Name

       nix hash convert - convert between hash formats

Synopsis

       nix hash convert [option…] hashes…

Examples

       •  Convert a hash to nix32 (a base-32 encoding with a Nix-specific character set).

       $ nix hash convert --hash-algo sha1 --to nix32 800d59cfcd3c05e900cb4e214be48f6b886a08df
       vw46m23bizj4n8afrc0fj19wrp7mj3c0

       •  Convert a hash to the sri format that includes an algorithm specification:

       # nix hash convert --hash-algo sha1 800d59cfcd3c05e900cb4e214be48f6b886a08df
       sha1-gA1Zz808BekAy04hS+SPa4hqCN8=

              or with an explicit --to format:

       # nix hash convert --hash-algo sha1 --to sri 800d59cfcd3c05e900cb4e214be48f6b886a08df
       sha1-gA1Zz808BekAy04hS+SPa4hqCN8=

       •  Assert the input format of the hash:

       # nix hash convert --hash-algo sha256 --from nix32 ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=
       error: input hash 'ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=' does not have the expected format '--from nix32'

       # nix hash convert --hash-algo sha256 --from nix32 1b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s
       sha256-ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=

Description

       nix hash convert converts hashes from one encoding to another.

Options

       •  --from hash-format

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

       •  --hash-algo hash-algo

          Hash algorithm (md5, sha1, sha256, or sha512). Can be omitted for SRI hashes.

       •  --to hash-format

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

   Logging-related options
       •  --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.

       •  --verbose / -v

          Increase the logging verbosity level.

   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          Consider all previously downloaded files out-of-date.

       •  --version

          Show version information.

          Note

          See man nix.conf for overriding configuration settings with command line flags.

                                                                                            nix3-hash-convert(1)