GH-1246: Configuring Sonatype/Maven Central Deployment (#1334)

Configuring Circle CI to deploy to Maven Central.

* Locking Snapshot to build only on master
* All builds must pass before deploying a snapshot on master

.circleci/config.yml

@@ -12,11 +12,6 @@
 # the License.
 #
 
-# Java Maven CircleCI 2.0 configuration file
-#
-# Check https://circleci.com/docs/2.0/language-java/ for more details
-#
-
 # our job defaults
 defaults: &defaults
   working_directory: ~/feign
@@ -37,6 +32,21 @@ defaults: &defaults
     - run: mvn -o test
 
 version: 2.1
+
+commands:
+  configure-gpg:
+    steps:
+      - run:
+          name: 'Configure GPG keys'
+          command: |
+            echo -e "$GPG_KEY" | gpg --batch --no-tty --import --yes
+  nexus-deploy:
+    steps:
+      - run:
+          name: 'Deploy to Sonatype'
+          command: |
+            mvn -nsu -s .circleci/settings.xml -P release -pl -:feign-benchmark -DskipTests=true deploy
+
 jobs:
   jdk8:
     docker:
@@ -53,6 +63,18 @@ jobs:
       - image: circleci/openjdk:14-buster
     <<: *defaults
 
+  deploy-snapshot:
+    docker:
+      - image: circleci/openjdk:8
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - feign-dependencies-{{ checksum "pom.xml" }}
+            - feign-dependencies-
+      - configure-gpg
+      - nexus-deploy
+
 workflows:
   version: 2
   build:
@@ -60,3 +82,12 @@ workflows:
       - jdk8
       - jdk11
       - jdk14
+      - deploy-snapshot:
+          requires:
+            - jdk8
+            - jdk11
+            - jdk14
+          context: Sonatype
+          filters:
+            branches:
+              only: master

.circleci/settings.xml

@@ -0,0 +1,39 @@
+<!--
+
+    Copyright 2012-2019 The Feign Authors
+
+    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.
+
+-->
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
+                          http://maven.apache.org/xsd/settings-1.0.0.xsd">
+  <servers>
+    <server>
+      <id>ossrh</id>
+      <username>${env.SONATYPE_USER}</username>
+      <password>${env.SONATYPE_PASSWORD}</password>
+    </server>
+  </servers>
+  <profiles>
+    <profile>
+      <id>ossrh</id>
+      <activation>
+        <activeByDefault>true</activeByDefault>
+      </activation>
+      <properties>
+        <gpg.passphrase>${env.GPG_PASSPHRASE}</gpg.passphrase>
+      </properties>
+    </profile>
+  </profiles>
+</settings>
+

pom.xml

@@ -795,6 +795,12 @@
                 <goals>
                   <goal>sign</goal>
                 </goals>
+                <configuration>
+                  <gpgArguments>
+                    <arg>--pinentry-mode</arg>
+                    <arg>loopback</arg>
+                  </gpgArguments>
+                </configuration>
                 <phase>verify</phase>
               </execution>
             </executions>