Add "--pinentry-mode loopback" to gpg

As per instructions in https://wiki.eclipse.org/Jenkins#How_can_artifacts_be_deployed_to_OSSRH_.2F_Maven_Central.3F

documentation/releasing.md

@@ -12,7 +12,7 @@ Items at the beginning of development
 - [ ] Check [CHANGELOG.md](https://github.com/eclipse-lsp4j/lsp4j/blob/main/CHANGELOG.md) is up to date. The changelog should have a version entry, release date, API Breakages and other information consistent with current entries in the changelog.
 - [ ] Check [README.md](https://github.com/eclipse-lsp4j/lsp4j/blob/main/README.md) is up to date. In particular that the planned release and which versions of DAP and LSP are support is listed.
 - [ ] Increment version of all feature.xml, pom.xml and any other place full version is used. (Easiest way is global find and replace, e.g. `s/0.23.0/0.24.0/g`, `s/0.22.0/0.23.0/g` and review changes.) Ensure that `-SNAPSHOT` is restored in the [gradle/versions.gradle](https://github.com/eclipse-lsp4j/lsp4j/blob/main/gradle/versions.gradle) and  [releng/pom.xml](https://github.com/eclipse-lsp4j/lsp4j/blob/main/releng/pom.xml)
-- [ ] Enable `sh './releng/deploy-build.sh'` in [releng/build.Jenkinsfile](https://github.com/eclipse-lsp4j/lsp4j/blob/main/releng/build.Jenkinsfile) 
+- [ ] Enable `cd releng && ./deploy-build.sh'` in [releng/build.Jenkinsfile](https://github.com/eclipse-lsp4j/lsp4j/blob/main/releng/build.Jenkinsfile) 
 - [ ] Ensure [the CI build](https://ci.eclipse.org/lsp4j/job/lsp4j-multi-build/job/main/) is stable - it is always better to release a "Green Dot" build
 
 Items in the days ahead of Release day:
@@ -30,7 +30,7 @@ Items on Release day:
 - [ ] Prepare the repo for release by:
     - [ ] removing `-SNAPSHOT` from [gradle/versions.gradle](https://github.com/eclipse-lsp4j/lsp4j/blob/main/gradle/versions.gradle)
     - [ ] removing `-SNAPSHOT` from [releng/pom.xml](https://github.com/eclipse-lsp4j/lsp4j/blob/main/releng/pom.xml) entries in `<dependencies>` section.
-    - [ ] disabling `sh './releng/deploy-build.sh'` in [releng/build.Jenkinsfile](https://github.com/eclipse-lsp4j/lsp4j/blob/main/releng/build.Jenkinsfile) 
+    - [ ] disabling `cd releng && ./deploy-build.sh'` in [releng/build.Jenkinsfile](https://github.com/eclipse-lsp4j/lsp4j/blob/main/releng/build.Jenkinsfile) 
     - see commit https://github.com/eclipse-lsp4j/lsp4j/commit/328ce8a4c89b0cd84fb62118f459b6cf79b09e90 for a past example
 - [ ] Push the above change
 - [ ] Run [the CI build](https://ci.eclipse.org/lsp4j/job/lsp4j-multi-build/job/main/)

releng/build.Jenkinsfile

@@ -73,7 +73,7 @@ pipeline {
             // XXX: Can release vs snapshot be detected automatically so that
             // the following line does not have to be commented/uncommented
             // on each change to/from SNAPSHOT?
-            sh './releng/deploy-build.sh'
+            sh 'cd releng && ./deploy-build.sh'
           }
         }
       }

releng/deploy-build.sh

@@ -31,12 +31,12 @@ $SSH mv ${DOWNLOAD_MOUNT}-new ${DOWNLOAD_MOUNT}
 case $BRANCH_NAME in
     main | release_*)
         # GPG Sign and Deploy to Maven Central snapshot
-        find build/maven-repository -name '*.pom' | while read i
+        find ../build/maven-repository -name '*.pom' | while read i
         do
             base="${i%.*}"
             # See https://wiki.eclipse.org/Jenkins#How_can_artifacts_be_deployed_to_OSSRH_.2F_Maven_Central.3F for more info
             # on the Eclipse Foundation specific settings.
-            mvn -X \
+            mvn -X -f gpgparameters.pom \
                 org.apache.maven.plugins:maven-gpg-plugin:3.2.7:sign-and-deploy-file \
                 -DpomFile=${base}.pom \
                 -Dfile=${base}.jar \

releng/gpgparameters.pom

@@ -0,0 +1,30 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.eclipse.lsp4j</groupId>
+    <artifactId>gpgparameters</artifactId>
+    <version>0.24.0-SNAPSHOT</version>
+    <packaging>pom</packaging>
+
+    <!--
+    This file is used to pass command line parameters to GPG because there is no user
+    property that can be used. See depoy-build.sh
+    -->
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-gpg-plugin</artifactId>
+                <version>3.2.7</version>
+                <configuration>
+                    <gpgArguments>
+                        <arg>--pinentry-mode</arg>
+                        <arg>loopback</arg>
+                    </gpgArguments>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>