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dennis zhuang e89d591cb4 chore: declare GreptimeDB Enterprise License for enterprise-gated sources (#8364) 
* chore: declare GreptimeDB Enterprise License for enterprise-gated sources

The `enterprise`-feature-gated sources (triggers, mito2 extension) were
excluded from the Apache-2.0 header check but carried no license of their
own. Declare a separate GreptimeDB Enterprise License and enforce it.

- Add LICENSE-ENTERPRISE (open-core split; core stays Apache-2.0).
- Add an Enterprise License header to each enterprise source file.
- Add licenserc-enterprise.toml and a second hawkeye step in CI to enforce
  the Enterprise header on exactly those files.
- Cross-reference the two complementary file lists; document the layout in
  licenses/README.md and the README License section.

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

* chore: reference per-customer Enterprise Agreement instead of a terms URL

There is no public enterprise-terms page; each customer signs an individually
negotiated agreement. Point the license at a "separate written commercial
agreement with GrepTime Inc." and direct readers to the existing contact page.

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>

---------

Signed-off-by: Dennis Zhuang <killme2008@gmail.com>
2026-06-26 06:31:02 +00:00
..
enterprise-header.txt
chore: declare GreptimeDB Enterprise License for enterprise-gated sources (#8364)
2026-06-26 06:31:02 +00:00
README.md
chore: declare GreptimeDB Enterprise License for enterprise-gated sources (#8364)
2026-06-26 06:31:02 +00:00

README.md

Licensing

GreptimeDB is an open-core project with a dual-license layout.

Scope License Where it's declared
Core (default build) Apache-2.0 /LICENSE; per-file Apache header enforced by /licenserc.toml
Enterprise features GreptimeDB Enterprise License /LICENSE-ENTERPRISE; per-file Enterprise header enforced by /licenserc-enterprise.toml

Enterprise sources are gated behind the enterprise Cargo feature and are not compiled into the default open-source build. Each one carries an explicit Enterprise License header generated from enterprise-header.txt.

How it's enforced

CI (license-header-check in .github/workflows/develop.yml) runs hawkeye twice:

  1. Default config — applies the Apache-2.0 header to all sources, excluding the enterprise files.
  2. licenserc-enterprise.toml — applies the Enterprise header to only the enterprise files.

The two file lists are complementary and must stay in sync:

  • licenserc.toml excludes — the # enterprise block.
  • licenserc-enterprise.toml includes.

Adding a new enterprise file

  1. Add its path to both lists above.
  2. Apply the header: hawkeye format --config licenserc-enterprise.toml.
  3. Verify: hawkeye check --config licenserc-enterprise.toml.

Do not put an Apache-2.0 header on an enterprise file, and do not leave an enterprise file without a header — CI fails in both cases.