nixcfg/cluster/prod/app/cryptpad/build/README.md

# CryptPad for NixOS with Deuxfleurs flavour

## Building

The `default.nix` file follows the nixpkgs `callPackage` convention for fetching dependencies, so you need to either:

- Run `nix-build --expr '{ ... }@args: (import <nixpkgs> {}).callPackage ./default.nix args'`
- Do the `callPackage from a higher-level directory importing your package`

### Docker

The `docker.nix` derives into a Docker image you can load simply by running:

```shell
docker load -i $(nix-build docker.nix)
```

You can then test the built Docker image using the provided `docker-compose.yml` and `config.js` files, which are
configured to render the instance accessible at `http://localhost:3000` with data stored into the `_data` folder.


### Deuxfleurs flavour
The `deuxfleurs.nix` file derives into two derivations: The CryptPad derivation itself and a Docker image,
which can be choose by passing the `-A [name]` flags to `nix-build`

For example, to build and load the Deuxfleurs-flavoured CryptPad Docker image, you run:

```shell
docker load -i $(nix-build deuxfleurs.nix -A docker)
```

## OnlyOffice integration
Apart for `deuxfleurs.nix`, both `default.nix` and `docker.nix` files build CryptPad with a copy of OnlyOffice pre-built and
used by CryptPad, which can result to large Docker image (~2.6GiB)

This behaviour is configurable by passing the `--arg withOnlyOffice false` flag to `nix-build` when building them.

## Updating the Deuxfleurs pinned nixpkgs
The pinned sources files are generated with the [niv](https://github.com/nmattia/niv) tool.

To update the pinned nixpkgs, you simply run the following command:

```shell
niv update
```

To modify the pinned nixpkgs, you can use the `niv modify` command, for example, to move to nixpkgs-unstable:

```shell
niv modify nixpkgs -b nixos-unstable
```

## Quirks

- The CryptPad `package-lock.json` is included here because the upstream-provided one appeared to be desync'ed, so a
    manual lockfile generation was needed