setup-nextflow/src/NextflowRelease.ts

/**
 * Houses the pertinent data that GitHub exposes for each Nextflow release
 */
export type NextflowRelease = {
  versionNumber: string
  isEdge: boolean
  binaryURL: string
  allBinaryURL: string
}

/**
 * Gets the download URL of a Nextflow binary
 * @param release A "release" data struct from OctoKit
 * @param get_all Whether to return the url for the "all" variant of Nextflow
 * @returns The URL of the Nextflow binary
 */
export function nextflow_bin_url(release: object, get_all: boolean): string {
  const release_assets = release["assets"]
  const all_asset = release_assets.filter((a: object) => {
    return a["browser_download_url"].endsWith("-all")
  })[0]
  const regular_asset = release_assets.filter((a: object) => {
    return a["name"] === "nextflow"
  })[0]

  const dl_asset = get_all ? all_asset : regular_asset

  return dl_asset.browser_download_url
}