Run both stable and preview ecosystem checks (#8422)

Closes https://github.com/astral-sh/ruff/issues/8076
Follow-up to #8358 

Doubles the amount of ecosystem checks we do, adding separate groups for
the stable sections.

We're likely to run into GitHub comment length restrictions if there are
significant deviations. However, it should not be common for changes in
stable and preview to occur at the same time, nor should it be common
for linter and formatter changes to occur at the same time.

.github/workflows/ci.yaml

@@ -209,7 +209,7 @@ jobs:
         run: |
           pip install ./python/ruff-ecosystem
 
-      - name: Run `ruff check` ecosystem check
+      - name: Run `ruff check` stable ecosystem check
         if: ${{ needs.determine_changes.outputs.linter == 'true' }}
         run: |
           # Make executable, since artifact download doesn't preserve this
@@ -218,13 +218,30 @@ jobs:
           # Set pipefail to avoid hiding errors with tee
           set -eo pipefail
 
-          ruff-ecosystem check ./ruff ${{ steps.ruff-target.outputs.download-path }}/ruff --cache ./checkouts --output-format markdown --force-preview | tee ecosystem-result-check
+          ruff-ecosystem check ./ruff ${{ steps.ruff-target.outputs.download-path }}/ruff --cache ./checkouts --output-format markdown | tee ecosystem-result-check-stable
 
-          cat ecosystem-result-check > $GITHUB_STEP_SUMMARY
+          cat ecosystem-result-check-stable > $GITHUB_STEP_SUMMARY
-          cat ecosystem-result-check > ecosystem-result
+          echo "### Linter (stable)"  > ecosystem-result
+          cat ecosystem-result-check-stable >> ecosystem-result
           echo "" >> ecosystem-result
 
-      - name: Run `ruff format` ecosystem check
+      - name: Run `ruff check` preview ecosystem check
+        if: ${{ needs.determine_changes.outputs.linter == 'true' }}
+        run: |
+          # Make executable, since artifact download doesn't preserve this
+          chmod +x ./ruff ${{ steps.ruff-target.outputs.download-path }}/ruff
+
+          # Set pipefail to avoid hiding errors with tee
+          set -eo pipefail
+
+          ruff-ecosystem check ./ruff ${{ steps.ruff-target.outputs.download-path }}/ruff --cache ./checkouts --output-format markdown --force-preview | tee ecosystem-result-check-preview
+
+          cat ecosystem-result-check-preview > $GITHUB_STEP_SUMMARY
+          echo "### Linter (preview)" >> ecosystem-result
+          cat ecosystem-result-check-preview >> ecosystem-result
+          echo "" >> ecosystem-result
+
+      - name: Run `ruff format` stable ecosystem check
         if: ${{ needs.determine_changes.outputs.formatter == 'true' }}
         run: |
           # Make executable, since artifact download doesn't preserve this
@@ -233,10 +250,28 @@ jobs:
           # Set pipefail to avoid hiding errors with tee
           set -eo pipefail
 
-          ruff-ecosystem format ./ruff ${{ steps.ruff-target.outputs.download-path }}/ruff --cache ./checkouts --output-format markdown --force-preview | tee ecosystem-result-format
+          ruff-ecosystem format ./ruff ${{ steps.ruff-target.outputs.download-path }}/ruff --cache ./checkouts --output-format markdown | tee ecosystem-result-format-stable
 
-          cat ecosystem-result-format > $GITHUB_STEP_SUMMARY
+          cat ecosystem-result-format-stable > $GITHUB_STEP_SUMMARY
-          cat ecosystem-result-format >> ecosystem-result
+          echo "### Formatter (stable)" >> ecosystem-result
+          cat ecosystem-result-format-stable >> ecosystem-result
+          echo "" >> ecosystem-result
+
+      - name: Run `ruff format` preview ecosystem check
+        if: ${{ needs.determine_changes.outputs.formatter == 'true' }}
+        run: |
+          # Make executable, since artifact download doesn't preserve this
+          chmod +x ./ruff ${{ steps.ruff-target.outputs.download-path }}/ruff
+
+          # Set pipefail to avoid hiding errors with tee
+          set -eo pipefail
+
+          ruff-ecosystem format ./ruff ${{ steps.ruff-target.outputs.download-path }}/ruff --cache ./checkouts --output-format markdown --force-preview | tee ecosystem-result-format-preview
+
+          cat ecosystem-result-format-preview > $GITHUB_STEP_SUMMARY
+          echo "### Formatter (preview)" >> ecosystem-result
+          cat ecosystem-result-format-preview >> ecosystem-result
+          echo "" >> ecosystem-result
 
       - name: Export pull request number
         run: |

.github/workflows/pr-comment.yaml

@@ -48,9 +48,7 @@ jobs:
         id: generate-comment
         if: steps.download-ecosystem-result.outputs.found_artifact == 'true'
         run: |
-          echo '## PR Check Results' >> comment.txt
+          echo '## `ruff-ecosystem` results' >> comment.txt
-
-          echo "### Ecosystem" >> comment.txt
           cat pr/ecosystem/ecosystem-result >> comment.txt
           echo "" >> comment.txt