build_tools/make_license_html.js from wtetsu/deinja

build_tools/make_license_html.js
Summary

Maintainability

0 mins
Test Coverage

Issues
/**
 * Convert license.json to a simple html file.
 */
const fs = require("fs");

const main = (licenseJsonPath) => {
  const licenseRecords = readJson(licenseJsonPath);

  const { licenseContent, summary } = makeLicenseContent(licenseRecords);
  printSummary(summary);

  const htmlContent = makeHtmlContent(licenseContent);

  fs.writeFileSync("license.html", htmlContent);
};

const makeLicenseContent = (licenseRecords) => {
  const keys = Object.keys(licenseRecords);
  keys.sort();

  const summary = {};

  let licenseContent = "<ul>";
  for (const key of keys) {
    const idx = key.lastIndexOf("@");
    const title = key.substring(0, idx);
    const version = key.substring(idx + 1);

    const record = licenseRecords[key];
    const licenses = record.licenses;
    const name = record.publisher ?? "Link";
    const href = record.repository ?? licenseContent.url;

    if (!summary[licenses]) {
      summary[licenses] = 0;
    }
    summary[licenses] += 1;

    licenseContent += `  <li><a href="${href}" target="_blank" rel="noopener noreferrer" title="${version}">${title}</a><span class="license">(${licenses})</span> <span class="publisher">${name}</span></li>\n`;
  }

  return { licenseContent, summary };
};

const printSummary = (summary) => {
  console.log("# Summary");
  const keys = Object.keys(summary);
  keys.sort();

  const records = [];
  for (const key of keys) {
    records.push({ key, count: summary[key] });
  }
  records.sort((a, b) => b.count - a.count);

  for (const record of records) {
    console.log(`${record.count} ${record.key}`);
  }
};

const makeHtmlContent = (licenseContent) => {
  return `
   <!DOCTYPE html>
   <html lang="en">
   <head>
     <meta charset="UTF-8">
     <title>License</title>
     <style>
       ul {
         list-style-type: none;
       }
       li {
         margin-bottom: 0.5em;
       }
       a {
         color: #000;
         text-decoration: none;
       }
       a:hover{
         text-decoration: underline;
       }
       .version {
         font-size: 0.8em;
         color: #4a4a4a;
       }      
       .license {
         font-size: 0.8em;
         color: #4a4a4a;
       }
       .publisher {
         font-size: 0.5em;
         color: #4a4a4a;
       }    
     </style>
   </head>
   <body>
     ${licenseContent}
   </body>
   </html>
   `;
};

const readJson = (fileName) => {
  return JSON.parse(fs.readFileSync(fileName));
};

if (require.main === module) {
  if (process.argv.length <= 2) {
    console.error("Usage: node make_license_html.js license_file_path");
    process.exit(1);
  }

  const licenseFilePath = process.argv[2];

  main(licenseFilePath);
}