git pbuilder

 DIST=jessie ARCH=amd64 git pbuilder create/update

git-buildpackage

tagging

git tag -a 1.0.8 7ec8b8444ef924f2ec1566ce695b02341ff6af36

building

APT_USE_BUILT=yes GIT_PBUILDER_OUTPUT_DIR=/var/cache/pbuilder/result/jessie-amd64 ARCH=amd64 DIST=jessie WIKIMEDIA=yes git-buildpackage -j8 -us -uc -sa --git-builder=git-pbuilder --git-debian-branch=debian-v4 --git-upstream-branch=apiv4