in packages/secure-static-site/lib/buildStaticSite.ts [24:34]
export function buildStaticSite(props: BuildStaticSiteProps): void {
const { buildCommand, envVars, path } = props;
let cmd;
if (envVars) {
const envVarsString = recordToEnvVars(envVars);
cmd = `${envVarsString} ${buildCommand}`;
} else {
cmd = buildCommand;
}
execSync(cmd, { cwd: path, stdio: "inherit" });
}