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Fix 2.4 migration examples

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This commit is contained in:
Eelco Dolstra 2021-11-01 22:44:07 +01:00
parent 888771b4b2
commit 6a93e186f4
1 changed files with 21 additions and 7 deletions
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28
doc/manual/src/release-notes/rl-2.4.md
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@ -281,7 +281,9 @@ more than 2800 commits from 195 contributors since release 2.3.
* The `nix` command is now marked as an experimental feature. This * The `nix` command is now marked as an experimental feature. This
means that you need to add means that you need to add
> experimental-features = nix-command ```
experimental-features = nix-command
```
to your `nix.conf` if you want to use it, or pass to your `nix.conf` if you want to use it, or pass
`--extra-experimental-features nix-command` on the command line. `--extra-experimental-features nix-command` on the command line.
@ -289,30 +291,42 @@ more than 2800 commits from 195 contributors since release 2.3.
* The `nix` command no longer has a syntax for referring to packages * The `nix` command no longer has a syntax for referring to packages
in a channel. This means that the following no longer works: in a channel. This means that the following no longer works:
> nix build nixpkgs.hello # Nix 2.3 ```console
nix build nixpkgs.hello # Nix 2.3
```
Instead, you can either use the `#` syntax to select a package from Instead, you can either use the `#` syntax to select a package from
a flake, e.g. a flake, e.g.
> nix build nixpkgs#hello ```console
nix build nixpkgs#hello
```
Or, if you want to use the `nixpkgs` channel in the `NIX_PATH` Or, if you want to use the `nixpkgs` channel in the `NIX_PATH`
environment variable: environment variable:
> nix build -f '<nixpkgs>' hello ```console
nix build -f '<nixpkgs>' hello
```
* The old `nix run` has been renamed to `nix shell`, while there is a * The old `nix run` has been renamed to `nix shell`, while there is a
new `nix run` that runs a default command. So instead of new `nix run` that runs a default command. So instead of
> nix run nixpkgs.hello -c hello # Nix 2.3 ```console
nix run nixpkgs.hello -c hello # Nix 2.3
```
you should use you should use
> nix shell nixpkgs#hello -c hello ```console
nix shell nixpkgs#hello -c hello
```
or just or just
> nix run nixpkgs#hello ```console
nix run nixpkgs#hello
```
if the command you want to run has the same name as the package. if the command you want to run has the same name as the package.