nix3-hash-path(1)

    Warning
    This program is experimental (@docroot@/development/experimental-features.md#xp-feature-nix-command) and its interface is subject to change.

Name

nix hash path - print cryptographic hash of the NAR serialisation of a path

Synopsis

nix hash path [option…] paths…

Options

•   --algo (#opt-algo) hash-algo

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

•   --base16 (#opt-base16)

    Print the hash in base-16 format.

•   --base32 (#opt-base32)

    Print the hash in base-32 (Nix-specific) format.

•   --base64 (#opt-base64)

    Print the hash in base-64 format.

•   --format (#opt-format) hash-format

    Hash format (base16, nix32, base64, sri). Default: sri.

•   --mode (#opt-mode) file-ingestion-method

    How to compute the hash of the input. One of:

    •   nar (the default): Serialises the input as a Nix Archive (@docroot@/store/file-system-object/content-address.md#serial-nix-archive) and passes that to the hash function.

    •   flat: Assumes that the input is a single file and directly passes (@docroot@/store/file-system-object/content-address.md#serial-flat) it to the hash function.

•   --sri (#opt-sri)

    Print the hash in SRI format.

•   --type (#opt-type) hash-algo

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

  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    Consider all previously downloaded files out-of-date.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.