- # Variables read:
- # - VPP_DIR - Path to WORKSPACE, parent of created directories.
- # Directories created:
- # - csit_current - Holding test results of the patch under test (PUT).
- # - csit_parent - Holding test results of parent of PUT.
- # Functions called:
- # - die - Print to stderr and exit, defined in common.sh
-
- set -exuo pipefail
-
- cd "${VPP_DIR}" || die "Change directory operation failed."
- rm -rf "csit_current" "csit_parent" || {
- die "Directory deletion failed."
- }
- mkdir -p "csit_current" "csit_parent" || {
- die "Directory creation failed."
- }
+ # The logic is too complex to remain in the entry script.
+ #
+ # At the start, the loop assumes git bisect old/new has just been executed,
+ # and verified more iterations are needed.
+ # The iteration cleans the build directory and builds the new mid commit.
+ # Then, testbed is reserved, tests run, and testbed unreserved.
+ # Results are moved from default to archive location
+ # (indexed by iteration number) and analyzed.
+ # The new adjective ("old" or "new") is selected,
+ # and git bisect with the adjective is executed.
+ # The symlinks csit_early and csit_late are updated to tightest bounds.
+ # The git.log file is examined and if the bisect is finished, loop ends.
+
+ iteration=0
+ while true
+ do
+ let iteration+=1
+ git clean -dffx "build"/ "build-root"/ || die
+ build_vpp_ubuntu "MIDDLE" || die
+ select_build "build-root" || die
+ check_download_dir || die
+ reserve_and_cleanup_testbed || die
+ run_robot || die
+ move_test_results "csit_middle/${iteration}" || die
+ untrap_and_unreserve_testbed || die
+ rm -vf "csit_mid" || die
+ ln -s -T "csit_middle/${iteration}" "csit_mid" || die
+ set +e
+ python3 "${TOOLS_DIR}/integrated/compare_bisect.py"
+ bisect_rc="${?}"
+ set -e
+ if [[ "${bisect_rc}" == "3" ]]; then
+ adjective="new"
+ rm -v "csit_late" || die
+ ln -s -T "csit_middle/${iteration}" "csit_late" || die
+ elif [[ "${bisect_rc}" == "0" ]]; then
+ adjective="old"
+ rm -v "csit_early" || die
+ ln -s -T "csit_middle/${iteration}" "csit_early" || die
+ else
+ die "Unexpected return code: ${bisect_rc}"
+ fi
+ git bisect "${adjective}" | tee "git.log" || die
+ git describe || die
+ git status || die
+ if head -n 1 "git.log" | cut -b -11 | fgrep -q "Bisecting:"; then
+ echo "Still bisecting..."
+ else
+ echo "Bisecting done."
+ break
+ fi
+ done