def install_package(name):
available = get_available_packages()
if name not in available:
return InstallationStatuses.FORMULA_NOT_FOUND
packages = [package.name for package in Package.select().where(Package.name == name)]
if len(packages) > 1:
return InstallationStatuses.INSTALL_ERROR
elif packages and packages[0] == name:
return InstallationStatuses.ALREADY_INSTALLED
package = available.get(name)
formula = import_formula_module(package.get('formula_name'))
if not formula:
return InstallationStatuses.BAD_FORMULA
status = formula.install()
if status != InstallationStatuses.INSTALL_OK:
return status
Package.create(
name=formula.name,
formula_name=package.get('formula_name'),
version=formula.version
)
return status
