Warning
This program is experimental ⟨@docroot@/development/experimental-features.md#xp-feature-nix-command⟩ and its interface is subject to change.
Name
nix registry pin - pin a flake to its current version or to the current version of a flake URL
Synopsis
nix registry pin [option…] url locked
Examples
- •
-
Pin
nixpkgsto its most recent Git revision:
# nix registry pin nixpkgs
-
Afterwards the user registry will have an entry like this:
nix registry list | grep '^user ' user flake:nixpkgs github:NixOS/nixpkgs/925b70cd964ceaedee26fde9b19cc4c4f081196a
-
and
nix flake metadatawill say:
# nix flake metadata nixpkgs Resolved URL: github:NixOS/nixpkgs/925b70cd964ceaedee26fde9b19cc4c4f081196a Locked URL: github:NixOS/nixpkgs/925b70cd964ceaedee26fde9b19cc4c4f081196a …
- •
-
Pin
nixpkgsin a custom registry to its most recent Git revision:
# nix registry pin --registry ./custom-flake-registry.json nixpkgs
Description
This command adds an entry to the user registry that maps flake reference url to the corresponding locked flake reference, that is, a flake reference that specifies an exact revision or content hash. This ensures that until this registry entry is removed, all uses of url will resolve to exactly the same flake.
Entries can be removed using nix registry remove ⟨./nix3-registry-remove.md⟩\c .
Options
- •
-
--registry⟨#opt-registry⟩ registry
-
The registry to operate on.
Common evaluation options
- •
-
--arg⟨#opt-arg⟩ name expr
-
Pass the value expr as the argument name to Nix functions.
- •
-
--arg-from-file⟨#opt-arg-from-file⟩ name path
-
Pass the contents of file path as the argument name to Nix functions.
- •
-
--arg-from-stdin⟨#opt-arg-from-stdin⟩ name
-
Pass the contents of stdin as the argument name to Nix functions.
- •
-
--argstr⟨#opt-argstr⟩ name string
-
Pass the string string as the argument name to Nix functions.
- •
-
--debugger⟨#opt-debugger⟩
-
Start an interactive environment if evaluation fails.
- •
-
--eval-store⟨#opt-eval-store⟩ store-url
-
The URL of the Nix store ⟨@docroot@/store/types/index.md#store-url-format⟩ to use for evaluation, i.e. to store derivations (
.drvfiles) and inputs referenced by them.
- •
-
--impure⟨#opt-impure⟩
-
Allow access to mutable paths and repositories.
- •
-
--include⟨#opt-include⟩ /-Ipath
-
Add path to search path entries used to resolve lookup paths ⟨@docroot@/language/constructs/lookup-path.md⟩
-
This option may be given multiple times.
-
Paths added through
-Itake precedence over thenix-pathconfiguration setting ⟨@docroot@/command-ref/conf-file.md#conf-nix-path⟩ and theNIX_PATHenvironment variable ⟨@docroot@/command-ref/env-common.md#env-NIX_PATH⟩\c .
- •
-
--override-flake⟨#opt-override-flake⟩ original-ref resolved-ref
-
Override the flake registries, redirecting original-ref to resolved-ref.
Logging-related options
- •
-
--debug⟨#opt-debug⟩
-
Set the logging verbosity level to ‘debug’.
- •
-
--log-format⟨#opt-log-format⟩ format
-
Set the format of log output; one of
raw,internal-json,barorbar-with-logs.
- •
-
--print-build-logs⟨#opt-print-build-logs⟩ /-L
-
Print full build logs on standard error.
- •
-
--quiet⟨#opt-quiet⟩
-
Decrease the logging verbosity level.
- •
-
--verbose⟨#opt-verbose⟩ /-v
-
Increase the logging verbosity level.
Miscellaneous global options
- •
-
--help⟨#opt-help⟩
-
Show usage information.
- •
-
--offline⟨#opt-offline⟩
-
Disable substituters and consider all previously downloaded files up-to-date.
- •
-
--option⟨#opt-option⟩ name value
-
Set the Nix configuration setting name to value (overriding
nix.conf).
- •
-
--refresh⟨#opt-refresh⟩
-
Consider all previously downloaded files out-of-date.
- •
-
--repair⟨#opt-repair⟩
-
During evaluation, rewrite missing or corrupted files in the Nix store. During building, rebuild missing or corrupted store paths.
- •
-
--version⟨#opt-version⟩
-
Show version information.
Note
See
man nix.conf⟨@docroot@/command-ref/conf-file.md#command-line-flags⟩ for overriding configuration settings with command line flags.