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import {homedir} from 'os';
import {join} from 'path';
import {cosmiconfigSync} from 'cosmiconfig';
import {Configuration, Product} from 'puppeteer-core';
/**
* @internal
*/
function isSupportedProduct(product: unknown): product is Product {
switch (product) {
case 'chrome':
case 'firefox':
return true;
default:
return false;
}
}
/**
* @internal
*/
export const getConfiguration = (): Configuration => {
const result = cosmiconfigSync('puppeteer').search();
const configuration: Configuration = result ? result.config : {};
// Merging environment variables.
configuration.defaultProduct = (process.env['PUPPETEER_PRODUCT'] ??
process.env['npm_config_puppeteer_product'] ??
process.env['npm_package_config_puppeteer_product'] ??
configuration.defaultProduct ??
'chrome') as Product;
configuration.executablePath =
process.env['PUPPETEER_EXECUTABLE_PATH'] ??
process.env['npm_config_puppeteer_executable_path'] ??
process.env['npm_package_config_puppeteer_executable_path'] ??
configuration.executablePath;
// Default to skipDownload if executablePath is set
if (configuration.executablePath) {
configuration.skipDownload = true;
}
// Set skipDownload explicitly or from default
configuration.skipDownload = Boolean(
process.env['PUPPETEER_SKIP_DOWNLOAD'] ??
process.env['npm_config_puppeteer_skip_download'] ??
process.env['npm_package_config_puppeteer_skip_download'] ??
configuration.skipDownload
);
// Prepare variables used in browser downloading
if (!configuration.skipDownload) {
configuration.browserRevision =
process.env['PUPPETEER_BROWSER_REVISION'] ??
process.env['npm_config_puppeteer_browser_revision'] ??
process.env['npm_package_config_puppeteer_browser_revision'] ??
configuration.browserRevision;
configuration.downloadHost =
process.env['PUPPETEER_DOWNLOAD_HOST'] ??
process.env['npm_config_puppeteer_download_host'] ??
process.env['npm_package_config_puppeteer_download_host'] ??
configuration.downloadHost;
configuration.downloadPath =
process.env['PUPPETEER_DOWNLOAD_PATH'] ??
process.env['npm_config_puppeteer_download_path'] ??
process.env['npm_package_config_puppeteer_download_path'] ??
configuration.downloadPath;
}
configuration.cacheDirectory =
process.env['PUPPETEER_CACHE_DIR'] ??
process.env['npm_config_puppeteer_cache_dir'] ??
process.env['npm_package_config_puppeteer_cache_dir'] ??
configuration.cacheDirectory ??
join(homedir(), '.cache', 'puppeteer');
configuration.temporaryDirectory =
process.env['PUPPETEER_TMP_DIR'] ??
process.env['npm_config_puppeteer_tmp_dir'] ??
process.env['npm_package_config_puppeteer_tmp_dir'] ??
configuration.temporaryDirectory;
configuration.experiments ??= {};
configuration.logLevel = (process.env['PUPPETEER_LOGLEVEL'] ??
process.env['npm_config_LOGLEVEL'] ??
process.env['npm_package_config_LOGLEVEL'] ??
configuration.logLevel) as 'silent' | 'error' | 'warn';
// Validate configuration.
if (!isSupportedProduct(configuration.defaultProduct)) {
throw new Error(`Unsupported product ${configuration.defaultProduct}`);
}
return configuration;
};
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