From cfc34325599e8540be6de457b5f07ac9e08196b4 Mon Sep 17 00:00:00 2001
From: Anil Belur <abelur@linuxfoundation.org>
Date: Mon, 9 Apr 2018 19:22:15 +1000
Subject: [PATCH] Add generic push changes to gerrit builder

This is a generic version of the script to push a change through
a job to Gerrit in an automated fashion. Projects can reuse this
macros when they have jobs which requires to  push a change to
gerrit.

RELENG-769
Change-Id: I4d269a4dad6ddbd509a134306b61b2214194b479
Signed-off-by: Anil Belur <abelur@linuxfoundation.org>
---
 jjb/lf-macros.yaml         | 13 ++++++++
 shell/gerrit-push-patch.sh | 75 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 88 insertions(+)
 create mode 100644 shell/gerrit-push-patch.sh

diff --git a/jjb/lf-macros.yaml b/jjb/lf-macros.yaml
index fb24a621..c7b7fb2f 100644
--- a/jjb/lf-macros.yaml
+++ b/jjb/lf-macros.yaml
@@ -86,6 +86,19 @@
       - shell: !include-raw:
           - ../shell/packer-clear-credentials.sh
 
+- builder:
+    name: lf-infra-push-gerrit-patch
+    builders:
+      - inject:
+          properties-content: |
+              PROJECT='{project}'
+              GERRIT_COMMIT_MESSAGE='{gerrit-commit-message}'
+              GERRIT_HOST='{gerrit-host}'
+              GERRIT_TOPIC='{gerrit-topic}'
+              GERRIT_USER='{gerrit-user}'
+              REVIEWERS_EMAIL='{reviewers-email}'
+      - shell: !include-raw-escape: ../shell/gerrit-push-patch.sh
+
 - builder:
     name: lf-infra-sysstat
     builders:
diff --git a/shell/gerrit-push-patch.sh b/shell/gerrit-push-patch.sh
new file mode 100644
index 00000000..43762775
--- /dev/null
+++ b/shell/gerrit-push-patch.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+# SPDX-License-Identifier: EPL-1.0
+##############################################################################
+# Copyright (c) 2018 The Linux Foundation and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Eclipse Public License v1.0
+# which accompanies this distribution, and is available at
+# http://www.eclipse.org/legal/epl-v10.html
+##############################################################################
+# Push a change to Gerrit if files modified in repository.
+#
+# The script requires to install the minimum version 1.25 of git-review using
+# virtualenv and pip install which supports `--reviewers` option.
+#
+# The script allows a job to push a patch to Gerrit in an automated fashion.
+# This is meant for tasks that creates the same patch regularly and needs the
+# ability to detect if an unreviewed patch already exists. In which case it
+# will update the existing patch.
+#
+# Note: This patch assumes the $WORKSPACE contains the project repo with
+#       the files changed already "git add" and waiting for a "git commit" call.
+#
+# This script requires the following JJB variables to be passed in:
+#
+#   $PROJECT              : Gerrit project-name
+#   $GERRIT_COMMIT_MESSAGE: Commit message to assign to commit
+#   $GERRIT_HOST          : Gerrit hostname
+#   $GERRIT_TOPIC         : Gerrit topic, please make a unique topic
+#   $GERRIT_USER          : Gerrit user
+#   $REVIEWERS_EMAIL      : Reviewers email
+
+# TODO: remove the workaround when v1.26 is available on all images
+# Workaround for git-review bug in v1.24
+# https://storyboard.openstack.org/#!/story/2001081
+set +u  # Allow unbound variables for virtualenv
+virtualenv --quiet "/tmp/v/git-review"
+# shellcheck source=/tmp/v/git-review/bin/activate disable=SC1091
+source "/tmp/v/git-review/bin/activate"
+pip install --quiet --upgrade "pip==9.0.3" setuptools
+pip install --quiet --upgrade git-review
+set -u
+# End git-review workaround
+
+# Remove any leading or trailing quotes surrounding the strings
+# which can cause parse errors when passed as CLI options to commands
+PROJECT="$(echo $PROJECT | sed "s/^\([\"']\)\(.*\)\1\$/\2/g")"
+GERRIT_COMMIT_MESSAGE="$(echo $GERRIT_COMMIT_MESSAGE | sed "s/^\([\"']\)\(.*\)\1\$/\2/g")"
+GERRIT_HOST="$(echo $GERRIT_HOST | sed "s/^\([\"']\)\(.*\)\1\$/\2/g")"
+GERRIT_TOPIC="$(echo $GERRIT_TOPIC | sed "s/^\([\"']\)\(.*\)\1\$/\2/g")"
+GERRIT_USER="$(echo $GERRIT_USER | sed "s/^\([\"']\)\(.*\)\1\$/\2/g")"
+REVIEWERS_EMAIL="$(echo $REVIEWERS_EMAIL | sed "s/^\([\"']\)\(.*\)\1\$/\2/g")"
+
+CHANGE_ID=$(ssh -p 29418 "$GERRIT_USER@$GERRIT_HOST" gerrit query \
+               limit:1 owner:self is:open project:"$PROJECT" \
+               message: "$GERRIT_COMMIT_MESSAGE" \
+               topic: "$GERRIT_TOPIC" | \
+               grep 'Change-Id:' | \
+               awk '{ print $2 }')
+
+if [ -z "$CHANGE_ID" ]; then
+   git commit -sm "$GERRIT_COMMIT_MESSAGE"
+else
+   git commit -sm "$GERRIT_COMMIT_MESSAGE" -m "Change-Id: $CHANGE_ID"
+fi
+
+git status
+git remote add gerrit "ssh://$GERRIT_USER@$GERRIT_HOST:29418/$PROJECT.git"
+
+# if the reviewers email is empty then use a default
+REVIEWERS_EMAIL=${REVIEWERS_EMAIL:-"$GERRIT_USER@$GERRIT_HOST"}
+
+# Don't fail the build if this command fails because it's possible that there
+# is no changes since last update.
+git review --yes -t "$GERRIT_TOPIC" --reviewers "$REVIEWERS_EMAIL" || true
-- 
2.16.6