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   description = "A very basic flake";
   description = "A very basic flake";


inputs = {
  inputs = {
     nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
     nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
   };
   };


outputs = { self, nixpkgs }: {
  outputs = { self, nixpkgs }: {
 
    packages.x86_64-linux = {
packages.x86_64-linux.hello = nixpkgs.legacyPackages.x86_64-linux.hello;
      default = self.packages.x86_64-linux.hello;
 
      hello = nixpkgs.legacyPackages.x86_64-linux.hello;
packages.x86_64-linux.default = self.packages.x86_64-linux.hello;
    };
 
   };
   };
}</nowiki>|name=flake.nix|lang=nix}}
}</nowiki>|name=flake.nix|lang=nix}}
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=== Nix 配置 ===
=== Nix 配置 ===


<div lang="en" dir="ltr" class="mw-content-ltr">
为了推导 flake，您可以覆盖 <code>nix.conf</code> 文件中设置的全局 Nix 配置。例如，这可用于设置特定项目的二进制缓存源，同时保持全局配置不变。Flake 文件中可包含一个 nixConfig 属性，并在其中设置相关配置。例如，启用 nix-community 二进制缓存可以通过以下方式实现：
It is possible to override the global Nix configuration set in your <code>nix.conf</code> file for the purposes of evaluating a flake. This can be useful, for example, for setting up binary caches specific to certain projects, while keeping the global configuration untouched. The flake file can contain a nixConfig attribute with any relevant configuration settings supplied. For example, enabling the nix-community binary cache would be achieved by:
</div>


{{File|3=<nowiki>{
{{File|3=<nowiki>{
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}</nowiki>|name=flake.nix|lang=nix}}
}</nowiki>|name=flake.nix|lang=nix}}


<div lang="en" dir="ltr" class="mw-content-ltr">
{{Note|如果您习惯通过 NixOS 配置来设置 Nix 配置，则这些选项位于 <code>nix.settings</code> 下，而不是 <code>nix</code> 下。例如，您无法在 <code>nix.optimization.enable</code> 下指定自动存储优化。}}
{{Note|If you are used to configuring your Nix settings via the NixOS configuration, these options are under <code>nix.settings</code> and not <code>nix</code>. For example, you cannot specify the automatic storage optimisation under <code>nix.optimisation.enable</code>.}}
</div>


<span id="Setup"></span>
<span id="Setup"></span>
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<span id="The_nix_flakes_command"></span>
<span id="The_nix_flakes_command"></span>
<div class="mw-translate-fuzzy">
=== Nix Flakes 命令 ===
=== Nix Flakes 命令 ===
{{Main|Nix (command)}}
</div>


{{Main|Nix (command)}}
{{Main|Nix (command)}}
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<code>inputs.nixpkgs.url = "github:NixOS/nixpkgs/<branch name>";</code>
<code>inputs.nixpkgs.url = "github:NixOS/nixpkgs/<branch name>";</code>


<div lang="en" dir="ltr" class="mw-content-ltr">
Nixpkgs 也可以指向一个由 NixOS 组织缓存的 URL：
Nixpkgs can alternatively also point to an url cached by the NixOS organization:
</div>


<code>inputs.nixpkgs.url = "<nowiki>https://nixos.org/channels/nixpkgs-unstable/nixexprs.tar.xz</nowiki>";</code>
<code>inputs.nixpkgs.url = "<nowiki>https://nixos.org/channels/nixpkgs-unstable/nixexprs.tar.xz</nowiki>";</code>


<div lang="en" dir="ltr" class="mw-content-ltr">
在此示例中，输入将指向 <code>nixpkgs-unstable</code> 频道（channel）。
In this example the input would point to the `nixpkgs-unstable` channel.
</div>


对于任何包含 flake.nix 文件的仓库，其所属网站也必须被定义。Nix 知道 nixpkgs 仓库的位置，因此没有必要声明它在 GitHub 上。
对于任何包含 flake.nix 文件的仓库，其所属网站也必须被定义。Nix 知道 nixpkgs 仓库的位置，因此没有必要声明它在 GitHub 上。
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{{references}}
{{references}}


<div class="mw-translate-fuzzy">
[[Category:Software|软件]]
{{references}}
[[Category:Nix|Nix]]
</div>
[[Category:Nix Language|Nix 语言]]
[[Category:Flakes|Flakes]]
Retrieved from "https://wiki.nixos.org/wiki/Flakes/zh"