Add check_dilate

.github/workflows/style.yml

@@ -14,13 +14,28 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v2
-    - name: Install clang-format
+      with:
+        submodules: true
+    - name: Prepare
       run: |
         sudo apt-get update -y
-        sudo apt-get install clang-format -y
+        sudo apt-get install clang-format imagemagick ddnet-tools -y
     - name: Check style
       run: |
         clang-format -version
         scripts/fix_style.py --dry-run
         scripts/check_header_guards.py
         scripts/languages/update_all.py
+    - name: Prepare build dilate
+      run: |
+        sudo apt-get update -y
+        sudo apt-get install pkg-config cmake libfreetype6-dev libnotify-dev libsdl2-dev libsqlite3-dev -y
+    - name: Build dilate
+      run: |
+        mkdir release
+        cd release
+        cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DDOWNLOAD_GTEST=OFF -DCMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE=. ..
+        cmake --build . --config Release --target dilate --parallel
+    - name: Check if images are dilated
+      run: |
+        scripts/check_dilate.sh release data

scripts/check_dilate.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+#set -x
+result=
+
+dil_path=$1
+
+result=$(find $2 -iname '*.png' -print0 | while IFS= read -r -d $'\0' file; do
+	new_file=$(mktemp --tmpdir "$(basename "$file" .png).XXX.png")
+	cp "$file" "$new_file"
+	convert "$new_file" "${new_file}_old.bmp" >> /dev/null
+	${dil_path}/dilate "$new_file" >> /dev/null
+	convert "$new_file" "${new_file}_new.bmp" >> /dev/null
+	orig_hash=$(identify -quiet -format "%#" "${new_file}_old.bmp")
+	new_hash=$(identify -quiet -format "%#" "${new_file}_new.bmp")
+	rm "$new_file"
+	rm "${new_file}_old.bmp"
+	rm "${new_file}_new.bmp"
+	if [ "$orig_hash" != "$new_hash" ]; then
+		printf "$file is not dilated\n"
+	fi
+done)
+
+if [[ "$result" != "" ]]; then
+	printf "$result"
+	exit 1
+fi
+
+exit 0