Don't upload multiple times to same artifact in sketch compilation workflow

The "Compile Examples" GitHub Actions workflow is configured to compile the example sketches for each of the supported
boards. This is done by using a job matrix in the GitHub Actions workflow to generate a parallel job for each board.

A GitHub Actions workflow artifact is used to transfer the sketches report files generated by the
"arduino/compile-sketches" action between this workflow's job and the "Report Size Deltas" workflow that uses the
"arduino/report-size-deltas" action to publish the data. The "actions/upload-artifact" action is used to upload the
sketches report files to the workflow artifact.

Previously, the sketches reports from all the boards were uploaded to a single artifact. However, support for uploading
multiple times to a single artifact was dropped in version 4.0.0 of the "actions/upload-artifact" action. So it is now
necessary for each of the jobs to use a separate artifact. The "arduino/report-size-deltas" action is configured to
recognize these multiple artifacts by a regular expression that matches against a standardized prefix on the artifact
names.

Author: per1234

.github/workflows/compile-platform-examples.yml

@@ -35,117 +35,155 @@ jobs:
       matrix:
         board:
           - fqbn: arduino:avr:yun
+            artifact-name-suffix: arduino-avr-yun
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:uno
+            artifact-name-suffix: arduino-avr-uno
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:diecimila:cpu=atmega328
+            artifact-name-suffix: arduino-avr-diecimila-cpu-atmega328
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:diecimila:cpu=atmega168
+            artifact-name-suffix: arduino-avr-diecimila-cpu-atmega168
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:nano:cpu=atmega328
+            artifact-name-suffix: arduino-avr-nano-cpu-atmega328
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:nano:cpu=atmega328old
+            artifact-name-suffix: arduino-avr-nano-cpu-atmega328old
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:nano:cpu=atmega168
+            artifact-name-suffix: arduino-avr-nano-cpu-atmega168
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:mega:cpu=atmega2560
+            artifact-name-suffix: arduino-avr-mega-cpu-atmega2560
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:mega:cpu=atmega1280
+            artifact-name-suffix: arduino-avr-mega-cpu-atmega1280
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:megaADK
+            artifact-name-suffix: arduino-avr-megaADK
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:leonardo
+            artifact-name-suffix: arduino-avr-leonardo
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:leonardoeth
+            artifact-name-suffix: arduino-avr-leonardoeth
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:micro
+            artifact-name-suffix: arduino-avr-micro
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:esplora
+            artifact-name-suffix: arduino-avr-esplora
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:mini:cpu=atmega328
+            artifact-name-suffix: arduino-avr-mini-cpu-atmega328
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:mini:cpu=atmega168
+            artifact-name-suffix: arduino-avr-mini-cpu-atmega168
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:ethernet
+            artifact-name-suffix: arduino-avr-ethernet
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:fio
+            artifact-name-suffix: arduino-avr-fio
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:bt:cpu=atmega328
+            artifact-name-suffix: arduino-avr-bt-cpu-atmega328
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:bt:cpu=atmega168
+            artifact-name-suffix: arduino-avr-bt-cpu-atmega168
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:LilyPadUSB
+            artifact-name-suffix: arduino-avr-LilyPadUSB
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:lilypad:cpu=atmega328
+            artifact-name-suffix: arduino-avr-lilypad-cpu-atmega328
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:lilypad:cpu=atmega168
+            artifact-name-suffix: arduino-avr-lilypad-cpu-atmega168
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:pro:cpu=16MHzatmega328
+            artifact-name-suffix: arduino-avr-pro-cpu-16MHzatmega328
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:pro:cpu=8MHzatmega328
+            artifact-name-suffix: arduino-avr-pro-cpu-8MHzatmega328
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:pro:cpu=16MHzatmega168
+            artifact-name-suffix: arduino-avr-pro-cpu-16MHzatmega168
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:pro:cpu=8MHzatmega168
+            artifact-name-suffix: arduino-avr-pro-cpu-8MHzatmega168
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:atmegang:cpu=atmega168
+            artifact-name-suffix: arduino-avr-atmegang-cpu-atmega168
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:atmegang:cpu=atmega8
+            artifact-name-suffix: arduino-avr-atmegang-cpu-atmega8
             serial: true
             softwareserial: false
           - fqbn: arduino:avr:robotControl
+            artifact-name-suffix: arduino-avr-robotControl
             serial: true
             softwareserial: false
           - fqbn: arduino:avr:robotMotor
+            artifact-name-suffix: arduino-avr-robotMotor
             serial: true
             softwareserial: false
           - fqbn: arduino:avr:gemma
+            artifact-name-suffix: arduino-avr-gemma
             serial: false
             softwareserial: false
           - fqbn: arduino:avr:circuitplay32u4cat
+            artifact-name-suffix: arduino-avr-circuitplay32u4cat
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:yunmini
+            artifact-name-suffix: arduino-avr-yunmini
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:chiwawa
+            artifact-name-suffix: arduino-avr-chiwawa
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:one
+            artifact-name-suffix: arduino-avr-one
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:unowifi
+            artifact-name-suffix: arduino-avr-unowifi
             serial: true
             softwareserial: true
           - fqbn: arduino:avr:unomini
+            artifact-name-suffix: arduino-avr-unomini
             serial: true
             softwareserial: true
 
@@ -206,4 +244,4 @@ jobs:
         with:
           if-no-files-found: error
           path: ${{ env.SKETCHES_REPORTS_PATH }}
-          name: ${{ env.SKETCHES_REPORTS_PATH }}
+          name: sketches-report-${{ matrix.board.artifact-name-suffix }}

.github/workflows/report-size-deltas.yml

@@ -20,5 +20,5 @@ jobs:
       - 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-reports
+          # Regex matching the names of the workflow artifacts created by the "Compile Examples" workflow
+          sketches-reports-source: ^sketches-report-.+