diff options
Diffstat (limited to 'nixpkgs/doc/languages-frameworks/dhall.section.md')
| -rw-r--r-- | nixpkgs/doc/languages-frameworks/dhall.section.md | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/nixpkgs/doc/languages-frameworks/dhall.section.md b/nixpkgs/doc/languages-frameworks/dhall.section.md index 83567ab17ace..8d85c9f1daf7 100644 --- a/nixpkgs/doc/languages-frameworks/dhall.section.md +++ b/nixpkgs/doc/languages-frameworks/dhall.section.md @@ -187,6 +187,7 @@ wish to specify `source = true` for all Dhall packages, then you can amend the Dhall overlay like this: ```nix +{ dhallOverrides = self: super: { # Enable source for all Dhall packages buildDhallPackage = @@ -194,6 +195,7 @@ Dhall overlay like this: true = self.callPackage ./true.nix { }; }; +} ``` … and now the Prelude will contain the fully decoded result of interpreting @@ -429,22 +431,26 @@ $ dhall-to-nixpkgs github https://github.com/dhall-lang/dhall-lang.git \ the Prelude globally for all packages, like this: ```nix +{ dhallOverrides = self: super: { true = self.callPackage ./true.nix { }; Prelude = self.callPackage ./Prelude.nix { }; }; +} ``` … or selectively overriding the Prelude dependency for just the `true` package, like this: ```nix +{ dhallOverrides = self: super: { true = self.callPackage ./true.nix { Prelude = self.callPackage ./Prelude.nix { }; }; }; +} ``` ## Overrides {#ssec-dhall-overrides} @@ -454,11 +460,13 @@ You can override any of the arguments to `buildDhallGitHubPackage` or For example, suppose we wanted to selectively enable `source = true` just for the Prelude. We can do that like this: ```nix +{ dhallOverrides = self: super: { Prelude = super.Prelude.overridePackage { source = true; }; - … + # ... }; +} ``` [semantic-integrity-checks]: https://docs.dhall-lang.org/tutorials/Language-Tour.html#installing-packages |