Return a primary license expression string from `declared_license_expressions` or an empty string if a primary license expression cannot be determined. We determine if a list of `declared_license_expressions` has a primary license if we can resolve the `declared_license_express
(declared_license_expressions)
| 459 | |
| 460 | |
| 461 | def get_primary_license(declared_license_expressions): |
| 462 | """ |
| 463 | Return a primary license expression string from |
| 464 | `declared_license_expressions` or an empty string if a primary license |
| 465 | expression cannot be determined. |
| 466 | |
| 467 | We determine if a list of `declared_license_expressions` has a primary |
| 468 | license if we can resolve the `declared_license_expressions` into one |
| 469 | expression. |
| 470 | """ |
| 471 | unique_declared_license_expressions = unique(declared_license_expressions) |
| 472 | # If we only have a single unique license expression, then we do not have |
| 473 | # any ambiguity about the licensing |
| 474 | if len(unique_declared_license_expressions) == 1: |
| 475 | return unique_declared_license_expressions[0] |
| 476 | |
| 477 | unique_joined_expressions, single_expressions = group_license_expressions( |
| 478 | unique_declared_license_expressions |
| 479 | ) |
| 480 | |
| 481 | if not unique_joined_expressions: |
| 482 | # If we do not have any joined expressions, but multiple single |
| 483 | # expressions remaining, then we have license ambiguity |
| 484 | if len(single_expressions) == 1: |
| 485 | return single_expressions[0] |
| 486 | else: |
| 487 | return None |
| 488 | |
| 489 | # Group single expressions to joined expressions to see if single |
| 490 | # expressions are accounted for in a joined expression |
| 491 | single_expressions_by_joined_expressions = { |
| 492 | joined_expression: [] for joined_expression in unique_joined_expressions |
| 493 | } |
| 494 | not_in_joined_expressions = [] |
| 495 | # Check to see if the single expression is in the joined expression |
| 496 | for joined_expression in unique_joined_expressions: |
| 497 | for expression in single_expressions: |
| 498 | if expression not in joined_expression: |
| 499 | not_in_joined_expressions.append(expression) |
| 500 | else: |
| 501 | single_expressions_by_joined_expressions[joined_expression].append(expression) |
| 502 | |
| 503 | # If we have a single joined license expression and no license expressions |
| 504 | # that have not been associated with a joined license expression, then we do |
| 505 | # not have any ambiguity about the license |
| 506 | if len(single_expressions_by_joined_expressions) == 1 and not not_in_joined_expressions: |
| 507 | return next(iter(single_expressions_by_joined_expressions)) |
| 508 | else: |
| 509 | return None |
no test coverage detected