Initial commit to build Docker CI images for mat2

.gitlab-ci.yml

+---
+image: docker:latest
+services:
+  - docker:dind
+stages:
+  - build
+variables:
+  DOCKER_DRIVER: overlay2
+
+.build-docker-image: &build-docker-image
+  script:
+    # Disable bash history to prevent the $CI_JOB_TOKEN to be recorded and saved
+    - unset HISTFILE
+    - echo $CI_JOB_TOKEN | docker login -u gitlab-ci-token --password-stdin $CI_REGISTRY
+    - export IMAGE_TAG=$CI_REGISTRY_IMAGE:$CI_JOB_NAME
+    - docker pull $IMAGE_TAG || /bin/true
+    - docker build --cache-from $IMAGE_TAG --file $CI_JOB_NAME --tag $IMAGE_TAG .
+    - docker push $IMAGE_TAG
+    # Docker stores the above used password in cleartext in this config
+    - rm /root/.docker/config.json
+  stage: build
+
+archlinux:
+  <<: *build-docker-image
+
+debian:
+  <<: *build-docker-image
+
+fedora:
+  <<: *build-docker-image
+
+linting:
+  <<: *build-docker-image

archlinux

+FROM archlinux/base
+
+RUN pacman -Sy --noconfirm \
+    ffmpeg \
+    gdk-pixbuf2 \
+    mailcap \
+    perl-image-exiftool \
+    poppler-glib \
+    python-cairo \
+    python-gobject \
+    python-mutagen \
+    python-setuptools

debian

+FROM debian:unstable
+
+RUN apt-get update \
+&&  apt-get install --no-install-recommends --no-install-suggests --yes \
+    bubblewrap \
+    ffmpeg \ 
+    gir1.2-gdkpixbuf-2.0 \
+    gir1.2-poppler-0.18 \
+    libimage-exiftool-perl \
+    python3-bandit \
+    python3-gi-cairo \
+    python3-mutagen \
+    python3-coverage \
+&&  rm -rf /var/cache/apt/* /var/lib/apt/lists/*

fedora

+FROM fedora
+
+RUN dnf install -y \
+    cairo \
+    cairo-gobject \
+    gdk-pixbuf2 \
+    gdk-pixbuf2-modules \
+    mailcap \
+    perl-Image-ExifTool \
+    poppler-glib \
+    python3 \
+    python3-cairo \
+    python3-gobject \
+    python3-mutagen \
+&&  gdk-pixbuf-query-loaders-64 > /usr/lib64/gdk-pixbuf-2.0/2.10.0/loaders.cache

linting

+FROM debian:unstable
+
+RUN apt-get update \
+&&  apt-get install --no-install-recommends --no-install-suggests --yes \
+    gir1.2-gdkpixbuf-2.0 \
+    gir1.2-poppler-0.18 \
+    pyflakes3 \
+    pylint3 \
+    python3-bandit \
+    python3-gi-cairo \
+    python3-mutagen \
+    python3-pip \
+&&  rm -rf /var/cache/apt/* /var/lib/apt/lists/* \
+&&  pip3 install mypy