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c6b62f2381
The distinction between the inputs doesn't really make sense in the mkShell context. Technically speaking, we should be using the nativeBuildInputs most of the time. So in order to make this function more beginner-friendly, add "packages" as an attribute, that maps to nativeBuildInputs. This commit also updates all the uses in nixpkgs.
76 lines
3.4 KiB
Markdown
76 lines
3.4 KiB
Markdown
# Dotnet
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## Local Development Workflow
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For local development, it's recommended to use nix-shell to create a dotnet environment:
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```nix
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# shell.nix
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with import <nixpkgs> {};
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mkShell {
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name = "dotnet-env";
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packages = [
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dotnet-sdk_3
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];
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}
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```
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### Using many sdks in a workflow
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It's very likely that more than one sdk will be needed on a given project. Dotnet provides several different frameworks (E.g dotnetcore, aspnetcore, etc.) as well as many versions for a given framework. Normally, dotnet is able to fetch a framework and install it relative to the executable. However, this would mean writing to the nix store in nixpkgs, which is read-only. To support the many-sdk use case, one can compose an environment using `dotnetCorePackages.combinePackages`:
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```nix
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with import <nixpkgs> {};
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mkShell {
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name = "dotnet-env";
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packages = [
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(with dotnetCorePackages; combinePackages [
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sdk_3_1
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sdk_3_0
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sdk_2_1
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])
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];
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}
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```
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This will produce a dotnet installation that has the dotnet 3.1, 3.0, and 2.1 sdk. The first sdk listed will have it's cli utility present in the resulting environment. Example info output:
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```ShellSesssion
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$ dotnet --info
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.NET Core SDK (reflecting any global.json):
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Version: 3.1.101
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Commit: b377529961
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...
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.NET Core SDKs installed:
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2.1.803 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/sdk]
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3.0.102 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/sdk]
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3.1.101 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/sdk]
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.NET Core runtimes installed:
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Microsoft.AspNetCore.All 2.1.15 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/shared/Microsoft.AspNetCore.All]
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Microsoft.AspNetCore.App 2.1.15 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/shared/Microsoft.AspNetCore.App]
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Microsoft.AspNetCore.App 3.0.2 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/shared/Microsoft.AspNetCore.App]
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Microsoft.AspNetCore.App 3.1.1 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/shared/Microsoft.AspNetCore.App]
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Microsoft.NETCore.App 2.1.15 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/shared/Microsoft.NETCore.App]
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Microsoft.NETCore.App 3.0.2 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/shared/Microsoft.NETCore.App]
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Microsoft.NETCore.App 3.1.1 [/nix/store/iiv98i2jdi226dgh4jzkkj2ww7f8jgpd-dotnet-core-combined/shared/Microsoft.NETCore.App]
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```
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## dotnet-sdk vs dotnetCorePackages.sdk
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The `dotnetCorePackages.sdk_X_Y` is preferred over the old dotnet-sdk as both major and minor version are very important for a dotnet environment. If a given minor version isn't present (or was changed), then this will likely break your ability to build a project.
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## dotnetCorePackages.sdk vs dotnetCorePackages.net vs dotnetCorePackages.netcore vs dotnetCorePackages.aspnetcore
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The `dotnetCorePackages.sdk` contains both a runtime and the full sdk of a given version. The `net`, `netcore` and `aspnetcore` packages are meant to serve as minimal runtimes to deploy alongside already built applications. For runtime versions >= .NET 5 `net` is used while `netcore` is used for older .NET Core runtime version.
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## Packaging a Dotnet Application
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Ideally, we would like to build against the sdk, then only have the dotnet runtime available in the runtime closure.
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TODO: Create closure-friendly way to package dotnet applications
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