Name

       nix store copy-log - copy build logs between Nix stores

Synopsis

       nix store copy-log [option…] installables…

Examples

       • To copy the build log of the hello package from https://cache.nixos.org to the local store:

       # nix store copy-log --from https://cache.nixos.org --eval-store auto nixpkgs#hello

              You can verify that the log is available locally:

       # nix log --substituters '' nixpkgs#hello

              (The flag --substituters '' avoids querying https://cache.nixos.org for the log.)

       • To copy the log for a specific store derivation via SSH:

       # nix store copy-log --to ssh-ng://machine /nix/store/ilgm50plpmcgjhcp33z6n4qbnpqfhxym-glibc-2.33-59.drv

Description

       nix  store  copy-log copies build logs between two Nix stores. The source store is specified using --from
       and the destination using --to. If one of these is omitted, it defaults to the local store.

Options

       • --from store-uri
         URL of the source Nix store.

       • --to store-uri
         URL of the destination Nix store.

       Common evaluation options:

       • --arg name expr
         Pass the value expr as the argument name to Nix functions.

       • --argstr name string
         Pass the string string as the argument name to Nix functions.

       • --eval-store store-url
         The Nix store to use for evaluations.

       • --impure
         Allow access to mutable paths and repositories.

       • --include / -I path
         Add path to the list of locations used to look up <...> file names.

       • --override-flake original-ref resolved-ref
         Override the flake registries, redirecting original-ref to resolved-ref.

       Common flake-related options:

       • --commit-lock-file
         Commit changes to the flake’s lock file.

       • --inputs-from flake-url
         Use the inputs of the specified flake as registry entries.

       • --no-registries
         Don’t allow lookups in the flake registries. This option is deprecated; use --no-use-registries.

       • --no-update-lock-file
         Do not allow any updates to the flake’s lock file.

       • --no-write-lock-file
         Do not write the flake’s newly generated lock file.

       • --override-input input-path flake-url
         Override a specific flake input (e.g. dwarffs/nixpkgs). This implies --no-write-lock-file.

       • --recreate-lock-file
         Recreate the flake’s lock file from scratch.

       • --update-input input-path
         Update a specific flake input (ignoring its previous entry in the lock file).

       Options that change the interpretation of installables:

       • --derivation
         Operate on the store derivation rather than its outputs.

       • --expr expr
         Interpret installables as attribute paths relative to the Nix expression expr.

       • --file / -f file
         Interpret installables as attribute paths relative to the Nix expression stored in file.

                                                                                          nix3-store-copy-log(1)