doc/manual/source/command-ref/nix-store/import.md
nix-store --import - import Nix Archive into the store
nix-store --import
The operation --import reads a serialisation of a set of store objects produced by nix-store --export from standard input, and adds those store objects to the specified Nix store.
Paths that already exist in the target Nix store are ignored.
If a path refers to another path that doesn’t exist in the target Nix store, the import fails.
Note
For efficient transfer of closures to remote machines over SSH, use
nix-copy-closure.
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Example
Given a closure of GNU Hello as a file:
shell-session$ storePath="$(nix-build '<nixpkgs>' -I nixpkgs=channel:nixpkgs-unstable -A hello --no-out-link)" $ nix-store --export $(nix-store --query --requisites $storePath) > hello.closureImport the closure into a remote SSH store using the
--storeoption:console$ nix-store --import --store ssh://[email protected] < hello.closure