add .gitlab-ci.yml

.gitlab-ci.yml

+image: debian:bookworm-slim
+
+build:
+  script: |
+    set -x
+    apt-get update -o Acquire::AllowReleaseInfoChange=true -o quiet::ReleaseInfoChange=true
+    apt-get --no-install-recommends -y install sbuild build-essential fakeroot mmdebstrap uidmap debhelper dh-dkms
+    adduser --comment build --disabled-password build
+    runuser -u build -- sh -c 'echo "\$chroot_mode = \"unshare\";1;" > ~/.sbuildrc'
+    runuser -u build -- sh -c 'mkdir -p ~/.cache/sbuild'
+    runuser -u build -- sh -c 'mmdebstrap --variant=buildd --mode=unshare unstable ~/.cache/sbuild/unstable-$(dpkg --print-architecture).tar'
+    runuser -u build -- sh -c 'sbuild -d unstable --verbose'
+    debversion="$(dpkg-parsechangelog -SVersion)"
+    mv ../reform-tools_${debversion}_amd64.changes ../reform-tools_${debversion}_amd64.buildinfo ../reform-tools_${debversion}_all.deb ../reform2-lpc-dkms_${debversion}_all.deb ../reform-tools_${debversion}.tar.xz ../reform-tools_${debversion}.dsc .
+  artifacts:
+    paths:
+      - reform-tools_*_amd64.changes
+      - reform-tools_*_amd64.buildinfo
+      - reform-tools_*_all.deb
+      - reform2-lpc-dkms_*_all.deb
+      - reform-tools_*.tar.xz
+      - reform-tools_*.dsc