Nix (package manager)/zh-hans: Difference between revisions

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 === 配置文件（Profiles） ===
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+为了搭建一致的用户或系统环境，Nix将Nix存储的条目符号链接到''配置文件''。这是Nix允许回滚功能的前端：由于存储不可变，先前版本的配置文件被保留，恢复到更早的状态只需要改变符号链接到先前的配置文件。更精确地说，Nix将二进制文件符号链接到Nix存储中表示用户环境的条目。这些用户环境随之被符号链接到<code>/nix/var/nix/profiles</code>里被标记的配置文件，后者又被符号链接到该用户的<code>~/.nix-profile</code>。
-In order to construct a coherent user or system environment, Nix symlinks entries of the Nix store into ''profiles''. These are the front-end by which Nix allows rollbacks: since the store is immutable and previous versions of profiles are kept, reverting to an earlier state is simply a matter of change the symlink to a previous profile. To be more precise, Nix symlinks binaries into entries of the Nix store representing the user environments. These user environments are then symlinked into labeled profiles stored in <code>/nix/var/nix/profiles</code>, which are in turn symlinked to the user's <code>~/.nix-profile</code>.
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