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Contributing to this project

Please take a moment to review this document in order to make the contribution process easy and effective for everyone involved.

Following these guidelines helps to communicate that you respect the time of the developers managing and developing this open source project. In return, they should reciprocate that respect in addressing your issue or assessing patches and features.

Development environment

Next steps should work on clear Ubuntu 18.04.

  • Install necessary dependencies:
$ sudo apt-get install -y curl redis-server python3-dev python3-pip python3-venv libldap2-dev libsasl2-dev
$ git clone https://github.com/opencv/cvat
$ cd cvat && mkdir logs keys
$ python3 -m venv .env
$ . .env/bin/activate
$ pip install -U pip wheel
$ pip install -r cvat/requirements/development.txt
$ python manage.py migrate
$ python manage.py collectstatic
  • Create a super user for CVAT:
$ python manage.py createsuperuser
Username (leave blank to use 'django'): ***
Email address: ***
Password: ***
Password (again): ***
  • Run Visual Studio Code from the virtual environment
$ code .
  • Inside Visual Studio Code install Debugger for Chrome and Python extensions

  • Reload Visual Studio Code

  • Select CVAT Debugging configuration and start debugging (F5)

You have done! Now it is possible to insert breakpoints and debug server and client of the tool.

Branching model

The project uses a successful Git branching model. Thus it has a couple of branches. Some of them are described below:

  • origin/master to be the main branch where the source code of HEAD always reflects a production-ready state.
  • origin/develop to be the main branch where the source code of HEAD always reflects a state with the latest delivered development changes for the next release. Some would call this the “integration branch”.

Using the issue tracker

The issue tracker is the preferred channel for bug reports, features requests and submitting pull requests, but please respect the following restrictions:

  • Please do not use the issue tracker for personal support requests (use Stack Overflow).

  • Please do not derail or troll issues. Keep the discussion on topic and respect the opinions of others.

Bug reports

A bug is a demonstrable problem that is caused by the code in the repository. Good bug reports are extremely helpful - thank you!

Guidelines for bug reports:

  1. Use the GitHub issue search — check if the issue has already been reported.

  2. Check if the issue has been fixed — try to reproduce it using the latest develop branch in the repository.

  3. Isolate the problem — ideally create a reduced test case.

A good bug report shouldn't leave others needing to chase you up for more information. Please try to be as detailed as possible in your report. What is your environment? What steps will reproduce the issue? What browser(s) and OS experience the problem? What would you expect to be the outcome? All these details will help people to fix any potential bugs.

Example:

Short and descriptive example bug report title

A summary of the issue and the browser/OS environment in which it occurs. If suitable, include the steps required to reproduce the bug.

  1. This is the first step
  2. This is the second step
  3. Further steps, etc.

Any other information you want to share that is relevant to the issue being reported. This might include the lines of code that you have identified as causing the bug, and potential solutions (and your opinions on their merits).

Feature requests

Feature requests are welcome. But take a moment to find out whether your idea fits with the scope and aims of the project. It's up to you to make a strong case to convince the project's developers of the merits of this feature. Please provide as much detail and context as possible.

Pull requests

Good pull requests - patches, improvements, new features - are a fantastic help. They should remain focused in scope and avoid containing unrelated commits.

Please ask first before embarking on any significant pull request (e.g. implementing features, refactoring code, porting to a different language), otherwise you risk spending a lot of time working on something that the project's developers might not want to merge into the project.

Please adhere to the coding conventions used throughout a project (indentation, accurate comments, etc.) and any other requirements (such as test coverage).

Follow this process if you'd like your work considered for inclusion in the project:

  1. Fork the project, clone your fork, and configure the remotes:

    # Clone your fork of the repo into the current directory
    git clone https://github.com/<your-username>/<repo-name>
    # Navigate to the newly cloned directory
    cd <repo-name>
    # Assign the original repo to a remote called "upstream"
    git remote add upstream https://github.com/<upstream-owner>/<repo-name>
  2. If you cloned a while ago, get the latest changes from upstream:

    git checkout <dev-branch>
    git pull upstream <dev-branch>
  3. Create a new topic branch (off the main project development branch) to contain your feature, change, or fix:

    git checkout -b <topic-branch-name>
  4. Commit your changes in logical chunks. Please adhere to these git commit message guidelines or your code is unlikely be merged into the main project. Use Git's interactive rebase feature to tidy up your commits before making them public.

  5. Locally merge (or rebase) the upstream development branch into your topic branch:

    git pull [--rebase] upstream <dev-branch>
  6. Push your topic branch up to your fork:

    git push origin <topic-branch-name>
  7. Open a Pull Request with a clear title and description.

IMPORTANT: By submitting a patch, you agree to allow the project owner to license your work under the same license as that used by the project.

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