nix3-flake...tch-inputs(1)

📦 version 2.35.3, in fedora 44

💖 nix3-flake...tch-inputs(1) 💖

okay bestie, so this is a page from the General Commands Manual — the nix flake prefetch-inputs one. yes the title got mangled by the terminal, no we're not fixing it, it's giving truncated legend energy, moving on ✨

Warning 🚨 This program is experimental and its interface is subject to change. so like, don't get attached to the exact flags, she's still figuring herself out 😭

🌸 Name 🌸

nix flake prefetch-inputs — fetch the inputs of a flake 🫶

✨ Synopsis ✨

nix flake prefetch-inputs [option…] flake-url

💅 Examples 💅

  1. Fetch the inputs of the hydra flake:
# nix flake prefetch-inputs github:NixOS/hydra

🦋 Description 🦋

Bestie, this one fetches the inputs of a flake. Why do we care? Because it makes sure they're already available for any subsequent evaluation of that flake. no more surprise downloading mid-evaluation, we love a girl who preps ahead 💖

And the way it works is recursive — it doesn't just grab the direct inputs of the top-level flake, it goes and gets the transitive inputs too. the entire family tree, invited, arrived, seated. 👑

🎀 Options 🎀

🌈 Common evaluation options 🌈

  • --arg name expr — passes the value expr as the argument name to Nix functions.
  • --arg-from-file name path — passes the contents of the file at path as the argument name to Nix functions.
  • --arg-from-stdin name — passes the contents of stdin as the argument name to Nix functions.
  • --argstr name string — passes the string string as the argument name to Nix functions.
  • --debugger — starts up an interactive environment if evaluation fails. (little rescue pod ✨)
  • --eval-store store-url — the URL of the Nix store to use for evaluation, i.e. to store derivations (.drv files) and the inputs referenced by them.
  • --impure — allows access to mutable paths and repositories. (she's a little unhinged, we respect it 🫶)
  • --include / -I path — adds path to the 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. iykyk, precedence matters 💅
  • --override-flake original-ref resolved-ref — overrides the flake registries, redirecting original-ref to resolved-ref.
  • --commit-lock-file — commit changes to the flake's lock file.
  • --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.
  • --no-update-lock-file — do not allow any updates to the flake's lock file.
  • --no-write-lock-file — do not write the flake's newly generated 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 — sets the logging verbosity level to debug.
  • --log-format format — sets the format of log output; one of raw, internal-json, bar or bar-with-logs.
  • --print-build-logs / -L — prints full build logs on standard error.
  • --quiet — decreases the logging verbosity level. (shhh 🤫)
  • --verbose / -v — increases the logging verbosity level.

👑 Miscellaneous global options 👑

  • --help — shows usage information.
  • --offline — disables substituters and considers all previously downloaded files up-to-date.
  • --option name value — sets the Nix configuration setting name to value (overriding nix.conf).
  • --refresh — considers all previously downloaded files out-of-date.
  • --repair — during evaluation, rewrites missing or corrupted files in the Nix store. During building, rebuilds missing or corrupted store paths.
  • --version — shows version information.
Note 📝 See man nix.conf for overriding configuration settings with command line flags.

and that's the whole page, bestie, no notes, ate and left no crumbs 🍓💜 this was nix3-flake...tch-inputs(1) from the General Commands Manual — ok bye, go fetch your inputs, you icon 💖✨🦋🎀

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