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nix/doc/manual/source/command-ref/nix-store/add-fixed.md
Robert Hensing 91e91f62fa doc: Document nix-store --add-fixed symlink behavior 
Tested with

    nix run nix/2.3-maintenance#nix-store -- --add some_symlink
    nix run nix/2.3-maintenance#nix-store -- --add-fixed sha256 --recursive some_symlink
2025-01-07 05:42:03 +00:00

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Name

nix-store --add-fixed - add paths to store using given hashing algorithm

Synopsis

nix-store --add-fixed [--recursive] algorithm paths…

Description

The operation --add-fixed adds the specified paths to the Nix store. Unlike --add paths are registered using the specified hashing algorithm, resulting in the same output path as a fixed-output derivation. This can be used for sources that are not available from a public url or broke since the download expression was written.

This operation has the following options:

  • --recursive

    Use recursive instead of flat hashing mode, used when adding directories to the store.

    paths that refer to symlinks are not dereferenced, but added to the store as symlinks with the same target.

{{#include ./opt-common.md}}

{{#include ../opt-common.md}}

{{#include ../env-common.md}}

Example

$ nix-store --add-fixed sha256 ./hello-2.10.tar.gz
/nix/store/3x7dwzq014bblazs7kq20p9hyzz0qh8g-hello-2.10.tar.gz