areusch commented on a change in pull request #10246:
URL: https://github.com/apache/tvm/pull/10246#discussion_r816197791



##########
File path: tests/scripts/task_build.sh
##########
@@ -15,5 +15,41 @@
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
 # under the License.
-export VTA_HW_PATH=`pwd`/3rdparty/vta-hw
-cd $1 && cmake .. -DCMAKE_BUILD_TYPE=RelWithDebInfo && make $2 && cd ..
+set -eux
+
+VTA_HW_PATH=$(pwd)/3rdparty/vta-hw
+export VTA_HW_PATH
+
+pushd "$1"
+
+# Set up sccache to use S3
+if [ -n "${3+x}" ] && which sccache; then

Review comment:
       i see, what i'm worried about is a performance regression if someone 
accidentally removes sccache from CI and then not catching it. it seems like 
this should maybe be like
   
   ```
   if [ -n"${3+x}" ]; then
     sccache_location=$(which sccache)
     if [ -n "${CI+x}" -a "x${sccache_location}" == "x" ]; then
       echo "expected sccache but it was not found; aborting since build is 
running in CI"
       exit 2
     fi
   fi
   ```
   
   and then we should manually mark which images we expect it as a hack til we 
rebuild them all. wdyt?




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