tcwg-report-stale-rr-jobs.sh: New script

... to list round-robin CI jobs that hasn't had a good run in several
days (10 days, by default).  We'll use this script to monitor round-robin
jobs that are failing due to infrastructure reasons.

Change-Id: I0a76f0737903c023737c5ba9b7ff95c66b0974ac

1 files changed, 33 insertions, 0 deletions

diff --git a/tcwg-report-stale-rr-jobs.sh b/tcwg-report-stale-rr-jobs.sh
new file mode 100755
index 00000000..fa57fb5d
--- /dev/null
+++ b/tcwg-report-stale-rr-jobs.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+set -euf -o pipefail
+
+scripts=$(dirname "$0")
+# shellcheck source=jenkins-helpers.sh
+. "$scripts/jenkins-helpers.sh"
+
+convert_args_to_variables "$@"
+
+days="${days-10}"
+refs_url="${refs_url-https://git.linaro.org/toolchain/ci/base-artifacts}"
+refs_prefix="${refs_prefix-refs/heads/linaro-local/ci/}"
+verbose="${verbose-false}"
+
+if $verbose; then
+    set -x
+fi
+
+# Initialize base-artifacts repo (by cloning its "empty" branch).
+refs_repo=$(basename "$refs_url" .git)
+clone_or_update_repo_no_checkout "$refs_repo" "$refs_url" none empty origin >/dev/null 2>&1
+git -C "$refs_repo" reset --hard >/dev/null 2>&1
+
+# Walk through all commits of all tcwg_bmk* branches and mark results
+# referenced in those results with "used_by" file.
+while IFS= read -r ref; do
+    git -C "$refs_repo" fetch -q origin "$ref"
+    commit_stamp=$(git -C "$refs_repo" show --no-patch --pretty=%ct FETCH_HEAD)
+    if [ $(($(date +%s) - $commit_stamp)) -gt $(($days * 24 * 3600)) ]; then
+	echo "${ref#$refs_prefix}"
+    fi
+done < <(git ls-remote "$refs_url" "${refs_prefix}*" | awk '{ print $2 }')