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feat: callpackage

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Ryan Yin 2023-10-05 23:44:47 +08:00
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docs/nixpkgs/callpackage.md
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@ -92,7 +92,7 @@ In the previous example without `pkgs.callPackage`, we directly passed `pkgs` as
# ...... # ......
``` ```
In essence, `pkgs.callPackage` is used as `pkgs.callPackage fn args`, where `fn` is a Nix file or function, and `args` is an attribute set. Here's how it works: In essence, `pkgs.callPackage` is used as `pkgs.callPackage fn args`, where the place holder `fn` is a Nix file or function, and `args` is an attribute set. Here's how it works:
1. `pkgs.callPackge fn args` first checks if `fn` is a function or a file. If it's a file, it imports the function defined within. 1. `pkgs.callPackge fn args` first checks if `fn` is a function or a file. If it's a file, it imports the function defined within.
1. After this step, you have a function, typically with parameters like `lib`, `stdenv`, `fetchurl`, and possibly some custom parameters. 1. After this step, you have a function, typically with parameters like `lib`, `stdenv`, `fetchurl`, and possibly some custom parameters.