HBASE-28642 Hide old PR comments when posting new

dev-support/Jenkinsfile_GitHub

@@ -92,6 +92,7 @@ pipeline {
                         DOCKERFILE = "${WORKDIR}/${DOCKERFILE_REL}"
                         YETUS_DRIVER = "${WORKDIR}/${YETUS_DRIVER_REL}"
                         ASF_NIGHTLIES_GENERAL_CHECK_BASE="${ASF_NIGHTLIES_BASE}/${WORKDIR_REL}/${PATCH_REL}"
+                        HIDE_OLD_COMMENTS = "${SOURCEDIR}/dev-support/gh_hide_old_comments.sh"
                     }
                     when {
                         // this will return true if the pipeline is building a change request, such as a GitHub pull request.
@@ -174,6 +175,19 @@ pipeline {
                               reportFiles: 'report.html',
                               reportName: 'PR General Check Report'
                             ]
+                            withCredentials([
+                                usernamePassword(
+                                    credentialsId: 'apache-hbase-at-github.zerozr99.workers.dev',
+                                    passwordVariable: 'GITHUB_TOKEN',
+                                    usernameVariable: 'GITHUB_USER'
+                                )
+                            ]) {
+                                script {
+                                    sh label: 'Hide Stale PR Comments', script: '''#!/bin/bash -e
+                                    "${HIDE_OLD_COMMENTS}" "${CHANGE_ID}" || :
+                                    '''
+                                }
+                            }
                         }
                         // Jenkins pipeline jobs fill slaves on PRs without this :(
                         cleanup() {

dev-support/gh_hide_old_comments.sh

@@ -0,0 +1,149 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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 -eEuo pipefail
+trap 'exit 1' ERR
+
+declare DEBUG
+if [ "${DEBUG}" = 'true' ] ; then
+    set -x
+fi
+
+declare GITHUB_TOKEN
+declare -a GITHUB_AUTH
+GITHUB_AUTH=('--header' "Authorization: token ${GITHUB_TOKEN}")
+declare GITHUB_API_URL="https://api.github.com"
+
+# the user_id of the buildbot that leaves the comments we want to hide.
+declare BUILD_BOT_USER_ID="${BUILD_BOT_USER_ID:-49303554}"
+declare REPO="${REPO:-apache/hbase}"
+declare JOB_NAME="${JOB_NAME:-HBase-PreCommit-GitHub-PR}"
+JOB_NAME="$(echo "${JOB_NAME}" | cut -d/ -f1)"
+declare CURL="${CURL:-curl}"
+
+function fetch_comments {
+    local pr="$1"
+    local comments_file
+    local -a curl_args
+    curl_args=(
+        --fail
+        "${GITHUB_AUTH[@]}"
+        --header 'Accept: application/vnd.github+json'
+        --header 'X-GitHub-Api-Version: 2022-11-28'
+        --request GET
+        --url "${GITHUB_API_URL}/repos/${REPO}/issues/${pr}/comments?per_page=500"
+    )
+    if [ "${DEBUG}" = true ] ; then
+        curl_args+=(--verbose)
+    else
+        curl_args+=(--silent)
+    fi
+
+    comments_file="$(mktemp "comments_${pr}" 2>/dev/null || mktemp -t "comments_${pr}.XXXXXXXXXX")" || \
+        { >&2 echo 'cannot create temp file';  exit 1 ;}
+    "${CURL}" "${curl_args[@]}" > "${comments_file}"
+    if [ "${DEBUG}" = 'true' ] ; then
+        >&2 cat "${comments_file}"
+    fi
+    echo "${comments_file}"
+}
+
+function hide_old_comment {
+    local pr="$1"
+    local comment_id="$2"
+    local -a curl_args
+    local query
+    read -r -d '' query << EOF || :
+mutation {
+  minimizeComment(input: { subjectId: \"$comment_id\", classifier: OUTDATED }) {
+    minimizedComment {
+      isMinimized,
+      minimizedReason
+    }
+  }
+}
+EOF
+    # remove newlines and whitespace rather than escaping them
+    query="${query//[$'\r\n\t ']/}"
+
+    curl_args=(
+        --fail
+        "${GITHUB_AUTH[@]}"
+        --header 'Accept: application/vnd.github+json'
+        --header 'Content-Type: application/json'
+        --header 'X-GitHub-Api-Version: 2022-11-28'
+        --request POST
+        --url "${GITHUB_API_URL}/graphql"
+    )
+    if [ "${DEBUG}" = true ] ; then
+        curl_args+=(--verbose)
+    else
+        curl_args+=(--silent)
+    fi
+
+    "${CURL}" "${curl_args[@]}" --data "{ \"query\": \"${query}\" }"
+}
+
+function identify_most_recent_build_number {
+    local pr="$1"
+    local comments_file="$2"
+    local jq_filter
+    read -r -d '' jq_filter << EOF || :
+.[] \
+| select(.user.id == ${BUILD_BOT_USER_ID}) \
+| .body \
+| capture("${JOB_NAME}/job/PR-${pr}/(?<buildnum>[0-9]+)/") \
+| .buildnum
+EOF
+
+    jq -r "${jq_filter}" "${comments_file}" \
+        | sort -nu \
+        | tail -n1
+}
+
+function identify_old_comment_ids {
+    local pr="$1"
+    local comments_file="$2"
+    local most_recent_build_number="$3"
+    local jq_filter
+    read -r -d '' jq_filter << EOF || :
+.[] \
+| select(.user.id == ${BUILD_BOT_USER_ID}) \
+| { node_id, buildnum: (.body | capture("${JOB_NAME}/job/PR-${pr}/(?<buildnum>[0-9]+)/") | .buildnum | tonumber) } \
+| select(.buildnum < (${most_recent_build_number} | tonumber)) \
+| .node_id
+EOF
+
+    jq -r "${jq_filter}" "${comments_file}"
+}
+
+function main {
+    local pr="$1"
+    local comments_file
+    local most_recent_build_number
+
+    comments_file="$(fetch_comments "$pr")"
+    most_recent_build_number="$(identify_most_recent_build_number "${pr}" "${comments_file}")"
+    for comment_id in $(identify_old_comment_ids "${pr}" "${comments_file}" "${most_recent_build_number}") ; do
+        hide_old_comment "${pr}" "${comment_id}"
+        sleep 1
+    done
+}
+
+main "$@"