Add generation of Ruby models

This adds the ability to generate Ruby models from a database. It uses
the `GenerateModel.ql` query to do this. The query will essentially
return data in the data extensions format, so this will just parse it
and return it as `ModeledMethod` objects.

Author: koesie10

extensions/ql-vscode/src/codeql-cli/cli.ts

@@ -10,7 +10,11 @@ import tk from "tree-kill";
 import { promisify } from "util";
 import { CancellationToken, Disposable, Uri } from "vscode";
 
-import { BQRSInfo, DecodedBqrsChunk } from "../common/bqrs-cli-types";
+import {
+  BQRSInfo,
+  DecodedBqrs,
+  DecodedBqrsChunk,
+} from "../common/bqrs-cli-types";
 import { allowCanaryQueryServer, CliConfig } from "../config";
 import {
   DistributionProvider,
@@ -1040,6 +1044,18 @@ export class CodeQLCliServer implements Disposable {
     );
   }
 
+  /**
+   * Gets all results from a bqrs.
+   * @param bqrsPath The path to the bqrs.
+   */
+  async bqrsDecodeAll(bqrsPath: string): Promise<DecodedBqrs> {
+    return await this.runJsonCodeQlCliCommand<DecodedBqrs>(
+      ["bqrs", "decode"],
+      [bqrsPath],
+      "Reading all bqrs data",
+    );
+  }
+
   async runInterpretCommand(
     format: string,
     additonalArgs: string[],

extensions/ql-vscode/src/common/bqrs-cli-types.ts

@@ -121,3 +121,5 @@ export interface DecodedBqrsChunk {
   next?: number;
   columns: BqrsColumn[];
 }
+
+export type DecodedBqrs = Record<string, DecodedBqrsChunk>;

extensions/ql-vscode/src/local-queries/query-resolver.ts

@@ -31,6 +31,8 @@ export interface QueryConstraints {
   kind?: string;
   "tags contain"?: string[];
   "tags contain all"?: string[];
+  "query filename"?: string;
+  "query path"?: string;
 }
 
 /**
@@ -132,6 +134,14 @@ export async function resolveQueries(
       `tagged all of "${constraints["tags contain all"].join(" ")}"`,
     );
   }
+  if (constraints["query filename"] !== undefined) {
+    humanConstraints.push(
+      `with query filename "${constraints["query filename"]}"`,
+    );
+  }
+  if (constraints["query path"] !== undefined) {
+    humanConstraints.push(`with query path "${constraints["query path"]}"`);
+  }
 
   const joinedPacksToSearch = packsToSearch.join(", ");
   const error = redactableError`No ${name} queries (${humanConstraints.join(

extensions/ql-vscode/src/model-editor/generate-model-queries.ts

@@ -0,0 +1,158 @@
+import { CancellationToken } from "vscode";
+import { DatabaseItem } from "../databases/local-databases";
+import { QueryRunner } from "../query-server";
+import { CodeQLCliServer } from "../codeql-cli/cli";
+import {
+  BaseLogger,
+  showAndLogExceptionWithTelemetry,
+} from "../common/logging";
+import { extLogger } from "../common/logging/vscode";
+import { getModelsAsDataLanguage } from "./languages";
+import { ProgressCallback } from "../common/vscode/progress";
+import { getOnDiskWorkspaceFolders } from "../common/vscode/workspace-folders";
+import { ModeledMethod } from "./modeled-method";
+import { redactableError } from "../common/errors";
+import { telemetryListener } from "../common/vscode/telemetry";
+import { runQuery } from "../local-queries/run-query";
+import { resolveQueries } from "../local-queries";
+import { QueryLanguage } from "../common/query-language";
+import { DataTuple } from "./model-extension-file";
+
+const GENERATE_MODEL_SUPPORTED_LANGUAGES = [QueryLanguage.Ruby];
+
+export function isGenerateModelSupported(language: QueryLanguage): boolean {
+  return GENERATE_MODEL_SUPPORTED_LANGUAGES.includes(language);
+}
+
+type GenerateModelOptions = {
+  cliServer: CodeQLCliServer;
+  queryRunner: QueryRunner;
+  logger: BaseLogger;
+  queryStorageDir: string;
+  databaseItem: DatabaseItem;
+  language: QueryLanguage;
+  progress: ProgressCallback;
+  token: CancellationToken;
+};
+
+// resolve (100) + query (1000) + interpret (100)
+const maxStep = 1200;
+
+export async function runGenerateModelQuery({
+  cliServer,
+  queryRunner,
+  logger,
+  queryStorageDir,
+  databaseItem,
+  language,
+  progress,
+  token,
+}: GenerateModelOptions): Promise<ModeledMethod[]> {
+  progress({
+    message: "Resolving generate model query",
+    step: 100,
+    maxStep,
+  });
+
+  const queryPath = await resolveGenerateModelQuery(cliServer, databaseItem);
+  if (queryPath === undefined) {
+    return [];
+  }
+
+  // Run the query
+  const completedQuery = await runQuery({
+    queryRunner,
+    databaseItem,
+    queryPath,
+    queryStorageDir,
+    additionalPacks: getOnDiskWorkspaceFolders(),
+    extensionPacks: undefined,
+    progress: ({ step, message }) =>
+      progress({
+        message: `Generating models: ${message}`,
+        step: 100 + step,
+        maxStep,
+      }),
+    token,
+  });
+
+  if (!completedQuery) {
+    return [];
+  }
+
+  progress({
+    message: "Decoding results",
+    step: 1100,
+    maxStep,
+  });
+
+  const decodedBqrs = await cliServer.bqrsDecodeAll(
+    completedQuery.outputDir.bqrsPath,
+  );
+
+  const modelsAsDataLanguage = getModelsAsDataLanguage(language);
+
+  const modeledMethods: ModeledMethod[] = [];
+
+  for (const resultSetName in decodedBqrs) {
+    const definition = Object.values(modelsAsDataLanguage.predicates).find(
+      (definition) => definition.extensiblePredicate === resultSetName,
+    );
+    if (definition === undefined) {
+      void logger.log(`No predicate found for ${resultSetName}`);
+
+      continue;
+    }
+
+    const resultSet = decodedBqrs[resultSetName];
+
+    if (
+      resultSet.tuples.some((tuple) =>
+        tuple.some((value) => typeof value === "object"),
+      )
+    ) {
+      void logger.log(
+        `Skipping ${resultSetName} because it contains undefined values`,
+      );
+      continue;
+    }
+
+    modeledMethods.push(
+      ...resultSet.tuples.map((tuple) => {
+        const row = tuple.filter(
+          (value): value is DataTuple => typeof value !== "object",
+        );
+
+        return definition.readModeledMethod(row);
+      }),
+    );
+  }
+
+  return modeledMethods;
+}
+
+async function resolveGenerateModelQuery(
+  cliServer: CodeQLCliServer,
+  databaseItem: DatabaseItem,
+): Promise<string | undefined> {
+  const packsToSearch = [`codeql/${databaseItem.language}-queries`];
+
+  const queries = await resolveQueries(
+    cliServer,
+    packsToSearch,
+    "generate model",
+    {
+      "query path": "queries/modeling/GenerateModel.ql",
+    },
+  );
+  if (queries.length !== 1) {
+    void showAndLogExceptionWithTelemetry(
+      extLogger,
+      telemetryListener,
+      redactableError`Expected exactly one generate model query, got ${queries.length}`,
+    );
+    return undefined;
+  }
+
+  return queries[0];
+}

extensions/ql-vscode/src/model-editor/model-editor-view.ts

@@ -51,6 +51,10 @@ import { ModelingStore } from "./modeling-store";
 import { ModelEditorViewTracker } from "./model-editor-view-tracker";
 import { ModelingEvents } from "./modeling-events";
 import { getModelsAsDataLanguage, ModelsAsDataLanguage } from "./languages";
+import {
+  isGenerateModelSupported,
+  runGenerateModelQuery,
+} from "./generate-model-queries";
 
 export class ModelEditorView extends AbstractWebview<
   ToModelEditorMessage,
@@ -266,7 +270,11 @@ export class ModelEditorView extends AbstractWebview<
 
         break;
       case "generateMethod":
-        await this.generateModeledMethods();
+        if (isFlowModelGenerationSupported(this.language)) {
+          await this.generateModeledMethodsFromFlow();
+        } else if (isGenerateModelSupported(this.language)) {
+          await this.generateModeledMethodsFromGenerateModel();
+        }
         void telemetryListener?.sendUIInteraction(
           "model-editor-generate-modeled-methods",
         );
@@ -371,7 +379,8 @@ export class ModelEditorView extends AbstractWebview<
   private async setViewState(): Promise<void> {
     const showFlowGeneration =
       this.modelConfig.flowGeneration &&
-      isFlowModelGenerationSupported(this.language);
+      (isFlowModelGenerationSupported(this.language) ||
+        isGenerateModelSupported(this.language));
 
     const showLlmButton =
       this.databaseItem.language === "java" && this.modelConfig.llmGeneration;
@@ -464,7 +473,7 @@ export class ModelEditorView extends AbstractWebview<
     }
   }
 
-  protected async generateModeledMethods(): Promise<void> {
+  protected async generateModeledMethodsFromFlow(): Promise<void> {
     await withProgress(
       async (progress) => {
         const tokenSource = new CancellationTokenSource();
@@ -537,6 +546,48 @@ export class ModelEditorView extends AbstractWebview<
     );
   }
 
+  protected async generateModeledMethodsFromGenerateModel(): Promise<void> {
+    await withProgress(
+      async (progress) => {
+        const tokenSource = new CancellationTokenSource();
+
+        try {
+          const modeledMethods = await runGenerateModelQuery({
+            cliServer: this.cliServer,
+            queryRunner: this.queryRunner,
+            logger: this.app.logger,
+            queryStorageDir: this.queryStorageDir,
+            databaseItem: this.databaseItem,
+            language: this.language,
+            progress,
+            token: tokenSource.token,
+          });
+
+          const modeledMethodsByName: Record<string, ModeledMethod[]> = {};
+
+          for (const modeledMethod of modeledMethods) {
+            if (!(modeledMethod.signature in modeledMethodsByName)) {
+              modeledMethodsByName[modeledMethod.signature] = [];
+            }
+
+            modeledMethodsByName[modeledMethod.signature].push(modeledMethod);
+          }
+
+          this.addModeledMethods(modeledMethodsByName);
+        } catch (e: unknown) {
+          void showAndLogExceptionWithTelemetry(
+            this.app.logger,
+            this.app.telemetry,
+            redactableError(
+              asError(e),
+            )`Failed to generate models: ${getErrorMessage(e)}`,
+          );
+        }
+      },
+      { cancellable: false },
+    );
+  }
+
   private async generateModeledMethodsFromLlm(
     packageName: string,
     methodSignatures: string[],