Test the entire commit range of a PR

[hasufell]

In order to "bisect" a PR with multiple commits, we could do the following:

• add a bisect label
• the reusable workflow will be triggered for each commit of the PR (maybe need some safeguard... anything above 10 commits will be rejected)

This should be easy, since the workflow is already written in such a way that it can be executed for different git refs:

ghc/.github/workflows/reusable-release.yml

Lines 6 to 8 in d74b932

	branches:
	required: true
	type: string

ghc/.github/workflows/reusable-release.yml

Lines 80 to 87 in d74b932

	build-linux:
	name: Build linux binaries
	runs-on: ubuntu-latest
	needs: ["tool-output"]
	strategy:
	fail-fast: false
	matrix:
	branch: ${{ fromJSON(inputs.branches) }}

ghc/.github/workflows/release.yml

Lines 18 to 22 in d74b932

	jobs:
	release-workflow:
	uses: ./.github/workflows/reusable-release.yml
	with:
	branches: '["${{ github.ref }}"]'

[hasufell]

The only downside might be that it will probably not indicate the state of tested commits in the github UI (which is the case if you add new commits).