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start establishing the concept of "artifacts"
Start moving towards the cloud-assembly specification where an output of a CDK program is a bunch of artifacts and those are processed by the toolkit. Related #956 Related #233 Related #1119
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Elad Ben-Israel
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Feb 27, 2019
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| import cxapi = require('@aws-cdk/cx-api'); | ||
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| export function collectRuntimeInformation(): cxapi.AppRuntime { | ||
| const libraries: { [name: string]: string } = {}; | ||
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| for (const fileName of Object.keys(require.cache)) { | ||
| const pkg = findNpmPackage(fileName); | ||
| if (pkg && !pkg.private) { | ||
| libraries[pkg.name] = pkg.version; | ||
| } | ||
| } | ||
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| // include only libraries that are in the @aws-cdk npm scope | ||
| for (const name of Object.keys(libraries)) { | ||
| if (!name.startsWith('@aws-cdk/')) { | ||
| delete libraries[name]; | ||
| } | ||
| } | ||
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| // add jsii runtime version | ||
| libraries['jsii-runtime'] = getJsiiAgentVersion(); | ||
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| return { libraries }; | ||
| } | ||
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| /** | ||
| * Determines which NPM module a given loaded javascript file is from. | ||
| * | ||
| * The only infromation that is available locally is a list of Javascript files, | ||
| * and every source file is associated with a search path to resolve the further | ||
| * ``require`` calls made from there, which includes its own directory on disk, | ||
| * and parent directories - for example: | ||
| * | ||
| * [ '...repo/packages/aws-cdk-resources/lib/cfn/node_modules', | ||
| * '...repo/packages/aws-cdk-resources/lib/node_modules', | ||
| * '...repo/packages/aws-cdk-resources/node_modules', | ||
| * '...repo/packages/node_modules', | ||
| * // etc... | ||
| * ] | ||
| * | ||
| * We are looking for ``package.json`` that is anywhere in the tree, except it's | ||
| * in the parent directory, not in the ``node_modules`` directory. For this | ||
| * reason, we strip the ``/node_modules`` suffix off each path and use regular | ||
| * module resolution to obtain a reference to ``package.json``. | ||
| * | ||
| * @param fileName a javascript file name. | ||
| * @returns the NPM module infos (aka ``package.json`` contents), or | ||
| * ``undefined`` if the lookup was unsuccessful. | ||
| */ | ||
| function findNpmPackage(fileName: string): { name: string, version: string, private?: boolean } | undefined { | ||
| const mod = require.cache[fileName]; | ||
| const paths = mod.paths.map(stripNodeModules); | ||
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| try { | ||
| const packagePath = require.resolve('package.json', { paths }); | ||
| return require(packagePath); | ||
| } catch (e) { | ||
| return undefined; | ||
| } | ||
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| /** | ||
| * @param s a path. | ||
| * @returns ``s`` with any terminating ``/node_modules`` | ||
| * (or ``\\node_modules``) stripped off.) | ||
| */ | ||
| function stripNodeModules(s: string): string { | ||
| if (s.endsWith('/node_modules') || s.endsWith('\\node_modules')) { | ||
| // /node_modules is 13 characters | ||
| return s.substr(0, s.length - 13); | ||
| } | ||
| return s; | ||
| } | ||
| } | ||
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| function getJsiiAgentVersion() { | ||
| let jsiiAgent = process.env.JSII_AGENT; | ||
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| // if JSII_AGENT is not specified, we will assume this is a node.js runtime | ||
| // and plug in our node.js version | ||
| if (!jsiiAgent) { | ||
| jsiiAgent = `node.js/${process.version}`; | ||
| } | ||
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| return jsiiAgent; | ||
| } |
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