Support cli-version-x.y.z-pre.txt marker files

src/codeql.test.ts

@@ -239,36 +239,52 @@ test("downloads an explicitly requested bundle even if a different version is ca
   });
 });
 
-test("tries to cache an explicitly requested bundle with its CLI version number", async (t) => {
-  await util.withTmpDir(async (tmpDir) => {
-    setupActionsVars(tmpDir, tmpDir);
+const EXPLICITLY_REQUESTED_BUNDLE_TEST_CASES = [
+  {
+    cliVersion: "2.10.0",
+    expectedToolcacheVersion: "2.10.0-20200610",
+  },
+  {
+    cliVersion: "2.10.0-pre",
+    expectedToolcacheVersion: "0.0.0-20200610",
+  },
+];
 
-    mockApiDetails(sampleApiDetails);
-    sinon.stub(actionsUtil, "isRunningLocalAction").returns(true);
+for (const {
+  cliVersion,
+  expectedToolcacheVersion,
+} of EXPLICITLY_REQUESTED_BUNDLE_TEST_CASES) {
+  test(`caches an explicitly requested bundle containing CLI ${cliVersion} as ${expectedToolcacheVersion}`, async (t) => {
+    await util.withTmpDir(async (tmpDir) => {
+      setupActionsVars(tmpDir, tmpDir);
 
-    const releaseApiMock = mockReleaseApi({
-      assetNames: ["cli-version-2.10.0.txt"],
-      tagName: "codeql-bundle-20200610",
+      mockApiDetails(sampleApiDetails);
+      sinon.stub(actionsUtil, "isRunningLocalAction").returns(true);
+
+      const releaseApiMock = mockReleaseApi({
+        assetNames: [`cli-version-${cliVersion}.txt`],
+        tagName: "codeql-bundle-20200610",
+      });
+      const url = mockDownloadApi({
+        tagName: "codeql-bundle-20200610",
+      });
+
+      const result = await codeql.setupCodeQL(
+        url,
+        sampleApiDetails,
+        tmpDir,
+        util.GitHubVariant.DOTCOM,
+        false,
+        SAMPLE_DEFAULT_CLI_VERSION,
+        getRunnerLogger(true),
+        false
+      );
+      t.assert(releaseApiMock.isDone(), "Releases API should have been called");
+      t.assert(toolcache.find("CodeQL", expectedToolcacheVersion));
+      t.deepEqual(result.toolsVersion, cliVersion);
     });
-    const url = mockDownloadApi({
-      tagName: "codeql-bundle-20200610",
-    });
-
-    const result = await codeql.setupCodeQL(
-      url,
-      sampleApiDetails,
-      tmpDir,
-      util.GitHubVariant.DOTCOM,
-      false,
-      SAMPLE_DEFAULT_CLI_VERSION,
-      getRunnerLogger(true),
-      false
-    );
-    t.assert(releaseApiMock.isDone(), "Releases API should have been called");
-    t.assert(toolcache.find("CodeQL", "2.10.0-20200610"));
-    t.deepEqual(result.toolsVersion, "2.10.0");
   });
-});
+}
 
 for (const { isCached, tagName, toolcacheCliVersion } of [
   {

src/setup-codeql.ts

@@ -76,28 +76,16 @@ async function getCodeQLBundleReleasesDotcomOnly(
   });
   logger.debug(`Found ${releases.length} releases.`);
 
-  return releases.flatMap((release) => {
-    const cliVersionFileVersions = release.assets
-      .map((asset) => asset.name.match(/cli-version-(.*)\.txt/)?.[1])
-      .filter((v) => v)
-      .map((v) => v as string);
-
-    if (cliVersionFileVersions.length > 1) {
-      logger.warning(
-        `Ignoring release ${release.tag_name} with multiple CLI version marker files.`
-      );
-      return [];
-    }
-    return [
-      { cliVersion: cliVersionFileVersions[0], tagName: release.tag_name },
-    ];
-  });
+  return releases.map((release) => ({
+    cliVersion: tryGetCodeQLCliVersionForRelease(release, logger),
+    tagName: release.tag_name,
+  }));
 }
 
-async function tryGetCodeQLCliVersionForRelease(
+function tryGetCodeQLCliVersionForRelease(
   release,
   logger: Logger
-): Promise<string | undefined> {
+): string | undefined {
   const cliVersionsFromMarkerFiles = release.assets
     .map((asset) => asset.name.match(/cli-version-(.*)\.txt/)?.[1])
     .filter((v) => v)
@@ -573,11 +561,17 @@ export async function downloadCodeQL(
         logger
       ))) ||
     undefined;
-  // Include the bundle version in the toolcache version number so that if the user requests the
-  // same URL again, we can get it from the cache without having to call any of the Releases API.
-  const toolcacheVersion = cliVersion
-    ? `${cliVersion}-${bundleVersion}`
-    : convertToSemVer(bundleVersion, logger);
+  // Include both the CLI version and the bundle version in the toolcache version number. That way
+  // if the user requests the same URL again, we can get it from the cache without having to call
+  // any of the Releases API.
+  //
+  // Special case: If the CLI version is a pre-release, then cache the bundle as
+  // `0.0.0-<bundleVersion>` to avoid the bundle being interpreted as containing a stable CLI
+  // release.
+  const toolcacheVersion =
+    cliVersion && !cliVersion.includes("-")
+      ? `${cliVersion}-${bundleVersion}`
+      : convertToSemVer(bundleVersion, logger);
   return {
     toolsVersion: cliVersion || toolcacheVersion,
     codeqlFolder: await toolcache.cacheDir(