Exceptions - API for Error Handling

This module contains some Enums used in Error Handling which are useful in testing external plugins.

class ErrorDomain(value)

Bases: enum.Enum

Describes what the error is related to.

PLUGIN = 1
LOAD = 2
IMPL = 3
PLATFORM = 4
SANDBOX = 5
ARTIFACT = 6
PIPELINE = 7
UTIL = 8
SOURCE = 9
ELEMENT = 10
APP = 11
STREAM = 12
VIRTUAL_FS = 13
CAS = 14
PROG_NOT_FOUND = 15
REMOTE = 16
PROFILE = 17
class LoadErrorReason(value)

Bases: enum.Enum

Describes the reason why a LoadError was raised.

MISSING_FILE = 1

A file was not found.

INVALID_YAML = 2

The parsed data was not valid YAML.

INVALID_DATA = 3

Data was malformed, a value was not of the expected type, etc

ILLEGAL_COMPOSITE = 4

An error occurred during YAML dictionary composition.

This can happen by overriding a value with a new differently typed value, or by overwriting some named value when that was not allowed.

CIRCULAR_DEPENDENCY = 5

A circular dependency chain was detected

UNRESOLVED_VARIABLE = 6

A variable could not be resolved. This can happen if your project has cyclic dependencies in variable declarations, or, when substituting a string which refers to an undefined variable.

UNSUPPORTED_PROJECT = 7

The project requires an incompatible BuildStream version

UNSUPPORTED_PLUGIN = 8

Project requires a newer version of a plugin than the one which was loaded

EXPRESSION_FAILED = 9

A conditional expression failed to resolve

USER_ASSERTION = 10

An assertion was intentionally encoded into project YAML

TRAILING_LIST_DIRECTIVE = 11

A list composition directive did not apply to any underlying list

CONFLICTING_JUNCTION = 12

Conflicting junctions in subprojects

INVALID_JUNCTION = 13

Failure to load a project from a specified junction

SUBPROJECT_INCONSISTENT = 15

Subproject has no ref

INVALID_SYMBOL_NAME = 16

An invalid symbol name was encountered

MISSING_PROJECT_CONF = 17

A project.conf file was missing

LOADING_DIRECTORY = 18

Try to load a directory not a yaml file

PROJ_PATH_INVALID = 19

A project path leads outside of the project directory

PROJ_PATH_INVALID_KIND = 20

A project path points to a file of the not right kind (e.g. a socket)

RECURSIVE_INCLUDE = 21

A recursive include has been encountered

CIRCULAR_REFERENCE_VARIABLE = 22

A circular variable reference was detected

PROTECTED_VARIABLE_REDEFINED = 23

An attempt was made to set the value of a protected variable

DUPLICATE_DEPENDENCY = 24

A duplicate dependency was detected

A link element declared dependencies

CIRCULAR_REFERENCE = 26

A circular element reference was detected