Function setEnvironmentVariable

packages/cli/src/utils/env.ts:53–91

(
  dir: string,
  fileName: string,
  variableName: string,
  value: string,
  replaceValue: boolean = true,
  renderer: (value: string) => string = (value) => value
)

}

async function setEnvironmentVariable(
  dir: string,
  fileName: string,
  variableName: string,
  value: string,
  replaceValue: boolean = true,
  renderer: (value: string) => string = (value) => value
) {
  const path = pathModule.join(dir, fileName);
  const envFileExists = await pathExists(path);

  if (!envFileExists) {
    await fs.writeFile(path, "");
  }

  const envFileContent = await fs.readFile(path, "utf-8");

  if (envFileContent.includes(variableName)) {
    if (!replaceValue) {
      logger.info(
        `☑ Skipping setting ${variableName}=${renderer(value)} because it already exists`
      );
      return;
    }
    // Update the existing value
    const updatedEnvFileContent = envFileContent.replace(
      new RegExp(`${variableName}=.*\\n`, "g"),
      `${variableName}=${value}\n`
    );

    await fs.writeFile(path, updatedEnvFileContent);

    logger.success(`✔ Set ${variableName}=${renderer(value)} in ${fileName}`);
  } else {
    await fs.appendFile(path, `\n${variableName}=${value}`);

    logger.success(`✔ Added ${variableName}=${renderer(value)} to ${fileName}`);
  }
}