feat(vpp): add a new job for bisecting

Change-Id: I8856e5cde4b85edd01a2c10af88823890c3afcb1
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

2 files changed, 43 insertions, 5 deletions

diff --git a/jjb/scripts/vpp/copy_archives.sh b/jjb/scripts/vpp/copy_archives.sh
index d69ca7e48..dafcd4aef 100644
--- a/jjb/scripts/vpp/copy_archives.sh
+++ b/jjb/scripts/vpp/copy_archives.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-# Copyright (c) 2021 Cisco and/or its affiliates.
+# Copyright (c) 2023 Cisco and/or its affiliates.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at:
@@ -30,9 +30,9 @@ set +e
 # Variables read:
 # - WORKSPACE - Jenkins workspace to create csit subdirectory in.
 # Directories updated:
-# - ${WORKSPACE}/archives/csit_current - Current patch results are copied here.
-# - ${WORKSPACE}/archives/csit_parent - Parent patch results are copied here.
+# - ${WORKSPACE}/archives/csit_* - Test results for various VPP builds are here.
+#   e.g. csit_current and csit_parent for vpp per-patch perf job.
 
 mkdir -p "${WORKSPACE}/archives"
-cp -Rv "${WORKSPACE}/csit_current" "${WORKSPACE}/archives"
-cp -Rv "${WORKSPACE}/csit_parent" "${WORKSPACE}/archives"
+# Using asterisk as bisect job creates variable number of directories.
+cp -Rv "${WORKSPACE}/csit_"* "${WORKSPACE}/archives"
diff --git a/jjb/scripts/vpp/csit-bisect.sh b/jjb/scripts/vpp/csit-bisect.sh
new file mode 100644
index 000000000..0a264dbc8
--- /dev/null
+++ b/jjb/scripts/vpp/csit-bisect.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2023 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -exuo pipefail
+
+# Clone CSIT git repository and proceed with entry script located there.
+#
+# Variables read:
+# - WORKSPACE - Jenkins workspace to create csit subdirectory in.
+# - CSIT_REF - Override ref of CSIT git repository to checkout.
+# Directories updated:
+# - ${WORKSPACE}/csit - Created, holding a checked out CSIT repository.
+# - Multiple other side effects by entry script(s), see CSIT repository.
+
+cd "${WORKSPACE}"
+git clone https://gerrit.fd.io/r/csit --depth=1 --no-single-branch --no-checkout
+pushd "${WORKSPACE}/csit"
+if [[ -n "${CSIT_REF-}" ]]; then
+    git fetch --depth=1 https://gerrit.fd.io/r/csit "${CSIT_REF}"
+    git checkout FETCH_HEAD
+else
+    git checkout HEAD
+fi
+popd
+csit_entry_dir="${WORKSPACE}/csit/resources/libraries/bash/entry"
+source "${csit_entry_dir}/with_oper_for_vpp.sh" "bisect.sh"