Add revised Memory deltas workflow (#1239)

* Initial test

* Fix syntax

* Fix platform names

* Fix platforms order

* Add sketch-paths

* Add verbose

* Disable fail fast

* Attempt compile only top level file

* Update compile-sketches action version

* Try mega2560 compile with native core

* Try blank source-url

* Change to array for platform

* Change formatting

* Last try

* Use scalar multiline strings for paltform

* Use string literals for newline

* Formatting

* Try mega2560 without library

* Add stm32f407

* Add library board property

* Fixes

* Fix mega platform

* Change Time to TimeLib

* Try different escaping

* Use individual lines for build extra-flags

* Try without escaping

* Try only single build flag

* Add 2nd -D for mega

* Add all mega build options back

* Match stm32 build option format

* Remove HWSERIAL 2 and 3 for stm32

* Lock stm32 to v2.7.1

* Enable reporting on PR

* Disable verbose

* Add workflow name

* Dummy test data to verify memory change

* Revert "Dummy test data to verify memory change"

This reverts commit e83609ec9e.

* Dummy memory increase for Teensy and stm32

* Revert "Dummy memory increase for Teensy and stm32"

This reverts commit 830b255e75.

* Only run on PRs

* Revert "Only run on PRs"

This reverts commit 24d61e5069.

* Split memory deltas workflow into calculating and reporting

* Force v3 of upload-artifact

* Lock report deltas version

* Use latest example as reference

.github/workflows/pr-memory-deltas-generate.yml

@@ -0,0 +1,90 @@
+name: Calculate memory deltas
+
+on:
+  - push
+  - pull_request
+
+env:
+  # It's convenient to set variables for values used multiple times in the workflow.
+  SKETCHES_REPORTS_PATH: sketches-reports
+
+jobs:
+  compile:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        board:
+          # Each element in the sequence produces a matrix job:
+          - fqbn: arduino:avr:mega
+            # This suffix will be used to define a unique name for the sketches report artifact.
+            artifact-name-suffix: arduino-avr-mega
+            family-name: arduino:avr
+            platform: |
+              - name: arduino:avr
+            compile-flags: |
+              - --build-property
+              - build.extra_flags=-DPLATFORMIO -DUSE_LIBDIVIDE -O3 -ffast-math -fshort-enums -funroll-loops -Wall -Wextra -std=c99
+            lib_deps: |
+              - name: Time
+          - fqbn: teensy:avr:teensy35
+            artifact-name-suffix: teensy-avr-teensy35
+            platform: |
+              - source-url: https://www.pjrc.com/teensy/package_teensy_index.json
+                name: teensy:avr
+            compile-flags: |
+              - --build-property
+              - build..extra_flags="-Wall"
+            lib_deps: |
+              - name: SDfat
+          - fqbn: teensy:avr:teensy41
+            artifact-name-suffix: teensy-avr-teensy41
+            platform: |
+              - source-url: https://www.pjrc.com/teensy/package_teensy_index.json
+                name: teensy:avr
+            compile-flags: |
+              - --build-property
+              - build..extra_flags="-Wall"
+            lib_deps: |
+              - name: SDfat
+          - fqbn: STMicroelectronics:stm32:GenF4
+            artifact-name-suffix: stm32-avr-stm32f4
+            platform: |
+              - source-url: https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json
+                name: STMicroelectronics:stm32
+                version: 2.7.1
+            compile-flags: |
+              - --build-property
+              - build.extra_flags=-DUSE_LIBDIVIDE -DUSBCON -DUSBD_USE_CDC -DHAL_PCD_MODULE_ENABLED -DHAL_CAN_MODULE_ENABLED -DSERIAL_TX_BUFFER_SIZE=128 -DSERIAL_RX_BUFFER_SIZE=128 -std=gnu++11 -UBOARD_MAX_IO_PINS
+            lib_deps: |
+              - name: "STM32duino RTC"
+                version: 1.2.0
+              - name: SdFat
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Compile platforms
+        uses: arduino/compile-sketches@v1.1.2
+        with:
+          fqbn: ${{ matrix.board.fqbn }}
+          enable-deltas-report: true
+          sketches-report-path: ${{ env.SKETCHES_REPORTS_PATH }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          sketch-paths: |
+            - speeduino/speeduino.ino
+          platforms: |
+            ${{ matrix.board.platform }}
+          cli-compile-flags: |
+            ${{ matrix.board.compile-flags }}
+          libraries: |
+            ${{ matrix.board.lib_deps }}
+
+      # This step is needed to pass the size data to the report job.
+      - name: Upload sketches report to workflow artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: sketches-report-${{ matrix.board.artifact-name-suffix }}
+          path: ${{ env.SKETCHES_REPORTS_PATH }}

.github/workflows/pr-memory-deltas-report.yaml

@@ -0,0 +1,24 @@
+name: Report Size Deltas
+
+# See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
+on:
+  push:
+    paths:
+      - ".github/workflows/pr-memory-deltas-report.yaml"
+  schedule:
+    # Run at the minimum interval allowed by GitHub Actions.
+    # Note: GitHub Actions periodically has outages which result in workflow failures.
+    # In this event, the workflows will start passing again once the service recovers.
+    - cron: "*/5 * * * *"
+  workflow_dispatch:
+  repository_dispatch:
+
+jobs:
+  report:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Comment size deltas reports to PRs
+        uses: arduino/report-size-deltas@v1
+        with:
+          # The name of the workflow artifact created by the sketch compilation workflow
+          sketches-reports-source: ^sketches-report-.+