git clone https://github.com/stalwartlabs/stalwart.git ~/src/stalwart-upstream   # outside this repo
git -C ~/src/stalwart-upstream fetch --tags
tools/fork/strip.py --upstream ~/src/stalwart-upstream --ref v0.16.22 --out /tmp/strip-v0.16.22

It writes OUT/tree (the stripped source) and OUT/STRIP-REPORT.md and .json. Exit 0 means verified clean. Exit 1 means malformed markers, or something Enterprise-only survived. Read the report's Problems section.

The report's Third-party code section lists upstream code under other licenses. Files marked new need their notice added to THIRD-PARTY.md at the repository root before the import is merged.

It needs Python 3.12+ (for tarfile's data filter), git and cargo.

Two passes run after the strip:

Renames. The upstream name is replaced where it's an identifier clients, users or operators meet: wire-protocol names, the web interface's client id, store keys, configuration defaults and the served schema, as renames.py lists them. main was renamed with the same module. A re-import arrives purged, so those lines never conflict. Copyright notices and prose are left alone. The report lists every substitution by file.
Build check. The stripped tree is compiled (cargo check --workspace --all-targets) into target/strip-check, which stays warm between imports. A file that survived the strip but calls code that didn't fails the run; the report names it. Handle it in the merge into main, never on upstream: upstream holds the strip's output and nothing else. Imports the strip left unused are listed without failing. --no-build-check skips the pass.

name-check.py

Fails when the upstream project's name appears in a Rust string literal that name-allowlist.txt doesn't list. CI runs it on every push and pull request, so an upstream merge can't bring the name back into what users and operators see. Comments, copyright headers and test directories aren't checked.

tools/fork/name-check.py          # exit 1 on anything new
tools/fork/name-check.py --list   # every finding, in allowlist format

Rename what it reports. If a string has to stay, such as a key-derivation context or a wire-protocol identifier, add its --list line to the allowlist under the reason it stays.

notice-check.py

Fails when an upstream file the fork changed doesn't carry the AGPL 5(a) notice, Modified by Coffey Labs in <year> for INBUXA., under upstream's license line. "Changed" means it differs from the upstream branch, so the list comes from the diff, not from memory. CI runs it beside the name check.

tools/fork/notice-check.py          # exit 1 on a missing notice
tools/fork/notice-check.py --fix    # add it where it's missing

Run --fix after resolving an upstream merge: a conflict resolved by taking upstream's side can drop a notice the file had.

record-compat.py

Records what the *_compat tests compare against, from the Enterprise server, while it is still running. Read-only: /get and /query only. See docs/spec/compat-tests.md.

tools/fork/record-compat.py --server https://mail.example.org \
    --admin '[email protected]:PASSWORD' --out ./compat \
    --tenant-admin '[email protected]:PASSWORD'

run-compat.sh

Runs the *_compat tests against a copy of INBUXA's RocksDB store, making a fresh copy for each one. See docs/spec/compat-tests.md.

tools/fork/run-compat.sh --store /srv/inbuxa-copy/rocks.db \
    --admin '[email protected]:PASSWORD' --recordings ~/compat