nix3-flake-lock(1)

📦
version 2.35.3 · 11 versions
, in fedora 44

💅 nix3-flake-lock — General Commands Manual ✨

Warning bestie. listen. this program is experimental and its interface is subject to change. so like, don't build your whole personality on it. 💀

🎀 Name

nix flake lock — create missing lock file entries 🫶

🦋 Synopsis

nix flake lock [option…] flake-url

🌸 Examples

  1. Create the lock file for the flake in the current directory:
# nix flake lock
warning: creating lock file '/home/myself/repos/testflake/flake.lock':
• Added input 'nix':
  'github:NixOS/nix/9fab14adbc3810d5cc1f88672fde1eee4358405c' (2023-06-28)
• Added input 'nixpkgs':
  'github:NixOS/nixpkgs/3d2d8f281a27d466fa54b469b5993f7dde198375' (2023-06-30)
  1. Add missing inputs to the lock file for a flake in a different directory:
# nix flake lock ~/repos/another
warning: updating lock file '/home/myself/repos/another/flake.lock':
• Added input 'nixpkgs':
  'github:NixOS/nixpkgs/3d2d8f281a27d466fa54b469b5993f7dde198375' (2023-06-30)
Note When trying to refer to a flake in a subdirectory, write ./another instead of another. Otherwise Nix will try to look up the flake in the registry. no cap, this one trips everybody up fr fr 😭

💖 Description

This command updates the lock file of a flake (flake.lock) so that it contains an up-to-date lock for every flake input specified in flake.nix. Lock file entries that are already up-to-date are not modified. periodt. 👑

If you want to update existing lock entries, use nix flake update ✨

👑 Options

🌈 Common evaluation options

  • --arg name expr — Pass the value expr as the argument name to Nix functions.
  • --arg-from-file name path — Pass the contents of file path as the argument name to Nix functions.
  • --arg-from-stdin name — Pass the contents of stdin as the argument name to Nix functions.
  • --argstr name string — Pass the string string as the argument name to Nix functions.
  • --debugger — Start an interactive environment if evaluation fails. it's giving "let me poke around" 🔍
  • --eval-store store-url — The URL of the Nix store to use for evaluation, i.e. to store derivations (.drv files) and inputs referenced by them.
  • --impure — Allow access to mutable paths and repositories. living dangerously, love that for you 🙈
  • --include, -I path — Add path to search path entries used to resolve lookup paths.

This option may be given multiple times.

Paths added through -I take precedence over the nix-path configuration setting and the NIX_PATH environment variable. 💅

  • --override-flake original-ref resolved-ref — Override the flake registries, redirecting original-ref to resolved-ref.
  • --commit-lock-file — Commit changes to the flake's lock file. git girlies rise 🫶
  • --inputs-from flake-url — Use the inputs of the specified flake as registry entries.
  • --no-registries — Don't allow lookups in the flake registries.
DEPRECATED Use --no-use-registries instead. she's retired, respect her legacy 💀
  • --no-update-lock-file — Do not allow any updates to the flake's lock file.
  • --output-lock-file flake-lock-path — Write the given lock file instead of flake.lock within the top-level flake.
  • --override-input input-path flake-url — Override a specific flake input (e.g. dwarffs/nixpkgs). The input path must not be empty. This implies --no-write-lock-file.
  • --recreate-lock-file — Recreate the flake's lock file from scratch.
DEPRECATED Use nix flake update instead.
  • --reference-lock-file flake-lock-path — Read the given lock file instead of flake.lock within the top-level flake.
  • --update-input input-path — Update a specific flake input (ignoring its previous entry in the lock file).
DEPRECATED Use nix flake update instead.
  • --debug — Set the logging verbosity level to 'debug'.
  • --log-format format — Set the format of log output; one of raw, internal-json, bar or bar-with-logs.
  • --print-build-logs, -L — Print full build logs on standard error.
  • --quiet — Decrease the logging verbosity level. shhh 🤫
  • --verbose, -v — Increase the logging verbosity level. tell me EVERYTHING 😭

⭐ Miscellaneous global options

  • --help — Show usage information.
  • --offline — Disable substituters and consider all previously downloaded files up-to-date.
  • --option name value — Set the Nix configuration setting name to value (overriding nix.conf).
  • --refresh — Consider all previously downloaded files out-of-date.
  • --repair — During evaluation, rewrite missing or corrupted files in the Nix store. During building, rebuild missing or corrupted store paths.
  • --version — Show version information.
Note See man nix.conf for overriding configuration settings with command line flags. iykyk 💜

and that's the whole page bestie!! 🦋✨ this lil icon lives in the General Commands Manual as nix3-flake-lock(1) — go forth and lock those flakes, you absolute main character 💅👑💖

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