uptime-kuma/CONTRIBUTING.md

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# Project Info
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First of all, thank you everyone who made pull requests for Uptime Kuma, I never thought GitHub Community can be that nice! And also because of this, I also never thought other people actually read my code and edit my code. It is not structured and commented so well, lol. Sorry about that.
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The project was created with vite.js (vue3). Then I created a subdirectory called "server" for server part. Both frontend and backend share the same package.json.
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The frontend code build into "dist" directory. The server (express.js) exposes the "dist" directory as root of the endpoint. This is how production is working.
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## Key Technical Skills
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- Node.js (You should know what are promise, async/await and arrow function etc.)
- Socket.io
- SCSS
- Vue.js
- Bootstrap
- SQLite
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## Directories
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- data (App data)
- dist (Frontend build)
- extra (Extra useful scripts)
- public (Frontend resources for dev only)
- server (Server source code)
- src (Frontend source code)
- test (unit test)
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## Can I create a pull request for Uptime Kuma?
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⚠️ 2022-03-02 Update:
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Since I found that merging pull requests is a pretty heavy task for me, I try to rearrange it.
✅ Accept:
- Bug/Security fix
- Translations
- Adding notification providers
❌ Avoid:
- Large pull requests
- New big features
My long story here: https://www.reddit.com/r/UptimeKuma/comments/t1t6or/comment/hynyijx/
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### Recommended Pull Request Guideline
1. Fork the project
1. Clone your fork repo to local
1. Create a new branch
1. Create an empty commit
`git commit -m "[empty commit] pull request for <YOUR TASK NAME>" --allow-empty`
1. Push to your fork repo
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1. Create a pull request: https://github.com/louislam/uptime-kuma/compare
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1. Write a proper description
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1. Click "Change to draft"
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#### ❌ Won't Merge
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- Any breaking changes
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- Duplicated pull request
- Buggy
- Existing logic is completely modified or deleted
- A function that is completely out of scope
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## Project Styles
I personally do not like something need to learn so much and need to config so much before you can finally start the app.
- Easy to install for non-Docker users, no native build dependency is needed (at least for x86_64), no extra config, no extra effort to get it run
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- Single container for Docker users, no very complex docker-compose file. Just map the volume and expose the port, then good to go
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- Settings should be configurable in the frontend. Env var is not encouraged.
- Easy to use
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## Coding Styles
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- 4 spaces indentation
- Follow `.editorconfig`
- Follow ESLint
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## Name convention
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- Javascript/Typescript: camelCaseType
- SQLite: underscore_type
- CSS/SCSS: dash-type
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## Tools
- Node.js >= 14
- Git
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- IDE that supports ESLint and EditorConfig (I am using IntelliJ IDEA)
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- A SQLite tool (SQLite Expert Personal is suggested)
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## Install dependencies
```bash
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npm ci
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```
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## How to start the Backend Dev Server
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(2021-09-23 Update)
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```bash
npm run start-server-dev
```
It binds to `0.0.0.0:3001` by default.
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### Backend Details
It is mainly a socket.io app + express.js.
express.js is just used for serving the frontend built files (index.html, .js and .css etc.)
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- model/ (Object model, auto mapping to the database table name)
- modules/ (Modified 3rd-party modules)
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- notification-providers/ (individual notification logic)
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- routers/ (Express Routers)
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- socket-handler (Socket.io Handlers)
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- server.js (Server main logic)
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## How to start the Frontend Dev Server
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1. Set the env var `NODE_ENV` to "development".
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2. Start the frontend dev server by the following command.
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```bash
npm run dev
```
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It binds to `0.0.0.0:3000` by default.
You can use Vue.js devtools Chrome extension for debugging.
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### Build the frontend
```bash
npm run build
```
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### Frontend Details
Uptime Kuma Frontend is a single page application (SPA). Most paths are handled by Vue Router.
The router is in `src/router.js`
As you can see, most data in frontend is stored in root level, even though you changed the current router to any other pages.
The data and socket logic are in `src/mixins/socket.js`.
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## Database Migration
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1. Create `patch-{name}.sql` in `./db/`
2. Add your patch filename in the `patchList` list in `./server/database.js`
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## Unit Test
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It is an end-to-end testing. It is using Jest and Puppeteer.
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```bash
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npm run build
npm test
```
By default, the Chromium window will be shown up during the test. Specifying `HEADLESS_TEST=1` for terminal environments.
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## Update Dependencies
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Install `ncu`
https://github.com/raineorshine/npm-check-updates
```bash
ncu -u -t patch
npm install
```
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Since previously updating Vite 2.5.10 to 2.6.0 broke the application completely, from now on, it should update patch release version only.
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Patch release = the third digit ([Semantic Versioning](https://semver.org/))
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## Translations
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Please read: https://github.com/louislam/uptime-kuma/tree/master/src/languages
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## Wiki
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Since there is no way to make a pull request to wiki's repo, I have set up another repo to do that.
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https://github.com/louislam/uptime-kuma-wiki
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## Maintainer
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Check the latest issues and pull requests:
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https://github.com/louislam/uptime-kuma/issues?q=sort%3Aupdated-desc
### Release Procedures
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1. Draft a release note
1. Make sure the repo is cleared
1. `npm run update-version 1.X.X`
1. `npm run build`
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1. `npm run build-docker`
1. `git push`
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1. Publish the release note as 1.X.X
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1. `npm run upload-artifacts` with env vars VERSION=1.X.X;GITHUB_TOKEN=XXXX
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1. SSH to demo site server and update to 1.X.X
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Checking:
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- Check all tags is fine on https://hub.docker.com/r/louislam/uptime-kuma/tags
- Try the Docker image with tag 1.X.X (Clean install / amd64 / arm64 / armv7)
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- Try clean installation with Node.js
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### Release Wiki
#### Setup Repo
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```bash
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git clone https://github.com/louislam/uptime-kuma-wiki.git
cd uptime-kuma-wiki
git remote add production https://github.com/louislam/uptime-kuma.wiki.git
```
#### Push to Production Wiki
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```bash
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git pull
git push production master
```