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Merge remote-tracking branch 'detsys-priv/detsys-main' into sync-2.24.2
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37 changed files with 41 additions and 178 deletions
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# Building Nix
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This section provides some notes on how to start hacking on Nix.
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To get the latest version of Nix from GitHub:
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```console
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$ git clone https://github.com/NixOS/nix.git
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$ cd nix
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```
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> **Note**
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>
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> The following instructions assume you already have some version of Nix installed locally, so that you can use it to set up the development environment.
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> If you don't have it installed, follow the [installation instructions](../installation/index.md).
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To build all dependencies and start a shell in which all environment variables are set up so that those dependencies can be found:
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```console
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$ nix-shell
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```
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To get a shell with one of the other [supported compilation environments](#compilation-environments):
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```console
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$ nix-shell --attr devShells.x86_64-linux.native-clangStdenvPackages
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```
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> **Note**
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>
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> You can use `native-ccacheStdenvPackages` to drastically improve rebuild time.
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> By default, [ccache](https://ccache.dev) keeps artifacts in `~/.cache/ccache/`.
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To build Nix itself in this shell:
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```console
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[nix-shell]$ autoreconfPhase
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[nix-shell]$ ./configure $configureFlags --prefix=$(pwd)/outputs/out
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[nix-shell]$ make -j $NIX_BUILD_CORES
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```
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To install it in `$(pwd)/outputs` and test it:
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```console
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[nix-shell]$ make install
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[nix-shell]$ make installcheck -j $NIX_BUILD_CORES
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[nix-shell]$ ./outputs/out/bin/nix --version
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nix (Nix) 2.12
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```
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To build a release version of Nix for the current operating system and CPU architecture:
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```console
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$ nix-build
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```
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You can also build Nix for one of the [supported platforms](#platforms).
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## Building Nix with flakes
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This section assumes you are using Nix with the [`nix-command`] experimental feature enabled.
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[`nix-command`]: @docroot@/development/experimental-features.md#xp-nix-command
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## Building Nix
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To build all dependencies and start a shell in which all environment variables are set up so that those dependencies can be found:
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@ -154,12 +92,6 @@ platform. Common solutions include [remote build machines] and [binary format em
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Given such a setup, executing the build only requires selecting the respective attribute.
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For example, to compile for `aarch64-linux`:
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```console
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$ nix-build --attr packages.aarch64-linux.default
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```
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or for Nix with the [`flakes`] and [`nix-command`] experimental features enabled:
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```console
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$ nix build .#packages.aarch64-linux.default
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```
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@ -241,20 +173,12 @@ To build with one of those environments, you can use
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$ nix build .#nix-ccacheStdenv
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```
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for flake-enabled Nix, or
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```console
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$ nix-build --attr nix-ccacheStdenv
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```
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for classic Nix.
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You can use any of the other supported environments in place of `nix-ccacheStdenv`.
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## Editor integration
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The `clangd` LSP server is installed by default on the `clang`-based `devShell`s.
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See [supported compilation environments](#compilation-environments) and instructions how to set up a shell [with flakes](#nix-with-flakes) or in [classic Nix](#classic-nix).
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See [supported compilation environments](#compilation-environments) and instructions how to [set up a shell with flakes](#nix-with-flakes).
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To use the LSP with your editor, you first need to [set up `clangd`](https://clangd.llvm.org/installation#project-setup) by running:
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# Derivation JSON Format
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> **Warning**
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>
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> This JSON format is currently
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> [**experimental**](@docroot@/development/experimental-features.md#xp-feature-nix-command)
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> and subject to change.
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The JSON serialization of a
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[derivations](@docroot@/glossary.md#gloss-store-derivation)
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is a JSON object with the following fields:
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@ -1,11 +1,5 @@
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# Store object info JSON format
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> **Warning**
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>
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> This JSON format is currently
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> [**experimental**](@docroot@/development/experimental-features.md#xp-feature-nix-command)
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> and subject to change.
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Info about a [store object].
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* `path`:
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