chore: adds ts-dependency-grapher

.github/CODEOWNERS

@@ -1080,6 +1080,7 @@ playwright.storybook.config.ts @grafana/grafana-frontend-platform
 /scripts/**/generate-transformations* @grafana/datapro
 /scripts/webpack/ @grafana/frontend-ops
 /scripts/generate-a11y-report.sh @grafana/grafana-frontend-platform
+/scripts/ts-dependency-grapher @grafana/plugins-platform-frontend
 eslint-suppressions.json @grafanabot
 
 # Design system

scripts/ts-dependency-grapher/.gitignore

@@ -0,0 +1,32 @@
+node_modules
+npm-debug.log
+yarn-error.log
+coverage/
+.aws-config.json
+awsconfig
+/.awcache
+/dist
+/public/build
+/emails/dist
+/reports
+/e2e/tmp
+/scripts/grafana-server/tmp
+vendor/
+/docs/menu.yaml
+/requests
+tsconfig.tsbuildinfo
+__debug_bin*
+*.cov
+/out
+
+# yarn
+.yarn
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# Ignore OSX indexing
+.DS_Store
+

scripts/ts-dependency-grapher/LICENSE_APACHE2

@@ -0,0 +1,202 @@
+
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+                        http://www.apache.org/licenses/
+
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scripts/ts-dependency-grapher/README.md

@@ -0,0 +1,74 @@
+# ts-dependency-grapher
+
+A small utility for analyzing TypeScript dependency relationships. It searches for a given symbol and outputs its dependencies in [DOT](https://en.wikipedia.org/wiki/DOT_%28graph_description_language%29) format.
+
+This can be useful when exploring complex dependency trees or when planning refactors.
+
+> [!WARNING]
+> Currently only tested on macOS
+
+## Installation
+
+```bash
+cd scripts/ts-dependency-grapher
+yarn
+```
+
+## Usage
+
+The tool expects two arguments:
+
+1. The name of the function, variable, or class to search for
+2. The path to the file where the symbol is declared
+
+```bash
+node index.ts getExtensionPointPluginDependencies ../../public/app/features/plugins/extensions/utils.tsx
+```
+
+### Options
+
+#### --level
+
+Controls how many levels of dependencies are traversed.
+
+- Default: 1
+- Higher values will increase processing time
+
+```bash
+node index.ts getExtensionPointPluginDependencies ../../public/app/features/plugins/extensions/utils.tsx --level=3
+```
+
+#### --svg
+
+Generates an SVG visualization in addition to the .gv file.
+Requires [Graphviz](https://graphviz.org/download/) to be installed and available in your PATH.
+
+```bash
+node index.ts getExtensionPointPluginDependencies ../../public/app/features/plugins/extensions/utils.tsx --svg
+```
+
+#### --debug
+
+Generates more log output
+
+```bash
+node index.ts getExtensionPointPluginDependencies ../../public/app/features/plugins/extensions/utils.tsx --debug
+```
+
+## Output
+
+`.gv` files are written to the out directory
+
+When `--svg` is enabled, a corresponding `.svg` file is generated.
+
+You can also output to many other [formats](https://graphviz.org/docs/outputs/) by calling `dot` manually like
+
+```bash
+dot -Tpng getExtensionPointPluginDependencies.gv > getExtensionPointPluginDependencies.png
+```
+
+Read more about output formats [here](https://graphviz.org/docs/outputs/).
+
+## License
+
+Apache License v2

scripts/ts-dependency-grapher/dot.ts

@@ -0,0 +1,109 @@
+import type { DotNode } from './types.ts';
+
+export function generateHTMLStringLabel(node: DotNode) {
+  return `<<table border="0">
+			<tr><td><b>${node.name}</b></td></tr>
+      <tr><td>(${node.type})</td></tr>
+		</table>>`;
+}
+
+export function generateNodeColor(node: DotNode) {
+  if (node.type === 'hook') {
+    return 'aliceblue';
+  }
+
+  if (node.type === 'component') {
+    return 'cornsilk';
+  }
+
+  if (node.type === 'variable') {
+    return 'bisque';
+  }
+
+  if (node.type === 'class') {
+    return 'pink';
+  }
+
+  return '';
+}
+
+export function generateDotStart({
+  outputDPI = 96,
+  outputHeight = 1080,
+  outputWidth = 1920,
+}: {
+  outputDPI?: number;
+  outputHeight?: number;
+  outputWidth?: number;
+}) {
+  let output = '';
+  const width = outputWidth / outputDPI;
+  const height = outputHeight / outputDPI;
+  output += `digraph graphname {\n`;
+  output += `\trankdir="LR"\n`;
+  output += `\tgraph [size="${width},${height}!" dpi=${outputDPI}];\n`;
+
+  return output;
+}
+
+export function generateDotEnd() {
+  return `}\n`;
+}
+
+export function generateDotNode(node: DotNode) {
+  const label = generateHTMLStringLabel(node);
+  const color = generateNodeColor(node);
+  return `\t${node.name} [style="filled" fillcolor="${color}" shape=rect label=${label} URL="file://${node.file}" tooltip="${node.file}"]\n`;
+}
+
+export function generateDotEdge(parent: DotNode, dependant: DotNode) {
+  return `${parent.name} -> ${dependant.name}`;
+}
+
+export function generateDotContent({
+  level = 0,
+  output,
+  outputDPI,
+  outputHeight,
+  outputWidth,
+  parent,
+  seen,
+}: {
+  level?: number;
+  output: string;
+  outputDPI?: number;
+  outputHeight?: number;
+  outputWidth?: number;
+  parent: DotNode;
+  seen: Set<string>;
+}) {
+  if (level === 0) {
+    output += generateDotStart({ outputDPI, outputHeight, outputWidth });
+  }
+
+  output += generateDotNode(parent);
+  for (const dependant of parent.dependants) {
+    const edge = generateDotEdge(parent, dependant);
+    if (seen.has(edge)) {
+      continue;
+    }
+    seen.add(edge);
+    const depOutput = generateDotContent({
+      output,
+      outputDPI,
+      outputHeight,
+      outputWidth,
+      parent: dependant,
+      seen,
+      level: level + 1,
+    });
+    output = depOutput;
+    output += `${edge} [dir=back]\n`;
+  }
+
+  if (level === 0) {
+    output += generateDotEnd();
+  }
+
+  return output;
+}

scripts/ts-dependency-grapher/helpers.ts

@@ -0,0 +1,272 @@
+import chalk from 'chalk';
+import {
+  type ClassDeclaration,
+  type FunctionDeclaration,
+  Node,
+  type SourceFile,
+  SyntaxKind,
+  type VariableDeclaration,
+} from 'ts-morph';
+
+import type { DotNode, NodeType } from './types.ts';
+
+const hookNameRegex = /^use[A-Z]/;
+const classNameRegex = /^[A-Z]/;
+
+export function getFunction(source: SourceFile, name: string): FunctionDeclaration | undefined {
+  const fn = source.getFunction(name);
+
+  return fn;
+}
+
+export function getVariable(source: SourceFile, name: string): VariableDeclaration | undefined {
+  const v = source.getVariableDeclaration(name);
+
+  return v;
+}
+
+export function getClass(source: SourceFile, name: string): ClassDeclaration | undefined {
+  const v = source.getClass(name);
+
+  return v;
+}
+
+export function getFile(node: Node): string {
+  return node.getSourceFile().getFilePath();
+}
+
+export function getName(node: Node): string {
+  if (Node.isVariableDeclaration(node)) {
+    return node.getName();
+  }
+
+  if (Node.isVariableStatement(node)) {
+    return node.getDeclarations()[0]?.getName();
+  }
+
+  if (Node.isFunctionDeclaration(node)) {
+    return node.getNameOrThrow();
+  }
+
+  if (Node.isMethodDeclaration(node)) {
+    return node.getName();
+  }
+
+  if (Node.isArrowFunction(node)) {
+    const parent = node.getParent();
+
+    if (Node.isVariableDeclaration(parent)) {
+      return parent.getName();
+    }
+
+    if (Node.isPropertyAssignment(parent)) {
+      return parent.getName();
+    }
+
+    if (Node.isPropertyDeclaration(parent)) {
+      return parent.getName();
+    }
+
+    if (Node.isCallExpression(parent)) {
+      const expression = parent.getExpression();
+
+      if (Node.isIdentifier(expression)) {
+        return expression.getText();
+      }
+
+      if (Node.isPropertyAccessExpression(expression)) {
+        return expression.getName();
+      }
+    }
+
+    return 'unknown';
+  }
+
+  if (Node.isClassDeclaration(node)) {
+    return node.getNameOrThrow();
+  }
+
+  return 'unknown';
+}
+
+function hasJsxTypeReturns(node: Node): boolean {
+  if (!Node.isFunctionDeclaration(node) && !Node.isMethodDeclaration(node) && !Node.isArrowFunction(node)) {
+    return false;
+  }
+
+  const returnType = node.getReturnType();
+  const returnTypeText = returnType.getText();
+
+  // Check for common React return types
+  const reactReturnTypes = [
+    'JSX.Element',
+    'ReactElement',
+    'ReactNode',
+    'React.ReactElement',
+    'React.ReactNode',
+    'Element',
+  ];
+
+  return reactReturnTypes.some((r) => returnTypeText.includes(r));
+}
+
+function hasJsxReturn(node: Node): boolean {
+  const jsxElements = node.getDescendantsOfKind(SyntaxKind.JsxElement);
+  const jsxSelfClosing = node.getDescendantsOfKind(SyntaxKind.JsxSelfClosingElement);
+  const jsxFragment = node.getDescendantsOfKind(SyntaxKind.JsxFragment);
+
+  if (jsxElements.length > 0 || jsxSelfClosing.length > 0 || jsxFragment.length > 0) {
+    return true;
+  }
+
+  return hasJsxTypeReturns(node);
+}
+
+function getClassType(node: Node, name: string): NodeType | undefined {
+  if (classNameRegex.test(name) && hasJsxReturn(node)) {
+    return 'component';
+  }
+
+  return 'class';
+}
+
+function getFunctionType(node: Node, name: string, defaultType: NodeType = 'function'): NodeType | undefined {
+  if (hookNameRegex.test(name)) {
+    return 'hook';
+  }
+
+  if (classNameRegex.test(name) && hasJsxReturn(node)) {
+    return 'component';
+  }
+
+  return defaultType;
+}
+
+export function getType(node: Node, name: string): NodeType | undefined {
+  if (Node.isClassDeclaration(node)) {
+    return getClassType(node, name);
+  }
+
+  if (Node.isFunctionDeclaration(node) || Node.isMethodDeclaration(node) || Node.isArrowFunction(node)) {
+    return getFunctionType(node, name);
+  }
+
+  if (Node.isVariableDeclaration(node)) {
+    const arrowFunction = node.getInitializerIfKind(SyntaxKind.ArrowFunction);
+    if (arrowFunction) {
+      return getFunctionType(arrowFunction, name);
+    }
+
+    const functionDeclaration = node.getInitializerIfKind(SyntaxKind.FunctionDeclaration);
+    if (functionDeclaration) {
+      return getFunctionType(functionDeclaration, name);
+    }
+
+    const callExpression = node.getInitializerIfKind(SyntaxKind.CallExpression);
+    if (callExpression) {
+      return getFunctionType(callExpression, name, 'variable');
+    }
+
+    const classDeclaration = node.getInitializerIfKind(SyntaxKind.ClassDeclaration);
+    if (classDeclaration) {
+      return getClassType(classDeclaration, name);
+    }
+
+    return 'variable';
+  }
+}
+
+function equals(first: DotNode, second: DotNode) {
+  return first.name === second.name && first.file === second.file && first.kind === second.kind;
+}
+
+function getTopMostAncestor(ref: Node) {
+  const ancestor = ref.getFirstAncestor(
+    (node) =>
+      node.getKind() === SyntaxKind.FunctionDeclaration ||
+      node.getKind() === SyntaxKind.MethodDeclaration ||
+      node.getKind() === SyntaxKind.VariableDeclaration ||
+      node.getKind() === SyntaxKind.ClassDeclaration
+  );
+
+  if (!ancestor) {
+    return ref;
+  }
+
+  return getTopMostAncestor(ancestor);
+}
+
+function shouldFilterFile(file: string) {
+  return (
+    file.includes('.test.') ||
+    file.includes('.spec.') ||
+    file.includes('/mocks/') ||
+    file.includes('/node_modules/') ||
+    file.includes('/dist/') ||
+    file.includes('/build/') ||
+    file.includes('/out/')
+  );
+}
+
+export function traverse({
+  dotNode,
+  tsObj,
+  level = 0,
+  maxLevel = 0,
+  debug = false,
+}: {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  tsObj: any;
+  dotNode: DotNode;
+  level?: number;
+  maxLevel?: number;
+  debug?: boolean;
+}) {
+  if (!tsObj?.findReferencesAsNodes) {
+    return;
+  }
+
+  const refs = tsObj?.findReferencesAsNodes() || [];
+  if (debug) {
+    console.log(`searching for ${chalk.green(dotNode.name)}`);
+  }
+
+  for (const ref of refs) {
+    const ancestor = getTopMostAncestor(ref);
+    if (!ancestor) {
+      continue;
+    }
+
+    const file = getFile(ancestor);
+    if (shouldFilterFile(file)) {
+      continue;
+    }
+
+    const name = getName(ancestor);
+    if (name === 'unknown') {
+      continue;
+    }
+
+    const type = getType(ancestor, name);
+    const kind = ancestor.getKindName();
+    const dependant: DotNode = { dependants: [], file, name, type, kind };
+
+    if (equals(dependant, dotNode)) {
+      continue;
+    }
+
+    if (dotNode.dependants.find((d) => equals(d, dependant))) {
+      continue;
+    }
+
+    dotNode.dependants.push(dependant);
+    if (debug) {
+      console.log(
+        `${chalk.yellow(dependant.name)} references ${chalk.yellow(dotNode.name)} at level ${chalk.green(level)} of ${chalk.green(maxLevel)} (${chalk.green(dependant.file)})`
+      );
+    }
+    if (level < maxLevel) {
+      traverse({ dotNode: dependant, tsObj: ancestor, level: level + 1, maxLevel, debug });
+    }
+  }
+}

scripts/ts-dependency-grapher/index.ts

@@ -0,0 +1,74 @@
+import chalk from 'chalk';
+import { globSync } from 'glob';
+import minimist from 'minimist';
+import { Project } from 'ts-morph';
+
+import { generateDotContent } from './dot.ts';
+import { getClass, getFile, getFunction, getName, getType, getVariable, traverse } from './helpers.ts';
+import { outputToSvg, writeToFile } from './io.ts';
+import type { DotNode } from './types.ts';
+
+const argv: minimist.ParsedArgs = minimist(process.argv.slice(2));
+const searchingFor = argv._[0];
+const searchingIn = argv._[1];
+const maxLevel = argv.level ? Number(argv.level) : 0;
+const svg = Boolean(argv.svg) || false;
+const debug = Boolean(argv.debug) || false;
+
+if (!searchingFor) {
+  throw new Error(chalk.red(`Did you forget to supply an argument for what we should search for?`));
+}
+
+if (!searchingIn) {
+  throw new Error(chalk.red(`Did you forget to supply an argument for the file we should start from?`));
+}
+
+console.log(`ts-dependency-grapher started with:
+\t- Name to look for: ${chalk.green(searchingFor)}
+\t- Start in file: ${chalk.green(searchingIn)}
+\t- Maximum levels to traverse: ${chalk.green(maxLevel)}
+\t- Save to svg (requires Graphwiz https://graphviz.org/download/): ${chalk.green(svg)}
+\t- Debug: ${chalk.green(debug)}
+`);
+
+const tsconfigs = globSync('../../**/tsconfig.json', { ignore: ['../../node_modules/**', '../../data/**'] });
+if (tsconfigs.length < 1) {
+  throw new Error(chalk.red(`couldn't find any tsconfig files`));
+}
+
+console.log(`creating ts project from ${chalk.green(tsconfigs[0])}`);
+const project = new Project({ tsConfigFilePath: tsconfigs[0] });
+
+for (let index = 1; index < tsconfigs.length; index++) {
+  const tsconfig = tsconfigs[index];
+  if (debug) {
+    console.log(`Adding source files from ${chalk.green(tsconfig)}`);
+  }
+  project.addSourceFilesFromTsConfig(tsconfig);
+}
+
+const source = project.getSourceFileOrThrow(searchingIn);
+
+const start = getFunction(source, searchingFor) || getVariable(source, searchingFor) || getClass(source, searchingFor);
+
+if (!start) {
+  throw new Error(`couldn't find ${chalk.red(searchingFor)} in ${chalk.red(searchingIn)}`);
+}
+
+const file = getFile(start);
+const name = getName(start);
+const type = getType(start, name);
+const kind = start.getKindName();
+const dotNode: DotNode = { dependants: [], file, kind, name, type };
+
+traverse({ dotNode, tsObj: start, level: 0, maxLevel, debug });
+const output = generateDotContent({
+  parent: dotNode,
+  output: '',
+  seen: new Set(),
+});
+
+writeToFile(searchingFor, output);
+if (svg) {
+  outputToSvg(searchingFor);
+}

scripts/ts-dependency-grapher/io.ts

@@ -0,0 +1,38 @@
+import chalk from 'chalk';
+import { execFileSync } from 'node:child_process';
+import { existsSync, mkdirSync, writeFileSync } from 'node:fs';
+import path from 'node:path';
+
+function getOutputPath() {
+  return path.join(process.cwd(), 'out');
+}
+
+function getFilePath(name: string) {
+  return path.join(getOutputPath(), name);
+}
+
+export function writeToFile(name: string, output: string) {
+  const outputPath = getOutputPath();
+  if (!existsSync(outputPath)) {
+    mkdirSync(outputPath);
+  }
+
+  const filePath = getFilePath(`${name}.gv`);
+  writeFileSync(filePath, output, { encoding: 'utf8' });
+  console.log(`dot file ${chalk.green(filePath)} successfully created`);
+}
+
+export function outputToSvg(name: string) {
+  try {
+    const input = getFilePath(`${name}.gv`);
+    const output = getFilePath(`${name}.svg`);
+    const svgoutput = execFileSync('dot', ['-Tsvg', input], { encoding: 'utf8' });
+    writeFileSync(output, svgoutput, { encoding: 'utf-8' });
+    console.log(`svg file ${chalk.green(output)} successfully created`);
+  } catch (error) {
+    if (error instanceof Error && 'status' in error && error.status === 1) {
+      return;
+    }
+    throw error;
+  }
+}

scripts/ts-dependency-grapher/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "ts-dependency-grapher",
+  "version": "1.0.0",
+  "description": "",
+  "license": "Apache-2.0",
+  "author": "",
+  "type": "module",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "dependencies": {
+    "chalk": "^5.6.2",
+    "glob": "^13.0.0",
+    "minimist": "^1.2.8",
+    "ts-morph": "^27.0.2"
+  },
+  "devDependencies": {
+    "@types/minimist": "^1.2.5"
+  }
+}

scripts/ts-dependency-grapher/types.ts

@@ -0,0 +1,9 @@
+export type NodeType = 'variable' | 'function' | 'class' | 'hook' | 'component';
+
+export interface DotNode {
+  file: string;
+  name: string;
+  type?: NodeType;
+  kind: string;
+  dependants: DotNode[];
+}

scripts/ts-dependency-grapher/yarn.lock

@@ -0,0 +1,163 @@
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+# Manual changes might be lost - proceed with caution!
+
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+
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+  languageName: node
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+  resolution: "@ts-morph/common@npm:0.28.1"
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+    path-browserify: "npm:^1.0.1"
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+  languageName: node
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+"chalk@npm:^5.6.2":
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+"code-block-writer@npm:^13.0.3":
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+  dependencies:
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+    minipass: "npm:^7.1.2"
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+  languageName: node
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+"lru-cache@npm:^11.0.0":
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+  resolution: "lru-cache@npm:11.2.4"
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