Function maybeLoadRequirementsTxt

packages/python-analysis/src/manifest/package.ts:640–686

(
  root: AbsPath,
  subdir: RelPath,
  fileName: string
)

}

async function maybeLoadRequirementsTxt(
  root: AbsPath,
  subdir: RelPath,
  fileName: string
): Promise<PythonManifest | null> {
  const requirementsTxtRelPath = path.join(subdir, fileName);
  const requirementsTxtPath = path.join(root, requirementsTxtRelPath);
  const requirementsContent: string | null =
    await readFileTextIfExists(requirementsTxtPath);

  if (requirementsContent == null) {
    return null;
  }

  try {
    const pyproject = await convertRequirementsToPyprojectToml(
      requirementsContent,
      {
        workingDir: path.join(root, subdir),
        packageRoot: root,
      }
    );

    return {
      path: requirementsTxtRelPath,
      data: pyproject,
      origin: {
        kind: PythonManifestConvertedKind.RequirementsTxt,
        path: requirementsTxtRelPath,
      },
    };
  } catch (error: unknown) {
    if (error instanceof PythonAnalysisError) {
      error.path = requirementsTxtRelPath;
      if (!error.fileContent) {
        error.fileContent = requirementsContent;
      }
      throw error;
    }
    throw new PythonAnalysisError({
      message: `could not parse ${fileName}: ${error instanceof Error ? error.message : String(error)}`,
      code: 'PYTHON_REQUIREMENTS_PARSE_ERROR',
      path: requirementsTxtRelPath,
      fileContent: requirementsContent,
    });
  }
}

async function loadPythonConfigs(
  root: AbsPath,