Emit an error if upload happens twice

lib/upload-lib.js

@@ -13,7 +13,6 @@ Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(require("@actions/core"));
 const http = __importStar(require("@actions/http-client"));
 const auth = __importStar(require("@actions/http-client/auth"));
-const io = __importStar(require("@actions/io"));
 const file_url_1 = __importDefault(require("file-url"));
 const fs = __importStar(require("fs"));
 const path = __importStar(require("path"));
@@ -21,18 +20,6 @@ const zlib_1 = __importDefault(require("zlib"));
 const fingerprints = __importStar(require("./fingerprints"));
 const sharedEnv = __importStar(require("./shared-environment"));
 const util = __importStar(require("./util"));
-// Construct the location of the sentinel file for detecting multiple uploads.
-// The returned location should be writable.
-async function getSentinelFilePath() {
-    // Use the temp dir instead of placing next to the sarif file because of
-    // issues with docker actions. The directory containing the sarif file
-    // may not be writable by us.
-    const uploadsTmpDir = path.join(process.env['RUNNER_TEMP'] || '/tmp/codeql-action', 'uploads');
-    await io.mkdirP(uploadsTmpDir);
-    // Hash the absolute path so we'll behave correctly in the unlikely
-    // scenario a file is referenced twice with different paths.
-    return path.join(uploadsTmpDir, 'codeql-action-upload-sentinel');
-}
 // Takes a list of paths to sarif files and combines them together,
 // returning the contents of the combined sarif file.
 function combineSarifFiles(sarifFiles) {
@@ -131,14 +118,12 @@ async function uploadFiles(sarifFiles) {
     core.startGroup("Uploading results");
     let succeeded = false;
     try {
-        // Check if an upload has happened before. If so then abort.
-        // This is intended to catch when the finish and upload-sarif actions
-        // are used together, and then the upload-sarif action is invoked twice.
-        const sentinelFile = await getSentinelFilePath();
-        if (fs.existsSync(sentinelFile)) {
-            core.info("Aborting as an upload has already happened from this job");
+        const sentinelEnvVar = "CODEQL_UPLOAD_SARIF";
+        if (process.env[sentinelEnvVar]) {
+            core.error("Aborting upload: only one run of the codeql/analyze or codeql/upload-sarif actions is allowed per job");
             return false;
         }
+        core.exportVariable(sentinelEnvVar, sentinelEnvVar);
         const commitOid = util.getRequiredEnvParam('GITHUB_SHA');
         const workflowRunIDStr = util.getRequiredEnvParam('GITHUB_RUN_ID');
         const ref = util.getRef();
@@ -175,8 +160,6 @@ async function uploadFiles(sarifFiles) {
         });
         // Make the upload
         succeeded = await uploadPayload(payload);
-        // Mark that we have made an upload
-        fs.writeFileSync(sentinelFile, '');
     }
     catch (error) {
         core.setFailed(error.message);