Function thirdParty

packages/vitest/rollup.config.js:178–266

(dependencies)

function licensePlugin() {
  return license({
    thirdParty(dependencies) {
      // https://github.com/rollup/rollup/blob/master/build-plugins/generate-license-file.js
      // MIT Licensed https://github.com/rollup/rollup/blob/master/LICENSE-CORE.md
      const coreLicense = fs.readFileSync(resolve(dir, '../../LICENSE'))
      const licenses = new Set()
      const dependencyLicenseTexts = dependencies
        .filter(({ name }) => !name?.startsWith('@vitest/'))
        .sort(({ name: nameA }, { name: nameB }) =>
          nameA > nameB ? 1 : nameB > nameA ? -1 : 0,
        )
        .map(
          ({
            name,
            license,
            licenseText,
            author,
            maintainers,
            contributors,
            repository,
          }) => {
            let text = `## ${name}\n`
            if (license) {
              text += `License: ${license}\n`
            }

            const names = new Set()
            if (author && author.name) {
              names.add(author.name)
            }

            for (const person of maintainers.concat(contributors)) {
              if (person && person.name) {
                names.add(person.name)
              }
            }
            if (names.size > 0) {
              text += `By: ${Array.from(names).join(', ')}\n`
            }

            if (repository) {
              text += `Repository: ${repository.url || repository}\n`
            }

            if (!licenseText) {
              try {
                const pkgDir = dirname(
                  resolve(join(name, 'package.json'), {
                    preserveSymlinks: false,
                  }),
                )
                const [licenseFile] = globSync(`${pkgDir}/LICENSE*`, {
                  caseSensitiveMatch: false,
                  expandDirectories: false,
                })
                if (licenseFile) {
                  licenseText = fs.readFileSync(licenseFile, 'utf-8')
                }
              }