Fix Armv7 Docker build

.github/workflows/ci.yml

@@ -316,14 +316,6 @@ jobs:
       -
         name: Set up QEMU
         uses: docker/setup-qemu-action@v1
-      -
-        name: Cache Docker layers
-        uses: actions/cache@v2
-        with:
-          path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-${{ github.sha }}
-          restore-keys: |
-            ${{ runner.os }}-buildx-
       -
         name: Login to Github Container Registry
         uses: docker/login-action@v1
@@ -340,8 +332,8 @@ jobs:
           platforms: linux/amd64,linux/arm/v7,linux/arm64
           push: true
           tags: ${{ steps.prepare.outputs.tags }}
-          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-from: type=gha
-          cache-to: type=local,dest=/tmp/.buildx-cache
+          cache-to: type=gha,mode=max
       -
         name: Inspect image
         run: |

Dockerfile

@@ -8,6 +8,7 @@ RUN git clone https://github.com/agl/jbig2enc .
 RUN ./autogen.sh
 RUN ./configure && make
 
+
 FROM python:3.9-slim-bullseye
 
 # Binary dependencies
@@ -39,7 +40,6 @@ RUN apt-get update \
 		media-types \
 		# OCRmyPDF dependencies
 		liblept5 \
-		qpdf \
 		tesseract-ocr \
 		tesseract-ocr-eng \
 		tesseract-ocr-deu \
@@ -62,11 +62,26 @@ RUN apt-get update \
   && apt-get -y --no-install-recommends install \
 		build-essential \
 		libpq-dev \
-		libqpdf-dev \
+		git \
-	&& python3 -m pip install --upgrade pip setuptools wheel \
+		zlib1g-dev \
+		libjpeg62-turbo-dev \
+	&& if [ "$(uname -m)" = "armv7l" ]; \
+	  then echo "Building qpdf" \
+	  && mkdir -p /usr/src/qpdf \
+	  && cd /usr/src/qpdf \
+	  && git clone https://github.com/qpdf/qpdf.git . \
+	  && git checkout --quiet release-qpdf-10.6.2 \
+	  && ./configure \
+	  && make \
+	  && make install \
+	  && cd /usr/src/paperless/src/ \
+	  && rm -rf /usr/src/qpdf; \
+	else \
+	  echo "Skipping qpdf build because pikepdf binary wheels are available."; \
+	fi \
 	&& python3 -m pip install --default-timeout=1000 --upgrade --no-cache-dir supervisor \
   && python3 -m pip install --default-timeout=1000 --no-cache-dir -r ../requirements.txt \
-	&& apt-get -y purge build-essential libqpdf-dev \
+	&& apt-get -y purge build-essential git zlib1g-dev libjpeg62-turbo-dev \
 	&& apt-get -y autoremove --purge \
 	&& rm -rf /var/lib/apt/lists/*