aws-cdk
Version:
CDK Toolkit, the command line tool for CDK apps
143 lines • 18.6 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.validateSourceOptions = exports.setEnvironment = exports.readFromStack = exports.readFromPath = exports.generateStack = exports.generateCdkApp = exports.MIGRATE_SUPPORTED_LANGUAGES = void 0;
/* eslint-disable @typescript-eslint/no-require-imports */
/* eslint-disable @typescript-eslint/no-var-requires */
const fs = require("fs");
const path = require("path");
const cx_api_1 = require("@aws-cdk/cx-api");
const cdk_from_cfn = require("cdk-from-cfn");
const init_1 = require("../../lib/init");
const api_1 = require("../api");
const archive_1 = require("../util/archive");
const camelCase = require('camelcase');
const decamelize = require('decamelize');
/** The list of languages supported by the built-in noctilucent binary. */
exports.MIGRATE_SUPPORTED_LANGUAGES = cdk_from_cfn.supported_languages();
/**
* Generates a CDK app from a yaml or json template.
*
* @param stackName The name to assign to the stack in the generated app
* @param stack The yaml or json template for the stack
* @param language The language to generate the CDK app in
* @param outputPath The path at which to generate the CDK app
*/
async function generateCdkApp(stackName, stack, language, outputPath, compress) {
const resolvedOutputPath = path.join(outputPath ?? process.cwd(), stackName);
const formattedStackName = decamelize(stackName);
try {
fs.rmSync(resolvedOutputPath, { recursive: true, force: true });
fs.mkdirSync(resolvedOutputPath, { recursive: true });
const generateOnly = compress;
await (0, init_1.cliInit)({
type: 'app',
language,
canUseNetwork: true,
generateOnly,
workDir: resolvedOutputPath,
stackName,
});
let stackFileName;
switch (language) {
case 'typescript':
stackFileName = `${resolvedOutputPath}/lib/${formattedStackName}-stack.ts`;
break;
case 'java':
stackFileName = `${resolvedOutputPath}/src/main/java/com/myorg/${camelCase(formattedStackName, { pascalCase: true })}Stack.java`;
break;
case 'python':
stackFileName = `${resolvedOutputPath}/${formattedStackName.replace(/-/g, '_')}/${formattedStackName.replace(/-/g, '_')}_stack.py`;
break;
case 'csharp':
stackFileName = `${resolvedOutputPath}/src/${camelCase(formattedStackName, { pascalCase: true })}/${camelCase(formattedStackName, { pascalCase: true })}Stack.cs`;
break;
case 'go':
stackFileName = `${resolvedOutputPath}/${formattedStackName}.go`;
break;
default:
throw new Error(`${language} is not supported by CDK Migrate. Please choose from: ${exports.MIGRATE_SUPPORTED_LANGUAGES.join(', ')}`);
}
fs.writeFileSync(stackFileName, stack);
if (compress) {
await (0, archive_1.zipDirectory)(resolvedOutputPath, `${resolvedOutputPath}.zip`);
fs.rmSync(resolvedOutputPath, { recursive: true, force: true });
}
}
catch (error) {
fs.rmSync(resolvedOutputPath, { recursive: true, force: true });
throw error;
}
}
exports.generateCdkApp = generateCdkApp;
/**
* Generates a CDK stack file.
* @param template The template to translate into a CDK stack
* @param stackName The name to assign to the stack
* @param language The language to generate the stack in
* @returns A string representation of a CDK stack file
*/
function generateStack(template, stackName, language) {
try {
const formattedStackName = `${camelCase(decamelize(stackName), { pascalCase: true })}Stack`;
return cdk_from_cfn.transmute(template, language, formattedStackName);
}
catch (e) {
throw new Error(`stack generation failed due to error '${e.message}'`);
}
}
exports.generateStack = generateStack;
/**
* Reads and returns a stack template from a local path.
*
* @param inputPath The location of the template
* @returns A string representation of the template if present, otherwise undefined
*/
function readFromPath(inputPath) {
try {
return inputPath ? fs.readFileSync(inputPath, 'utf8') : undefined;
}
catch (e) {
throw new Error(`'${inputPath}' is not a valid path.`);
}
}
exports.readFromPath = readFromPath;
/**
* Reads and returns a stack template from a deployed CloudFormation stack.
*
* @param stackName The name of the stack
* @param sdkProvider The sdk provider for making CloudFormation calls
* @param environment The account and region where the stack is deployed
* @returns A string representation of the template if present, otherwise undefined
*/
async function readFromStack(stackName, sdkProvider, environment) {
const cloudFormation = (await sdkProvider.forEnvironment(environment, api_1.Mode.ForReading)).sdk.cloudFormation();
return (await cloudFormation.getTemplate({
StackName: stackName,
}).promise()).TemplateBody;
}
exports.readFromStack = readFromStack;
/**
* Sets the account and region for making CloudFormation calls.
* @param account The account to use
* @param region The region to use
* @returns The environment object
*/
function setEnvironment(account, region) {
return { account: account ?? cx_api_1.UNKNOWN_ACCOUNT, region: region ?? cx_api_1.UNKNOWN_REGION, name: 'cdk-migrate-env' };
}
exports.setEnvironment = setEnvironment;
/**
* Validates that exactly one source option has been provided.
* @param fromPath The content of the flag `--from-path`
* @param fromStack the content of the flag `--from-stack`
*/
function validateSourceOptions(fromPath, fromStack) {
if (fromPath && fromStack) {
throw new Error('Only one of `--from-path` or `--from-stack` may be provided.');
}
if (!fromPath && !fromStack) {
throw new Error('Either `--from-path` or `--from-stack` must be used to provide the source of the CloudFormation template.');
}
}
exports.validateSourceOptions = validateSourceOptions;
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process.cwd(), stackName);\n  const formattedStackName = decamelize(stackName);\n\n  try {\n    fs.rmSync(resolvedOutputPath, { recursive: true, force: true });\n    fs.mkdirSync(resolvedOutputPath, { recursive: true });\n    const generateOnly = compress;\n    await cliInit({\n      type: 'app',\n      language,\n      canUseNetwork: true,\n      generateOnly,\n      workDir: resolvedOutputPath,\n      stackName,\n    });\n\n    let stackFileName: string;\n    switch (language) {\n      case 'typescript':\n        stackFileName = `${resolvedOutputPath}/lib/${formattedStackName}-stack.ts`;\n        break;\n      case 'java':\n        stackFileName = `${resolvedOutputPath}/src/main/java/com/myorg/${camelCase(formattedStackName, { pascalCase: true })}Stack.java`;\n        break;\n      case 'python':\n        stackFileName = `${resolvedOutputPath}/${formattedStackName.replace(/-/g, '_')}/${formattedStackName.replace(/-/g, '_')}_stack.py`;\n        break;\n      case 'csharp':\n        stackFileName = `${resolvedOutputPath}/src/${camelCase(formattedStackName, { pascalCase: true })}/${camelCase(formattedStackName, { pascalCase: true })}Stack.cs`;\n        break;\n      case 'go':\n        stackFileName = `${resolvedOutputPath}/${formattedStackName}.go`;\n        break;\n      default:\n        throw new Error(`${language} is not supported by CDK Migrate. Please choose from: ${MIGRATE_SUPPORTED_LANGUAGES.join(', ')}`);\n    }\n    fs.writeFileSync(stackFileName, stack);\n    if (compress) {\n      await zipDirectory(resolvedOutputPath, `${resolvedOutputPath}.zip`);\n      fs.rmSync(resolvedOutputPath, { recursive: true, force: true });\n    }\n  } catch (error) {\n    fs.rmSync(resolvedOutputPath, { recursive: true, force: true });\n    throw error;\n  }\n}\n\n/**\n * Generates a CDK stack file.\n * @param template The template to translate into a CDK stack\n * @param stackName The name to assign to the stack\n * @param language The language to generate the stack in\n * @returns A string representation of a CDK stack file\n */\nexport function generateStack(template: string, stackName: string, language: string) {\n  try {\n    const formattedStackName = `${camelCase(decamelize(stackName), { pascalCase: true })}Stack`;\n    return cdk_from_cfn.transmute(template, language, formattedStackName);\n  } catch (e) {\n    throw new Error(`stack generation failed due to error '${(e as Error).message}'`);\n  }\n}\n\n/**\n * Reads and returns a stack template from a local path.\n *\n * @param inputPath The location of the template\n * @returns A string representation of the template if present, otherwise undefined\n */\nexport function readFromPath(inputPath?: string): string | undefined {\n  try {\n    return inputPath ? fs.readFileSync(inputPath, 'utf8') : undefined;\n  } catch (e) {\n    throw new Error(`'${inputPath}' is not a valid path.`);\n  }\n\n}\n\n/**\n * Reads and returns a stack template from a deployed CloudFormation stack.\n *\n * @param stackName The name of the stack\n * @param sdkProvider The sdk provider for making CloudFormation calls\n * @param environment The account and region where the stack is deployed\n * @returns A string representation of the template if present, otherwise undefined\n */\nexport async function readFromStack(stackName: string, sdkProvider: SdkProvider, environment: Environment): Promise<string | undefined> {\n  const cloudFormation = (await sdkProvider.forEnvironment(environment, Mode.ForReading)).sdk.cloudFormation();\n\n  return (await cloudFormation.getTemplate({\n    StackName: stackName,\n  }).promise()).TemplateBody;\n}\n\n/**\n * Sets the account and region for making CloudFormation calls.\n * @param account The account to use\n * @param region The region to use\n * @returns The environment object\n */\nexport function setEnvironment(account?: string, region?: string): Environment {\n  return { account: account ?? UNKNOWN_ACCOUNT, region: region ?? UNKNOWN_REGION, name: 'cdk-migrate-env' };\n}\n\n/**\n * Validates that exactly one source option has been provided.\n * @param fromPath The content of the flag `--from-path`\n * @param fromStack the content of the flag `--from-stack`\n */\nexport function validateSourceOptions(fromPath?: string, fromStack?: boolean) {\n  if (fromPath && fromStack) {\n    throw new Error('Only one of `--from-path` or `--from-stack` may be provided.');\n  }\n\n  if (!fromPath && !fromStack) {\n    throw new Error('Either `--from-path` or `--from-stack` must be used to provide the source of the CloudFormation template.');\n  }\n}\n"]}