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nix3-registry-pin(1)	    General Commands Manual	  nix3-registry-pin(1)

	      Warning
	      This  program  is	 experimental <../../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 nixpkgs to 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 metadata will say:

       # nix flake metadata nixpkgs
       Resolved	URL:  github:NixOS/nixpkgs/925b70cd964ceaedee26fde9b19cc4c4f081196a
       Locked URL:    github:NixOS/nixpkgs/925b70cd964ceaedee26fde9b19cc4c4f081196a

         Pin nixpkgs in 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	refer-
       ence  url to the	corresponding locked flake reference, that is, a flake
       reference that specifies	an exact revision or content  hash.  This  en-
       sures  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-re-
       move.md>.

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 func-
	  tions.

         --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	<../../store/types/index.md#store-url-
	  format>  to  use  for	 evaluation,  i.e.  to store derivations (.drv
	  files) and inputs referenced by them.

         --impure <#opt-impure>

	  Allow	access to mutable paths	and repositories.

         --include <#opt-include> / -I	path

	  Add path to  search  path  entries  used  to	resolve	 lookup	 paths
	  <../../language/constructs/lookup-path.md>

	  This option may be given multiple times.

	  Paths	 added through -I take precedence over the nix-path configura-
	  tion setting <../../command-ref/conf-file.md#conf-nix-path> and  the
	  NIX_PATH  environment	variable <../../command-ref/env-common.md#env-
	  NIX_PATH>.

         --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, bar or bar-
	  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 <../../command-ref/conf-file.md#command-line-flags>
	  for overriding configuration settings	with command line flags.

							  nix3-registry-pin(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=nix3-registry-pin&sektion=1&manpath=FreeBSD+Ports+15.0>

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