cal.pub0.org/CONTRIBUTING.md

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# Contributing to Cal.com
Contributions are what makes the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**.
- Before jumping into a PR be sure to search [existing PRs](https://github.com/calcom/cal.com/pulls) or [issues](https://github.com/calcom/cal.com/issues) for an open or closed item that relates to your submission.
## Priorities
<table>
<tr>
<td>
Type of Issue
</td>
<td>
Priority
</td>
</tr>
<tr>
<td>
Minor improvements, non-core feature requests
</td>
<td>
<a href="https://github.com/calcom/cal.com/issues?q=is:issue+is:open+sort:updated-desc+label:%22Low+priority%22">
<img src="https://img.shields.io/badge/-Low%20Priority-green">
</a>
</td>
</tr>
<tr>
<td>
Confusing UX (... but working)
</td>
<td>
<a href="https://github.com/calcom/cal.com/issues?q=is:issue+is:open+sort:updated-desc+label:%22Medium+priority%22">
<img src="https://img.shields.io/badge/-Medium%20Priority-yellow">
</a>
</td>
</tr>
<tr>
<td>
Core Features (Booking page, availability, timezone calculation)
</td>
<td>
<a href="https://github.com/calcom/cal.com/issues?q=is:issue+is:open+sort:updated-desc+label:%22High+priority%22">
<img src="https://img.shields.io/badge/-High%20Priority-orange">
</a>
</td>
</tr>
<tr>
<td>
Core Bugs (Login, Booking page, Emails are not working)
</td>
<td>
<a href="https://github.com/calcom/cal.com/issues?q=is:issue+is:open+sort:updated-desc+label:Urgent">
<img src="https://img.shields.io/badge/-Urgent-red">
</a>
</td>
</tr>
</table>
## Developing
The development branch is `main`. This is the branch that all pull
requests should be made against. The changes on the `main`
branch are tagged into a release monthly.
To develop locally:
1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your
own GitHub account and then
[clone](https://help.github.com/articles/cloning-a-repository/) it to your local device.
2. Create a new branch:
```sh
git checkout -b MY_BRANCH_NAME
```
3. Install yarn:
```sh
npm install -g yarn
```
4. Install the dependencies with:
```sh
yarn
```
5. Set up your `.env` file:
- Duplicate `.env.example` to `.env`.
- Use `openssl rand -base64 32` to generate a key and add it under `NEXTAUTH_SECRET` in the `.env` file.
- Use `openssl rand -base64 24` to generate a key and add it under `CALENDSO_ENCRYPTION_KEY` in the `.env` file.
6. Setup Node
If your Node version does not meet the project's requirements as instructed by the docs, "nvm" (Node Version Manager) allows using Node at the version required by the project:
```sh
nvm use
```
You first might need to install the specific version and then use it:
```sh
nvm install && nvm use
```
You can install nvm from [here](https://github.com/nvm-sh/nvm).
7. Start developing and watch for code changes:
```sh
yarn dev
```
## Building
You can build the project with:
```bash
yarn build
```
Please be sure that you can make a full production build before pushing code.
## Testing
More info on how to add new tests coming soon.
### Running tests
This will run and test all flows in multiple Chromium windows to verify that no critical flow breaks:
```sh
yarn test-e2e
```
#### Resolving issues
##### E2E test browsers not installed
Run `npx playwright install` to download test browsers and resolve the error below when running `yarn test-e2e`:
```
Executable doesn't exist at /Users/alice/Library/Caches/ms-playwright/chromium-1048/chrome-mac/Chromium.app/Contents/MacOS/Chromium
```
## Linting
To check the formatting of your code:
```sh
yarn lint
```
If you get errors, be sure to fix them before committing.
## Making a Pull Request
- Be sure to [check the "Allow edits from maintainers" option](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork) while creating your PR.
- If your PR refers to or fixes an issue, be sure to add `refs #XXX` or `fixes #XXX` to the PR description. Replacing `XXX` with the respective issue number. See more about [Linking a pull request to an issue](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue).
- Be sure to fill the PR Template accordingly.
- Review [App Contribution Guidelines](./packages/app-store/CONTRIBUTING.md) when building integrations
## Guidelines for committing yarn lockfile
Do not commit your `yarn.lock` unless you've made changes to the `package.json`. If you've already committed `yarn.lock` unintentionally, follow these steps to undo:
If your last commit has the `yarn.lock` file alongside other files and you only wish to uncommit the `yarn.lock`:
```bash
git checkout HEAD~1 yarn.lock
git commit -m "Revert yarn.lock changes"
```
If you've pushed the commit with the `yarn.lock`:
1. Correct the commit locally using the above method.
2. Carefully force push:
```bash
git push origin <your-branch-name> --force
```
If `yarn.lock` was committed a while ago and there have been several commits since, you can use the following steps to revert just the `yarn.lock` changes without impacting the subsequent changes:
1. **Checkout a Previous Version**:
- Find the commit hash before the `yarn.lock` was unintentionally committed. You can do this by viewing the Git log:
```bash
git log yarn.lock
```
- Once you have identified the commit hash, use it to checkout the previous version of `yarn.lock`:
```bash
git checkout <commit_hash> yarn.lock
```
2. **Commit the Reverted Version**:
- After checking out the previous version of the `yarn.lock`, commit this change:
```bash
git commit -m "Revert yarn.lock to its state before unintended changes"
```
3. **Proceed with Caution**:
- If you need to push this change, first pull the latest changes from your remote branch to ensure you're not overwriting other recent changes:
```bash
git pull origin <your-branch-name>
```
- Then push the updated branch:
```bash
git push origin <your-branch-name>
```