add contributing guide

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shibao 2022-01-31 20:04:38 -05:00
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# Contribution Guide
Thanks for contributing to Cannery! Please read over the style tips to help make
contributing to Cannery (hopefully) as great of an experience as you found it!
## Tips
- In order to cut down on code verbosity and readability, please try to use
inline `do:` blocks for short functions and make your aliases as short as
possible without introducing ambiguity.
- I.e. since there's only one `Changeset` in the app, please alias
`Changeset.t()` instead of using `Ecto.Changeset.t()`
- Use pipelines when possible. If a function only calls a single method, a
pipeline isn't strictly necessary but still encouraged for future
modification.
- Please add typespecs to your functions! Even your private functions may be
used by others later down the line, and typespecs will be able to help
document your code just a little bit better, and improve the debugging
process.
- Typespec arguments can be named like `@spec function(arg_name :: type()) ::
return_type()`. Please use these for generic types, such as `map()` when the
input data isn't immediately obvious.
- When making new models, please take inspiration from the existing models in
regards to layout of sections, typespec design, and formatting.
- With Elixir convention, for methods that raise on error please name them like
`function_that_raises!()`, and functions that return a boolean like
`function_that_returns_boolean?()`. For other methods, it's encouraged to use
status tuples for other functions like `{:ok, result}` or `{:error,
reason_or_changeset}` instead of just returning `result` or `nil` for easy
pattern matching.
- Before submitting a PR, please make sure all tests are passing using `mix test`.
And as always, thank you!
# Features
- Created using the [Phoenix Framework](https://www.phoenixframework.org)
- User Registration/Sign in via [`phx_gen_auth`](https://hexdocs.pm/phx_gen_auth/).
- `Dockerfile` and example `docker-compose.yml`
- Automatic migrations in `MIX_ENV=prod` or Docker image
- JS linting with [standard.js](https://standardjs.com), HEEx linting with
[heex_formatter](https://github.com/feliperenan/heex_formatter)
# Instructions
1. Clone the repo
1. Install the elixir and erlang binaries. I recommend using [asdf version
manager](https://asdf-vm.com/guide/getting-started.html#_1-install-dependencies),
which will use the `.tool-versions` file to install the correct versions of
Erlang, Elixir and npm for this project!
1. Run `mix deps.get` and `mix compile` to fetch all dependencies
1. Run `mix setup` to initialize your database.
1. Run `mix phx.server` to start the development server.
# Configuration
For development, I recommend setting environment variables with [direnv](https://direnv.net).
## `MIX_ENV=dev`
In `dev` mode, Cannery will listen for these environment variables on compile.
- `HOST`: External url to generate links with. Set these especially if you're
behind a reverse proxy. Defaults to `localhost`.
- `PORT`: External port for urls. Defaults to `443`.
- `DATABASE_URL`: Controls the database url to connect to. Defaults to
`ecto://postgres:postgres@localhost/cannery_dev`.
- `REGISTRATION`: Controls if user sign-up should be invite only or set to public. Set to `public` to enable public registration. Defaults to `invite`.
## `MIX_ENV=prod`
In `prod` mode (or in the Docker container), Cannery will listen for these environment variables at runtime.
- `HOST`: External url to generate links with. Set these especially if you're
behind a reverse proxy. Defaults to `localhost`.
- `PORT`: Internal port to bind to. Defaults to `80` and attempts to bind to
`0.0.0.0`. Must be reverse proxied!
- `DATABASE_URL`: Controls the database url to connect to. Defaults to
`ecto://postgres:postgres@cannery-db/cannery`.
- `ECTO_IPV6`: Controls if Ecto should use ipv6 to connect to PostgreSQL.
Defaults to `false`.
- `POOL_SIZE`: Controls the pool size to use with PostgreSQL. Defaults to `10`.
- `SECRET_KEY_BASE`: Secret key base used to sign cookies. Must be generated
with `mix phx.gen.secret` and set for server to start.
- `REGISTRATION`: Controls if user sign-up should be invite only or set to public. Set to `public` to enable public registration. Defaults to `invite`.

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# Features
- User Registration/Sign in via `phx_gen_auth`
- `Dockerfile` and example `docker-compose.yml`
- Automatic migrations in `MIX_ENV=prod` or Docker image
- JS linting with [standard.js](https://standardjs.com), HEEx linting with
[heex_formatter](https://github.com/feliperenan/heex_formatter)
- Customizable invite tokens or public registration via `REGISTRATION`
- Create containers to store your ammunition, and tag them with custom tags
- Add ammunition types to Cannery, and then ammunition to your containers
- Customizable invite tokens or public registration via the `REGISTRATION`
environment variable.
# Installation
1. Install [Docker Compose](https://docs.docker.com/compose/install/) or alternatively [Docker Desktop](https://docs.docker.com/desktop/) on your machine.
1. Copy the example `docker-compose.yml` into your local machine where you want
1. Copy the example `docker-compose.yml` into your local machine where you want.
Bind mounts are created in the same directory by default.
1. Use `docker-compose up` or `docker-compose up -d` to start the container.
# Local Development
## Reverse proxy
1. Clone the repo
2. Run `mix setup`
3. Run `mix phx.server` to start the development server
Finally, reverse proxy to port `80` of the container. If you're using a reverse proxy in another docker container, you can reverse proxy to `http://cannery:80`. Otherwise, you'll need to modify the `docker-compose.yml` to bind the port to your local machine.
For instance, instead of
```
expose:
- "80"
```
use
```
ports:
- "127.0.0.1:80:80"
```
and reverse proxy to `http://localhost:80`.
# Configuration
For development, I recommend setting environment variables with [direnv](https://direnv.net).
## `MIX_ENV=dev`
In `dev` mode, Cannery will listen for these environment variables on compile.
You can use the following environment variables to configure Cannery in
`docker-compose.yml`.
- `HOST`: External url to generate links with. Set these especially if you're
behind a reverse proxy. Defaults to `localhost`.
- `PORT`: External port for urls. Defaults to `443`.
- `DATABASE_URL`: Controls the database url to connect to. Defaults to
`ecto://postgres:postgres@localhost/cannery_dev`.
- `REGISTRATION`: Controls if user sign-up should be invite only or set to public. Set to `public` to enable public registration. Defaults to `invite`.
## `MIX_ENV=prod`
In `prod` mode (or in the Docker container), Cannery will listen for these environment variables at runtime.
- `HOST`: External url to generate links with. Set these especially if you're
behind a reverse proxy. Defaults to `localhost`.
- `PORT`: Internal port to bind to. Defaults to `4000` and attempts to bind to
- `PORT`: Internal port to bind to. Defaults to `80` and attempts to bind to
`0.0.0.0`. Must be reverse proxied!
- `DATABASE_URL`: Controls the database url to connect to. Defaults to
`ecto://postgres:postgres@cannery-db/cannery`.
@ -54,10 +50,17 @@ In `prod` mode (or in the Docker container), Cannery will listen for these envir
Defaults to `false`.
- `POOL_SIZE`: Controls the pool size to use with PostgreSQL. Defaults to `10`.
- `SECRET_KEY_BASE`: Secret key base used to sign cookies. Must be generated
with `mix phx.gen.secret` and set for server to start.
with `docker exec -it cannery mix phx.gen.secret` and set for server to start.
- `REGISTRATION`: Controls if user sign-up should be invite only or set to public. Set to `public` to enable public registration. Defaults to `invite`.
---
# Contribution
Contributions are greatly appreciated! You can browse the [Contribution Guide](CONTRIBUTING.md) to learn more.
I can be contacted at [shibao@bubbletea.dev](mailto:shibao@bubbletea.dev), or on
the fediverse at [@shibao@misskey.bubbletea.dev](https://misskey.bubbletea.dev/@shibao). Thank you!
--
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