aws-cdk
Version:
AWS CDK CLI, the command line tool for CDK apps
157 lines • 23.9 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.execProgram = execProgram;
exports.createAssembly = createAssembly;
const childProcess = require("child_process");
const os = require("os");
const path = require("path");
const util_1 = require("util");
const cxschema = require("@aws-cdk/cloud-assembly-schema");
const cxapi = require("@aws-cdk/cx-api");
const fs = require("fs-extra");
const semver = require("semver");
const api_1 = require("../api");
const api_private_1 = require("../api-private");
const user_configuration_1 = require("../cli/user-configuration");
const version_1 = require("../cli/version");
const util_2 = require("../util");
/** Invokes the cloud executable and returns JSON output */
async function execProgram(aws, ioHelper, config) {
const debugFn = (msg) => ioHelper.notify(api_private_1.IO.DEFAULT_ASSEMBLY_DEBUG.msg(msg));
const env = await (0, api_1.prepareDefaultEnvironment)(aws, debugFn);
const context = await (0, api_1.prepareContext)(config.settings, config.context.all, env, debugFn);
const build = config.settings.get(['build']);
if (build) {
await exec(build);
}
const app = config.settings.get(['app']);
if (!app) {
throw new api_1.ToolkitError(`--app is required either in command-line, in ${user_configuration_1.PROJECT_CONFIG} or in ${user_configuration_1.USER_DEFAULTS}`);
}
// bypass "synth" if app points to a cloud assembly
if (await fs.pathExists(app) && (await fs.stat(app)).isDirectory()) {
await debugFn('--app points to a cloud assembly, so we bypass synth');
// Acquire a read lock on this directory
const lock = await new api_1.RWLock(app).acquireRead();
return { assembly: createAssembly(app), lock };
}
const commandLine = await (0, api_1.guessExecutable)(app, debugFn);
const outdir = config.settings.get(['output']);
if (!outdir) {
throw new api_1.ToolkitError('unexpected: --output is required');
}
if (typeof outdir !== 'string') {
throw new api_1.ToolkitError(`--output takes a string, got ${JSON.stringify(outdir)}`);
}
try {
await fs.mkdirp(outdir);
}
catch (error) {
throw new api_1.ToolkitError(`Could not create output directory ${outdir} (${error.message})`);
}
await debugFn(`outdir: ${outdir}`);
env[cxapi.OUTDIR_ENV] = outdir;
// Acquire a lock on the output directory
const writerLock = await new api_1.RWLock(outdir).acquireWrite();
try {
// Send version information
env[cxapi.CLI_ASM_VERSION_ENV] = cxschema.Manifest.version();
env[cxapi.CLI_VERSION_ENV] = (0, version_1.versionNumber)();
await debugFn((0, util_1.format)('env:', env));
const envVariableSizeLimit = os.platform() === 'win32' ? 32760 : 131072;
const [smallContext, overflow] = (0, util_2.splitBySize)(context, (0, api_1.spaceAvailableForContext)(env, envVariableSizeLimit));
// Store the safe part in the environment variable
env[cxapi.CONTEXT_ENV] = JSON.stringify(smallContext);
// If there was any overflow, write it to a temporary file
let contextOverflowLocation;
if (Object.keys(overflow ?? {}).length > 0) {
const contextDir = await fs.mkdtemp(path.join(os.tmpdir(), 'cdk-context'));
contextOverflowLocation = path.join(contextDir, 'context-overflow.json');
fs.writeJSONSync(contextOverflowLocation, overflow);
env[cxapi.CONTEXT_OVERFLOW_LOCATION_ENV] = contextOverflowLocation;
}
await exec(commandLine.join(' '));
const assembly = createAssembly(outdir);
await contextOverflowCleanup(contextOverflowLocation, assembly, ioHelper);
return { assembly, lock: await writerLock.convertToReaderLock() };
}
catch (e) {
await writerLock.release();
throw e;
}
async function exec(commandAndArgs) {
try {
await new Promise((ok, fail) => {
// We use a slightly lower-level interface to:
//
// - Pass arguments in an array instead of a string, to get around a
// number of quoting issues introduced by the intermediate shell layer
// (which would be different between Linux and Windows).
//
// - Inherit stderr from controlling terminal. We don't use the captured value
// anyway, and if the subprocess is printing to it for debugging purposes the
// user gets to see it sooner. Plus, capturing doesn't interact nicely with some
// processes like Maven.
const proc = childProcess.spawn(commandAndArgs, {
stdio: ['ignore', 'inherit', 'inherit'],
detached: false,
shell: true,
env: {
...process.env,
...env,
},
});
proc.on('error', fail);
proc.on('exit', code => {
if (code === 0) {
return ok();
}
else {
return fail(new api_1.ToolkitError(`Subprocess exited with error ${code}`));
}
});
});
}
catch (e) {
await debugFn(`failed command: ${commandAndArgs}`);
throw e;
}
}
}
/**
* Creates an assembly with error handling
*/
function createAssembly(appDir) {
try {
return new cxapi.CloudAssembly(appDir, {
// We sort as we deploy
topoSort: false,
});
}
catch (error) {
if (error.message.includes(cxschema.VERSION_MISMATCH)) {
// this means the CLI version is too old.
// we instruct the user to upgrade.
throw new api_1.ToolkitError(`This CDK CLI is not compatible with the CDK library used by your application. Please upgrade the CLI to the latest version.\n(${error.message})`);
}
throw error;
}
}
async function contextOverflowCleanup(location, assembly, ioHelper) {
if (location) {
fs.removeSync(path.dirname(location));
const tree = await (0, api_1.loadTree)(assembly, (msg) => ioHelper.notify(api_private_1.IO.DEFAULT_ASSEMBLY_TRACE.msg(msg)));
const frameworkDoesNotSupportContextOverflow = (0, api_1.some)(tree, node => {
const fqn = node.constructInfo?.fqn;
const version = node.constructInfo?.version;
return (fqn === 'aws-cdk-lib.App' && version != null && semver.lte(version, '2.38.0'))
|| fqn === '@aws-cdk/core.App'; // v1
});
// We're dealing with an old version of the framework here. It is unaware of the temporary
// file, which means that it will ignore the context overflow.
if (frameworkDoesNotSupportContextOverflow) {
await ioHelper.notify(api_private_1.IO.DEFAULT_ASSEMBLY_WARN.msg('Part of the context could not be sent to the application. Please update the AWS CDK library to the latest version.'));
}
}
}
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* as childProcess from 'child_process';\nimport * as os from 'os';\nimport * as path from 'path';\nimport { format } from 'util';\nimport * as cxschema from '@aws-cdk/cloud-assembly-schema';\nimport * as cxapi from '@aws-cdk/cx-api';\nimport * as fs from 'fs-extra';\nimport * as semver from 'semver';\nimport type { SdkProvider, IReadLock } from '../api';\nimport { RWLock, ToolkitError, guessExecutable, loadTree, prepareContext, prepareDefaultEnvironment, some, spaceAvailableForContext } from '../api';\nimport { IO, type IoHelper } from '../api-private';\nimport type { Configuration } from '../cli/user-configuration';\nimport { PROJECT_CONFIG, USER_DEFAULTS } from '../cli/user-configuration';\nimport { versionNumber } from '../cli/version';\nimport { splitBySize } from '../util';\n\nexport interface ExecProgramResult {\n  readonly assembly: cxapi.CloudAssembly;\n  readonly lock: IReadLock;\n}\n\n/** Invokes the cloud executable and returns JSON output */\nexport async function execProgram(aws: SdkProvider, ioHelper: IoHelper, config: Configuration): Promise<ExecProgramResult> {\n  const debugFn = (msg: string) => ioHelper.notify(IO.DEFAULT_ASSEMBLY_DEBUG.msg(msg));\n  const env = await prepareDefaultEnvironment(aws, debugFn);\n  const context = await prepareContext(config.settings, config.context.all, env, debugFn);\n\n  const build = config.settings.get(['build']);\n  if (build) {\n    await exec(build);\n  }\n\n  const app = config.settings.get(['app']);\n  if (!app) {\n    throw new ToolkitError(`--app is required either in command-line, in ${PROJECT_CONFIG} or in ${USER_DEFAULTS}`);\n  }\n\n  // bypass \"synth\" if app points to a cloud assembly\n  if (await fs.pathExists(app) && (await fs.stat(app)).isDirectory()) {\n    await debugFn('--app points to a cloud assembly, so we bypass synth');\n\n    // Acquire a read lock on this directory\n    const lock = await new RWLock(app).acquireRead();\n\n    return { assembly: createAssembly(app), lock };\n  }\n\n  const commandLine = await guessExecutable(app, debugFn);\n\n  const outdir = config.settings.get(['output']);\n  if (!outdir) {\n    throw new ToolkitError('unexpected: --output is required');\n  }\n  if (typeof outdir !== 'string') {\n    throw new ToolkitError(`--output takes a string, got ${JSON.stringify(outdir)}`);\n  }\n  try {\n    await fs.mkdirp(outdir);\n  } catch (error: any) {\n    throw new ToolkitError(`Could not create output directory ${outdir} (${error.message})`);\n  }\n\n  await debugFn(`outdir: ${outdir}`);\n  env[cxapi.OUTDIR_ENV] = outdir;\n\n  // Acquire a lock on the output directory\n  const writerLock = await new RWLock(outdir).acquireWrite();\n\n  try {\n    // Send version information\n    env[cxapi.CLI_ASM_VERSION_ENV] = cxschema.Manifest.version();\n    env[cxapi.CLI_VERSION_ENV] = versionNumber();\n\n    await debugFn(format('env:', env));\n\n    const envVariableSizeLimit = os.platform() === 'win32' ? 32760 : 131072;\n    const [smallContext, overflow] = splitBySize(context, spaceAvailableForContext(env, envVariableSizeLimit));\n\n    // Store the safe part in the environment variable\n    env[cxapi.CONTEXT_ENV] = JSON.stringify(smallContext);\n\n    // If there was any overflow, write it to a temporary file\n    let contextOverflowLocation;\n    if (Object.keys(overflow ?? {}).length > 0) {\n      const contextDir = await fs.mkdtemp(path.join(os.tmpdir(), 'cdk-context'));\n      contextOverflowLocation = path.join(contextDir, 'context-overflow.json');\n      fs.writeJSONSync(contextOverflowLocation, overflow);\n      env[cxapi.CONTEXT_OVERFLOW_LOCATION_ENV] = contextOverflowLocation;\n    }\n\n    await exec(commandLine.join(' '));\n\n    const assembly = createAssembly(outdir);\n\n    await contextOverflowCleanup(contextOverflowLocation, assembly, ioHelper);\n\n    return { assembly, lock: await writerLock.convertToReaderLock() };\n  } catch (e) {\n    await writerLock.release();\n    throw e;\n  }\n\n  async function exec(commandAndArgs: string) {\n    try {\n      await new Promise<void>((ok, fail) => {\n        // We use a slightly lower-level interface to:\n        //\n        // - Pass arguments in an array instead of a string, to get around a\n        //   number of quoting issues introduced by the intermediate shell layer\n        //   (which would be different between Linux and Windows).\n        //\n        // - Inherit stderr from controlling terminal. We don't use the captured value\n        //   anyway, and if the subprocess is printing to it for debugging purposes the\n        //   user gets to see it sooner. Plus, capturing doesn't interact nicely with some\n        //   processes like Maven.\n        const proc = childProcess.spawn(commandAndArgs, {\n          stdio: ['ignore', 'inherit', 'inherit'],\n          detached: false,\n          shell: true,\n          env: {\n            ...process.env,\n            ...env,\n          },\n        });\n\n        proc.on('error', fail);\n\n        proc.on('exit', code => {\n          if (code === 0) {\n            return ok();\n          } else {\n            return fail(new ToolkitError(`Subprocess exited with error ${code}`));\n          }\n        });\n      });\n    } catch (e: any) {\n      await debugFn(`failed command: ${commandAndArgs}`);\n      throw e;\n    }\n  }\n}\n\n/**\n * Creates an assembly with error handling\n */\nexport function createAssembly(appDir: string) {\n  try {\n    return new cxapi.CloudAssembly(appDir, {\n      // We sort as we deploy\n      topoSort: false,\n    });\n  } catch (error: any) {\n    if (error.message.includes(cxschema.VERSION_MISMATCH)) {\n      // this means the CLI version is too old.\n      // we instruct the user to upgrade.\n      throw new ToolkitError(`This CDK CLI is not compatible with the CDK library used by your application. Please upgrade the CLI to the latest version.\\n(${error.message})`);\n    }\n    throw error;\n  }\n}\n\nasync function contextOverflowCleanup(\n  location: string | undefined,\n  assembly: cxapi.CloudAssembly,\n  ioHelper: IoHelper,\n) {\n  if (location) {\n    fs.removeSync(path.dirname(location));\n\n    const tree = await loadTree(assembly, (msg: string) => ioHelper.notify(IO.DEFAULT_ASSEMBLY_TRACE.msg(msg)));\n    const frameworkDoesNotSupportContextOverflow = some(tree, node => {\n      const fqn = node.constructInfo?.fqn;\n      const version = node.constructInfo?.version;\n      return (fqn === 'aws-cdk-lib.App' && version != null && semver.lte(version, '2.38.0'))\n        || fqn === '@aws-cdk/core.App'; // v1\n    });\n\n    // We're dealing with an old version of the framework here. It is unaware of the temporary\n    // file, which means that it will ignore the context overflow.\n    if (frameworkDoesNotSupportContextOverflow) {\n      await ioHelper.notify(IO.DEFAULT_ASSEMBLY_WARN.msg('Part of the context could not be sent to the application. Please update the AWS CDK library to the latest version.'));\n    }\n  }\n}\n"]}