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use nix-shell -p for dhall-to-nixpkgs example

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Valentin Gagarin 2023-09-25 17:00:55 +02:00 committed by fricklerhandwerk
parent 370097ce86
commit fba19509b1
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11
doc/languages-frameworks/dhall.section.md
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@ -303,11 +303,8 @@ You can use the `dhall-to-nixpkgs` command-line utility to automate
packaging Dhall code. For example:
```ShellSession
$ nix-env --install --attr haskellPackages.dhall-nixpkgs
$ nix-env --install --attr nix-prefetch-git # Used by dhall-to-nixpkgs
$ dhall-to-nixpkgs github https://github.com/Gabriella439/dhall-semver.git
$ nix-shell -p haskellPackages.dhall-nixpkgs nix-prefetch-git
[nix-shell]$ dhall-to-nixpkgs github https://github.com/Gabriella439/dhall-semver.git
{ buildDhallGitHubPackage, Prelude }:
buildDhallGitHubPackage {
name = "dhall-semver";
@ -325,6 +322,10 @@ $ dhall-to-nixpkgs github https://github.com/Gabriella439/dhall-semver.git
}
```
:::{.note}
`nix-prefetch-git` has to be in `$PATH` for `dhall-to-nixpkgs` to work.
:::
The utility takes care of automatically detecting remote imports and converting
them to package dependencies. You can also use the utility on local
Dhall directories, too: