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# Additional Onboarding Information
## Labels
### Subsystems
* `lib/*.js` (`assert`, `buffer`, etc.)
* `build`
* `doc`
* `lib / src`
* `test`
* `tools`
There may be more than one subsystem valid for any particular issue or pull
request.
### General
* `confirmed-bug` - Bugs you have verified exist
* `discuss` - Things that need larger discussion
* `feature request` - Any issue that requests a new feature (usually not PRs)
* `good first issue` - Issues suitable for newcomers to process
* `meta` - For issues whose topic is governance, policies, procedures, etc.
--
* `semver-{minor,major}`
* be conservative – that is, if a change has the remote *chance* of breaking
something, go for semver-major
* when adding a semver label, add a comment explaining why you're adding it
* minor vs. patch: roughly: "does it add a new method / does it add a new
section to the docs"
* major vs. everything else: run last versions tests against this version, if
they pass, **probably** minor or patch
* A breaking change helper
([full source](https://gist.github.com/chrisdickinson/ba532fa0e4e243fb7b44)):
```sh
SHOW=$(git show-ref -d $(git describe --abbrev=0) | tail -n1 | awk '{print $1}')
git checkout $(git show -s --pretty='%T' $SHOW) -- test
make -j4 test
```
### LTS/Version labels
We use labels to keep track of which branches a commit should land on:
* `dont-land-on-v?.x`
* For changes that do not apply to a certain release line
* Also used when the work of backporting a change outweighs the benefits
* `land-on-v?.x`
* Used by releasers to mark a PR as scheduled for inclusion in an LTS release
* Applied to the original PR for clean cherry-picks, to the backport PR
otherwise
* `backport-requested-v?.x`
* Used to indicate that a PR needs a manual backport to a branch in order to
land the changes on that branch
* Typically applied by a releaser when the PR does not apply cleanly or it
breaks the tests after applying
* Will be replaced by either `dont-land-on-v?.x` or `backported-to-v?.x`
* `backported-to-v?.x`
* Applied to PRs for which a backport PR has been merged
* `lts-watch-v?.x`
* Applied to PRs which the LTS working group should consider including in a
LTS release
* Does not indicate that any specific action will be taken, but can be
effective as messaging to non-collaborators
* `lts-agenda`
* For things that need discussion by the LTS working group
* (for example semver-minor changes that need or should go into an LTS
release)
* `v?.x`
* Automatically applied to changes that do not target `master` but rather the
`v?.x-staging` branch
Once a release line enters maintenance mode, the corresponding labels do not
need to be attached anymore, as only important bugfixes will be included.
### Other Labels
* Operating system labels
* `macos`, `windows`, `smartos`, `aix`
* No linux, linux is the implied default
* Architecture labels
* `arm`, `mips`, `s390`, `ppc`
* No x86{_64}, since that is the implied default
|
