Add isOtherAnalysisSarif with tests

src/analyses.test.ts

@@ -2,6 +2,7 @@ import test from "ava";
 
 import {
   AnalysisKind,
+  isOtherAnalysisSarif,
   parseAnalysisKinds,
   supportedAnalysisKinds,
 } from "./analyses";
@@ -34,3 +35,23 @@ test("Parsing analysis kinds requires at least one analysis kind", async (t) =>
     instanceOf: ConfigurationError,
   });
 });
+
+test("isOtherAnalysisSarif", async (t) => {
+  function expectTrue(analysisKind: AnalysisKind, filepath: string) {
+    t.assert(
+      isOtherAnalysisSarif(analysisKind, filepath),
+      `Expected ${filepath} to be for another analysis kind, but it matched ${analysisKind}.`,
+    );
+  }
+  function expectFalse(analysisKind: AnalysisKind, filepath: string) {
+    t.assert(
+      !isOtherAnalysisSarif(analysisKind, filepath),
+      `Expected ${filepath} to be for ${analysisKind}, but it matched some other analysis kind.`,
+    );
+  }
+  expectTrue(AnalysisKind.CodeQuality, "test.sarif");
+  expectFalse(AnalysisKind.CodeQuality, "test.quality.sarif");
+  expectTrue(AnalysisKind.CodeScanning, "test.quality.sarif");
+  expectFalse(AnalysisKind.CodeScanning, "test.sarif");
+  expectFalse(AnalysisKind.CodeScanning, "test.json");
+});

src/analyses.ts

@@ -86,3 +86,23 @@ export const CodeQuality: AnalysisConfig = {
   sarifPredicate: (name) => name.endsWith(CodeQuality.sarifExtension),
   sentinelPrefix: "CODEQL_UPLOAD_QUALITY_SARIF_",
 };
+
+// An array of all analysis configurations we know of.
+export const Analyses = [CodeScanning, CodeQuality];
+
+/**
+ * Determines based on the given `filepath`, whether the file is a SARIF file for
+ * an analysis other than the one given by `current`.
+ *
+ * @param current The current analysis kind.
+ * @param filepath The path of the file to check.
+ * @returns True if `filepath` is a SARIF file for an analysis other than `current`; False otherwise.
+ */
+export function isOtherAnalysisSarif(
+  current: AnalysisKind,
+  filepath: string,
+): boolean {
+  return Analyses.some(
+    (config) => config.kind !== current && config.sarifPredicate(filepath),
+  );
+}