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1"use strict";
2Object.defineProperty(exports, "__esModule", { value: true });
3exports.SynthUtils = void 0;
4const fs = require("fs");
5const path = require("path");
6const core = require("aws-cdk-lib");
7class SynthUtils {
8 /**
9 * Returns the cloud assembly template artifact for a stack.
10 */
11 static synthesize(stack, options = {}) {
12 // always synthesize against the root (be it an App or whatever) so all artifacts will be included
13 const assembly = synthesizeApp(stack, options);
14 return stripNewStyleSynthCfnElements(assembly.getStackArtifact(stack.artifactId));
15 }
16 /**
17 * Synthesizes the stack and returns the resulting CloudFormation template.
18 */
19 static toCloudFormation(stack, options = {}) {
20 const synth = this._synthesizeWithNested(stack, options);
21 if (isStackArtifact(synth)) {
22 return synth.template;
23 }
24 else {
25 return synth;
26 }
27 }
28 /**
29 * @returns Returns a subset of the synthesized CloudFormation template (only specific resource types).
30 */
31 static subset(stack, options) {
32 const template = this.toCloudFormation(stack);
33 if (template.Resources) {
34 for (const [key, resource] of Object.entries(template.Resources)) {
35 if (options.resourceTypes && !options.resourceTypes.includes(resource.Type)) {
36 delete template.Resources[key];
37 }
38 }
39 }
40 return template;
41 }
42 /**
43 * Synthesizes the stack and returns a `CloudFormationStackArtifact` which can be inspected.
44 * Supports nested stacks as well as normal stacks.
45 *
46 * @return CloudFormationStackArtifact for normal stacks or the actual template for nested stacks
47 * @internal
48 */
49 static _synthesizeWithNested(stack, options = {}) {
50 // always synthesize against the root (be it an App or whatever) so all artifacts will be included
51 const assembly = synthesizeApp(stack, options);
52 // if this is a nested stack (it has a parent), then just read the template as a string
53 if (stack.nestedStackParent) {
54 return JSON.parse(fs.readFileSync(path.join(assembly.directory, stack.templateFile)).toString('utf-8'));
55 }
56 return stripNewStyleSynthCfnElements(assembly.getStackArtifact(stack.artifactId));
57 }
58}
59exports.SynthUtils = SynthUtils;
60/**
61 * Synthesizes the app in which a stack resides and returns the cloud assembly object.
62 */
63function synthesizeApp(stack, options) {
64 const root = stack.node.root;
65 if (!core.Stage.isStage(root)) {
66 throw new Error('unexpected: all stacks must be part of a Stage or an App');
67 }
68 // to support incremental assertions (i.e. "expect(stack).toNotContainSomething(); doSomething(); expect(stack).toContainSomthing()")
69 const force = true;
70 return root.synth({
71 force,
72 ...options,
73 });
74}
75function stripNewStyleSynthCfnElements(stackArtifact) {
76 const synthesizedTemplate = stackArtifact.template;
77 // if new-style synthesis is not explicitly set, remove the extra generated Rule and Parameter from the synthesized template,
78 // to avoid changing many tests that rely on the template being exactly what it is
79 delete synthesizedTemplate?.Rules?.CheckBootstrapVersion;
80 if (Object.keys(synthesizedTemplate?.Rules ?? {}).length === 0) {
81 delete synthesizedTemplate?.Rules;
82 }
83 delete synthesizedTemplate?.Parameters?.BootstrapVersion;
84 if (Object.keys(synthesizedTemplate?.Parameters ?? {}).length === 0) {
85 delete synthesizedTemplate?.Parameters;
86 }
87 return stackArtifact;
88}
89function isStackArtifact(x) {
90 return 'template' in x;
91}
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* as fs from 'fs';\nimport * as path from 'path';\nimport * as core from 'aws-cdk-lib';\nimport * as cxapi from 'aws-cdk-lib/cx-api';\n\nexport class SynthUtils {\n  /**\n   * Returns the cloud assembly template artifact for a stack.\n   */\n  public static synthesize(stack: core.Stack, options: core.StageSynthesisOptions = { }): cxapi.CloudFormationStackArtifact {\n    // always synthesize against the root (be it an App or whatever) so all artifacts will be included\n    const assembly = synthesizeApp(stack, options);\n    return stripNewStyleSynthCfnElements(assembly.getStackArtifact(stack.artifactId));\n  }\n\n  /**\n   * Synthesizes the stack and returns the resulting CloudFormation template.\n   */\n  public static toCloudFormation(stack: core.Stack, options: core.StageSynthesisOptions = { }): any {\n    const synth = this._synthesizeWithNested(stack, options);\n    if (isStackArtifact(synth)) {\n      return synth.template;\n    } else {\n      return synth;\n    }\n  }\n\n  /**\n   * @returns Returns a subset of the synthesized CloudFormation template (only specific resource types).\n   */\n  public static subset(stack: core.Stack, options: SubsetOptions): any {\n    const template = this.toCloudFormation(stack);\n    if (template.Resources) {\n      for (const [key, resource] of Object.entries(template.Resources)) {\n        if (options.resourceTypes && !options.resourceTypes.includes((resource as any).Type)) {\n          delete template.Resources[key];\n        }\n      }\n    }\n\n    return template;\n  }\n\n  /**\n   * Synthesizes the stack and returns a `CloudFormationStackArtifact` which can be inspected.\n   * Supports nested stacks as well as normal stacks.\n   *\n   * @return CloudFormationStackArtifact for normal stacks or the actual template for nested stacks\n   * @internal\n   */\n  public static _synthesizeWithNested(stack: core.Stack, options: core.StageSynthesisOptions = { }): cxapi.CloudFormationStackArtifact | object {\n    // always synthesize against the root (be it an App or whatever) so all artifacts will be included\n    const assembly = synthesizeApp(stack, options);\n\n    // if this is a nested stack (it has a parent), then just read the template as a string\n    if (stack.nestedStackParent) {\n      return JSON.parse(fs.readFileSync(path.join(assembly.directory, stack.templateFile)).toString('utf-8'));\n    }\n\n    return stripNewStyleSynthCfnElements(assembly.getStackArtifact(stack.artifactId));\n  }\n}\n\n/**\n * Synthesizes the app in which a stack resides and returns the cloud assembly object.\n */\nfunction synthesizeApp(stack: core.Stack, options: core.StageSynthesisOptions): cxapi.CloudAssembly {\n  const root = stack.node.root;\n  if (!core.Stage.isStage(root)) {\n    throw new Error('unexpected: all stacks must be part of a Stage or an App');\n  }\n\n  // to support incremental assertions (i.e. \"expect(stack).toNotContainSomething(); doSomething(); expect(stack).toContainSomthing()\")\n  const force = true;\n\n  return root.synth({\n    force,\n    ...options,\n  });\n}\n\nfunction stripNewStyleSynthCfnElements(stackArtifact: cxapi.CloudFormationStackArtifact): cxapi.CloudFormationStackArtifact {\n  const synthesizedTemplate = stackArtifact.template;\n\n  // if new-style synthesis is not explicitly set, remove the extra generated Rule and Parameter from the synthesized template,\n  // to avoid changing many tests that rely on the template being exactly what it is\n  delete synthesizedTemplate?.Rules?.CheckBootstrapVersion;\n  if (Object.keys(synthesizedTemplate?.Rules ?? {}).length === 0) {\n    delete synthesizedTemplate?.Rules;\n  }\n  delete synthesizedTemplate?.Parameters?.BootstrapVersion;\n  if (Object.keys(synthesizedTemplate?.Parameters ?? {}).length === 0) {\n    delete synthesizedTemplate?.Parameters;\n  }\n\n  return stackArtifact;\n}\n\nexport interface SubsetOptions {\n  /**\n   * Match all resources of the given type\n   */\n  resourceTypes?: string[];\n}\n\nfunction isStackArtifact(x: object): x is cxapi.CloudFormationStackArtifact {\n  return 'template' in x;\n}"]}
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