Function getNextVersionNumber

script/draft-release/version.ts:24–101

(
  version: string,
  channel: Channel
)

}

export function getNextVersionNumber(
  version: string,
  channel: Channel
): string {
  const semanticVersion = parse(version)

  if (semanticVersion == null) {
    throw new Error(`Unable to parse input '${version}' into version`)
  }

  switch (channel) {
    case 'production':
      if (isBetaTag(semanticVersion)) {
        throw new Error(
          `Unable to draft production release using beta version '${version}'`
        )
      }

      if (isTestTag(semanticVersion)) {
        throw new Error(
          `Unable to draft production release using test version '${version}'`
        )
      }

      const nextVersion = inc(version, 'patch')
      if (nextVersion == null) {
        throw new Error(
          `Unable to increment next production version from release version '${version}'`
        )
      }

      return nextVersion

    case 'beta':
      if (isTestTag(semanticVersion)) {
        throw new Error(
          `Unable to draft beta release using test version '${version}'`
        )
      }

      const betaNumber = tryGetBetaNumber(semanticVersion)

      if (betaNumber) {
        return semanticVersion.version.replace(
          `-beta${betaNumber}`,
          `-beta${betaNumber + 1}`
        )
      } else {
        const nextVersion = inc(semanticVersion, 'patch')
        const firstBeta = `${nextVersion}-beta1`
        return firstBeta
      }
    case 'test':
      if (isBetaTag(semanticVersion)) {
        throw new Error(
          `Unable to draft test release using beta version '${version}'`
        )
      }