[release/5.0-preview4] Revert processing bundles in framework #35679
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Customer Scenario
Publishing apps as a self-contained single-file doesn't work as expected.
Problem
Since Static-apphost is not yet ready, processing bundle content in hostpolicy means that hostpolicy and hostfxr DLLs need to be separate from the bundle. This causes self-contained single-file apps to not be a "single file" temporarily.
The change also requires supporting changes from the SDK, to publish hostfxr and hostpolicy as separate files, and to invoke HostModel library with arguments that facilitate cross-platform publishing.
Solution
To solve these, problem, this change reverts:
Revert "Single-File: Process bundles in the framework (#34274)" commit 78b303d.
and a dependent test-only change:
Revert "Single-File Bundler: Add a FileSize test (#35149)" commit 779588a.
Risk
Medium
The change is contained to only host components: apphost, hostpolicy, and hostfxr.
However, the change is big, and needs testing in runtime and SDK repos.
Testing
Manually tested the SDK by inserting apphost, hostfxr, hostpolicy, and hostmodel library from this build into the
dotnet/packspreview-4 SDK from dotnet/sdk#11518 build.Verified that: