Merge pull request #30 from DeterminateSystems/stable-nix-command

Remove the `nix-command` experimental feature

doc/manual/generate-manpage.nix

@@ -36,11 +36,6 @@ let
     let
 
       result = ''
-        > **Warning** \
-        > This program is
-        > [**experimental**](@docroot@/contributing/experimental-features.md#xp-feature-nix-command)
-        > and its interface is subject to change.
-
         # Name
 
         `${command}` - ${details.description}

doc/manual/local.mk

@@ -35,7 +35,7 @@ dummy-env = env -i \
 	NIX_STATE_DIR=/dummy \
 	NIX_CONFIG='cores = 0'
 
-nix-eval = $(dummy-env) $(doc_nix) eval --experimental-features nix-command -I nix=doc/manual --store dummy:// --impure --raw
+nix-eval = $(dummy-env) $(doc_nix) eval -I nix=doc/manual --store dummy:// --impure --raw
 
 # re-implement mdBook's include directive to make it usable for terminal output and for proper @docroot@ substitution
 define process-includes
@@ -121,7 +121,7 @@ $(d)/nix.json: $(doc_nix)
 	@mv $@.tmp $@
 
 $(d)/conf-file.json: $(doc_nix)
-	$(trace-gen) $(dummy-env) $(doc_nix) config show --json --experimental-features nix-command > $@.tmp
+	$(trace-gen) $(dummy-env) $(doc_nix) config show --json > $@.tmp
 	@mv $@.tmp $@
 
 $(d)/src/contributing/experimental-feature-descriptions.md: $(d)/xp-features.json $(d)/utils.nix $(d)/generate-xp-features.nix $(doc_nix)

doc/manual/src/contributing/hacking.md

@@ -14,11 +14,6 @@ The following instructions assume you already have some version of Nix installed
 
 ## Building Nix with flakes
 
-This section assumes you are using Nix with the experimental feature [`nix-command`] enabled.
-See the [Building Nix](#building-nix) section for equivalent instructions using stable Nix interfaces.
-
-[`nix-command`]: @docroot@/contributing/experimental-features.md#xp-nix-command
-
 To build all dependencies and start a shell in which all environment variables are set up so that those dependencies can be found:
 
 ```console
@@ -105,7 +100,7 @@ nix (Nix) 2.12
 To build a release version of Nix for the current operating system and CPU architecture:
 
 ```console
-$ nix-build
+$ nix build
 ```
 
 You can also build Nix for one of the [supported platforms](#platforms).
@@ -155,12 +150,6 @@ platform. Common solutions include [remote build machines] and [binary format em
 Given such a setup, executing the build only requires selecting the respective attribute.
 For example, to compile for `aarch64-linux`:
 
-```console
-$ nix-build --attr packages.aarch64-linux.default
-```
-
-or for Nix with the [`flakes`] and [`nix-command`] experimental features enabled:
-
 ```console
 $ nix build .#packages.aarch64-linux.default
 ```
@@ -242,20 +231,12 @@ To build with one of those environments, you can use
 $ nix build .#nix-ccacheStdenv
 ```
 
-for flake-enabled Nix, or
-
-```console
-$ nix-build --attr nix-ccacheStdenv
-```
-
-for classic Nix.
-
 You can use any of the other supported environments in place of `nix-ccacheStdenv`.
 
 ## Editor integration
 
 The `clangd` LSP server is installed by default on the `clang`-based `devShell`s.
-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).
+See [supported compilation environments](#compilation-environments) and instructions how to [set up a shell with flakes](#nix-with-flakes).
 
 To use the LSP with your editor, you first need to [set up `clangd`](https://clangd.llvm.org/installation#project-setup) by running:
 

doc/manual/src/protocols/json/derivation.md

@@ -1,11 +1,5 @@
 # Derivation JSON Format
 
-> **Warning**
->
-> This JSON format is currently
-> [**experimental**](@docroot@/contributing/experimental-features.md#xp-feature-nix-command)
-> and subject to change.
-
 The JSON serialization of a
 [derivations](@docroot@/glossary.md#gloss-store-derivation)
 is a JSON object with the following fields:

doc/manual/src/protocols/json/store-object-info.md

@@ -1,11 +1,5 @@
 # Store object info JSON format
 
-> **Warning**
->
-> This JSON format is currently
-> [**experimental**](@docroot@/contributing/experimental-features.md#xp-feature-nix-command)
-> and subject to change.
-
 Info about a [store object].
 
 * `path`: