Add compress script

Author: Matteo-it

.github/workflows/preview.yml

@@ -12,8 +12,72 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  image-size-check:
+    name: Image Size Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v44
+
+      - name: Enforce Image Size Limits on Changed Files
+        if: steps.changed-files.outputs.all_changed_files
+        run: |
+          #!/bin/bash
+          set -e
 
-   # This job is used to render datasheets, but only if they have changed.
+          # Input from the previous step
+          CHANGED_FILES="${{ steps.changed-files.outputs.all_changed_files }}"
+
+          IMAGE_LIMIT_MB=2
+          GIF_LIMIT_MB=10
+
+          OVERSIZED_IMAGES=""
+          OVERSIZED_GIFS=""
+
+          for file in $CHANGED_FILES; do
+            if [[ "$file" == *.png || "$file" == *.jpg || "$file" == *.jpeg || "$file" == *.svg ]]; then
+              size_in_bytes=$(stat -c%s "$file")
+              limit_in_bytes=$((IMAGE_LIMIT_MB * 1024 * 1024))
+              if [ "$size_in_bytes" -gt "$limit_in_bytes" ]; then
+                size_human=$(ls -lh "$file" | awk '{print $5}')
+                OVERSIZED_IMAGES+="  - $file ($size_human)\n"
+              fi
+            elif [[ "$file" == *.gif ]]; then
+              size_in_bytes=$(stat -c%s "$file")
+              limit_in_bytes=$((GIF_LIMIT_MB * 1024 * 1024))
+              if [ "$size_in_bytes" -gt "$limit_in_bytes" ]; then
+                size_human=$(ls -lh "$file" | awk '{print $5}')
+                OVERSIZED_GIFS+="  - $file ($size_human)\n"
+              fi
+            fi
+          done
+
+          # --- Report errors if any oversized files are found ---
+          ERROR_MESSAGE=""
+          if [ -n "$OVERSIZED_IMAGES" ]; then
+            ERROR_MESSAGE+="Found images exceeding the ${IMAGE_LIMIT_MB}MB limit:\n"
+            ERROR_MESSAGE+="${OVERSIZED_IMAGES}"
+          fi
+
+          if [ -n "$OVERSIZED_GIFS" ]; then
+            ERROR_MESSAGE+="Found GIFs exceeding the ${GIF_LIMIT_MB}MB limit:\n"
+            ERROR_MESSAGE+="${OVERSIZED_GIFS}"
+          fi
+
+          if [ -n "$ERROR_MESSAGE" ]; then
+            echo -e "::error::Oversized images found in this PR. Please optimize or remove them.\n"
+            echo -e "--------------------------------------------------"
+            echo -e "$ERROR_MESSAGE"
+            echo -e "--------------------------------------------------"
+            exit 1
+          else
+            echo "All changed images are within their size limits. Check passed."
+          fi
+  # This job is used to render datasheets, but only if they have changed.
   # It's a separate job so we don't have to cleanup the machine afterwards.
   render-datasheets:
     name: Render Datasheets
@@ -89,20 +153,6 @@ jobs:
           find ./content/hardware -type f -name "*-pinout.png" -exec cp {} ./static/resources/pinouts/ \;
           find ./content/hardware -type f -name "*-step.zip" -exec cp {} ./static/resources/models/ \;
 
-      - name: Check for large files
-        run: |
-          find content -type f \( -name "*.png" -o -name "*.jpg" -o -name "*.jpeg" -o -name "*.svg" -o -name "*.gif" \) -size +2M -print0 |
-          while IFS= read -r -d $'\0' file; do
-            size=$(ls -lh "$file" | awk '{print $5}')
-            echo "::warning file=$file::File '$file' is very large: $size. Consider optimizing it."
-          done
-
-          find content -type f \( -name "*.pdf" -o -name "*.zip" -o -name "*.mp4" \) -size +10M -print0 |
-          while IFS= read -r -d $'\0' file; do
-            size=$(ls -lh "$file" | awk '{print $5}')
-            echo "::warning file=$file::File '$file' is very large: $size. This can impact repository size and checkout times."
-          done
-
       # - name: Fail on Oversized Files
       #   id: fail_on_oversized_files
       #   run: |