ci: Add Docker image files

There's no real benefit in hosting the Dockerfile in an external
repository.

.travis.yml

@@ -27,6 +27,6 @@ before_script:
   - docker build -t withgit .
 
 script:
-  - docker run withgit /bin/sh -c "cd /root && CC=$CC ./epoxy-run-tests.sh"
-  - docker run withgit /bin/sh -c "cd /root && CC=$CC ./epoxy-run-tests.sh -Denable-glx=no"
-  - docker run withgit /bin/sh -c "cd /root && CC=$CC ./epoxy-run-tests.sh -Denable-egl=no"
+  - docker run withgit /bin/sh -c "CC=$CC ./epoxy-run-tests.sh"
+  - docker run withgit /bin/sh -c "CC=$CC ./epoxy-run-tests.sh -Denable-glx=no"
+  - docker run withgit /bin/sh -c "CC=$CC ./epoxy-run-tests.sh -Denable-egl=no"

.travis/Dockerfile

@@ -0,0 +1,31 @@
+FROM debian:stretch-slim
+MAINTAINER Emmanuele Bassi <ebassi@gmail.com>
+
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -qq -y \
+        ca-certificates \
+        clang \
+        gcc \
+        libgl1-mesa-dev \
+        libegl1-mesa-dev \
+        libgles1-mesa-dev \
+        libgles2-mesa-dev \
+        libgl1-mesa-dri \
+        locales \
+        ninja-build \
+        pkg-config \
+        python3 \
+        python3-pip \
+        python3-setuptools \
+        python3-wheel \
+        xvfb && \
+        rm -rf /usr/share/doc/* /usr/share/man/*
+
+RUN locale-gen C.UTF-8 && /usr/sbin/update-locale LANG=C.UTF-8
+ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8
+
+RUN pip3 install meson
+
+WORKDIR /root
+
+COPY epoxy-run-tests.sh .

.travis/epoxy-run-tests.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Start Xvfb
+XVFB_WHD=${XVFB_WHD:-1280x720x16}
+
+Xvfb :99 -ac -screen 0 $XVFB_WHD -nolisten tcp &
+xvfb=$!
+
+export DISPLAY=:99
+
+mkdir _build
+
+meson --prefix /usr "$@" _build . || exit $?
+ninja -C _build || exit $?
+meson test -C _build || exit $?
+
+rm -rf _build
+
+# Stop Xvfb
+kill -9 ${xvfb}

.travis/run-docker.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+set -xe
+
+srcdir="$(pwd)/.."
+
+sudo docker build \
+        --tag "epoxyci" \
+        --file "Dockerfile" .
+sudo docker run --rm \
+        --volume "${srcdir}:/root/epoxy" \
+        --tty --interactive "epoxyci" bash