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nix-super/doc/manual/source/command-ref/nix-store/import.md

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Split nix-env and nix-store documentation per-subcommand Documentation on "classic" commands with many sub-commands are notoriously hard to discover due to lack of overview and anchor links. Additionally the information on common options and environment variables is not accessible offline in man pages, and therefore often overlooked by readers. With this change, each sub-command of nix-store and nix-env gets its own page in the manual (listed in the table of contents), and each own man page. Also, man pages for each subcommand now (again) list common options and environment variables. While this makes each page quite long and some common parameters don't apply, this should still make it easier to navigate as that additional information was not accessible on the command line at all. It is now possible to run 'nix-store --<subcommand> --help` to display help pages for the given subcommand. Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-03-23 17:27:41 +02:00
# Name
Document file system object content addressing In addition: - Take the opportunity to add a bunch more missing hyperlinks, too. - Remove some glossary entries that are now subsumed by dedicated pages. We used to not be able to do this without breaking link fragments, but now we can, so pick up where we left off. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2024-04-10 00:07:39 +03:00
`nix-store --import` - import [Nix Archive] into the store
[Nix Archive]: @docroot@/store/file-system-object/content-address.md#serial-nix-archive
Split nix-env and nix-store documentation per-subcommand Documentation on "classic" commands with many sub-commands are notoriously hard to discover due to lack of overview and anchor links. Additionally the information on common options and environment variables is not accessible offline in man pages, and therefore often overlooked by readers. With this change, each sub-command of nix-store and nix-env gets its own page in the manual (listed in the table of contents), and each own man page. Also, man pages for each subcommand now (again) list common options and environment variables. While this makes each page quite long and some common parameters don't apply, this should still make it easier to navigate as that additional information was not accessible on the command line at all. It is now possible to run 'nix-store --<subcommand> --help` to display help pages for the given subcommand. Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-03-23 17:27:41 +02:00
# Synopsis
`nix-store` `--import`
# Description
reword documentation on `nix-store --import` - add links to definitions of terms - one sentence per line - be more specific about which store is used for the import - clearly distinguish store paths and store objects - make a recommendation to use `nix-copy-closure` for efficient SSH transfers
2024-05-15 02:21:45 +03:00
The operation `--import` reads a serialisation of a set of [store objects](@docroot@/glossary.md#gloss-store-object) produced by [`nix-store --export`](./export.md) from standard input, and adds those store objects to the specified [Nix store](@docroot@/store/index.md).
Paths that already exist in the target Nix store are ignored.
If a path [refers](@docroot@/glossary.md#gloss-reference) 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`](@docroot@/command-ref/nix-copy-closure.md).
Split nix-env and nix-store documentation per-subcommand Documentation on "classic" commands with many sub-commands are notoriously hard to discover due to lack of overview and anchor links. Additionally the information on common options and environment variables is not accessible offline in man pages, and therefore often overlooked by readers. With this change, each sub-command of nix-store and nix-env gets its own page in the manual (listed in the table of contents), and each own man page. Also, man pages for each subcommand now (again) list common options and environment variables. While this makes each page quite long and some common parameters don't apply, this should still make it easier to navigate as that additional information was not accessible on the command line at all. It is now possible to run 'nix-store --<subcommand> --help` to display help pages for the given subcommand. Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-03-23 17:27:41 +02:00
{{#include ./opt-common.md}}
{{#include ../opt-common.md}}
{{#include ../env-common.md}}
add example to `nix-store --import` this also features specifying `--store` to give more pointers for discoverability
2024-05-15 02:11:14 +03:00
# Examples
> **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.closure
> ```
>
> Import the closure into a [remote SSH store](@docroot@/store/types/ssh-store.md) using the [`--store`](@docroot@/command-ref/conf-file.md#conf-store) option:
>
> ```console
> $ nix-store --import --store ssh://alice@itchy.example.org < hello.closure
> ```
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