Fix AST Viewer

The previous synthetic query suite was not finding the ast query because
the `qlpack` directive in a query suite only matches queries from the
default suite, which `printAST.ql` is not part of.

This changes to using `from` and `queries` directives.

Also, adds an integration test to ensure we find the queries using
different CLIs. However, this only tests using the latest `main` from
the codeql repository. I wonder if we should start testing using
different versions of the repo.

extensions/ql-vscode/src/contextual/queryResolver.ts

@@ -31,26 +31,24 @@ export async function qlpackOfDatabase(cli: CodeQLCliServer, db: DatabaseItem):
  * @returns The found queries from the first pack in which any matching queries were found.
  */
 async function resolveQueriesFromPacks(cli: CodeQLCliServer, qlpacks: string[], keyType: KeyType): Promise<string[]> {
-  for (const qlpack of qlpacks) {
   const suiteFile = (await tmp.file({
     postfix: '.qls'
   })).path;
-    const suiteYaml = {
-      qlpack,
+  const suiteYaml = [];
+  for (const qlpack of qlpacks) {
+    suiteYaml.push({
+      from: qlpack,
+      queries: '.',
       include: {
         kind: kindOfKeyType(keyType),
         'tags contain': tagOfKeyType(keyType)
       }
-    };
+    });
+  }
   await fs.writeFile(suiteFile, yaml.safeDump(suiteYaml), 'utf8');
 
   const queries = await cli.resolveQueriesInSuite(suiteFile, helpers.getOnDiskWorkspaceFolders());
-    if (queries.length > 0) {
   return queries;
-    }
-  }
-
-  return [];
 }
 
 export async function resolveQueries(cli: CodeQLCliServer, qlpacks: QlPacksForLanguage, keyType: KeyType): Promise<string[]> {

extensions/ql-vscode/src/vscode-tests/cli-integration/run-cli.test.ts

@@ -7,6 +7,8 @@ import { CodeQLCliServer, QueryInfoByLanguage } from '../../cli';
 import { CodeQLExtensionInterface } from '../../extension';
 import { skipIfNoCodeQL } from '../ensureCli';
 import { getOnDiskWorkspaceFolders } from '../../helpers';
+import { resolveQueries } from '../../contextual/queryResolver';
+import { KeyType } from '../../contextual/keyType';
 
 /**
  * Perform proper integration tests by running the CLI
@@ -68,4 +70,16 @@ describe('Use cli', function() {
     const queryInfo: QueryInfoByLanguage = await cli.resolveQueryByLanguage(getOnDiskWorkspaceFolders(), Uri.file(queryPath));
     expect((Object.keys(queryInfo.byLanguage))[0]).to.eql('javascript');
   });
+
+  it.only('should resolve printAST queries', async function() {
+    skipIfNoCodeQL(this);
+
+    const result = await resolveQueries(cli, {
+      dbschemePack: 'codeql/javascript-all',
+      dbschemePackIsLibraryPack: true,
+      queryPack: 'codeql/javascript-queries'
+    }, KeyType.PrintAstQuery);
+    expect(result.length).to.eq(1);
+    expect(result[0].endsWith('javascript/ql/src/printAst.ql')).to.be.true;
+  });
 });