nix3-nar(1) General Commands Manual nix3-nar(1)

Warning
This program is experimental and its interface is subject to change.

nix nar - create or inspect NAR files

nix nar [option…] subcommand

where subcommand is one of the following:

nix nar provides several subcommands for creating and inspecting Nix Archives (NARs).

For the definition of the Nix Archive file format, see within the protocols chapter of the manual.

•
--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.

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Consider all previously downloaded files out-of-date.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