try and inline into pre-build.yml again

.github/workflows/pre-build.yml

@@ -25,13 +25,61 @@ jobs:
       # For normal PR jobs, just checkout the base_ref the PR is against
       - uses: actions/checkout@v4
         with: { fetch-depth: 1 }
+      # For normal PR jobs, just checkout the base_ref the PR is against
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.base_ref }}
+        if: ${{ !(github.event_name == 'push' && github.repository != 'com-lihaoyi/mill') }}
+
+      # For fork push jobs, first checkout the version being pushed, then look for the
+      # merge-base where the current version forks off from the upstream main branch
+      - uses: actions/checkout@v4
+        with: { fetch-depth: 0 }
+        if: ${{ github.event_name == 'push' && github.repository != 'com-lihaoyi/mill' }}
+
+      - run: |
+          git fetch https://github.com/com-lihaoyi/mill main
+          MERGE_BASE=$(git merge-base FETCH_HEAD HEAD)
+          # pretty-print the path between the FETCH_HEAD (main), HEAD, and the merge-base
+          git log --graph --pretty=format:"%h %d %ar %s %n" --ancestry-path $MERGE_BASE^1..HEAD --ancestry-path $MERGE_BASE^1..FETCH_HEAD
+          
+          git checkout $MERGE_BASE
+        shell: bash
+        if: ${{ github.event_name == 'push' && github.repository != 'com-lihaoyi/mill' }}
 
-      - uses: ./.github/actions/pre-build-setup
+      - run: echo temurin:${{ inputs.java-version }} > .mill-jvm-version
+        shell: bash
+
+      - run: chmod -R 777 . # normalize permissions before and after upload/download-artifact
+        shell: bash
+
+      - run: mkdir out && touch out/mill-selective-execution.json
+        shell: bash
+
+      - run: cat .mill-jvm-version
+        shell: bash
+
+      - run: ./mill -i --debug -k selective.prepare ${{ inputs.prepareargs }}
+        if: ${{ (github.event_name == 'pull_request' && !contains(github.event.pull_request.labels.*.name, 'run-all-tests')) || github.repository != 'com-lihaoyi/mill' }}
+        shell: ${{ inputs.shell }}
+
+
+      - run: cat out/mill-build/methodCodeHashSignatures.dest/current/4-methodCodeHashes.json | jq '.["build_.dist.package_$native$.$anonfun$executableRaw$8(os.Path,scala.collection.immutable.Seq,java.io.OutputStream)void"]'
+        shell: bash
+      - run: cat out/mill-build/methodCodeHashSignatures.dest/current/7-transitiveCallGraphHashes.json  | jq '.["build_.dist.package_$native$.$anonfun$executableRaw$8(os.Path,scala.collection.immutable.Seq,java.io.OutputStream)void"]'
+        shell: bash
+      - run: cat out/mill-build/methodCodeHashSignatures.json  | jq '.["value"]["build_.dist.package_$native$.$anonfun$executableRaw$8(os.Path,scala.collection.immutable.Seq,java.io.OutputStream)void"]'
+        shell: bash
+      - run: cat out/mill-selective-execution.json  | jq '.["methodCodeHashSignatures"]["build_.dist.package_$native$.$anonfun$executableRaw$8(os.Path,scala.collection.immutable.Seq,java.io.OutputStream)void"]'
+        shell: bash
+
+      - uses: actions/[email protected]
         with:
-          os: ${{ inputs.os }}
-          java-version: ${{ inputs.java-version }}
-          shell: ${{ inputs.shell }}
+          path: out/mill-selective-execution.json
+          name: ${{ inputs.os }}-selective-execution-artifact
+          include-hidden-files: true
 
+      - uses: actions/checkout@v4
       - run: ./mill -i --debug -k version