Sync fork

.github/workflows/build.yml

@@ -53,6 +53,16 @@ on:
         type: string
         required: false
         default: ""
+      viewport_screenshots:
+        description: "Run the property-gated viewport screenshot regression after the build."
+        type: boolean
+        required: false
+        default: false
+      viewport_resources:
+        description: "Run isolated GTK3 viewport RSS, heap and CPU regression gates."
+        type: boolean
+        required: false
+        default: false
 
 jobs:
   build:
@@ -126,6 +136,50 @@ jobs:
         ${{ (inputs.runtodotests == false && inputs.gtk =='gtk4' && inputs.gdk_backend == 'x11')     && '-DexcludedGroups=gtk4-todo' || '' }}
         ${{ (inputs.runtodotests == false && inputs.gtk =='gtk3' && inputs.gdk_backend == 'wayland') && '-DexcludedGroups=gtk3-wayland-todo' || '' }}
         clean install
+    - name: Viewport screenshot regression
+      if: ${{ inputs.viewport_screenshots && inputs.native == 'gtk.linux.x86_64' }}
+      env:
+        SWT_GTK4: "0"
+        GDK_BACKEND: x11
+      working-directory: tests/org.eclipse.swt.tests
+      run: >-
+        dbus-run-session -- xvfb-run -a -s "-screen 0 1200x800x24 -noreset"
+        mvn --batch-mode -V -U -e
+        -DforkCount=1
+        '-Dnative=${{ inputs.native }}'
+        -DskipNativeTests=true
+        -DfailIfNoTests=true
+        -Dtest=ViewportScreenshotRegressionTest,Test_org_eclipse_swt_awt_Java2DCanvas
+        -Dswt.java2d.evidenceDirectory=target/screenshots/java2d
+        -Dswt.viewport.screenshotRegression=true
+        -Dswt.viewport.screenshots=target/screenshots/viewport
+        integration-test
+
+
+    - name: Validate SWT screen captures with OpenCV
+      if: ${{ inputs.viewport_screenshots && inputs.native == 'gtk.linux.x86_64' }}
+      working-directory: tests/org.eclipse.swt.tests
+      shell: bash
+      run: |
+        python3 -m venv target/viewport-vision
+        target/viewport-vision/bin/python -m pip install opencv-python-headless==4.12.0.88 numpy==2.2.6
+        target/viewport-vision/bin/python verify_viewport_screenshots.py --java2d
+
+    - name: Viewport memory and CPU regression
+      if: ${{ inputs.viewport_resources && inputs.native == 'gtk.linux.x86_64' }}
+      env:
+        SWT_GTK4: "0"
+        GDK_BACKEND: x11
+      working-directory: tests/org.eclipse.swt.tests
+      shell: bash
+      run: |
+        dbus-run-session -- xvfb-run -a -s "-screen 0 1200x800x24 -noreset" \
+          mvn --batch-mode -V -e -DforkCount=1 \
+          '-Dnative=${{ inputs.native }}' -DskipNativeTests=true \
+          -DfailIfNoTests=true -Dtest=ViewportResourceRegressionTest \
+          -Dswt.viewport.resourceRegression=true integration-test
+        python3 verify_viewport_screenshots.py --resources
+
     - name: Performance tests
       if: ${{ inputs.performance }}
       env:
@@ -150,7 +204,11 @@ jobs:
         if-no-files-found: warn
         path: |
           ${{ github.workspace }}/**/target/surefire-reports/*.xml
-          ${{ github.workspace }}/**/target/screenshots/*.png
+          ${{ github.workspace }}/**/target/screenshots/**/*.png
+          ${{ github.workspace }}/**/target/screenshots/**/*.txt
+          ${{ github.workspace }}/**/target/screenshots/**/*.json
+          ${{ github.workspace }}/**/target/viewport-resources/*.properties
+          ${{ github.workspace }}/**/target/capture-qualification/*.properties
           ${{ github.workspace }}/**/*.log
           ${{ github.workspace }}/**/*.dump
           ${{ github.workspace }}/**/*.dumpstream

.github/workflows/junit.yml

@@ -20,10 +20,13 @@ permissions:
 jobs:
   discover-results:
     runs-on: ubuntu-slim
-    if: github.event.workflow_run.conclusion != 'skipped'
+    # A cancelled matrix run was superseded by a newer run of the same ref
+    # (cancel-in-progress); its partial results are not published.
+    if: github.event.workflow_run.conclusion != 'skipped' && github.event.workflow_run.conclusion != 'cancelled'
     outputs:
       matrix: ${{ steps.build-matrix.outputs.matrix }}
       isall: ${{ steps.build-matrix.outputs.isall }}
+      hasresults: ${{ steps.build-matrix.outputs.hasresults }}
     steps:
       - name: Search test-results and build dynamic matrix
         id: build-matrix
@@ -47,6 +50,14 @@ jobs:
             platforms+=" win32"
           fi
           platforms="${platforms# }"
+          if [[ -z "$platforms" ]]; then
+            # An empty matrix vector fails the whole workflow at evaluation time
+            # ("Matrix vector 'platform' does not contain any values").
+            echo "::warning title=No test results::Run ${{ github.event.workflow_run.id }} uploaded no test-results-* artifacts; nothing to publish."
+            echo "hasresults=0" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+          echo "hasresults=1" >> "$GITHUB_OUTPUT"
           if [[ "$platforms" == "macosx linux win32" ]]; then
             platforms+=" all"
             echo "isall=1" >> "$GITHUB_OUTPUT"
@@ -65,6 +76,7 @@ jobs:
 
   results:
     needs: discover-results
+    if: needs.discover-results.outputs.hasresults == '1'
     runs-on: ubuntu-latest
     permissions:
       checks: write

.github/workflows/m3-nonvirtual-tree-demo-20261015.yml

@@ -0,0 +1,46 @@
+name: M3 nonvirtual Tree demand mediator demo
+on:
+  pull_request:
+    paths:
+      - 'examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/M3TreeDemandModel.java'
+      - 'examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/M3NonVirtualTreeDemo.java'
+      - 'examples/org.eclipse.swt.snippets/m3-tree-demo/**'
+      - '.github/workflows/m3-nonvirtual-tree-demo-20261015.yml'
+  workflow_dispatch:
+permissions:
+  contents: read
+jobs:
+  model-java21:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '21'
+      - name: Execute exhaustive headless logical tree/SetData model tests
+        run: bash examples/org.eclipse.swt.snippets/m3-tree-demo/run-model-test.sh
+  gtk-native-smoke:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '21'
+      - name: Obtain pinned public SWT GTK binaries for smoke test only
+        run: |
+          mkdir -p .m3-tree
+          curl --fail --location --retry 3 -o .m3-tree/swt-core.jar \
+            https://repo.maven.apache.org/maven2/org/eclipse/platform/org.eclipse.swt/3.126.0/org.eclipse.swt-3.126.0.jar
+          curl --fail --location --retry 3 -o .m3-tree/swt-gtk.jar \
+            https://repo.maven.apache.org/maven2/org/eclipse/platform/org.eclipse.swt.gtk.linux.x86_64/3.126.0/org.eclipse.swt.gtk.linux.x86_64-3.126.0.jar
+          unzip -t .m3-tree/swt-core.jar >/dev/null
+          unzip -t .m3-tree/swt-gtk.jar >/dev/null
+      - name: Launch and close real SWT GTK Tree in Xvfb
+        run: |
+          SWT_CLASSPATH="$PWD/.m3-tree/swt-core.jar:$PWD/.m3-tree/swt-gtk.jar" \
+            xvfb-run -a bash examples/org.eclipse.swt.snippets/m3-tree-demo/run-swt.sh \
+              --close-after-ms=1500

.github/workflows/m3-source-pin-20261021.yml

@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: Apache-2.0
+name: M3 original AST source pin
+on:
+  pull_request:
+    paths:
+      - 'pom.xml'
+      - '.m3/m3ast-20261021/**'
+      - '.github/workflows/m3-source-pin-20261021.yml'
+  workflow_dispatch:
+permissions:
+  contents: read
+jobs:
+  source-identity:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: python3 .m3/m3ast-20261021/verify.py

.github/workflows/m3-swt-eventtable-20261021.yml

@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: Apache-2.0 OR EPL-2.0
+name: Original SWT EventTable M3 indexed dynamic-array differential
+on:
+  pull_request:
+    paths:
+      - 'bundles/org.eclipse.swt/Eclipse SWT/common/org/eclipse/swt/widgets/EventTable.java'
+      - 'docs/m3/eventtable-20261021/**'
+      - '.github/workflows/m3-swt-eventtable-20261021.yml'
+  workflow_dispatch:
+permissions:
+  contents: read
+jobs:
+  original-swt-parity:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+          fetch-depth: 0
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '21'
+      - name: Compile real Eclipse SWT source against isolated oracle stubs; compare original blob
+        shell: bash
+        run: |
+          set -euo pipefail
+          bash docs/m3/eventtable-20261021/prove.sh

.github/workflows/m3-synexia-bootstrap-sdk-20261018.yml

@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: EPL-2.0
+name: SWT Canonical Synexia Bootstrap SDK Proof
+on:
+  pull_request:
+    paths:
+      - '.m3/openrewrite-recipes/src/**'
+      - '.m3/SYNEXIA_BOOTSTRAP_RECEIVER_20261018.md'
+      - '.github/workflows/m3-synexia-bootstrap-sdk-20261018.yml'
+  push:
+    branches:
+      - 'work/synexia-canonical-bootstrap-sdk-20261018'
+  workflow_dispatch:
+permissions:
+  contents: read
+jobs:
+  java21-openrewrite-readonly-application:
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '21'
+          cache: maven
+      - name: Verify canonical Git-source custody
+        run: |
+          set -euo pipefail
+          test "$(git hash-object .m3/openrewrite-recipes/src/main/java/com/synexia/m3/bootstrap/M3BootstrapInventoryRecipe.java)" = 8f1018a1bcfa203420253d59a8473ef5a18e19b6
+          test "$(git hash-object .m3/openrewrite-recipes/src/main/java/com/synexia/m3/bootstrap/M3BootstrapTaskRecipe.java)" = cfb9fb8befe2c5ccde5035e96ae7c99b89b5f490
+      - name: Execute original OpenRewrite SDK inventory and task-refusal JUnit
+        run: >
+          mvn -B -ntp -f .m3/openrewrite-recipes/pom.xml
+          -Dtest=M3BootstrapCrossForkExecutionTest test
+      - name: Preserve SWT receiver source
+        run: |
+          git diff --exit-code -- bundles
+          test -z "$(git status --porcelain --untracked-files=all -- bundles)"

.github/workflows/maven.yml

@@ -16,9 +16,19 @@ concurrency:
 on:
   push:
     branches: [ master ]
+    # Documentation and M3 evidence records are not Maven inputs (no pom, bundle,
+    # test or example reads .m3/ or docs/), so they do not need the six-leg build.
+    paths-ignore:
+      - '**/*.md'
+      - 'docs/**'
+      - '.m3/**'
   pull_request:
     branches: [ master ]
     types: [opened, reopened, synchronize, labeled]
+    paths-ignore:
+      - '**/*.md'
+      - 'docs/**'
+      - '.m3/**'
 
 permissions:
   contents: read

.github/workflows/native-source-distillation.yml

@@ -0,0 +1,94 @@
+name: SWT Native Source Distillation
+
+on:
+  workflow_dispatch:
+  pull_request:
+    paths:
+      - '**/*.c'
+      - '**/*.h'
+      - '**/*.cc'
+      - '**/*.cpp'
+      - '**/*.cxx'
+      - '**/*.hpp'
+      - '**/*.m'
+      - '**/*.mm'
+      - '.m3/analysis-pom.xml'
+      - '.m3/native-source-distillation-20261005/**'
+      - '.github/workflows/native-source-distillation.yml'
+  push:
+    branches:
+      - master
+      - m3/swt-native-source-distillation-20261005
+    paths:
+      - '**/*.c'
+      - '**/*.h'
+      - '**/*.cc'
+      - '**/*.cpp'
+      - '**/*.cxx'
+      - '**/*.hpp'
+      - '**/*.m'
+      - '**/*.mm'
+      - '.m3/analysis-pom.xml'
+      - '.m3/native-source-distillation-20261005/**'
+      - '.github/workflows/native-source-distillation.yml'
+
+permissions:
+  contents: read
+
+concurrency:
+  group: swt-native-source-distillation-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  distill:
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout SWT
+        uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+        with:
+          fetch-depth: 1
+          lfs: false
+
+      - name: Checkout qualified canonical native atomizer
+        uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
+        with:
+          repository: hsoliwal/com.synexia
+          ref: b280abde3cca3f74ed61a4a02a109bbee3273d14
+          # hsoliwal/com.synexia is private: the job GITHUB_TOKEN is scoped to this
+          # repository only and gets "repository not found". A read-only token for
+          # the atomizer repository must be stored as SYNEXIA_READ_TOKEN.
+          token: ${{ secrets.SYNEXIA_READ_TOKEN || github.token }}
+          path: target/m3-synexia
+          sparse-checkout-cone-mode: false
+          sparse-checkout: |
+            synexia-openrewrite-recipes/src/main/java/com/synexia/rewrite/M3NativeSourceAtomizer.java
+            synexia-openrewrite-recipes/src/main/java/com/synexia/rewrite/M3NativeSourceReceiptWriter.java
+            synexia-openrewrite-recipes/src/main/java/com/synexia/rewrite/M3NativeSourceReceiptCli.java
+          fetch-depth: 1
+          lfs: false
+
+      - name: Set up Java 21
+        uses: actions/setup-java@de5a937a1dc73fbc1a67d7d1aa4bebc1082f3190
+        with:
+          java-version: '21'
+          distribution: temurin
+
+      - name: Compile canonical receipt runner
+        shell: bash
+        run: |
+          mkdir -p target/native-receipt-classes
+          javac --release 21 -d target/native-receipt-classes \
+            target/m3-synexia/synexia-openrewrite-recipes/src/main/java/com/synexia/rewrite/M3NativeSourceAtomizer.java \
+            target/m3-synexia/synexia-openrewrite-recipes/src/main/java/com/synexia/rewrite/M3NativeSourceReceiptWriter.java \
+            target/m3-synexia/synexia-openrewrite-recipes/src/main/java/com/synexia/rewrite/M3NativeSourceReceiptCli.java
+
+      - name: Verify committed atom payloads and fixed-point receipts
+        shell: bash
+        run: |
+          java -cp target/native-receipt-classes \
+            com.synexia.rewrite.M3NativeSourceReceiptCli "$GITHUB_WORKSPACE" --check
+          grep -q '^FILES=124$' .m3/native-source-distillation-20261005/COMPLETE.properties
+          grep -q '^LOSSLESS_RECOMPOSITION=true$' .m3/native-source-distillation-20261005/COMPLETE.properties
+          grep -q '^RECIPE_FIXED_POINT=true$' .m3/native-source-distillation-20261005/COMPLETE.properties
+          grep -q '^NATIVE_SOURCE_MUTATION=false$' .m3/native-source-distillation-20261005/COMPLETE.properties
+          git diff --exit-code

.github/workflows/pr-checks.yml

@@ -11,11 +11,16 @@ on:
 
 jobs:
   check-freeze-period:
-    uses: eclipse-platform/eclipse.platform.releng.aggregator/.github/workflows/verifyFreezePeriod.yml@master
+    permissions:
+      issues: read
+    uses: eclipse-platform/eclipse.platform.releng.aggregator/.github/workflows/verifyFreezePeriod.yml@481b9f832969add4d88f4ad62c9549af8ab9d4ec
   check-merge-commits:
-    uses: eclipse-platform/eclipse.platform.releng.aggregator/.github/workflows/checkMergeCommits.yml@master
+    permissions:
+      contents: read
+      pull-requests: read
+    uses: eclipse-platform/eclipse.platform.releng.aggregator/.github/workflows/checkMergeCommits.yml@481b9f832969add4d88f4ad62c9549af8ab9d4ec
   check-versions:
-    uses: eclipse-platform/eclipse.platform.releng.aggregator/.github/workflows/checkVersions.yml@master
+    uses: eclipse-platform/eclipse.platform.releng.aggregator/.github/workflows/checkVersions.yml@481b9f832969add4d88f4ad62c9549af8ab9d4ec
     with:
       botName: Eclipse Platform Bot
       botMail: platform-bot@eclipse.org