[ArPow] Onboard runtime to arcade-powered source-build

[dagood]

[dagood]

Here's the current state on this work. It's a little complicated because there's an active breaking change between Arcade and Runtime that I think is still playing out: https://github.com/dotnet/core-eng/issues/12264

For now, I have a branch of Arcade that needs to be plugged into dotnet/runtime. Paths that I'll use later:

• ~/git/arcade https://github.com/dagood/arcade/tree/arpow-suppl (dotnet/arcade@master...dagood:arpow-suppl)
• ~/git/runtime https://github.com/dagood/runtime/tree/arpow (dotnet/runtime@master...dagood:arpow)

I run my build in mcr.microsoft.com/dotnet-buildtools/prereqs:centos-7-f39df28-20191023143754, container workdir /work/ volume mapped to the repo directory. I use these utils I threw together for easy dev flow (centosme -- ./build.sh ...): https://github.com/dagood/terminal-setup/blob/master/bash-util/centosme. It's not necessary--when I use it below, it just means it runs the command with the current working directory volume mapped to /work/ in the container.

The docker host is a bare-metal Linux (Fedora) machine.

---

(1) In ~/git/arcade, run centosme -- ./build.sh --build --restore --pack

(2) Make changes like these to dotnet/runtime to accept the local arcade build:

diff --git a/NuGet.config b/NuGet.config
index d99698bf530..5b1340214d9 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -13,2 +13,3 @@
     <!-- TEST_RESTORE_SOURCES_INSERTION_LINE -->
+    <add key="local-arcade" value="/work/sandbox" />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
diff --git a/global.json b/global.json
index cb70ea2b691..7b32916853c 100644
--- a/global.json
+++ b/global.json
@@ -15,3 +15,3 @@
     "Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk": "6.0.0-beta.21081.1",
-    "Microsoft.DotNet.Arcade.Sdk": "6.0.0-beta.21081.1",
+    "Microsoft.DotNet.Arcade.Sdk": "6.0.0-dev",
     "Microsoft.DotNet.Helix.Sdk": "6.0.0-beta.21081.1",

(3) Copy the Arcade build into the local feed and build:

git clean -xdff
mkdir sandbox # This name happens to be in the .gitignore, nothing special.
cp -r ~/git/arcade/artifacts/packages/Debug/NonShipping/ sandbox
centosme -- ./build.sh -c Release --restore --build --pack /p:ArcadeBuildFromSource=true /p:SourceBuildNonPortable=true -bl

/p:SourceBuildNonPortable=true gives centos.7-x64 outputs, based on build host (container)
/p:SourceBuildNonPortable=false (or omitted) gives linux-x64 outputs

---

Once dotnet/runtime gets to a version of Arcade >= 6.0.0-beta.21117.1, the dev branch should be able to be merged up to that point and the workarounds won't be necessary. 6.0.0-beta.21117.1 is the first version with built-in supplemental nupkg support: dotnet/arcade#6961.

/cc @dseefeld @crummel @MichaelSimons