merge origin/main: resolve FastSenseWidget + accept .planning deletions

Conflicts resolved:
  libs/Dashboard/FastSenseWidget.m — keep both sides: main's new
    formatTimeAxis_(ax) call (PR #66 datetime axis migration) AND
    the PR #68 autoScaleY_ / YLimits branch. formatTimeAxis_ is now
    invoked inside a try/catch after fp.render() so it can't mask
    the autoscale logic on older Octave versions that lack axes
    property listeners.
  .planning/ROADMAP.md, .planning/STATE.md — accept main's deletion;
    the planning artefacts were removed upstream in the milestone
    completion cleanup (#65).

test_mex_prebuilt failure (testNeedsBuildReturnsTrueWhenBinaryMissing)
is pre-existing on plain main — it asserts the local MEX binary is
absent, which does not hold in this worktree. Not introduced by this
PR.

Author: HanSur94

.github/workflows/_build-mex-octave.yml

@@ -24,9 +24,12 @@ jobs:
         with:
           path: |
             libs/FastSense/private/*.mex
+            libs/FastSense/private/octave-linux-x86_64/*.mex
+            libs/FastSense/octave-linux-x86_64/*.mex
             libs/SensorThreshold/private/*.mex
+            libs/SensorThreshold/private/octave-linux-x86_64/*.mex
             libs/FastSense/mksqlite.mex
-          key: mex-linux-${{ hashFiles('libs/FastSense/private/mex_src/**', 'libs/FastSense/build_mex.m') }}
+          key: mex-linux-${{ hashFiles('libs/FastSense/private/mex_src/**', 'libs/FastSense/build_mex.m', 'libs/FastSense/private/.mex-version') }}
 
       - name: Compile MEX files
         if: steps.cache-mex.outputs.cache-hit != 'true'
@@ -38,6 +41,9 @@ jobs:
           name: ${{ inputs.artifact-name }}
           path: |
             libs/FastSense/private/*.mex
+            libs/FastSense/private/octave-linux-x86_64/*.mex
+            libs/FastSense/octave-linux-x86_64/*.mex
             libs/SensorThreshold/private/*.mex
+            libs/SensorThreshold/private/octave-linux-x86_64/*.mex
             libs/FastSense/mksqlite.mex
           retention-days: 1

.github/workflows/benchmark.yml

@@ -45,7 +45,7 @@ jobs:
         run: git config --global --add safe.directory /__w/FastSense/FastSense
 
       - name: Store benchmark results
-        uses: benchmark-action/github-action-benchmark@v1.21.0
+        uses: benchmark-action/github-action-benchmark@v1.22.0
         with:
           name: FastSense Performance
           tool: customSmallerIsBetter

.github/workflows/refresh-mex-binaries.yml

@@ -0,0 +1,320 @@
+name: Refresh MEX Binaries
+
+# Builds the full 7-way platform x runtime matrix (4 MATLAB + 3 Octave) on
+# every push to main that touches MEX sources, and on manual dispatch.  The
+# aggregator job collects all 7 artifacts, regenerates the .mex-version
+# stamp, and opens/updates a PR on `chore/refresh-mex-binaries` refreshing
+# the committed binaries.
+#
+# Non-retrigger invariant:
+#   The auto-PR only touches binaries + .mex-version.  Neither of those are
+#   in `paths`, so merging the PR does not loop.  Belt-and-braces: each job
+#   ignores github-actions[bot] as actor.
+#
+# Source of truth for the stamp formula is libs/FastSense/private/mex_stamp.m.
+# The aggregator mirrors its concatenation ordering: sorted *.c files in
+# mex_src/, then sorted *.h files in mex_src/, then build_mex.m, then
+# mksqlite.c.
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'libs/FastSense/private/mex_src/**'
+      - 'libs/FastSense/build_mex.m'
+      - 'libs/FastSense/mksqlite.c'
+      # Defensive: refresh if the stamp formula itself changes. The formula
+      # is reimplemented in bash inside the aggregator job; if mex_stamp.m
+      # and the aggregator drift, stamps mismatch and binaries rebuild
+      # without the committed stamp updating -- infinite rebuild loop.
+      - 'libs/FastSense/mex_stamp.m'
+  workflow_dispatch:
+
+concurrency:
+  group: refresh-mex-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  build-matlab:
+    name: MATLAB MEX ${{ matrix.label }}
+    if: github.actor != 'github-actions[bot]'
+    timeout-minutes: 45
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - label: macos-arm64
+            os: macos-14
+            release: R2023b
+            mexext: mexmaca64
+          - label: macos-x86_64
+            os: macos-15-intel
+            release: R2023b
+            mexext: mexmaci64
+          - label: linux-x86_64
+            os: ubuntu-22.04
+            release: R2020b
+            mexext: mexa64
+          - label: windows-x86_64
+            os: windows-latest
+            release: R2020b
+            mexext: mexw64
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: matlab-actions/setup-matlab@v3
+        with:
+          release: ${{ matrix.release }}
+          cache: true
+
+      - name: Delete stale binaries for this platform
+        shell: bash
+        run: |
+          find libs -type f -name "*.${{ matrix.mexext }}" -delete || true
+
+      - name: Verify mexext on runner
+        uses: matlab-actions/run-command@v3
+        with:
+          command: "assert(strcmp(mexext(), '${{ matrix.mexext }}'), sprintf('Expected %s, got %s', '${{ matrix.mexext }}', mexext()));"
+
+      - name: Compile via install()
+        uses: matlab-actions/run-command@v3
+        with:
+          command: "install();"
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v7
+        with:
+          name: mex-matlab-${{ matrix.label }}
+          path: |
+            libs/FastSense/private/*.${{ matrix.mexext }}
+            libs/FastSense/mksqlite.${{ matrix.mexext }}
+            libs/SensorThreshold/private/*.${{ matrix.mexext }}
+          if-no-files-found: error
+          retention-days: 3
+
+  build-octave-linux:
+    name: Octave MEX linux-x86_64
+    if: github.actor != 'github-actions[bot]'
+    timeout-minutes: 30
+    runs-on: ubuntu-22.04
+    container: gnuoctave/octave:11.1.0
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Delete stale Octave binaries
+        run: find libs -type f -name '*.mex' -delete || true
+
+      - name: Compile via install()
+        run: octave --eval "install();"
+
+      - name: Verify subdir output
+        run: |
+          test -f libs/FastSense/private/octave-linux-x86_64/binary_search_mex.mex
+          test -f libs/FastSense/octave-linux-x86_64/mksqlite.mex
+
+      - uses: actions/upload-artifact@v7
+        with:
+          name: mex-octave-linux-x86_64
+          path: |
+            libs/FastSense/private/octave-linux-x86_64/*.mex
+            libs/FastSense/octave-linux-x86_64/*.mex
+            libs/SensorThreshold/private/octave-linux-x86_64/*.mex
+          if-no-files-found: error
+          retention-days: 3
+
+  build-octave-macos:
+    name: Octave MEX macos-arm64
+    if: github.actor != 'github-actions[bot]'
+    timeout-minutes: 30
+    runs-on: macos-14
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install Octave
+        run: brew install octave
+
+      - name: Delete stale Octave binaries
+        run: find libs -type f -name '*.mex' -delete || true
+
+      - name: Compile via install()
+        run: octave --eval "install();"
+
+      - name: Verify subdir output
+        run: |
+          test -f libs/FastSense/private/octave-macos-arm64/binary_search_mex.mex
+          test -f libs/FastSense/octave-macos-arm64/mksqlite.mex
+
+      - uses: actions/upload-artifact@v7
+        with:
+          name: mex-octave-macos-arm64
+          path: |
+            libs/FastSense/private/octave-macos-arm64/*.mex
+            libs/FastSense/octave-macos-arm64/*.mex
+            libs/SensorThreshold/private/octave-macos-arm64/*.mex
+          if-no-files-found: error
+          retention-days: 3
+
+  build-octave-windows:
+    name: Octave MEX windows-x86_64
+    if: github.actor != 'github-actions[bot]'
+    timeout-minutes: 45
+    runs-on: windows-latest
+    steps:
+      - name: Allow paths with colons (wiki files)
+        run: git config --global core.protectNTFS false
+
+      - uses: actions/checkout@v6
+        with:
+          sparse-checkout: |
+            libs
+            install.m
+          sparse-checkout-cone-mode: false
+
+      - name: Install Octave
+        shell: pwsh
+        run: |
+          # Try Chocolatey first
+          choco install octave.portable --yes --version=9.2.0 --no-progress 2>$null
+          $octExe = Get-ChildItem -Path "C:\ProgramData\chocolatey\lib\octave.portable\tools" -Recurse -Filter "octave-cli.exe" -ErrorAction SilentlyContinue | Select-Object -First 1
+          if ($octExe) {
+            Write-Host "Octave installed via Chocolatey at: $($octExe.FullName)"
+            echo "OCTAVE_EXE=$($octExe.FullName)" >> $env:GITHUB_ENV
+            exit 0
+          }
+          # Fallback: direct download from mirror
+          $LASTEXITCODE = 0
+          $global:LASTEXITCODE = 0
+          Write-Host "::warning::Chocolatey install failed (ftp.gnu.org may be down). Downloading from mirror..."
+          $url = "https://mirrors.kernel.org/gnu/octave/windows/octave-9.2.0-w64.zip"
+          $zip = "$env:TEMP\octave.zip"
+          $dest = "C:\octave"
+          Invoke-WebRequest -Uri $url -OutFile $zip -UseBasicParsing
+          Expand-Archive -Path $zip -DestinationPath $dest -Force
+          $octExe = Get-ChildItem -Path $dest -Recurse -Filter "octave-cli.exe" | Select-Object -First 1
+          if (-not $octExe) {
+            Write-Error "Failed to find octave-cli.exe after direct download"
+            exit 1
+          }
+          Write-Host "Octave installed via direct download at: $($octExe.FullName)"
+          echo "OCTAVE_EXE=$($octExe.FullName)" >> $env:GITHUB_ENV
+        timeout-minutes: 15
+
+      - name: Delete stale Octave binaries
+        shell: pwsh
+        run: Get-ChildItem -Recurse libs -Filter '*.mex' -ErrorAction SilentlyContinue | Remove-Item -Force
+
+      - name: Compile via install()
+        shell: pwsh
+        run: |
+          $octExe = $env:OCTAVE_EXE
+          if (-not $octExe -or -not (Test-Path $octExe)) {
+            Write-Error "OCTAVE_EXE not set or not found: $octExe"
+            exit 1
+          }
+          & $octExe --no-window-system --eval "install();"
+
+      - name: Verify subdir output
+        shell: pwsh
+        run: |
+          if (-not (Test-Path 'libs/FastSense/private/octave-windows-x86_64/binary_search_mex.mex')) { throw "kernel missing under libs/FastSense/private/octave-windows-x86_64/" }
+          if (-not (Test-Path 'libs/FastSense/octave-windows-x86_64/mksqlite.mex'))              { throw "mksqlite missing under libs/FastSense/octave-windows-x86_64/" }
+
+      - uses: actions/upload-artifact@v7
+        with:
+          name: mex-octave-windows-x86_64
+          path: |
+            libs/FastSense/private/octave-windows-x86_64/*.mex
+            libs/FastSense/octave-windows-x86_64/*.mex
+            libs/SensorThreshold/private/octave-windows-x86_64/*.mex
+          if-no-files-found: error
+          retention-days: 3
+
+  open-refresh-pr:
+    name: Aggregate + Open PR
+    needs:
+      - build-matlab
+      - build-octave-linux
+      - build-octave-macos
+      - build-octave-windows
+    if: always() && !cancelled() && github.actor != 'github-actions[bot]'
+    runs-on: ubuntu-22.04
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v6
+
+      # Download ALL artifacts into the workspace; merge-multiple preserves
+      # the repo-relative paths each artifact was uploaded with, dropping
+      # them back into libs/.../{,octave-<tag>/}.
+      - uses: actions/download-artifact@v8
+        with:
+          pattern: mex-*
+          merge-multiple: true
+
+      - name: Regenerate .mex-version stamp
+        shell: bash
+        run: |
+          # Mirror libs/FastSense/private/mex_stamp.m: sorted *.c then sorted
+          # *.h from mex_src (non-recursive), then build_mex.m, then mksqlite.c.
+          set -euo pipefail
+          src_dir="libs/FastSense/private/mex_src"
+          mapfile -t c_files < <(find "$src_dir" -maxdepth 1 -name '*.c' | LC_ALL=C sort)
+          mapfile -t h_files < <(find "$src_dir" -maxdepth 1 -name '*.h' | LC_ALL=C sort)
+          tmp="$(mktemp)"
+          for f in "${c_files[@]}" "${h_files[@]}" libs/FastSense/build_mex.m libs/FastSense/mksqlite.c; do
+            cat "$f" >> "$tmp"
+          done
+          hex="$(sha256sum "$tmp" | awk '{print $1}')"
+          rm -f "$tmp"
+          printf 'sha256:%s\n' "$hex" > libs/FastSense/private/.mex-version
+          echo "Stamp:"
+          cat libs/FastSense/private/.mex-version
+
+      - name: Show refreshed tree
+        run: |
+          find libs -type f \( \
+            -name '*.mexmaca64' -o -name '*.mexmaci64' -o \
+            -name '*.mexa64'    -o -name '*.mexw64'    -o \
+            -name '*.mex' \
+            \) | sort
+          echo "--- stamp ---"
+          cat libs/FastSense/private/.mex-version
+
+      - uses: peter-evans/create-pull-request@v7
+        with:
+          branch: chore/refresh-mex-binaries
+          delete-branch: true
+          commit-message: "chore(mex): refresh prebuilt MEX binaries"
+          title: "chore: refresh prebuilt MEX binaries"
+          body: |
+            Auto-generated by `.github/workflows/refresh-mex-binaries.yml`.
+
+            Regenerates committed MEX binaries for all 7 platform x runtime
+            combinations and updates `libs/FastSense/private/.mex-version`.
+
+            Merging this PR does NOT retrigger the workflow (binaries and
+            the stamp are excluded from the workflow's `paths` filter).
+          add-paths: |
+            libs/FastSense/private/*.mexmaca64
+            libs/FastSense/private/*.mexmaci64
+            libs/FastSense/private/*.mexa64
+            libs/FastSense/private/*.mexw64
+            libs/FastSense/mksqlite.mexmaca64
+            libs/FastSense/mksqlite.mexmaci64
+            libs/FastSense/mksqlite.mexa64
+            libs/FastSense/mksqlite.mexw64
+            libs/SensorThreshold/private/*.mexmaca64
+            libs/SensorThreshold/private/*.mexmaci64
+            libs/SensorThreshold/private/*.mexa64
+            libs/SensorThreshold/private/*.mexw64
+            libs/FastSense/private/octave-*/**
+            libs/FastSense/octave-*/**
+            libs/SensorThreshold/private/octave-*/**
+            libs/FastSense/private/.mex-version

.github/workflows/release.yml

@@ -59,12 +59,10 @@ jobs:
           cp install.m LICENSE README.md CITATION.cff "${DIRNAME}/"
           cp -r examples "${DIRNAME}/"
 
-          # Copy libs, excluding compiled MEX binaries
+          # Copy libs including committed prebuilt MEX binaries.
+          # Binaries are refreshed by .github/workflows/refresh-mex-binaries.yml
+          # and shipped in the release archive so end users skip compilation.
           cp -r libs "${DIRNAME}/"
-          find "${DIRNAME}/libs" -type f \( \
-            -name "*.mexmaca64" -o -name "*.mexmaci64" \
-            -o -name "*.mexa64" -o -name "*.mexw64" \
-            -o -name "*.mex" \) -delete
 
           # Create archives
           tar czf "${DIRNAME}.tar.gz" "${DIRNAME}"
@@ -81,7 +79,7 @@ jobs:
 
             ## Installation
 
-            Download the archive, extract it, and run `install` in MATLAB/Octave to add libraries to path and compile MEX accelerators.
+            Download the archive, extract it, and run `install` in MATLAB/Octave. Prebuilt MEX binaries are bundled — compilation only happens on unsupported platforms.
           files: |
             FastSense-${{ steps.version.outputs.VERSION }}.tar.gz
             FastSense-${{ steps.version.outputs.VERSION }}.zip