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Description
Description
In some cases the license_expression_spdx of a license_detection is null even though the reference_match has a non-null expression.
Example:
- from the scan of https://gitlab.com/libeigen/eigen/-/blob/3.4/Eigen/src/OrderingMethods/Amd.h?ref_type=heads
- also shows a second license detection with the same license that does not have the problem.
"license_detections": [
{
"identifier": "mpl_2_0-31c7f2f0-eb53-75b7-e843-a9ef4eb4ddf4",
"license_expression": "mpl-2.0",
"license_expression_spdx": null,
"detection_count": 1,
"reference_matches": [
{
"license_expression": "mpl-2.0",
"license_expression_spdx": "MPL-2.0",
"from_file": "Amd.h",
"start_line": 17,
"end_line": 18,
"matcher": "3-seq",
"score": 50.0,
"matched_length": 8,
"match_coverage": 50.0,
"rule_relevance": 100,
"rule_identifier": "mpl-2.0_97.RULE",
"rule_url": "https://github.com/nexB/scancode-toolkit/tree/develop/src/licensedcode/data/rules/mpl-2.0_97.RULE"
}
]
},
{
"identifier": "mpl_2_0-d0113b18-ff50-a2fd-17f7-9227082156a7",
"license_expression": "mpl-2.0",
"license_expression_spdx": "MPL-2.0",
"detection_count": 1,
"reference_matches": [
{
"license_expression": "mpl-2.0",
"license_expression_spdx": "MPL-2.0",
"from_file": "Amd.h",
"start_line": 6,
"end_line": 8,
"matcher": "2-aho",
"score": 100.0,
"matched_length": 39,
"match_coverage": 100.0,
"rule_relevance": 100,
"rule_identifier": "mpl-2.0_3.RULE",
"rule_url": "https://github.com/nexB/scancode-toolkit/tree/develop/src/licensedcode/data/rules/mpl-2.0_3.RULE"
}
]
}
],
I would have expected both license detections to have a a non-null spdx license expression.
How To Reproduce
Download https://gitlab.com/libeigen/eigen/-/blob/3.4/Eigen/src/OrderingMethods/Amd.h?ref_type=heads
Run
scancode -l /Amd.h --json scancode_null_expression.json
on master or with v32.3.0.
System configuration
For bug reports, it really helps us to know:
- What OS are you running on? Mac
- What version of scancode-toolkit was used to generate the scan file? 32.3.0
- What installation method was used to install/run scancode? pip