Check available languages

lib/codeql.js

@@ -282,6 +282,7 @@ function setCodeQL(partialCodeql) {
         runAutobuild: resolveFunction(partialCodeql, "runAutobuild"),
         extractScannedLanguage: resolveFunction(partialCodeql, "extractScannedLanguage"),
         finalizeDatabase: resolveFunction(partialCodeql, "finalizeDatabase"),
+        resolveLanguages: resolveFunction(partialCodeql, "resolveLanguages"),
         resolveQueries: resolveFunction(partialCodeql, "resolveQueries"),
         databaseAnalyze: resolveFunction(partialCodeql, "databaseAnalyze"),
     };
@@ -418,6 +419,18 @@ function getCodeQLForCmd(cmd) {
                 databasePath,
             ], error_matcher_1.errorMatchers);
         },
+        async resolveLanguages() {
+            const codeqlArgs = ["resolve", "languages", "--format=json"];
+            let output = "";
+            await new toolrunner.ToolRunner(cmd, codeqlArgs, {
+                listeners: {
+                    stdout: (data) => {
+                        output += data.toString();
+                    },
+                },
+            }).exec();
+            return JSON.parse(output);
+        },
         async resolveQueries(queries, extraSearchPath) {
             const codeqlArgs = [
                 "resolve",

lib/config-utils.js

@@ -336,7 +336,7 @@ async function getLanguagesInRepo(repository, apiDetails, logger) {
  * If no languages could be detected from either the workflow or the repository
  * then throw an error.
  */
-async function getLanguages(languagesInput, repository, apiDetails, logger) {
+async function getLanguages(codeQL, languagesInput, repository, apiDetails, logger) {
     // Obtain from action input 'languages' if set
     let languages = (languagesInput || "")
         .split(",")
@@ -346,6 +346,8 @@ async function getLanguages(languagesInput, repository, apiDetails, logger) {
     if (languages.length === 0) {
         // Obtain languages as all languages in the repo that can be analysed
         languages = await getLanguagesInRepo(repository, apiDetails, logger);
+        const availableLanguages = await codeQL.resolveLanguages();
+        languages = languages.filter((value) => value in availableLanguages);
         logger.info(`Automatically detected languages: ${JSON.stringify(languages)}`);
     }
     // If the languages parameter was not given and no languages were
@@ -392,7 +394,7 @@ function shouldAddConfigFileQueries(queriesInput) {
  * Get the default config for when the user has not supplied one.
  */
 async function getDefaultConfig(languagesInput, queriesInput, dbLocation, repository, tempDir, toolCacheDir, codeQL, checkoutPath, gitHubVersion, apiDetails, logger) {
-    const languages = await getLanguages(languagesInput, repository, apiDetails, logger);
+    const languages = await getLanguages(codeQL, languagesInput, repository, apiDetails, logger);
     const queries = {};
     for (const language of languages) {
         queries[language] = {
@@ -441,7 +443,7 @@ async function loadConfig(languagesInput, queriesInput, configFile, dbLocation,
             throw new Error(getNameInvalid(configFile));
         }
     }
-    const languages = await getLanguages(languagesInput, repository, apiDetails, logger);
+    const languages = await getLanguages(codeQL, languagesInput, repository, apiDetails, logger);
     const queries = {};
     for (const language of languages) {
         queries[language] = {

lib/config-utils.test.js

@@ -531,8 +531,13 @@ ava_1.default("Invalid format of remote config handled correctly", async (t) =>
 ava_1.default("No detected languages", async (t) => {
     return await util.withTmpDir(async (tmpDir) => {
         mockListLanguages([]);
+        const codeQL = codeql_1.setCodeQL({
+            async resolveLanguages() {
+                return {};
+            },
+        });
         try {
-            await configUtils.initConfig(undefined, undefined, undefined, undefined, { owner: "github", repo: "example " }, tmpDir, tmpDir, codeql_1.getCachedCodeQL(), tmpDir, gitHubVersion, sampleApiDetails, logging_1.getRunnerLogger(true));
+            await configUtils.initConfig(undefined, undefined, undefined, undefined, { owner: "github", repo: "example " }, tmpDir, tmpDir, codeQL, tmpDir, gitHubVersion, sampleApiDetails, logging_1.getRunnerLogger(true));
             throw new Error("initConfig did not throw error");
         }
         catch (err) {