2.6 KiB
Open Source Software Compliance
Overview
The package contains tools & processes to:
- generate our open source Bill Of Materials
- validate the open source licenses are in line with the permitted ones
- [todo] validate the open source libraries are part of a
The tools ingest license information generated by language specific tools (e.g. mvn & scala) to produce a consistent report covering on all the open source libraries used.
Details about language specifics tools used as inputs:
JDK
To retrieve JDK dependencies we are using the license maven plugin:
mvn license:aggregate-download-licenses
generating an xml file containing all the relevant licenses extracted from the maven poms.
Haskell
The Haskell licensing checks are now done in ../../da-docs-daml-user-guide/licenses/extract.py
OSS Compliance in Action
The logical steps are the following:
- generate a list of dependencies for both haskell and java (and javascript in the future)
- for each single dependency, check:
- the license is whitelisted as per LICENSES_WHITE_LIST.csv
- the package is whitelisted as per PACKAGES_WHITE_LIST.csv
- any dependency whose license or package is not whitelisted is then considered non compliant
Licenses
We use a white list approach: explicitly defining which licenses are allowed.
The white listed licenses are defined in LICENSES_WHITE_LIST.csv
As you can see the file is grouped by license group (e.g. EPL, Eclipse Public License).
The license group is a logical constructor and it's only used to group similar licenses in the csv file.
Especially in the maven world, there are many variants on how a an underlying open source license is defined that makes sense to group them together.
Packages
PACKAGES_WHITE_LIST.csv is a way to filter packages created internally.
What if the check fails?
Failure due to a non white-listed dependency
Please coordinate with the SPG group to ensure the offending license is reviewed with CTO / General Counselor.
It may be a variation of an already approved license. If that's the case, once approved, it can be added to the white listed licenses.
TODO: provide a link to a list of approved licenses
How to invoke the compliance check
To invoke the oss compliance check, invoke:
make oss-compliance
This will then trigger the following: