open-next-cdk
Version:
Deploy a NextJS app using OpenNext packaging to serverless AWS using CDK
179 lines • 27.3 kB
JavaScript
;
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports.makeTokenPlaceholder = exports.TOKEN_PLACEHOLDER_END = exports.TOKEN_PLACEHOLDER_BEGIN = exports.getBuildCmdEnvironment = exports.createArchive = exports.NextjsBuild = void 0;
const JSII_RTTI_SYMBOL_1 = Symbol.for("jsii.rtti");
const path = require("path");
const aws_cdk_lib_1 = require("aws-cdk-lib");
const constructs_1 = require("constructs");
const spawn = require("cross-spawn");
const fs = require("fs-extra");
const NextjsAssetsDeployment_1 = require("./NextjsAssetsDeployment");
const NEXTJS_BUILD_DIR = '.open-next';
const NEXTJS_STATIC_DIR = 'assets';
const NEXTJS_BUILD_MIDDLEWARE_FN_DIR = 'middleware-function';
const NEXTJS_BUILD_IMAGE_FN_DIR = 'image-optimization-function';
const NEXTJS_BUILD_SERVER_FN_DIR = 'server-function';
/**
* Represents a built NextJS application.
* This construct runs `npm build` in standalone output mode inside your `nextjsPath`.
* This construct can be used by higher level constructs or used directly.
*/
class NextjsBuild extends constructs_1.Construct {
constructor(scope, id, props) {
super(scope, id);
this.props = props;
const nextJsPath = props.nextJsPath || props.nextjsPath;
const openNextPath = props.openNextPath;
if (nextJsPath) {
if (openNextPath)
throw new Error(`Cannot supply both nextJsPath and openNextPath`);
if (!fs.existsSync(nextJsPath))
throw new Error(`NextJS application not found at "${nextJsPath}"`);
// build app
if (nextJsPath) {
this.runNpmBuild(nextJsPath);
}
this.openNextPath = path.join(nextJsPath, NEXTJS_BUILD_DIR);
if (!fs.existsSync(this.openNextPath))
throw new Error(`OpenNext package failed to build at "${this.openNextPath}"`);
}
else if (openNextPath) {
this.openNextPath = path.resolve(openNextPath);
if (!fs.existsSync(this.openNextPath))
throw new Error(`OpenNext package not found at "${this.openNextPath}"`);
}
else {
throw new Error(`Must supply either nextJsPath or openNextPath`);
}
// our outputs
this.nextStaticDir = this._getNextStaticDir();
this.nextImageFnDir = this._getOutputDir(NEXTJS_BUILD_IMAGE_FN_DIR);
this.nextServerFnDir = this._getOutputDir(NEXTJS_BUILD_SERVER_FN_DIR);
this.nextMiddlewareFnDir = this._getOutputDir(NEXTJS_BUILD_MIDDLEWARE_FN_DIR, true);
}
runNpmBuild(nextjsPath) {
const { isPlaceholder, quiet } = this.props;
if (isPlaceholder) {
if (!quiet)
console.debug(`Skipping build for placeholder NextjsBuild at ${nextjsPath}`);
return;
}
// validate site path exists
if (!fs.existsSync(nextjsPath)) {
throw new Error(`Invalid nextjsPath ${nextjsPath} - directory does not exist at "${path.resolve(nextjsPath)}"`);
}
// Ensure that the site has a build script defined
if (!fs.existsSync(path.join(nextjsPath, 'package.json'))) {
throw new Error(`No package.json found at "${nextjsPath}".`);
}
const packageJson = fs.readJsonSync(path.join(nextjsPath, 'package.json'));
if (!packageJson.scripts || !packageJson.scripts.build) {
throw new Error(`No "build" script found within package.json in "${nextjsPath}".`);
}
// build environment vars
const buildEnv = {
...process.env,
...getBuildCmdEnvironment(this.props.environment),
...(this.props.nodeEnv ? { NODE_ENV: this.props.nodeEnv } : {}),
};
const buildPath = this.props.buildPath ?? nextjsPath;
const buildCommand = this.props.buildCommand ?? 'npx --yes open-next@1 build';
// run build
console.debug(`├ Running "${buildCommand}" in`, buildPath);
const cmdParts = buildCommand.split(/\s+/);
const buildResult = spawn.sync(cmdParts[0], cmdParts.slice(1), {
cwd: buildPath,
stdio: this.props.quiet ? 'ignore' : 'inherit',
env: buildEnv,
shell: true,
});
if (buildResult.status !== 0) {
throw new Error('The app "build" script failed.');
}
}
readPublicFileList() {
const publicDir = this._getNextStaticDir();
if (!fs.existsSync(publicDir))
return [];
return NextjsAssetsDeployment_1.listDirectory(publicDir).map((file) => path.join('/', path.relative(publicDir, file)));
}
_getNextBuildDir() {
return this.openNextPath;
}
_getOutputDir(subdir, suppressMissing = false) {
const { isPlaceholder } = this.props;
const nextDir = this._getNextBuildDir();
const standaloneDir = path.join(nextDir, subdir);
if (!suppressMissing && !isPlaceholder && !fs.existsSync(standaloneDir)) {
throw new Error(`Could not find ${standaloneDir} directory.`);
}
return standaloneDir;
}
// contains static files
_getNextStaticDir() {
return path.join(this._getNextBuildDir(), NEXTJS_STATIC_DIR);
}
}
exports.NextjsBuild = NextjsBuild;
_a = JSII_RTTI_SYMBOL_1;
NextjsBuild[_a] = { fqn: "open-next-cdk.NextjsBuild", version: "0.0.10" };
// zip up a directory and return path to zip file
function createArchive({ directory, zipFileName, zipOutDir, fileGlob = '.', compressionLevel = 1, quiet, }) {
// if directory is empty, can skip
if (!fs.existsSync(directory) || fs.readdirSync(directory).length === 0)
return null;
zipOutDir = path.resolve(zipOutDir);
fs.mkdirpSync(zipOutDir);
// get output path
const zipFilePath = path.join(zipOutDir, zipFileName);
// delete existing zip file
if (fs.existsSync(zipFilePath)) {
fs.unlinkSync(zipFilePath);
}
// run script to create zipfile, preserving symlinks for node_modules (e.g. pnpm structure)
let result;
const isWindows = process.platform === 'win32';
if (isWindows) {
const psCompressionLevel = compressionLevel === 0 ? 'NoCompression' : 'Fastest';
result = spawn.sync('powershell.exe', [
'-NoLogo',
'-NoProfile',
'-NonInteractive',
'-Command',
`Compress-Archive -Path '${directory}\\*' -DestinationPath '${zipFilePath}' -CompressionLevel ${psCompressionLevel}`,
], { stdio: 'inherit' });
}
else {
result = spawn.sync('bash', // getting ENOENT when specifying 'node' here for some reason
[
quiet ? '-c' : '-xc',
[`cd '${directory}'`, `zip -ryq${compressionLevel} '${zipFilePath}' ${fileGlob}`].join('&&'),
], { stdio: 'inherit' });
}
if (result.status !== 0) {
throw new Error(`There was a problem generating the package for ${zipFileName} with ${directory}: ${result.error}`);
}
// check output
if (!fs.existsSync(zipFilePath)) {
throw new Error(`There was a problem generating the archive for ${directory}; the archive is missing in ${zipFilePath}.`);
}
return zipFilePath;
}
exports.createArchive = createArchive;
function getBuildCmdEnvironment(siteEnvironment) {
// Generate environment placeholders to be replaced
// ie. environment => { API_URL: api.url }
// environment => API_URL="{NEXT{! API_URL !}}"
//
const buildCmdEnvironment = {};
Object.entries(siteEnvironment || {}).forEach(([key, value]) => {
buildCmdEnvironment[key] = aws_cdk_lib_1.Token.isUnresolved(value) ? exports.makeTokenPlaceholder(key) : value;
});
return buildCmdEnvironment;
}
exports.getBuildCmdEnvironment = getBuildCmdEnvironment;
exports.TOKEN_PLACEHOLDER_BEGIN = '{NEXT{! ';
exports.TOKEN_PLACEHOLDER_END = ' !}}';
exports.makeTokenPlaceholder = (value) => exports.TOKEN_PLACEHOLDER_BEGIN + value.toString() + exports.TOKEN_PLACEHOLDER_END;
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* as path from 'path';\nimport { Token } from 'aws-cdk-lib';\nimport { Construct } from 'constructs';\nimport * as spawn from 'cross-spawn';\nimport * as fs from 'fs-extra';\nimport { listDirectory } from './NextjsAssetsDeployment';\nimport { CompressionLevel, NextjsBaseProps } from './NextjsBase';\n\nconst NEXTJS_BUILD_DIR = '.open-next';\nconst NEXTJS_STATIC_DIR = 'assets';\nconst NEXTJS_BUILD_MIDDLEWARE_FN_DIR = 'middleware-function';\nconst NEXTJS_BUILD_IMAGE_FN_DIR = 'image-optimization-function';\nconst NEXTJS_BUILD_SERVER_FN_DIR = 'server-function';\n\nexport interface NextjsBuildProps extends NextjsBaseProps {}\n\n/**\n * Represents a built NextJS application.\n * This construct runs `npm build` in standalone output mode inside your `nextjsPath`.\n * This construct can be used by higher level constructs or used directly.\n */\nexport class NextjsBuild extends Construct {\n  // build output directories\n  /**\n   * Contains code for middleware. Not currently used.\n   */\n  public nextMiddlewareFnDir?: string;\n  /**\n   * Contains server code and dependencies.\n   */\n  public nextServerFnDir: string;\n  /**\n   * Contains function for processessing image requests.\n   * Should be arm64.\n   */\n  public nextImageFnDir: string;\n  /**\n   * Static files containing client-side code.\n   */\n  public nextStaticDir: string;\n\n  public props: NextjsBuildProps;\n\n  readonly openNextPath: string;\n\n  constructor(scope: Construct, id: string, props: NextjsBuildProps) {\n    super(scope, id);\n    this.props = props;\n\n    const nextJsPath = props.nextJsPath || props.nextjsPath;\n    const openNextPath = props.openNextPath;\n\n    if (nextJsPath) {\n      if (openNextPath) throw new Error(`Cannot supply both nextJsPath and openNextPath`);\n      if (!fs.existsSync(nextJsPath)) throw new Error(`NextJS application not found at \"${nextJsPath}\"`);\n\n      // build app\n      if (nextJsPath) {\n        this.runNpmBuild(nextJsPath);\n      }\n\n      this.openNextPath = path.join(nextJsPath, NEXTJS_BUILD_DIR);\n      if (!fs.existsSync(this.openNextPath))\n        throw new Error(`OpenNext package failed to build at \"${this.openNextPath}\"`);\n    } else if (openNextPath) {\n      this.openNextPath = path.resolve(openNextPath);\n      if (!fs.existsSync(this.openNextPath)) throw new Error(`OpenNext package not found at \"${this.openNextPath}\"`);\n    } else {\n      throw new Error(`Must supply either nextJsPath or openNextPath`);\n    }\n\n    // our outputs\n    this.nextStaticDir = this._getNextStaticDir();\n    this.nextImageFnDir = this._getOutputDir(NEXTJS_BUILD_IMAGE_FN_DIR);\n    this.nextServerFnDir = this._getOutputDir(NEXTJS_BUILD_SERVER_FN_DIR);\n    this.nextMiddlewareFnDir = this._getOutputDir(NEXTJS_BUILD_MIDDLEWARE_FN_DIR, true);\n  }\n\n  private runNpmBuild(nextjsPath: string) {\n    const { isPlaceholder, quiet } = this.props;\n\n    if (isPlaceholder) {\n      if (!quiet) console.debug(`Skipping build for placeholder NextjsBuild at ${nextjsPath}`);\n      return;\n    }\n\n    // validate site path exists\n    if (!fs.existsSync(nextjsPath)) {\n      throw new Error(`Invalid nextjsPath ${nextjsPath} - directory does not exist at \"${path.resolve(nextjsPath)}\"`);\n    }\n    // Ensure that the site has a build script defined\n    if (!fs.existsSync(path.join(nextjsPath, 'package.json'))) {\n      throw new Error(`No package.json found at \"${nextjsPath}\".`);\n    }\n    const packageJson = fs.readJsonSync(path.join(nextjsPath, 'package.json'));\n    if (!packageJson.scripts || !packageJson.scripts.build) {\n      throw new Error(`No \"build\" script found within package.json in \"${nextjsPath}\".`);\n    }\n\n    // build environment vars\n    const buildEnv = {\n      ...process.env,\n      ...getBuildCmdEnvironment(this.props.environment),\n      ...(this.props.nodeEnv ? { NODE_ENV: this.props.nodeEnv } : {}),\n    };\n\n    const buildPath = this.props.buildPath ?? nextjsPath;\n    const buildCommand = this.props.buildCommand ?? 'npx --yes open-next@1 build';\n    // run build\n    console.debug(`├ Running \"${buildCommand}\" in`, buildPath);\n    const cmdParts = buildCommand.split(/\\s+/);\n    const buildResult = spawn.sync(cmdParts[0], cmdParts.slice(1), {\n      cwd: buildPath,\n      stdio: this.props.quiet ? 'ignore' : 'inherit',\n      env: buildEnv,\n      shell: true,\n    });\n    if (buildResult.status !== 0) {\n      throw new Error('The app \"build\" script failed.');\n    }\n  }\n\n  readPublicFileList() {\n    const publicDir = this._getNextStaticDir();\n    if (!fs.existsSync(publicDir)) return [];\n    return listDirectory(publicDir).map((file) => path.join('/', path.relative(publicDir, file)));\n  }\n\n  private _getNextBuildDir() {\n    return this.openNextPath;\n  }\n\n  private _getOutputDir(subdir: string, suppressMissing = false) {\n    const { isPlaceholder } = this.props;\n\n    const nextDir = this._getNextBuildDir();\n    const standaloneDir = path.join(nextDir, subdir);\n\n    if (!suppressMissing && !isPlaceholder && !fs.existsSync(standaloneDir)) {\n      throw new Error(`Could not find ${standaloneDir} directory.`);\n    }\n    return standaloneDir;\n  }\n\n  // contains static files\n  private _getNextStaticDir() {\n    return path.join(this._getNextBuildDir(), NEXTJS_STATIC_DIR);\n  }\n}\n\nexport interface CreateArchiveArgs {\n  readonly compressionLevel?: CompressionLevel;\n  readonly directory: string;\n  readonly zipFileName: string;\n  readonly zipOutDir: string;\n  readonly fileGlob?: string;\n  readonly quiet?: boolean;\n}\n\n// zip up a directory and return path to zip file\nexport function createArchive({\n  directory,\n  zipFileName,\n  zipOutDir,\n  fileGlob = '.',\n  compressionLevel = 1,\n  quiet,\n}: CreateArchiveArgs): string | null {\n  // if directory is empty, can skip\n  if (!fs.existsSync(directory) || fs.readdirSync(directory).length === 0) return null;\n\n  zipOutDir = path.resolve(zipOutDir);\n  fs.mkdirpSync(zipOutDir);\n  // get output path\n  const zipFilePath = path.join(zipOutDir, zipFileName);\n\n  // delete existing zip file\n  if (fs.existsSync(zipFilePath)) {\n    fs.unlinkSync(zipFilePath);\n  }\n\n  // run script to create zipfile, preserving symlinks for node_modules (e.g. pnpm structure)\n  let result;\n  const isWindows = process.platform === 'win32';\n  if (isWindows) {\n    const psCompressionLevel = compressionLevel === 0 ? 'NoCompression' : 'Fastest';\n    result = spawn.sync(\n      'powershell.exe',\n      [\n        '-NoLogo',\n        '-NoProfile',\n        '-NonInteractive',\n        '-Command',\n        `Compress-Archive -Path '${directory}\\\\*' -DestinationPath '${zipFilePath}' -CompressionLevel ${psCompressionLevel}`,\n      ],\n      { stdio: 'inherit' }\n    );\n  } else {\n    result = spawn.sync(\n      'bash', // getting ENOENT when specifying 'node' here for some reason\n      [\n        quiet ? '-c' : '-xc',\n        [`cd '${directory}'`, `zip -ryq${compressionLevel} '${zipFilePath}' ${fileGlob}`].join('&&'),\n      ],\n      { stdio: 'inherit' }\n    );\n  }\n  if (result.status !== 0) {\n    throw new Error(`There was a problem generating the package for ${zipFileName} with ${directory}: ${result.error}`);\n  }\n  // check output\n  if (!fs.existsSync(zipFilePath)) {\n    throw new Error(\n      `There was a problem generating the archive for ${directory}; the archive is missing in ${zipFilePath}.`\n    );\n  }\n\n  return zipFilePath;\n}\n\nexport function getBuildCmdEnvironment(siteEnvironment?: { [key: string]: string }): Record<string, string> {\n  // Generate environment placeholders to be replaced\n  // ie. environment => { API_URL: api.url }\n  //     environment => API_URL=\"{NEXT{! API_URL !}}\"\n  //\n  const buildCmdEnvironment: Record<string, string> = {};\n  Object.entries(siteEnvironment || {}).forEach(([key, value]) => {\n    buildCmdEnvironment[key] = Token.isUnresolved(value) ? makeTokenPlaceholder(key) : value;\n  });\n\n  return buildCmdEnvironment;\n}\n\nexport const TOKEN_PLACEHOLDER_BEGIN = '{NEXT{! ';\nexport const TOKEN_PLACEHOLDER_END = ' !}}';\nexport const makeTokenPlaceholder = (value: string): string =>\n  TOKEN_PLACEHOLDER_BEGIN + value.toString() + TOKEN_PLACEHOLDER_END;\n"]}