Exclude .git directories from the source RPMS

Ignore .git directory when creating debian sources

Added missing DOCKER_GITCOMMIT env variable to build-deb

Signed-off-by: Ken Cochrane <kencochrane@gmail.com>

hack/make/build-deb

@@ -58,6 +58,7 @@ set -e
 			FROM $image
 			WORKDIR /usr/src/docker
 			COPY . /usr/src/docker
+			ENV DOCKER_GITCOMMIT $GITCOMMIT
 			RUN mkdir -p /go/src/github.com/docker && mkdir -p /go/src/github.com/opencontainers \
 				&& ln -snf /usr/src/docker /go/src/github.com/docker/docker
 		EOF
@@ -96,7 +97,7 @@ set -e
 			;;
 		esac
 		cat >> "$DEST/$version/Dockerfile.build" <<-EOF
-			RUN dpkg-buildpackage -uc -us
+			RUN dpkg-buildpackage -uc -us -I.git
 		EOF
 		tempImage="docker-temp/build-deb:$version"
 		( set -x && docker build -t "$tempImage" -f "$DEST/$version/Dockerfile.build" . )

hack/make/build-rpm

@@ -117,9 +117,9 @@ set -e
 			WORKDIR /root/rpmbuild
 			RUN ln -sfv /usr/src/${rpmName}/hack/make/.build-rpm SPECS
 			WORKDIR /root/rpmbuild/SPECS
-			RUN tar -r -C /usr/src -f /root/rpmbuild/SOURCES/${rpmName}.tar ${rpmName}
-			RUN tar -r -C /go/src/github.com/docker -f /root/rpmbuild/SOURCES/${rpmName}.tar containerd
-			RUN tar -r -C /go/src/github.com/opencontainers -f /root/rpmbuild/SOURCES/${rpmName}.tar runc
+			RUN tar --exclude .git -r -C /usr/src -f /root/rpmbuild/SOURCES/${rpmName}.tar ${rpmName}
+			RUN tar --exclude .git -r -C /go/src/github.com/docker -f /root/rpmbuild/SOURCES/${rpmName}.tar containerd
+			RUN tar --exclude .git -r -C /go/src/github.com/opencontainers -f /root/rpmbuild/SOURCES/${rpmName}.tar runc
 			RUN gzip /root/rpmbuild/SOURCES/${rpmName}.tar
 			RUN { cat /usr/src/${rpmName}/contrib/builder/rpm/${PACKAGE_ARCH}/changelog; } >> ${rpmName}.spec && tail >&2 ${rpmName}.spec
 			RUN rpmbuild -ba \