2023-01-30 11:32:23 +02:00
# Release X.Y (202?-??-??)
2023-02-11 20:00:05 +02:00
* Commands which take installables on the command line can now read them from the standard input if
passed the `--stdin` flag. This is primarily useful when you have a large amount of paths which
exceed the OS arg limit.
2023-03-02 20:20:51 +02:00
2023-03-15 18:33:58 +02:00
* The `nix-hash` command now supports Base64 and SRI. Use the flags `--base64`
or `--sri` to specify the format of output hash as Base64 or SRI, and `--to-base64`
or `--to-sri` to convert a hash to Base64 or SRI format, respectively.
As the choice of hash formats is no longer binary, the `--base16` flag is also added
to explicitly specify the Base16 format, which is still the default.
Get rid of `.drv` special-casing for store path installables
The release notes document the change in behavior, I don't include it
here so there is no risk to it getting out of sync.
> Motivation
>> Plumbing CLI should be simple
Store derivation installations are intended as "plumbing": very simple
utilities for advanced users and scripts, and not what regular users
interact with. (Similarly, regular Git users will use branch and tag
names not explicit hashes for most things.)
The plumbing CLI should prize simplicity over convenience; that is its
raison d'etre. If the user provides a path, we should treat it the same
way not caring what sort of path it is.
>> Scripting
This is especially important for the scripting use-case. when arbitrary
paths are sent to e.g. `nix copy` and the script author wants consistent
behavior regardless of what those store paths are. Otherwise the script
author needs to be careful to filter out `.drv` ones, and then run `nix
copy` again with those paths and `--derivation`. That is not good!
>> Surprisingly low impact
Only two lines in the tests need changing, showing that the impact of
this is pretty light.
Many command, like `nix log` will continue to work with just the
derivation passed as before. This because we used to:
- Special case the drv path and replace it with it's outputs (what this
gets rid of).
- Turn those output path *back* into the original drv path.
Now we just skip that entire round trip!
> Context
Issue #7261 lays out a broader vision for getting rid of `--derivation`,
and has this as one of its dependencies. But we can do this with or
without that.
`Installable::toDerivations` is changed to handle the case of a
`DerivedPath::Opaque` ending in `.drv`, which is new: it simply doesn't
need to do any extra work in that case. On this basis, commands like
`nix {show-derivation,log} /nix/store/...-foo.drv` still work as before,
as described above.
When testing older daemons, the post-build-hook will be run against the
old CLI, so we need the old version of the post-build-hook to support
that use-case.
Co-authored-by: Travis A. Everett <travis.a.everett@gmail.com>
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2022-12-16 05:44:14 +02:00
* The special handling of an [installable ](../command-ref/new-cli/nix.md#installables ) with `.drv` suffix being interpreted as all of the given [store derivation ](../glossary.md#gloss-store-derivation )'s output paths is removed, and instead taken as the literal store path that it represents.
The new `^` syntax for store paths introduced in Nix 2.13 allows explicitly referencing output paths of a derivation.
Using this is better and more clear than relying on the now-removed `.drv` special handling.
For example,
```shell-session
$ nix path-info /nix/store/gzaflydcr6sb3567hap9q6srzx8ggdgg-glibc-2.33-78.drv
```
now gives info about the derivation itself, while
```shell-session
$ nix path-info /nix/store/gzaflydcr6sb3567hap9q6srzx8ggdgg-glibc-2.33-78.drv^*
```
2023-03-21 13:59:37 +02:00
provides information about each of its outputs.
2023-03-23 11:13:51 +02:00
* The experimental command `nix describe-stores` has been removed.
2023-03-23 16:27:06 +02:00
* Nix stores and their settings are now documented in [`nix help-stores` ](@docroot@/command-ref/new-cli/nix3-help-stores.md ).
2023-03-23 17:27:41 +02:00
* Documentation for operations of `nix-store` and `nix-env` are now available on separate pages of the manual.
They include all common options that can be specified and common environment variables that affect these commands.
These pages can be viewed offline with `man` using
* `man nix-store-<operation>` and `man nix-env-<operation>`
* `nix-store --help --<operation>` and `nix-env --help --<operation>` .
