Decouple BouncyCastle from JGit Core

Motivation: BouncyCastle serves as 'default' implementation of
the GPG Signer. If a client application does not use it there is no need
to pull in this dependency, especially since BouncyCastle is a large
library.

Move the classes depending on BouncyCastle to an OSGi fragment extending
the org.eclipse.jgit bundle. They are moved to a distinct internal
package in order to avoid split packages. This doesn't break public API
since these classes were already in an internal package before this
change.

Add a new feature org.eclipse.jgit.gpg.bc to enable installation. With
that users can now decide if they want to install it.

Attempts to sign a commit if org.eclipse.jgit.gpg.bc isn't available
will result in ServiceUnavailableException being thrown.

Bug: 559106
Change-Id: I42fd6c00002e17aa9a7be96ae434b538ea86ccf8
Also-by: Michael Dardis <git@md-5.net>
Signed-off-by: Michael Dardis <git@md-5.net>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: David Ostrovsky <david@ostrovsky.org>

1 files changed, 44 insertions, 0 deletions

diff --git a/org.eclipse.jgit.packaging/org.eclipse.jgit.gpg.bc.feature/pom.xml b/org.eclipse.jgit.packaging/org.eclipse.jgit.gpg.bc.feature/pom.xml
new file mode 100644
index 0000000000..c9ada739e1
--- /dev/null
+++ b/org.eclipse.jgit.packaging/org.eclipse.jgit.gpg.bc.feature/pom.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Copyright (C) 2020, Matthias Sohn <matthias.sohn@sap.com> and others
+
+  This program and the accompanying materials are made available under the
+  terms of the Eclipse Distribution License v. 1.0 which is available at
+  http://www.eclipse.org/org/documents/edl-v10.php.
+
+  SPDX-License-Identifier: BSD-3-Clause
+-->
+
+<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>
+
+  <parent>
+    <groupId>org.eclipse.jgit</groupId>
+    <artifactId>jgit.tycho.parent</artifactId>
+    <version>5.8.0-SNAPSHOT</version>
+  </parent>
+
+  <groupId>org.eclipse.jgit.feature</groupId>
+  <artifactId>org.eclipse.jgit.gpg.bc</artifactId>
+  <packaging>eclipse-feature</packaging>
+
+  <name>JGit - GPG support using bouncycastle</name>
+  <dependencies>
+
+    <dependency>
+      <groupId>org.eclipse.jgit</groupId>
+      <artifactId>org.eclipse.jgit</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+
+    <dependency>
+      <groupId>org.eclipse.jgit</groupId>
+      <artifactId>org.eclipse.jgit.gpg.bc</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+
+  </dependencies>
+
+</project>