@aws-cdk/core
Version:
AWS Cloud Development Kit Core Library
77 lines • 11.8 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.App = void 0;
const cxapi = require("@aws-cdk/cx-api");
const tree_metadata_1 = require("./private/tree-metadata");
const stage_1 = require("./stage");
const APP_SYMBOL = Symbol.for('@aws-cdk/core.App');
/**
* A construct which represents an entire CDK app. This construct is normally the root of the construct tree.
*
* You would normally define an `App` instance in your program's entrypoint,
* then define constructs where the app is used as the parent scope.
*
* After all the child constructs are defined within the app, you should call
* `app.synth()` which will emit a "cloud assembly" from this app into the
* directory specified by `outdir`. Cloud assemblies includes artifacts such as
* CloudFormation templates and assets that are needed to deploy this app into
* the AWS cloud.
*
* @see https://docs.aws.amazon.com/cdk/latest/guide/apps.html
*/
class App extends stage_1.Stage {
/**
* Checks if an object is an instance of the `App` class.
*
* @param obj The object to evaluate.
* @returns `true` if `obj` is an `App`.
*/
static isApp(obj) {
return APP_SYMBOL in obj;
}
/**
* Initializes a CDK application.
*
* @param props initialization properties.
*/
constructor(props = {}) {
var _a, _b;
super(undefined, '', {
outdir: (_a = props.outdir) !== null && _a !== void 0 ? _a : process.env[cxapi.OUTDIR_ENV],
});
Object.defineProperty(this, APP_SYMBOL, { value: true });
this.loadContext(props.context);
if (props.stackTraces === false) {
this.node.setContext(cxapi.DISABLE_METADATA_STACK_TRACE, true);
}
const analyticsReporting = (_b = props.analyticsReporting) !== null && _b !== void 0 ? _b : props.runtimeInfo;
if (analyticsReporting !== undefined) {
this.node.setContext(cxapi.ANALYTICS_REPORTING_ENABLED_CONTEXT, analyticsReporting);
}
const autoSynth = props.autoSynth !== undefined ? props.autoSynth : cxapi.OUTDIR_ENV in process.env;
if (autoSynth) {
// synth() guarantuees it will only execute once, so a default of 'true'
// doesn't bite manual calling of the function.
process.once('beforeExit', () => this.synth());
}
if (props.treeMetadata === undefined || props.treeMetadata) {
new tree_metadata_1.TreeMetadata(this);
}
}
loadContext(defaults = {}) {
// prime with defaults passed through constructor
for (const [k, v] of Object.entries(defaults)) {
this.node.setContext(k, v);
}
// read from environment
const contextJson = process.env[cxapi.CONTEXT_ENV];
const contextFromEnvironment = contextJson
? JSON.parse(contextJson)
: {};
for (const [k, v] of Object.entries(contextFromEnvironment)) {
this.node.setContext(k, v);
}
}
}
exports.App = App;
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* as cxapi from '@aws-cdk/cx-api';\nimport { TreeMetadata } from './private/tree-metadata';\nimport { Stage } from './stage';\n\nconst APP_SYMBOL = Symbol.for('@aws-cdk/core.App');\n\n                                         \nexport interface AppProps {\n                                                                                                                                                                                                                                                                                                                                                                              \n  readonly autoSynth?: boolean;\n\n                                                                                                                                                                                                                                                        \n  readonly outdir?: string;\n\n                                                                                                                                                                                                                       \n  readonly stackTraces?: boolean;\n\n                                                                                                                                                                                                     \n  readonly runtimeInfo?: boolean;\n\n                                                                                                                                                     \n  readonly analyticsReporting?: boolean;\n\n                                                                                                                                                                                                                                                                             \n  readonly context?: { [key: string]: any };\n\n                                                                                                       \n  readonly treeMetadata?: boolean;\n}\n\n                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            \nexport class App extends Stage {\n                                                                                                                                                         \n  public static isApp(obj: any): obj is App {\n    return APP_SYMBOL in obj;\n  }\n\n                                                                                           \n  constructor(props: AppProps = {}) {\n    super(undefined as any, '', {\n      outdir: props.outdir ?? process.env[cxapi.OUTDIR_ENV],\n    });\n\n    Object.defineProperty(this, APP_SYMBOL, { value: true });\n\n    this.loadContext(props.context);\n\n    if (props.stackTraces === false) {\n      this.node.setContext(cxapi.DISABLE_METADATA_STACK_TRACE, true);\n    }\n\n    const analyticsReporting = props.analyticsReporting ?? props.runtimeInfo;\n\n    if (analyticsReporting !== undefined) {\n      this.node.setContext(cxapi.ANALYTICS_REPORTING_ENABLED_CONTEXT, analyticsReporting);\n    }\n\n    const autoSynth = props.autoSynth !== undefined ? props.autoSynth : cxapi.OUTDIR_ENV in process.env;\n    if (autoSynth) {\n      // synth() guarantuees it will only execute once, so a default of 'true'\n      // doesn't bite manual calling of the function.\n      process.once('beforeExit', () => this.synth());\n    }\n\n    if (props.treeMetadata === undefined || props.treeMetadata) {\n      new TreeMetadata(this);\n    }\n  }\n\n  private loadContext(defaults: { [key: string]: string } = { }) {\n    // prime with defaults passed through constructor\n    for (const [k, v] of Object.entries(defaults)) {\n      this.node.setContext(k, v);\n    }\n\n    // read from environment\n    const contextJson = process.env[cxapi.CONTEXT_ENV];\n    const contextFromEnvironment = contextJson\n      ? JSON.parse(contextJson)\n      : { };\n\n    for (const [k, v] of Object.entries(contextFromEnvironment)) {\n      this.node.setContext(k, v);\n    }\n  }\n}\n"]}