perf: emit progress output when unpacking & building

Amend the t/perf/run output so that in addition to the "Running N
tests" heading currently being emitted, it also emits "Unpacking $rev"
and "Building $rev" when setting up the build/$rev directory & when
building it, respectively.

This makes it easier to see what's going on and what revision is being
tested as the output scrolls by.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/perf/run b/t/perf/run
index b61024a830a02cace4f9d6720428f2cf562fd5c5..beb4acc0e428d20280a649c428da8b0b3aa5b4c6 100755 (executable)
--- a/t/perf/run
+++ b/t/perf/run
@@ -24,6 +24,7 @@ run_one_dir () {
 
 unpack_git_rev () {
        rev=$1
+       echo "=== Unpacking $rev in build/$rev ==="
        mkdir -p build/$rev
        (cd "$(git rev-parse --show-cdup)" && git archive --format=tar $rev) |
        (cd build/$rev && tar x)
@@ -37,6 +38,7 @@ build_git_rev () {
                        cp "../../$config" "build/$rev/"
                fi
        done
+       echo "=== Building $rev ==="
        (
                cd build/$rev &&
                if test -n "$GIT_PERF_MAKE_COMMAND"