file="$1"
+  local filename=$(basename "$input_file")
+  [ -f "$OUTPUT_DIR/$filename" ]
+}
+
+process_images() {
+  for img in "$TEMP_DIR"/*.{jpg,jpeg,png}; do
+    [ -f "$img" ] || continue
+    filename=$(basename "$img" .${img##*.})
+    output_file="$OUTPUT_DIR/$filename.webp"
+    if ! file_exists_in_output "$output_file"; then
+      optimize_image "$img" "$output_file"
+      echo "Converted: $img -> $output_file"
+    fi
+  done
+}
+
+process_svgs() {
+  for svg in "$TEMP_DIR"/*.svg; do
+    [ -f "$svg" ] || continue
+    filename=$(basename "$svg" .svg)
+    output_file="$OUTPUT_DIR/$filename.webp"
+    if ! file_exists_in_output "$output_file"; then
+      convert_svg_to_webp "$svg" "$output_file"
+      echo "Converted: $svg -> $output_file"
+    fi
+  done
+}
+
+process_webps() {
+  for webp in "$TEMP_DIR"/*.webp; do
+    [ -f "$webp" ] || continue
+    filename=$(basename "$webp" .webp)
+    output_file="$OUTPUT_DIR/$filename.webp"
+    if ! file_exists_in_output "$output_file"; then
+      optimize_webp "$webp" "$output_file"
+    fi
+  done
+}
+
+process_images
+process_svgs
+process_webps
+
+find "$TEMP_DIR" -type f ! -name '*.jpg' ! -name '*.jpeg' ! -name '*.png' ! -name '*.svg' -exec cp -v {} "$OUTPUT_DIR/" \;
+
+files_count=$(find "$INPUT_DIR" -type f | wc -l)
+echo "$files_count files in $INPUT_DIR"
+
+total=$(find "$OUTPUT_DIR" -type f | wc -l)
+echo "Total: $total files in $OUTPUT_DIR"
+
+rm -rf "$TEMP_DIR"
+
+echo "Optimization completed."