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docs: document issue with direnv and nix-shell on macOS (#15990) #16015

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docs: document issue with direnv and nix-shell on macOS (#15990)
paulroub Jan 2, 2025
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make fmt
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checkout origin/main -- **/XAxis.tsx
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101 changes: 63 additions & 38 deletions docs/CONTRIBUTING.md
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Original file line number Diff line number Diff line change
Expand Up @@ -2,51 +2,61 @@

## Requirements

We recommend using the [Nix](https://nix.dev/) package manager as it makes any
pain related to maintaining dependency versions
[disappear](https://nixos.org/guides/how-nix-works). Once nix
[has been installed](https://nixos.org/download.html) the development
environment can be _manually instantiated_ through the `nix-shell` command:
<div class="tabs">

```shell
cd ~/code/coder
We recommend that you use [Nix](https://nix.dev/) package manager to
[maintain dependency versions](https://nixos.org/guides/how-nix-works).

# https://nix.dev/tutorials/declarative-and-reproducible-developer-environments
nix-shell
### Nix

...
copying path '/nix/store/3ms6cs5210n8vfb5a7jkdvzrzdagqzbp-iana-etc-20210225' from 'https://cache.nixos.org'...
copying path '/nix/store/dxg5aijpyy36clz05wjsyk90gqcdzbam-iana-etc-20220520' from 'https://cache.nixos.org'...
copying path '/nix/store/v2gvj8whv241nj4lzha3flq8pnllcmvv-ignore-5.2.0.tgz' from 'https://cache.nixos.org'...
...
```
1. [Install Nix](https://nix.dev/install-nix#install-nix)

If [direnv](https://direnv.net/) is installed and the
[hooks are configured](https://direnv.net/docs/hook.html) then the development
environment can be _automatically instantiated_ by creating the following
`.envrc`, thus removing the need to run `nix-shell` by hand!
1. After you've installed Nix, instantiate the development with the `nix-shell`
command:

```shell
cd ~/code/coder
echo "use nix" >.envrc
direnv allow
```
```shell
cd ~/code/coder

Now, whenever you enter the project folder,
[`direnv`](https://direnv.net/docs/hook.html) will prepare the environment for
you:
# https://nix.dev/tutorials/declarative-and-reproducible-developer-environments
nix-shell

```shell
cd ~/code/coder
...
copying path '/nix/store/3ms6cs5210n8vfb5a7jkdvzrzdagqzbp-iana-etc-20210225' from 'https:// cache.nixos.org'...
copying path '/nix/store/dxg5aijpyy36clz05wjsyk90gqcdzbam-iana-etc-20220520' from 'https:// cache.nixos.org'...
copying path '/nix/store/v2gvj8whv241nj4lzha3flq8pnllcmvv-ignore-5.2.0.tgz' from 'https://cache. nixos.org'...
...
```

direnv: loading ~/code/coder/.envrc
direnv: using nix
direnv: export +AR +AS +CC +CONFIG_SHELL +CXX +HOST_PATH +IN_NIX_SHELL +LD +NIX_BINTOOLS +NIX_BINTOOLS_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu +NIX_BUILD_CORES +NIX_BUILD_TOP +NIX_CC +NIX_CC_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu +NIX_CFLAGS_COMPILE +NIX_ENFORCE_NO_NATIVE +NIX_HARDENING_ENABLE +NIX_INDENT_MAKE +NIX_LDFLAGS +NIX_STORE +NM +NODE_PATH +OBJCOPY +OBJDUMP +RANLIB +READELF +SIZE +SOURCE_DATE_EPOCH +STRINGS +STRIP +TEMP +TEMPDIR +TMP +TMPDIR +XDG_DATA_DIRS +buildInputs +buildPhase +builder +cmakeFlags +configureFlags +depsBuildBuild +depsBuildBuildPropagated +depsBuildTarget +depsBuildTargetPropagated +depsHostHost +depsHostHostPropagated +depsTargetTarget +depsTargetTargetPropagated +doCheck +doInstallCheck +mesonFlags +name +nativeBuildInputs +out +outputs +patches +phases +propagatedBuildInputs +propagatedNativeBuildInputs +shell +shellHook +stdenv +strictDeps +system ~PATH
1. Optional: If you have [direnv](https://direnv.net/) installed with
[hooks configured](https://direnv.net/docs/hook.html), you can add `use nix`
to `.envrc` to automatically instantiate the development environment:

🎉
```
```shell
cd ~/code/coder
echo "use nix" >.envrc
direnv allow
```

Now, whenever you enter the project folder,
[`direnv`](https://direnv.net/docs/hook.html) will prepare the environment
for you:

```shell
cd ~/code/coder

direnv: loading ~/code/coder/.envrc
direnv: using nix
direnv: export +AR +AS +CC +CONFIG_SHELL +CXX +HOST_PATH +IN_NIX_SHELL +LD +NIX_BINTOOLS +NIX_BINTOOLS_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu +NIX_BUILD_CORES +NIX_BUILD_TOP +NIX_CC +NIX_CC_WRAPPER_TARGET_HOST_x86_64_unknown_linux_gnu +NIX_CFLAGS_COMPILE +NIX_ENFORCE_NO_NATIVE +NIX_HARDENING_ENABLE +NIX_INDENT_MAKE +NIX_LDFLAGS +NIX_STORE +NM +NODE_PATH +OBJCOPY +OBJDUMP +RANLIB +READELF +SIZE +SOURCE_DATE_EPOCH +STRINGS +STRIP +TEMP +TEMPDIR +TMP +TMPDIR +XDG_DATA_DIRS +buildInputs +buildPhase +builder +cmakeFlags +configureFlags +depsBuildBuild +depsBuildBuildPropagated +depsBuildTarget +depsBuildTargetPropagated +depsHostHost +depsHostHostPropagated +depsTargetTarget +depsTargetTargetPropagated +doCheck +doInstallCheck +mesonFlags +name +nativeBuildInputs +out +outputs +patches +phases +propagatedBuildInputs +propagatedNativeBuildInputs +shell +shellHook +stdenv +strictDeps +system ~PATH

🎉
```

Alternatively if you do not want to use nix then you'll need to install the need
- If you encounter a `creating directory` error on macOS, check the
[troubleshooting](#troubleshooting) section below.

### Without Nix

Alternatively if you do not want to use Nix then you'll need to install the need
the following tools by hand:

- Go 1.18+
Expand All @@ -73,7 +83,9 @@ the following tools by hand:
- `pandoc`
- on macOS, run `brew install pandocomatic`

### Development workflow
</div>

## Development workflow

Use the following `make` commands and scripts in development:

Expand Down Expand Up @@ -203,8 +215,7 @@ This helps in naming the dump (e.g. `000069` above).

### Documentation

Our style guide for authoring documentation can be found
[here](./contributing/documentation.md).
Visit our [documentation style guide](./contributing/documentation.md).

### Backend

Expand Down Expand Up @@ -334,3 +345,17 @@ The
[`release/experimental`](https://github.com/coder/coder/issues?q=sort%3Aupdated-desc+label%3Arelease%2Fexperimental)
label can be used to move the note to the bottom of the release notes under a
separate title.

## Troubleshooting

### Nix on macOS: `error: creating directory`

On macOS, a [direnv bug](https://github.com/direnv/direnv/issues/1345) can cause
`nix-shell` to fail to build or run `coder`. If you encounter
`error: creating directory` when you attempt to run, build, or test, add a
`mkdir` line to your `.envrc`:

```shell
use nix
mkdir -p "$TMPDIR"
```
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