Initial commit

src/download/download-latest.ts

@@ -0,0 +1,64 @@
+import * as core from '@actions/core'
+import * as tc from '@actions/tool-cache'
+import * as path from 'path'
+import * as exec from '@actions/exec'
+import {Architecture, Platform} from '../utils/platforms'
+import {validateChecksum} from './checksum/checksum'
+import {OWNER, REPO} from '../utils/utils'
+
+export async function downloadLatest(
+  platform: Platform,
+  arch: Architecture,
+  checkSum: string | undefined,
+  githubToken: string | undefined
+): Promise<{downloadDir: string; version: string}> {
+  const binary = `uv-${arch}-${platform}`
+  let downloadUrl = `https://github.com/${OWNER}/${REPO}/releases/latest/download/${binary}`
+  if (platform === 'pc-windows-msvc') {
+    downloadUrl += '.zip'
+  } else {
+    downloadUrl += '.tar.gz'
+  }
+  core.info(`Downloading uv from "${downloadUrl}" ...`)
+
+  const downloadDir = `${process.cwd()}${path.sep}uv`
+  const downloadPath = await tc.downloadTool(
+    downloadUrl,
+    downloadDir,
+    githubToken
+  )
+  let uvExecutablePath: string
+  let extracted: string
+  if (platform === 'pc-windows-msvc') {
+    extracted = await tc.extractZip(downloadPath)
+    uvExecutablePath = path.join(extracted, 'uv.exe')
+  } else {
+    extracted = await tc.extractTar(downloadPath)
+    uvExecutablePath = path.join(extracted, 'uv')
+  }
+  const version = await getVersion(uvExecutablePath)
+  await validateChecksum(checkSum, downloadPath, arch, platform, version)
+
+  return {downloadDir, version}
+}
+
+async function getVersion(uvExecutablePath: string): Promise<string> {
+  // Parse the output of `uv --version` to get the version
+  // The output looks like
+  // uv 0.3.1 (be17d132a 2024-08-21)
+
+  const options: exec.ExecOptions = {
+    silent: !core.isDebug()
+  }
+  const execArgs = ['--version']
+
+  let output = ''
+  options.listeners = {
+    stdout: (data: Buffer) => {
+      output += data.toString()
+    }
+  }
+  await exec.exec(uvExecutablePath, execArgs, options)
+  const parts = output.split(' ')
+  return parts[1]
+}