mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-15 18:56:16 +02:00
eb7d7780b1
This is needed to avoid this https://github.com/mesonbuild/meson/issues/13774 when we go back to making our subproject directory `src`.
94 lines
3.3 KiB
Markdown
94 lines
3.3 KiB
Markdown
# Name
|
||
|
||
`nix-store --realise` - build or fetch store objects
|
||
|
||
# Synopsis
|
||
|
||
`nix-store` {`--realise` | `-r`} *paths…* [`--dry-run`]
|
||
|
||
# Description
|
||
|
||
|
||
Each of *paths* is processed as follows:
|
||
|
||
- If the path leads to a [store derivation]:
|
||
1. If it is not [valid], substitute the store derivation file itself.
|
||
2. Realise its [output paths]:
|
||
- Try to fetch from [substituters] the [store objects] associated with the output paths in the store derivation's [closure].
|
||
- With [content-addressed derivations] (experimental):
|
||
Determine the output paths to realise by querying content-addressed realisation entries in the [Nix database].
|
||
- For any store paths that cannot be substituted, produce the required store objects:
|
||
1. Realise all outputs of the derivation's dependencies
|
||
2. Run the derivation's [`builder`](@docroot@/language/derivations.md#attr-builder) executable
|
||
<!-- TODO: Link to build process page #8888 -->
|
||
- Otherwise, and if the path is not already valid: Try to fetch the associated [store objects] in the path's [closure] from [substituters].
|
||
|
||
If no substitutes are available and no store derivation is given, realisation fails.
|
||
|
||
[store paths]: @docroot@/store/store-path.md
|
||
[valid]: @docroot@/glossary.md#gloss-validity
|
||
[store derivation]: @docroot@/glossary.md#gloss-store-derivation
|
||
[output paths]: @docroot@/glossary.md#gloss-output-path
|
||
[store objects]: @docroot@/store/store-object.md
|
||
[closure]: @docroot@/glossary.md#gloss-closure
|
||
[substituters]: @docroot@/command-ref/conf-file.md#conf-substituters
|
||
[content-addressed derivations]: @docroot@/development/experimental-features.md#xp-feature-ca-derivations
|
||
[Nix database]: @docroot@/glossary.md#gloss-nix-database
|
||
|
||
The resulting paths are printed on standard output.
|
||
For non-derivation arguments, the argument itself is printed.
|
||
|
||
{{#include ../status-build-failure.md}}
|
||
|
||
# Options
|
||
|
||
- `--dry-run`
|
||
|
||
Print on standard error a description of what packages would be
|
||
built or downloaded, without actually performing the operation.
|
||
|
||
- `--ignore-unknown`
|
||
|
||
If a non-derivation path does not have a substitute, then silently
|
||
ignore it.
|
||
|
||
- `--check`
|
||
|
||
This option allows you to check whether a derivation is
|
||
deterministic. It rebuilds the specified derivation and checks
|
||
whether the result is bitwise-identical with the existing outputs,
|
||
printing an error if that’s not the case. The outputs of the
|
||
specified derivation must already exist. When used with `-K`, if an
|
||
output path is not identical to the corresponding output from the
|
||
previous build, the new output path is left in
|
||
`/nix/store/name.check.`
|
||
|
||
{{#include ./opt-common.md}}
|
||
|
||
{{#include ../opt-common.md}}
|
||
|
||
{{#include ../env-common.md}}
|
||
|
||
# Examples
|
||
|
||
This operation is typically used to build [store derivation]s produced by
|
||
[`nix-instantiate`](@docroot@/command-ref/nix-instantiate.md):
|
||
|
||
```console
|
||
$ nix-store --realise $(nix-instantiate ./test.nix)
|
||
/nix/store/31axcgrlbfsxzmfff1gyj1bf62hvkby2-aterm-2.3.1
|
||
```
|
||
|
||
This is essentially what [`nix-build`](@docroot@/command-ref/nix-build.md) does.
|
||
|
||
To test whether a previously-built derivation is deterministic:
|
||
|
||
```console
|
||
$ nix-build '<nixpkgs>' --attr hello --check -K
|
||
```
|
||
|
||
Use [`nix-store --read-log`](./read-log.md) to show the stderr and stdout of a build:
|
||
|
||
```console
|
||
$ nix-store --read-log $(nix-instantiate ./test.nix)
|
||
```
|