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Did you know we recommend Node 12.x in our macOS setup docs? Neither did I. Let's stop doing that.
110 lines
3.5 KiB
Markdown
110 lines
3.5 KiB
Markdown
# Setting Up Development Dependencies on macOS
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You will need to install these tools on your machine:
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- Node.js
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- Yarn
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- Python 3
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- Xcode and Xcode Command Line Tools (Xcode -> Preferences -> Downloads)
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## Node.js
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Let's see if you have the right version of `node` installed. Open a terminal and run this command inside the Desktop source directory:
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```shellsession
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$ node -v
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```
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If you see an error about being unable to find `node`, that probably means you don't have any Node tools installed. You can download Node from the [Node.js website](https://nodejs.org/), install the package, and restart your shell.
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You can verify that your installed version matches the one currently used by GitHub Desktop by looking at [our .node-version file](https://github.com/desktop/desktop/blob/development/.node-version). Usually the same major version is enough but if you're running into problems building Desktop please try installing that exact version.
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### I need to use different versions of Node.js in different projects!
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We currently support these Node version managers: `nvm` and `asdf-nodejs`.
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#### Configuring `nvm`
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1. Install `nvm` using the instructions [here](https://github.com/creationix/nvm#install-script).
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2. Within the Desktop source directory, install version of Node.js it requires:
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```shellsession
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$ nvm install
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```
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3. Ensure you are running the right version:
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```shellsession
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$ nvm use
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```
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4. Verify you have the right version by running `node -v` again:
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```shellsession
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$ node -v
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```
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If you see any version number, you're good to go.
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#### Configuring `asdf-nodejs`
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`asdf` is a little more involved to install. Check out the instructions [here](https://github.com/asdf-vm/asdf) and [here](https://github.com/asdf-vm/asdf-nodejs) for more information.
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## Yarn
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Follow [this guide](https://yarnpkg.com/en/docs/install#mac-stable) to install
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a system-level `yarn`. GitHub Desktop uses a local version of `yarn`, but it
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needs a version on your `PATH` to bootstrap itself.
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This is important because `yarn` uses lock files to pin dependencies. If you
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find yourself changing packages, this will prevent mismatches in versions
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between machines.
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If you're not familiar with `yarn`, please read [this document](./working-with-packages.md)
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to help familiarize yourself with how to do the common package tasks that are
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relevant to Desktop.
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## Python
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macOS comes with Python pre-installed, and it happens to be the right version, so you're probably fine! But let's be sure. Open a terminal and run this command inside the Desktop source directory:
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```shellsession
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$ python3 --version
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```
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If you see the output `Python 3.9.x`, you're good to go!
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### I need to use different versions of Python in different projects!
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For this, we recommend [pyenv](https://github.com/pyenv/pyenv). (It's the only game in town.)
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1. Install pyenv according to [the instructions](https://github.com/pyenv/pyenv-installer#github-way-recommended).
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2. Within the Desktop source directory, install version of Python it requires:
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```shellsession
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pyenv install
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```
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3. Verify you have the right version by running `python3 --version` again:
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```shellsession
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$ python3 --version
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```
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If you see the output `Python 3.9.x`, you're good to go!
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## Xcode Command Line Tools
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Run this command to install the Xcode command line tools.
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```shellsession
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xcode-select --install
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```
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If you already have them, it'll say so!
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## Back to setup
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Once you've installed the necessary dependencies, head back to the [setup page](https://github.com/desktop/desktop/blob/development/docs/contributing/setup.md) to finish getting set up.
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