Simplify file naming.

Author: vext01

.buildbot.sh

@@ -12,15 +12,13 @@ ulimit -d $((1024 * 1024 * 8)) # 8 GiB
     RUST_BACKTRACE=1 ./x.py test --config .buildbot.toml
 
 # Archive the build and put it in /opt
-GIT_HASH=`git rev-parse --short HEAD`
 TARBALL_TOPDIR=ykrustc-stage2
-TARBALL_NAME=ykrustc-stage2-${GIT_HASH}.tar.bz2
+TARBALL_NAME=ykrustc-stage2-latest.tar.bz2
 SNAP_DIR=/opt/ykrustc-bin-snapshots
 
 cd build/x86_64-unknown-linux-gnu
 ln -sf stage2 ${TARBALL_TOPDIR}
 git show -s HEAD > ${TARBALL_TOPDIR}/VERSION
 tar hjcvf ${TARBALL_NAME} ${TARBALL_TOPDIR}
 chmod 775 ${TARBALL_NAME}
-rm -f ${SNAP_DIR}/ykrustc-stage2-*.tar.bz2
-mv ${TARBALL_NAME} ${SNAP_DIR}
+mv ${TARBALL_NAME} ${SNAP_DIR} # Overwrites any old archive.