import { execSync } from 'child_process';
/**
* Gets the default AWS region from environment variables or AWS CLI configuration
* @returns The AWS region string
*/
export function getDefaultAwsRegion(): string {
// First check environment variables (AWS SDKs check these first)
const envRegion = process.env.AWS_REGION || process.env.AWS_DEFAULT_REGION;
if (envRegion) {
return envRegion;
}
// If environment variables aren't set, try to get from AWS CLI config
try {
// Use the working AWS CLI binary path to avoid "cannot execute binary file" errors
const cliRegion = execSync(
'/usr/local/aws-cli/aws configure get region',
{
encoding: 'utf8',
},
).trim();
if (cliRegion) {
return cliRegion;
}
} catch {
// Silently continue to fallback - this is expected in many environments
// where AWS CLI isn't configured or the binary path is different
}
// Fallback to a default region
return 'ap-southeast-1';
}
