Function compareVersions

cli/release-staging/index.js:232–294

(v1, v2)

}

function compareVersions(v1, v2) {
  if (!v1 || !v2) return 0

  // Always update if the current version is not a valid semver
  // e.g. 1.0.420-beta.1
  if (!v1.match(/^\d+(\.\d+)*$/)) {
    return -1
  }

  const parseVersion = (version) => {
    const parts = version.split('-')
    const mainParts = parts[0].split('.').map(Number)
    const prereleaseParts = parts[1] ? parts[1].split('.') : []
    return { main: mainParts, prerelease: prereleaseParts }
  }

  const p1 = parseVersion(v1)
  const p2 = parseVersion(v2)

  for (let i = 0; i < Math.max(p1.main.length, p2.main.length); i++) {
    const n1 = p1.main[i] || 0
    const n2 = p2.main[i] || 0

    if (n1 < n2) return -1
    if (n1 > n2) return 1
  }

  if (p1.prerelease.length === 0 && p2.prerelease.length === 0) {
    return 0
  } else if (p1.prerelease.length === 0) {
    return 1
  } else if (p2.prerelease.length === 0) {
    return -1
  } else {
    for (
      let i = 0;
      i < Math.max(p1.prerelease.length, p2.prerelease.length);
      i++
    ) {
      const pr1 = p1.prerelease[i] || ''
      const pr2 = p2.prerelease[i] || ''

      const isNum1 = !isNaN(parseInt(pr1))
      const isNum2 = !isNaN(parseInt(pr2))

      if (isNum1 && isNum2) {
        const num1 = parseInt(pr1)
        const num2 = parseInt(pr2)
        if (num1 < num2) return -1
        if (num1 > num2) return 1
      } else if (isNum1 && !isNum2) {
        return 1
      } else if (!isNum1 && isNum2) {
        return -1
      } else if (pr1 < pr2) {
        return -1
      } else if (pr1 > pr2) {
        return 1