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#!/bin/bash
# Process images and parse JSON output
RESULT=$(getwebp ./images/*.jpg --json)
if [ $? -eq 0 ]; then
  SAVED=$(echo $RESULT | jq -r '.compressionRatio')
  COUNT=$(echo $RESULT | jq -r '.processed')
  echo "✓ Processed $COUNT files, saved $SAVED"
else
  echo "✗ Error: $(echo $RESULT | jq -r '.error')"
  exit 1
fi

import subprocess
import json
result = subprocess.run(
    ["getwebp", "./images", "--json"],
    capture_output=True, text=True
)
if result.returncode == 0:
    data = json.loads(result.stdout)
    print(f"✓ Processed {data['processed']} files")
    print(f"  Saved {data['compressionRatio']} ({data['totalInputSize']} → {data['totalOutputSize']})")
else:
    error = json.loads(result.stderr)
    raise RuntimeError(f"getwebp failed: {error['error']}")

- name: Optimize images
  run: |
    npx getwebp@latest ./public/images \
      --json > optimization-report.json
    SAVED=$(cat optimization-report.json | jq -r '.compressionRatio')
    echo "Images optimized: $SAVED smaller"
- name: Upload report
  uses: actions/upload-artifact@v4
  with:
    name: image-optimization-report
    path: optimization-report.json

FROM node:20-alpine
# getwebp is a single binary — no system deps needed
RUN npx getwebp@latest --install-binary /usr/local/bin/getwebp
COPY ./images /app/images
RUN getwebp /app/images --json > /app/result.json \
    && cat /app/result.json | jq '.compressionRatio'