nix3-store-diff-closures(1) | General Commands Manual | nix3-store-diff-closures(1) |
Warning
This program is experimental and its interface is subject to
change.
Name
nix store diff-closures - show what packages and versions were added and removed between two closures
Synopsis
nix store diff-closures [option…] before after
Examples
- •
- Show what got added and removed between two versions of the NixOS system profile:
# nix store diff-closures /nix/var/nix/profiles/system-655-link /nix/var/nix/profiles/system-658-link acpi-call: 2020-04-07-5.8.16 → 2020-04-07-5.8.18 baloo-widgets: 20.08.1 → 20.08.2 bluez-qt: +12.6 KiB dolphin: 20.08.1 → 20.08.2, +13.9 KiB kdeconnect: 20.08.2 → ∅, -6597.8 KiB kdeconnect-kde: ∅ → 20.08.2, +6599.7 KiB …
Description
This command shows the differences between the two closures before and after with respect to the addition, removal, or version change of packages, as well as changes in store path sizes.
For each package name in the two closures (where a package name is defined as the name component of a store path excluding the version), if there is a change in the set of versions of the package, or a change in the size of the store paths of more than 8 KiB, it prints a line like this:
dolphin: 20.08.1 → 20.08.2, +13.9 KiB
No size change is shown if it’s below the threshold. If the package does not exist in either the before or after closures, it is represented using ∅ (empty set) on the appropriate side of the arrow. If a package has an empty version string, the version is rendered as ε (epsilon).
There may be multiple versions of a package in each closure. In that case, only the changed versions are shown. Thus,
libfoo: 1.2, 1.3 → 1.4
leaves open the possibility that there are other versions (e.g. 1.1) that exist in both closures.
Options
Common evaluation options
- •
- --arg name expr
- Pass the value expr as the argument name to Nix functions.
- •
- --arg-from-file name path
- Pass the contents of file path as the argument name to Nix functions.
- •
- --arg-from-stdin name
- Pass the contents of stdin as the argument name to Nix functions.
- •
- --argstr name string
- Pass the string string as the argument name to Nix functions.
- •
- --debugger
- Start an interactive environment if evaluation fails.
- •
- --eval-store store-url
- The URL of the Nix store to use for evaluation, i.e. to store derivations (.drv files) and inputs referenced by them.
- •
- --impure
- Allow access to mutable paths and repositories.
- •
- --include / -I path
- Add path to the Nix search path. The Nix search path is initialized from the colon-separated NIX_PATH environment variable, and is used to look up the location of Nix expressions using paths enclosed in angle brackets (i.e., <nixpkgs>).
- For instance, passing
-I /home/eelco/Dev -I /etc/nixos
- will cause Nix to look for paths relative to /home/eelco/Dev and /etc/nixos, in that order. This is equivalent to setting the NIX_PATH environment variable to
/home/eelco/Dev:/etc/nixos
- It is also possible to match paths against a prefix. For example, passing
-I nixpkgs=/home/eelco/Dev/nixpkgs-branch -I /etc/nixos
- will cause Nix to search for <nixpkgs/path> in /home/eelco/Dev/nixpkgs-branch/path and /etc/nixos/nixpkgs/path.
- If a path in the Nix search path starts with http:// or https://, it is interpreted as the URL of a tarball that will be downloaded and unpacked to a temporary location. The tarball must consist of a single top-level directory. For example, passing
-I nixpkgs=https://github.com/NixOS/nixpkgs/archive/master.tar.gz
- tells Nix to download and use the current contents of the master branch in the nixpkgs repository.
- The URLs of the tarballs from the official nixos.org channels (see the manual page for nix-channel) can be abbreviated as channel:<channel-name>. For instance, the following two flags are equivalent:
-I nixpkgs=channel:nixos-21.05 -I nixpkgs=https://nixos.org/channels/nixos-21.05/nixexprs.tar.xz
- You can also fetch source trees using flake URLs and add them to the search path. For instance,
-I nixpkgs=flake:nixpkgs
- specifies that the prefix nixpkgs shall refer to the source tree downloaded from the nixpkgs entry in the flake registry. Similarly,
-I nixpkgs=flake:github:NixOS/nixpkgs/nixos-22.05
- makes <nixpkgs> refer to a particular branch of the NixOS/nixpkgs repository on GitHub.
- •
- --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.
- DEPRECATED
- Use --no-use-registries instead.
- •
- --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.
- •
- --output-lock-file flake-lock-path
- Write the given lock file instead of flake.lock within the top-level flake.
- •
- --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.
- DEPRECATED
- Use nix flake update instead.
- •
- --reference-lock-file flake-lock-path
- Read the given lock file instead of flake.lock within the top-level flake.
- •
- --update-input input-path
- Update a specific flake input (ignoring its previous entry in the lock file).
- DEPRECATED
- Use nix flake update instead.
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.
- •
- --repair
- During evaluation, rewrite missing or corrupted files in the Nix store. During building, rebuild missing or corrupted store paths.
- •
- --version
- Show version information.
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. If file is the character -, then a Nix expression will be read from standard input. Implies --impure.
Note
See man nix.conf for overriding configuration settings with command line flags.