dist update

src/download.ts

@@ -0,0 +1,66 @@
+import fs from 'fs'
+import { debug, info } from '@actions/core'
+import { downloadTool } from '@actions/tool-cache'
+import { isEnterpriseStep } from './enterprise'
+import {
+  getReleaseAssetUrl,
+  getTag,
+  GITHUB_COM_SERVER_URL
+} from './github'
+import { fetchRetry } from './fetch'
+
+export async function downloadPiperBinary (
+  stepName: string, version: string, apiURL: string, token: string, owner: string, repo: string
+): Promise<string> {
+  const isEnterprise = isEnterpriseStep(stepName)
+  if (isEnterprise && token === '') throw new Error('Token is not provided for enterprise step')
+  if (owner === '') throw new Error('owner is not provided')
+  if (repo === '') throw new Error('repository is not provided')
+
+  let binaryURL
+  const headers: any = {}
+  const piperBinaryName = await getPiperBinaryNameFromInputs(isEnterprise, version)
+  if (token !== '') {
+    debug('Fetching binary from GitHub API')
+    headers.Accept = 'application/octet-stream'
+    headers.Authorization = `token ${token}`
+
+    const [binaryAssetURL, tag] = await getReleaseAssetUrl(piperBinaryName, version, apiURL, token, owner, repo)
+    binaryURL = binaryAssetURL
+    version = tag
+  } else {
+    debug('Fetching binary from URL')
+    binaryURL = await getPiperDownloadURL(piperBinaryName, version)
+    version = binaryURL.split('/').slice(-2)[0]
+  }
+  version = version.replace(/\./g, '_')
+  const piperPath = `${process.cwd()}/${version}/${piperBinaryName}`
+  if (fs.existsSync(piperPath)) {
+    return piperPath
+  }
+
+  info(`Downloading '${binaryURL}' as '${piperPath}'`)
+  await downloadTool(
+    binaryURL,
+    piperPath,
+    undefined,
+    headers
+  )
+
+  return piperPath
+}
+async function getPiperDownloadURL (piper: string, version?: string): Promise<string> {
+  const tagURL = `${GITHUB_COM_SERVER_URL}/SAP/jenkins-library/releases/${getTag(version, false)}`
+  const response = await fetchRetry(tagURL, 'HEAD')
+    .catch(async (err) => {
+      throw new Error(`Can't get the tag: ${err}`)
+    })
+  return await Promise.resolve(response.url.replace(/tag/, 'download') + `/${piper}`)
+}
+
+async function getPiperBinaryNameFromInputs (isEnterpriseStep: boolean, version?: string): Promise<string> {
+  if (version === 'master') {
+    info('using _master binaries is deprecated. Using latest release version instead.')
+  }
+  return isEnterpriseStep ? 'sap-piper' : 'piper'
+}