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CONTRIBUTING.md
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# Contributing to Harbor # Contributing to Harbor
This guide provides information on filing issues and guidelines for open source contributors. ## Welcome
Welcome to Harbor! This guide provides information on filing issues and guidelines for open source contributors. **Please leave comments / suggestions if you find something is missing or incorrect.**
Contributors are encouraged to collaborate using the following resources in addition to the GitHub [issue tacker](https://github.com/vmware/harbor/issues):
* [Slack](https://vmwarecode.slack.com/messages/harbor): If you don't have an @vmware.com or @emc.com email, please sign up at [VMware {code}](https://code.vmware.com/join/) to get a Slack invite.
* Mail group: Use harbor-dev@googlegroups.com for discussion on Harbor development and contribution. To subscribe, send an email to harbor-dev+subscribe@googlegroups.com .
## Getting Started
### Sign the CLA
Before doing contributions, you must sign the CLA. If it is the first time you're making a Pull Requests(PR), please make sure to sign the contributor license agreement (CLA) online. A bot will automatically update the PR for the CLA process.
### Fork Repository
Fork the Harbor repository on GitHub to your personal account.
```
#Set golang environment
export GOPATH=$HOME/go
mkdir -p $GOPATH/src/github.com/vmware
#Get code
go get github.com/vmware/harbor
cd $GOPATH/src/github.com/vmware/harbor
#Track repository under your personal account
git config push.default nothing # Anything to avoid pushing to vmware/harbor by default
git remote rename origin vmware
git remote add $USER git@github.com:$USER/harbor.git
git fetch $USER
```
**NOTES:** Note that GOPATH can be any directory, the example above uses $HOME/go. Change $USER above to your own GitHub username.
To build the project, please refer the [build](docs/compile_guide.md) guideline.
### Repository Structure
Here is the basic structure of the harbor code base. Some of the key folders / files are commented for your references.
```
.
...
├── Makefile #Make file for compile and build code
├── contrib #Contain documents, scripts, and other helpful things which are contributed by the community
├── docs #Keep documents here
├── make #Resource for building and setting up Harbor environment
...
├── src #Source code folder
├── tests #Test cases for API / e2e testings
└── tools #Keep supporting tools
...
```
The folder graph below shows the structure of the source code folder `harbor/src`, which will be your primary working directory. The key folders are also commented.
```
.
├── adminserver # Source code for the admin server component
│   ├── api
│   ├── auth
│   ├── client
│   ├── handlers
│   ├── systemcfg
│   └── systeminfo
├── common # Source code for some general components like dao etc.
│   ├── api
│   ├── config
│   ├── dao
│   ├── models
│   ├── notifier
│   ├── scheduler
│   ├── secret
│   ├── security
│   └── utils
├── jobservice # Source code for the job service component
│   ├── api
│   ├── config
│   ├── job
│   ├── replication
│   ├── scan
│   └── utils
├── ui # Source code for the harbor service component
│   ├── api
│   ├── auth
│   ├── config
│   ├── controllers
│   ├── filter
│   ├── promgr
│   ├── proxy
│   ├── service
│   ├── static
│   ├── utils
│   └── views
├── ui_ng # The code of harbor web UI
│   ├── e2e
│   ├── lib # Source code of harbor-ui npm library which includes the main UI components of web UI
│   └── src # General web page UI code of Harbor
└── vendor # Go code dependencies
├── github.com
├── golang.org
├── google.golang.org
└── gopkg.in
```
### Setup Development Environment
#### Go
Harbor backend is written in [Go](http://golang.org/). If you don't have a Harbor backend service development environment, please [set one up](https://golang.org/doc/install).
| Harbor | Requires Go |
|----------|---------------|
| 1.1 | 1.7.3 |
| 1.2 | 1.7.3 |
| 1.3 | 1.9.2 |
| 1.4 | 1.9.2 |
Ensure your GOPATH and PATH have been configured in accordance with the Go environment instructions.
**Dependency Management:** Harbor uses [dep](https://github.com/golang/dep) for dependency management of go code. The official maintainers will take the responsibility for managing the code in `vendor` directory. Please don't try to submit a PR to update the dependency code, open an issue instead. If your PR requires a change in the vendor code please make sure you discuss it with the maintainers in advance.
#### Web
Harbor web UI is built based on [Clarity](https://vmware.github.io/clarity/) and [Angular](https://angular.io/) web framework. To setup web UI development environment, please make sure the [npm](https://www.npmjs.com/get-npm) tool is installed first.
| Harbor | Requires Angular | Requires Clarity |
|----------|--------------------|--------------------|
| 1.1 | 2.4.1 | 0.8.7 |
| 1.2 | 4.1.3 | 0.9.8 |
| 1.3 | 4.3.0 | 0.10.17 |
| 1.4 | | |
**Npm Package Dependency:** Run the following commands to restore the package dependencies.
```
#For the web UI
cd $REPO_DIR/src/ui_ng
npm install
#For the UI library
cd $REPO_DIR/src/ui_ng/lib
npm install
```
To run the code, please refer to the [build](docs/compile_guide.md) guideline.
## Contribute Workflow
PR are always welcome, even if they only contain small fixes like typos or a few lines of code. If there will be a significant effort, please document it as an issue and get a discussion going before starting to work on it.
Please submit a PR broken down into small changes bit by bit. A PR consisting of a lot features and code changes may be hard to review. It is recommended to submit PRs in an incremental fasion.
The graphic shown below describes the overall workflow about how to contribute code to Harbor repository.
![contribute workflow](docs/img/workflow.png)
### Fork and clone
Fork the Harbor repository and clone the code to your local workspace. Per Go's [workspace instructions](https://golang.org/doc/code.html#Workspaces), place Harbor's code on your `GOPATH`. Refer to section [Fork Repository](#fork-repository) for details.
Define a local working directory:
```
working_dir=$GOPATH/src/github.com/vmware
```
Set user to match your github profile name:
```
user={your github profile name}
```
Both `$working_dir` and `$user` are mentioned in the figure above.
### Branch
Changes should be made on your own fork in a new branch. The branch should be named `XXX-description` where XXX is the number of the issue. PR should be rebased on top of master without multiple branches mixed into the PR. If your PR do not merge cleanly, use commands listed below to get it up to date.
```
#vmware is the origin upstream
cd $working_dir/kubernetes
git fetch vmware
git checkout master
git rebase vmware/master
```
Branch from the updated `master` branch:
```
git checkout -b my_feature master
```
### Develop, Build and Test
Write code on the new branch in your fork. The coding style used in Harbor is suggested by the Golang community. See the [style doc](https://github.com/golang/go/wiki/CodeReviewComments) for details.
Try to limit column width to 120 characters for both code and markdown documents such as this one.
Always run [golint](https://github.com/golang/lint) on source code before
committing your changes.
```
#In the #working_dir/harbor, run
go list ./... | grep -v -E 'vendor|tests' | xargs -L1 fgt golint
```
Unit test cases should be added to cover the new code. Unit test framework for backend services is using [go testing](https://golang.org/doc/code.html#Testing). The UI library test framework is built based on [Jasmine](http://jasmine.github.io/2.4/introduction.html) and [Karma](https://karma-runner.github.io/1.0/index.html), please refer to [Angular Testing](https://angular.io/guide/testing) for more details.
Run go test cases:
```
#cd #working_dir/src/[package]
go test -v ./...
```
Run UI library test cases:
```
#cd #working_dir/src/ui_ng/lib
npm run test
```
To build code, please refer to [build](docs/compile_guide.md) guideline.
### Keep sync with upstream
Once your branch gets out of sync with the vmware/master branch, use the following commands to update:
```
git checkout my_feature
git fetch -a
git rebase vmware/master
```
Please don't use `git pull` instead of the above `fetch / rebase`. `git pull` does a merge, which leaves merge commits. These make the commit history messy and violate the principle that commits ought to be individually understandable and useful (see below). You can also consider changing your `.git/config` file via git config `branch.autoSetupRebase` always to change the behavior of `git pull`.
### Commit
Commit your changes if they're ready:
```
#git add -A
git commit #-a
git push --force-with-lease $user my_feature
```
The commit message should follow the convention on [How to Write a Git Commit Message](http://chris.beams.io/posts/git-commit/). Be sure to include any related GitHub issue references in the commit message. See [GFM syntax](https://guides.github.com/features/mastering-markdown/#GitHub-flavored-markdown) for referencing issues and commits.
To help write conforming commit messages, it is recommended to set up the [git-good-commit](https://github.com/tommarshall/git-good-commit) commit hook. Run this command in the Harbor repo's root directory:
```
curl https://cdn.rawgit.com/tommarshall/git-good-commit/v0.6.1/hook.sh > .git/hooks/commit-msg && chmod +x .git/hooks/commit-msg
```
### Automated Testing
Once your pull request has been opened, harbor will run two CI pipelines againest it.
1. In the travis CI, your source code will be checked via `golint`, `go vet` and `go race` that makes sure the code is readable, safe and correct. Also all of unit tests will be triggered via `go test` against the pull request. What you need to pay attation to is the travis result and the coverage report.
* If any failure in travis, you need to figure out whether it is introduced by your commits.
* If the coverage dramatic decline, you need to commit unit test to coverage your code.
2. In the drone CI, the E2E test will be triggered against the pull request. The pipeline is about to build and install harbor from source code, then to run four very basic E2E tests to validate the basic functionalities of harbor, like:
* Registry Basic Verfication, to validate the image can be pulled and pushed successful.
* Clair Basic Verfication, to validate the image can be scanned successful.
* Notary Basic Verfication, to validate the image can be signed successful.
* Ldap Basic Verfication, to validate harbor can work in LDAP environment.
### Push and Create PR
When ready for review, push your branch to your fork repository on `github.com`:
```
git push --force-with-lease $user my_feature
```
Then visit your fork at https://github.com/$user/harbor and click the `Compare & Pull Request` button next to your `my_feature` branch to create a new pull request (PR). Description of a pull request should refer to all the issues that it addresses. Remember to put a reference to issues (such as `Closes #XXX` and `Fixes #XXX`) in commits so that the issues can be closed when the PR is merged.
Once your pull request has been opened it will be assigned to one or more reviewers. Those reviewers will do a thorough code review, looking for correctness, bugs, opportunities for improvement, documentation and comments, and style.
Commit changes made in response to review comments to the same branch on your fork.
## Reporting issues ## Reporting issues
It is a great way to contribute to Harbor by reporting an issue. Well-written and complete bug reports are always welcome! Please open an issue on Github and follow the template to fill in required information. It is a great way to contribute to Harbor by reporting an issue. Well-written and complete bug reports are always welcome! Please open an issue on Github and follow the template to fill in required information.
Before opening any issue, please look up the existing [issues](https://github.com/vmware/harbor/issues) to avoid submitting a duplication. Before opening any issue, please look up the existing [issues](https://github.com/vmware/harbor/issues) to avoid submitting a duplication.
If you find a match, you can "subscribe" it to get notified on updates. If you have additional helpful information about the issue, please leave a comment. If you find a match, you can "subscribe" to it to get notified on updates. If you have additional helpful information about the issue, please leave a comment.
When reporting issues, always include: When reporting issues, always include:
@ -20,43 +290,15 @@ replace those parts with "REDACTED" or other strings like "****".
Be sure to include the steps to reproduce the problem if applicable. It can help us understand and fix your issue faster. Be sure to include the steps to reproduce the problem if applicable. It can help us understand and fix your issue faster.
## Documenting
## Contribution guidelines
### Pull requests
Pull requests (PR) are always welcome, even they are small fixes like typos or a few lines of code changes. If there will be significant effort, please first document as an issue and get the discussion going before starting to work on it.
Please submit a PR to contain changes bit by bit. A PR consisting of a lot features and code changes may be hard to review. It is recommended to submit PRs in a incremental fasion.
If you are not a member of `vmware` org in github, then your PR Drone CI build may fail. In that case, request one of the existing members / reviewers to fork your failed build to skip membership checking.
```shell
drone build start --param SKIP_CHECK_MEMBERSHIP=true vmware/harbor <Build Number>
```
### Design new features
You can propose new designs for existing Harbor features. You can also design
entirely new features. Please do open an issue on Github for discussion first. This is necessary to ensure the overall architecture is consistent and to avoid duplicated work in the roadmap.
### Dependency management
Harbor uses [dep](https://github.com/golang/dep) for dependency management of go code. The official maintainers will take the responsibility for managing the code in `vendor` directory. Please don't try to submit PR to update the dependency code, open an issue instead. If your PR requires a change in the vendor code please make sure you discuss it with maintainers in advance.
### Conventions
Fork Harbor's repository and make changes on your own fork in a new branch. The branch should be named XXX-description where XXX is the number of the issue. Please run the full test suite on your branch before creating a PR.
Always run [golint](https://github.com/golang/lint) on source code before
committing your changes.
Pull requests should be rebased on top of master without multiple branches mixed into the PR. If your pull requests do not merge cleanly, use `rebase master` in your branch rather than `merge master`.
Update the documentation if you are creating or changing features. Good documentation is as important as the code itself. Update the documentation if you are creating or changing features. Good documentation is as important as the code itself.
Before you submitting any pull request, always squash your commits into logical units of change. A logical unit of change is defined as a set of codes and documents that should be treated as a whole. When possible, compact your commits into one. The commands to use are `git rebase -i` and/or `git push -f`. The main location for the document is the `docs/` folder. The images referred in documents can be placed in `docs/img`.
Description of a pull request should refer to all the issues that it addresses. Remember to put a reference to issues (such as `Closes #XXX` and `Fixes #XXX`) in commits so that the issues can be closed when the PR is merged. Documents are written with Markdown text. See [Writting on GitHub](https://help.github.com/categories/writing-on-github/) for more details.
### Signing CLA ## Design new features
If it is the first time you are making a PR, be sure to sign the contributor license agreement (CLA) online. A bot will automatically update the PR for the CLA process.
You can propose new designs for existing Harbor features. You can also design
entirely new features. Please do open an issue on Github for discussion first. This is necessary to ensure the overall architecture is consistent and to avoid duplicated work in the roadmap.