nix3-hash-path1

Print cryptographic hash of the nar serialisation of a path

Usage

nix hash path [option…] paths…

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

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: Consider all previously downloaded files out-of-date.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

Releases

2 releases since Debian 12 (Bookworm); the text changed 1 time.