project-config/jenkins/scripts/common.sh
John L. Villalovos e9b6fc195c Don't re-propose requirements changes that already exist.
Previously Gerrit would reject changes that were basically duplicates.
So when we submitted a duplicate requirements change it would not get
accepted. The new version of Gerrit now accepts these duplicates which
causes an excessive amount of patches to be posted.

Change the behavior so that know it will only propose a requirements
change when there is an actual change compared to previous proposed
patches.

Change-Id: I89a0477de4317a5cbe76d6ad3a069e49d22df0e2
2017-11-14 20:09:18 -08:00

94 lines
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# 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.
# Setup git so that git review works:
# * git review set up is done as part of the playbooks
# * Set up a branch in case the repo started with a detached head.
function setup_git {
# Initial state of repository is detached, create a branch to work
# from. Otherwise git review will complain.
git checkout -B proposals
}
# See if there is already open change. If so, get the change id for
# the existing change for use in the commit msg.
# Sets the variables CHANGE_ID and CHANGE_NUM if there is a previous change.
# Sets variable COMMIT_MSG to include change id and INITIAL_COMMIT_MSG.
function setup_commit_message {
local PROJECT=$1
local USERNAME=$2
local BRANCH=$3
local TOPIC=$4
local INITIAL_COMMIT_MSG=$5
# Clear any old values
CHANGE_ID=""
# CHANGE_NUM will be the change number (for example 519105)
CHANGE_NUM=""
# See if there is an open change, if so, get the change id for the
# existing change for use in the commit message.
local change_info=$(ssh -p 29418 $USERNAME@review.openstack.org \
gerrit query --current-patch-set status:open project:$PROJECT \
owner:$USERNAME branch:$BRANCH topic:$TOPIC)
CHANGE_NUM=$(echo "$change_info" | grep "^ number:" | awk '{print $2}')
if [ -n "$CHANGE_NUM" ]; then
CHANGE_ID=$(echo "$change_info" | grep "^change" | awk '{print $2}')
# read returns a non zero value when it reaches EOF. Because we use a
# heredoc here it will always reach EOF and return a nonzero value.
# Disable -e temporarily to get around the read.
# The reason we use read is to allow for multiline variable content
# and variable interpolation. Simply double quoting a string across
# multiple lines removes the newlines.
set +e
read -d '' COMMIT_MSG <<EOF
$INITIAL_COMMIT_MSG
Change-Id: $CHANGE_ID
EOF
set -e
else
COMMIT_MSG=$INITIAL_COMMIT_MSG
fi
}
# Check to see if $CHANGE_ID is already approved, if it is, don't bother
# proposing another.
function check_already_approved {
local CHANGE_ID=$1
# If the open change an already approved, let's not queue a new
# patch but let's merge the other patch first.
# This solves the problem that when the gate pipeline backup
# reaches roughly a day, no matter how quickly you approve the new
# update it will always get sniped out of the gate by another.
# It also helps, when you approve close to the time this job is
# run.
if [ -n "$CHANGE_ID" ]; then
# Use the JSON format since it is very compact and easy to grep
change_info=$(ssh -p 29418 proposal-bot@review.openstack.org gerrit query --current-patch-set --format=JSON $CHANGE_ID)
# Check for:
# 1) Workflow approval (+1)
# 2) no -1/-2 by Zuul
# 3) no -2 by reviewers
# 4) no Workflow -1 (WIP)
#
if echo $change_info|grep -q '{"type":"Workflow","description":"Workflow","value":"1"' \
&& ! echo $change_info|grep -q '{"type":"Verified","description":"Verified","value":"-[12]","grantedOn":[0-9]*,"by":{"name":"Zuul","username":"zuul"}}' \
&& ! echo $change_info|grep -q '{"type":"Code-Review","description":"Code-Review","value":"-2"' \
&& ! echo $change_info|grep -q '{"type":"Workflow","description":"Workflow","value":"-1"' ; then
echo "Job already approved, exiting"
exit 0
fi
fi
}