def from_project_root(cls, project_root, cli_vars):
"""Create a project from a root directory. Reads in dbt_project.yml and
packages.yml, if it exists.
:param project_root str: The path to the project root to load.
:raises DbtProjectError: If the project is missing or invalid, or if
the packages file exists and is invalid.
:returns Project: The project, with defaults populated.
"""
project_root = os.path.normpath(project_root)
project_yaml_filepath = os.path.join(project_root, 'dbt_project.yml')
# get the project.yml contents
if not path_exists(project_yaml_filepath):
raise DbtProjectError(
'no dbt_project.yml found at expected path {}'
.format(project_yaml_filepath)
)
if isinstance(cli_vars, compat.basestring):
cli_vars = parse_cli_vars(cli_vars)
renderer = ConfigRenderer(cli_vars)
project_dict = _load_yaml(project_yaml_filepath)
rendered_project = renderer.render_project(project_dict)
rendered_project['project-root'] = project_root
packages_dict = package_data_from_root(project_root)
return cls.from_project_config(rendered_project, packages_dict)
def from_project_root(cls, project_root, cli_vars):
"""Create a project from a root directory. Reads in dbt_project.yml and
packages.yml, if it exists.
:param project_root str: The path to the project root to load.
:raises DbtProjectError: If the project is missing or invalid, or if
the packages file exists and is invalid.
:returns Project: The project, with defaults populated.
"""
project_root = os.path.normpath(project_root)
project_yaml_filepath = os.path.join(project_root, 'dbt_project.yml')
# get the project.yml contents
if not path_exists(project_yaml_filepath):
raise DbtProjectError(
'no dbt_project.yml found at expected path {}'.format(
project_yaml_filepath))
if isinstance(cli_vars, compat.basestring):
cli_vars = parse_cli_vars(cli_vars)
renderer = ConfigRenderer(cli_vars)
project_dict = _load_yaml(project_yaml_filepath)
rendered_project = renderer.render_project(project_dict)
rendered_project['project-root'] = project_root
packages_dict = package_data_from_root(project_root)
return cls.from_project_config(rendered_project, packages_dict)
def package_data_from_root(project_root):
package_filepath = resolve_path_from_base('packages.yml', project_root)
if path_exists(package_filepath):
packages_dict = _load_yaml(package_filepath)
else:
packages_dict = None
return packages_dict
def selector_data_from_root(project_root: str) -> Dict[str, Any]:
selector_filepath = resolve_path_from_base('selectors.yml', project_root)
if path_exists(selector_filepath):
selectors_dict = load_yaml_text(load_file_contents(selector_filepath))
else:
selectors_dict = None
return selectors_dict
def package_data_from_root(project_root):
package_filepath = resolve_path_from_base(
'packages.yml', project_root
)
if path_exists(package_filepath):
packages_dict = _load_yaml(package_filepath)
else:
packages_dict = None
return packages_dict
def _raw_project_from(project_root: str) -> Dict[str, Any]:
project_root = os.path.normpath(project_root)
project_yaml_filepath = os.path.join(project_root, 'dbt_project.yml')
# get the project.yml contents
if not path_exists(project_yaml_filepath):
raise DbtProjectError(
'no dbt_project.yml found at expected path {}'.format(
project_yaml_filepath))
project_dict = _load_yaml(project_yaml_filepath)
if not isinstance(project_dict, dict):
raise DbtProjectError('dbt_project.yml does not parse to a dictionary')
return project_dict
def install(self, project):
src_path = self.resolve_path(project)
dest_path = self.get_installation_path(project)
can_create_symlink = system.supports_symlinks()
if system.path_exists(dest_path):
if not system.path_is_symlink(dest_path):
system.rmdir(dest_path)
else:
system.remove_file(dest_path)
if can_create_symlink:
logger.debug(' Creating symlink to local dependency.')
system.make_symlink(src_path, dest_path)
else:
logger.debug(' Symlinks are not available on this '
'OS, copying dependency.')
shutil.copytree(src_path, dest_path)
