add dockerfile for weston upstream building

ref commaai#16

weston/.gitignore

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+enable-apt

weston/Dockerfile.weston

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+FROM agnos-builder-rw as weston-builder
+
+RUN curl https://bootstrap.pypa.io/get-pip.py | python3
+RUN pip install meson ninja
+
+COPY enable-apt/var/lib/apt /var/lib/apt
+COPY enable-apt/etc/apt /etc/apt
+RUN sudo apt update
+RUN apt install -y libpam0g-dev:armhf libdrm-dev:armhf wayland-protocols:armhf
+
+
+#Create a workspace
+RUN mkdir /root/workspace
+RUN mkdir /weston-prefix
+
+# clone latest DRM
+RUN git clone https://gitlab.freedesktop.org/mesa/drm.git /root/workspace/libdrm
+WORKDIR /root/workspace/libdrm
+RUN meson builddir/
+RUN ninja -C builddir/ install
+
+# RUN git clone https://gitlab.freedesktop.org/wayland/wayland-protocols.git /root/workspace/wayland-protocols
+# WORKDIR /root/workspace/wayland-protocols
+# RUN meson builddir/
+# RUN ninja -C builddir/ install
+
+RUN git clone https://github.com/linux-pam/linux-pam.git /root/workspace/linux-pam
+WORKDIR /root/workspace/linux-pam
+RUN apt install -y autopoint:armhf gettext:armhf
+RUN ./autogen.sh
+RUN ./configure --disable-regenerate-docu --disable-doc
+RUN apt install -y byacc 
+RUN apt install -y flex
+RUN make -j
+
+# clone latest Weston
+RUN git clone https://gitlab.freedesktop.org/wayland/weston /root/workspace/weston
+WORKDIR /root/workspace/weston
+RUN meson -Dimage-webp=false builddir/ --prefix=/weston-prefix
+RUN ninja -C builddir/ install
+

weston/build.sh

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+#!/bin/bash
+roimgtag=agnos-builder
+rwimgtag=agnos-builder-rw
+if ! docker images | grep -q $rwimgtag; then
+  if ! docker images | grep -q $roimgtag; then
+    echo "you need to build the system first to get docker image $roimgtag" 1>&2
+    exit 1;
+  fi
+  rwimglayerid=$(docker history agnos-builder | grep 'tmptmp' | grep 0B | awk '{print$1}')
+  docker tag $rwimglayerid $rwimgtag
+fi
+
+ubtarball=../ubuntu-base-20.04.1-base-arm64.tar.gz
+if [[ ! -d enable-apt ]]; then
+  if [[ ! -f $ubtarball ]]; then
+    echo "you need to build the system first to get $utarball" 1>&2
+    exit 1;
+  fi
+  mkdir enable-apt
+  tar -C ./enable-apt -zxf $ubtarball {etc,var/lib}/apt
+fi
+docker build -f Dockerfile.weston -t weston-builder .

weston/shell-last.sh

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+#!/bin/bash
+lastimg=$(docker images | head -n2 | tail -n1 | awk '{print $3}')
+
+docker run --rm -it $lastimg bash