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