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# Project Watchtower UI Monorepo
![Validate Monorepo](https://github.com/hashicorp/watchtower-ui/workflows/Validate%20Monorepo/badge.svg)
This monorepo contains multiple projects, including UIs and addons, used by
Project Watchtower.
This top-level repository provides limited common tasks, such as installation
and commit assistance. However, most tasks must be executed from within a
subproject, e.g. running or testing.
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**Table of Contents** *generated with [DocToc](https://github.com/thlorenz/doctoc)*
- [Prerequisites](#prerequisites)
- [Installation](#installation)
- [Yarn Commands](#yarn-commands)
- [Contributing](#contributing)
- [Branching](#branching)
- [Building ToC](#building-toc)
- [Committing](#committing)
- [License Checking](#license-checking)
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## Prerequisites
You will need the following things properly installed on your computer.
* [Git][git]
* [Node.js][node]
* [Yarn][yarn] installed globally
[git]: https://git-scm.com/
[node]: https://nodejs.org/
[yarn]: https://classic.yarnpkg.com/lang/en/
[yarn-workspaces]: https://classic.yarnpkg.com/en/docs/workspaces/
## Installation
* `git clone <repository-url>` this repository
* `cd watchtower-ui`
* `yarn install`
## Yarn Commands
List of available project commands. `yarn run <command-name>`
| Command | Description |
|---------------------|--------------------------------------------------------------------------------------------------------------------|
| commit | Replaces `git commit`, ensures checks pass before commit is allowed and normalizes commit messages across authors. |
| compliance:licenses | Checks that all dependencies have OSS-compatible licenses. |
| doc:toc | Automatically generates a table of contents for the README file. |
## Contributing
### Branching
We follow [A Successful Git Branching Model][nvie-git], otherwise known as
Gitflow. Branches `master` and `develop` are sacred mainlines into which we do
not commit directly. Instead, these branches have special meaning defining what
code may be found within. The `develop` branch contains code _for the next
release_. Code in `master` is _released, tagged, and ready for
production deployment_.
1. Start a new **topic branch** off `develop`.
2. Commit work.
3. When work is complete, create a PR from the topic branch into `develop`.
4. Code review and automated checks occur. If checks fail or changes are
requested, commit more work. Rinse and repeat until all checks pass and no
changes are requested.
5. A core team member may merge the PR into `develop`. At this point, the code
is unreleased but considered "releasable".
6. **Releasing**: when it's time to release, create a PR from `develop` into
`master` (we skip Gitflow's `release` branch). This is tantamount to
requesting a new release (version) of the product. Ensure the body of the PR
includes well-documented changes slated for release.
7. Code review and automated checks occur.
8. A core team member may merge the PR into `master` to initiate a release.
9. Tag the merge commit in `master` with version number of the release and cut
a release in GitHub.
While Gitflow may seem heavy, most of its process can be automated. Gitflow is
similar to its lighter-weight sibling [GitHub Flow][github-flow]. In essence,
Gitflow differs only by adding an second mainline branch (`master`) that is
designated as _always containing production code_. Another happy characteristic
of Gitflow is that it's easy to track the project's release history, since
_every commit to `master` is a release by definition_. The well-defined nature
of releases assists in cross-team collaboration, ensuring everyone has
confidence about the state of the project.
### Building ToC
To autogenerate a ToC (table of contents) for this README,
run `yarn doc:toc`. Please update the ToC whenever editing the structure
of README.
### Committing
Instead of the default `git commit`, we prescribe a custom command that ensures
linting and other checks pass before a commit may be completed. It also ensures
that all contributors author consistent commit messages. To get started with a
commit, stage your files as usual. Then run `yarn commit` and follow the
on-screen instructions to author your message.
#### License Checking
The licenses of dependencies are checking against a whitelist before every
commit. This helps catch undesirable licenses sooner (e.g. GPL). If your
commit fails due to an non-whitelisted license, you may add it to the whitelist
in `package.json` _as long as it is not a GPL variant or UNLICENSED_.
The change will be verified upon PR. GPL variants and UNLICENSED dependencies
will not be accepted.
[nvie-git]: https://nvie.com/posts/a-successful-git-branching-model/
[github-flow]: https://guides.github.com/introduction/flow/