plucky (1) nix3-store-prefetch-file.1.gz

Name

       nix store prefetch-file - download a file into the Nix store

Synopsis

       nix store prefetch-file [option…] url

Examples

       •  Download a file to the Nix store:

       # nix store prefetch-file https://releases.nixos.org/nix/nix-2.3.10/nix-2.3.10.tar.xz
       Downloaded 'https://releases.nixos.org/nix/nix-2.3.10/nix-2.3.10.tar.xz' to
       '/nix/store/vbdbi42hgnc4h7pyqzp6h2yf77kw93aw-source' (hash
       'sha256-qKheVd5D0BervxMDbt+1hnTKE2aRWC8XCAwc0SeHt6s=').

       •  Download a file and get the SHA-512 hash:

       # nix store prefetch-file --json --hash-type sha512 \
         https://releases.nixos.org/nix/nix-2.3.10/nix-2.3.10.tar.xz \
       | jq -r .hash
       sha512-6XJxfym0TNH9knxeH4ZOvns6wElFy3uahunl2hJgovACCMEMXSy42s69zWVyGJALXTI+86tpDJGlIcAySEKBbA==

Description

       This command downloads the file url to the Nix store. It prints out the  resulting  store  path  and  the
       cryptographic hash of the contents of the file.

       The  name  component  of the store path defaults to the last component of url, but this can be overridden
       using --name.

Options

       •  --executable ⟨#opt-executable⟩

          Make the resulting file executable. Note that this causes the resulting hash to be a NAR  hash  rather
          than a flat file hash.

       •  --expected-hash ⟨#opt-expected-hash⟩ hash

          The expected hash of the file.

       •  --hash-type ⟨#opt-hash-type⟩ hash-algo

          Hash algorithm (md5, sha1, sha256, or sha512).

       •  --json ⟨#opt-json⟩

          Produce output in JSON format, suitable for consumption by another program.

       •  --name ⟨#opt-name⟩ name

          Override the name component of the resulting store path. It defaults to the base name of url.

       •  --unpack ⟨#opt-unpack⟩

          Unpack the archive (which must be a tarball or zip file) and add the result to the Nix store.

   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.

       •  --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.

                                                                                     nix3-store-prefetch-file(1)