Resolve latest version instead of downloading latest release (#178)

src/download/download-latest.ts

@@ -1,73 +0,0 @@
-import * as core from "@actions/core";
-import * as tc from "@actions/tool-cache";
-import * as exec from "@actions/exec";
-import * as path from "node:path";
-import { promises as fs } from "node:fs";
-import type { Architecture, Platform } from "../utils/platforms";
-import { validateChecksum } from "./checksum/checksum";
-import { OWNER, REPO, TOOL_CACHE_NAME } from "../utils/constants";
-
-export async function downloadLatest(
-  platform: Platform,
-  arch: Architecture,
-  checkSum: string | undefined,
-  githubToken: string | undefined,
-): Promise<{ cachedToolDir: string; version: string }> {
-  const artifact = `uv-${arch}-${platform}`;
-  let extension = ".tar.gz";
-  if (platform === "pc-windows-msvc") {
-    extension = ".zip";
-  }
-  const downloadUrl = `https://github.com/${OWNER}/${REPO}/releases/latest/download/${artifact}${extension}`;
-  core.info(`Downloading uv from "${downloadUrl}" ...`);
-
-  const downloadPath = await tc.downloadTool(
-    downloadUrl,
-    undefined,
-    githubToken,
-  );
-  let uvExecutablePath: string;
-  let uvDir: string;
-  if (platform === "pc-windows-msvc") {
-    const fullPathWithExtension = `${downloadPath}${extension}`;
-    await fs.copyFile(downloadPath, fullPathWithExtension);
-    uvDir = await tc.extractZip(fullPathWithExtension);
-    // On windows extracting the zip does not create an intermediate directory
-    uvExecutablePath = path.join(uvDir, "uv.exe");
-  } else {
-    const extractedDir = await tc.extractTar(downloadPath);
-    uvDir = path.join(extractedDir, artifact);
-    uvExecutablePath = path.join(uvDir, "uv");
-  }
-  const version = await getVersion(uvExecutablePath);
-  await validateChecksum(checkSum, downloadPath, arch, platform, version);
-  const cachedToolDir = await tc.cacheDir(
-    uvDir,
-    TOOL_CACHE_NAME,
-    version,
-    arch,
-  );
-
-  return { cachedToolDir, 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].trim();
-}

src/download/download-version.ts

@@ -70,10 +70,14 @@ export async function downloadVersion(
   return { version: resolvedVersion, cachedToolDir };
 }
 
-async function resolveVersion(
-  version: string,
+export async function resolveVersion(
+  versionInput: string,
   githubToken: string,
 ): Promise<string> {
+  const version =
+    versionInput === "latest"
+      ? await getLatestVersion(githubToken)
+      : versionInput;
   if (tc.isExplicitVersion(version)) {
     core.debug(`Version ${version} is an explicit version.`);
     return version;
@@ -95,3 +99,17 @@ async function getAvailableVersions(githubToken: string): Promise<string[]> {
   });
   return response.map((release) => release.tag_name);
 }
+
+async function getLatestVersion(githubToken: string) {
+  const octokit = github.getOctokit(githubToken);
+
+  const { data: latestRelease } = await octokit.rest.repos.getLatestRelease({
+    owner: OWNER,
+    repo: REPO,
+  });
+
+  if (!latestRelease) {
+    throw new Error("Could not determine latest release.");
+  }
+  return latestRelease.tag_name;
+}

src/setup-uv.ts

@@ -3,10 +3,10 @@ import * as path from "node:path";
 import {
   downloadVersion,
   tryGetFromToolCache,
+  resolveVersion,
 } from "./download/download-version";
 import { restoreCache } from "./cache/restore-cache";
 
-import { downloadLatest } from "./download/download-latest";
 import {
   type Architecture,
   getArch,
@@ -69,38 +69,28 @@ async function setupUv(
   checkSum: string | undefined,
   githubToken: string,
 ): Promise<{ uvDir: string; version: string }> {
-  let installedPath: string | undefined;
-  let cachedToolDir: string;
-  let version: string;
-  if (versionInput === "latest") {
-    const latestResult = await downloadLatest(
-      platform,
-      arch,
-      checkSum,
-      githubToken,
-    );
-    version = latestResult.version;
-    cachedToolDir = latestResult.cachedToolDir;
-  } else {
-    const toolCacheResult = tryGetFromToolCache(arch, versionInput);
-    version = toolCacheResult.version;
-    installedPath = toolCacheResult.installedPath;
-    if (installedPath) {
-      core.info(`Found uv in tool-cache for ${versionInput}`);
-      return { uvDir: installedPath, version };
-    }
-    const versionResult = await downloadVersion(
-      platform,
-      arch,
-      versionInput,
-      checkSum,
-      githubToken,
-    );
-    cachedToolDir = versionResult.cachedToolDir;
-    version = versionResult.version;
+  const resolvedVersion = await resolveVersion(versionInput, githubToken);
+  const toolCacheResult = tryGetFromToolCache(arch, resolvedVersion);
+  if (toolCacheResult.installedPath) {
+    core.info(`Found uv in tool-cache for ${toolCacheResult.version}`);
+    return {
+      uvDir: toolCacheResult.installedPath,
+      version: toolCacheResult.version,
+    };
   }
 
-  return { uvDir: cachedToolDir, version };
+  const downloadVersionResult = await downloadVersion(
+    platform,
+    arch,
+    resolvedVersion,
+    checkSum,
+    githubToken,
+  );
+
+  return {
+    uvDir: downloadVersionResult.cachedToolDir,
+    version: downloadVersionResult.version,
+  };
 }
 
 function addUvToPath(cachedPath: string): void {