Computed-roots evaluation: improve reporting

For subcomputations add the log to CAS and only report the blob
identifier. Also, indicate at the beginning, that computed roots are
to be computed. While there, simplify code by using the ToString()
method of computed roots.

1 files changed, 16 insertions, 1 deletions

diff --git a/test/end-to-end/computed-roots/basic.sh b/test/end-to-end/computed-roots/basic.sh
index 70ed2948..20fec921 100644
--- a/test/end-to-end/computed-roots/basic.sh
+++ b/test/end-to-end/computed-roots/basic.sh
@@ -111,10 +111,25 @@ echo Building a different computed root, without reference build
 echo
 "${JUST}" install -L '["env", "PATH='"${PATH}"'"]' \
     --local-build-root "${LBRDIR}" -C repo-config.json \
-    --log-limit 4 --main 'other derived' -o "${OUT}/other-derived" 2>&1
+    --log-limit 4 -f "${OUT}/log" \
+    --main 'other derived' -o "${OUT}/other-derived" 2>&1
 echo
 
 [ "$(cat "${OUT}/other-derived/out" | wc -l)" -eq 78 ]
 
+echo
+echo Sanity-check of the log
+echo
+grep '[Rr]oot.*base.*evaluted.*' "${OUT}/log"  > "${TMPDIR}/log_line"
+cat "${TMPDIR}/log_line"
+sed -i 's/.*log //' "${TMPDIR}/log_line"
+"${JUST}" install-cas --local-build-root "${LBRDIR}" \
+    -o "${OUT}/log.root" $(cat "${TMPDIR}/log_line")
+echo
+cat "${OUT}/log.root"
+echo
+grep 'COUNT.*12' "${OUT}/log.root"
+grep '[Dd]iscovered.*1 action' "${OUT}/log.root"
+grep '0 cache hit' "${OUT}/log.root"
 
 echo OK