##
```
The `header` is mandatory and must conform to the [Commit Message Header](#commit-header) format.
The `body` is mandatory for all commits except for those of type "docs".
When the body is present it must be at least 20 characters long and must conform to the [Commit Message Body](#commit-body) format.
The `footer` is optional. The [Commit Message Footer](#commit-footer) format describes what the footer is used for and the structure it must have.
#### ()(!?):
│ │ │ │
│ │ │ └─⫸ Summary in present tense. Not capitalized. No period at the end.
│ │ │
│ │ └─⫸ Exclamation mark: breaking change
│ │
│ └─⫸ Commit Scope: bot|website
│
└─⫸ Commit Type: build|ci|docs|feat|fix|perf|refactor|test
```
The `` and `` fields are mandatory, the `()` field is optional.
Exclamation mark is optional too, but it's used to mark breaking changes.
##### Type
Must be one of the following:
- **build**: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
- **ci**: Changes to our CI configuration files and scripts (examples: CircleCi, SauceLabs)
- **docs**: Documentation only changes
- **feat**: A new feature
- **fix**: A bug fix
- **perf**: A code change that improves performance
- **refactor**: A code change that neither fixes a bug nor adds a feature
- **test**: Adding missing tests or correcting existing tests
##### Scope
The scope should be the name of the npm package affected (as perceived by the person reading the changelog generated from commit messages).
The following is the list of supported scopes:
- `bot`
- `website`
There are currently a few exceptions to the "use package name" rule:
- none/empty string: useful for `test` and `refactor` changes that are done across all packages (e.g. `test: add missing unit tests`) and for docs changes that are not related to a specific package (e.g. `docs: fix typo in tutorial`).
##### Summary
Use the summary field to provide a succinct description of the change:
- use the imperative, present tense: "change" not "changed" nor "changes"
- don't capitalize the first letter
- no dot (.) at the end
####
```
or
```
See pull request #
```
### Revert commits
If the commit reverts a previous commit, it should begin with `revert: `, followed by the header of the reverted commit.
The content of the commit message body should contain:
- information about the SHA of the commit being reverted in the following format: `This reverts commit `,
- a clear description of the reason for reverting the commit message.