diff --git a/docs/nix_dev_env.md b/docs/nix_dev_env.md index 3729549d6..ada0a4b1c 100644 --- a/docs/nix_dev_env.md +++ b/docs/nix_dev_env.md @@ -1,119 +1,134 @@ # Motivation We use Nix to package all of the dependencies for our dev environment. It does several things for us: - Enables new devs on macOS or Linux to set up our dev environment with just one command - Makes sure that everybody on the team is using the same versions of all the tools - Allows us to isolate development dependencies from affecting the host system For how Nix package management works, please refer to the official [how Nix works guide](https://nixos.org/guides/how-nix-works.html). # Supported workflows Some workflows require additional steps after the Nix installation. These steps are documented in [Workflow prerequisites](#workflow-prerequisites). | Workflow | macOS supported | | ------------------------------- | --------------- | | `keyserver` (Node.js) | ✅ | | `web` & `landing` (Webpack) | ✅ | | `native` iOS (React Native) | ✅ | | `native` Android (React Native) | ✅ | | C++ services | ❌ **\*** | | Rust services | ✅ | **\*** Workflow requires documentation; and it requires the RabbitMQ and AWS/Localstack services to be available. # Requirements To set up a dev environment using Nix, you will need a macOS or Linux machine. # Prerequisites ## Xcode Command Line Tools For developers using macOS, you need to make sure that the Xcode “Command Line Tools” are installed. You can do this by running: ``` xcode-select --install ``` ## Nix package manager To install and configure the [Nix package manager](https://nixos.org), please run: ``` # Pull down Git repository git clone git@github.com:CommE2E/comm.git cd comm # Install Nix and Comm binary cache ./scripts/install_nix.sh ``` Now either close and reopen your terminal window or re-source your shell configuration file in order to have changes applied. ## Install development dependencies As a first step, you’ll want to set up the JavaScript environment and pull in all necessary NPM packages. Run the following command: ``` # Create development shell nix develop # Install yarn dependencies yarn cleaninstall ``` ## Workflow specific prerequisites On macOS, [installing Xcode](./nix_mobile_setup.md#xcode) is a prerequisite for all workflows. - [Web prerequisites](./nix_web_setup.md#nix-web-requisities) - [React Dev Tools Chrome extension](./nix_web_setup.md#react-dev-tools-chrome-extension) - [Redux Dev Tools Chrome extension](./nix_web_setup.md#redux-dev-tools-chrome-extension) - [Mobile prerequisites](./nix_mobile_setup.md#nix-mobile-prerequisites) - [iOS development](./nix_mobile_setup.md#ios-development) - [Xcode](./nix_mobile_setup.md#xcode) - [Xcode settings](./nix_mobile_setup.md#xcode-settings) - [Android development](./nix_mobile_setup.md#android-development) - [JDK (Java Development Kit)](./nix_mobile_setup.md#jdk) - [Android Studio](./nix_mobile_setup.md#android-studio) - [Android SDK](./nix_mobile_setup.md#android-sdk) - [Android emulator](./nix_mobile_setup.md#android-emulator) - [Debugging tools](./nix_mobile_setup.md#debugging-tools) - [Homebrew](./nix_mobile_setup.md#homebrew) - [Reactotron](./nix_mobile_setup.md#reactotron) # Development environment Run `nix develop` to create a dev environment. Nix will handle the installation of all remaining dependencies not mentioned in [Workflow prerequisites](#workflow-prerequisites). ## Development workflows - [Web workflows](./nix_web_workflows.md#development) - [Flow typechecker](./nix_web_workflows.md#flow-typechecker) - [Running keysever](./nix_web_workflows.md#running-keyserver) - [Running web app](./nix_web_workflows.md#running-web-app) - [Running landing page](./nix_web_workflows.md#running-landing-page) - [Debugging](./nix_web_workflows.md#debugging) - [React Developer Tools](./nix_web_workflows.md#react-developer-tools) - [Redux Developer Tools](./nix_web_workflows.md#redux-developer-tools) - [Debugging JavaScript](./nix_web_workflows.md#debugging-javascript) - [Mobile workflows](./nix_mobile_workflows.md#mobile-workflows) - [Running mobile app on iOS Simulator](./nix_mobile_workflows.md#running-mobile-app-on-ios-simulator) - [Running mobile app on Android Emulator](./nix_mobile_workflows.md#running-mobile-app-on-android-emulator) - [Running mobile app on physical iOS devices](./nix_mobile_workflows.md#running-mobile-app-on-physical-ios-devices) - [Shared workflows](./nix_shared_workflows.md#shared-workflows) - [Inspect database with TablePlus](./nix_shared_workflows.md#inspect-database-with-tableplus) - [Codegen](./nix_shared_workflows.md#codegen) - [Codegen for JSI](./nix_shared_workflows.md#codegen-for-jsi) - [Working with Phabricator](./nix_shared_workflows.md#working-with-phabricator) - [Creating a new diff](./nix_shared_workflows.md#creating-a-new-diff) - [Updating a diff](./nix_shared_workflows.md#updating-a-diff) - [Working with a stack](./nix_shared_workflows.md#working-with-a-stack) - [Committing a diff](./nix_shared_workflows.md#committing-a-diff) - [Final notes](./nix_shared_workflows.md#final-notes) +## Using alternate shells with Nix + +Alternate shells such as zsh or fish can also be used with Nix. To use an alternate shell, run: + +```sh +nix develop -c $SHELL +``` + +You may also replace the bash shell with the shell of your preference. + +```sh +nix develop +exec zsh # or fish +``` + ## How Nix introduces dependencies to a development environment Nix installs packages in the Nix store at package-specific paths (e.g. `/nix/store/x7kdiasp...-clang/bin/clang`). When you run `nix develop`, Nix sets environment variables such as `PATH` to expose the binary dependencies to your shell. This model can be extended through shell hooks to support other build toolchains such as `pkg-config`, `cmake`, and many other language specific package managers by simply adding the respective toolchain to `nativeBuildInputs`.