From e277ed29bd1bdac6b2ee9540ecc88f106ce13d0c Mon Sep 17 00:00:00 2001
From: Lars Vogel <Lars.Vogel@vogella.com>
Date: Wed, 20 Dec 2023 11:13:26 +0100
Subject: [PATCH] Option to ignore p2 mirrors via the Maven settings and the
 new eclipse.p2.mirrors option

Commit 7e6d595 has removed the option for tycho.disableP2Mirrors
to use the settings.xml to disable the usage of p2 mirrors.

See https://github.com/eclipse-tycho/tycho/wiki/Frequently-asked-questions#how-do-i-disable-p2-mirrors

Restores this option and also add support for the new eclipse.p2.mirrors
property
---
 p2-maven-plugin/pom.xml                       |  5 +++
 ...ArtifactRepositoryManagerAgentFactory.java | 41 ++++++++++++++++---
 2 files changed, 41 insertions(+), 5 deletions(-)

diff --git a/p2-maven-plugin/pom.xml b/p2-maven-plugin/pom.xml
index 91f5ef57d4..48f9dc5990 100644
--- a/p2-maven-plugin/pom.xml
+++ b/p2-maven-plugin/pom.xml
@@ -207,6 +207,11 @@
 			<groupId>commons-net</groupId>
 			<artifactId>commons-net</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.eclipse.tycho</groupId>
+			<artifactId>tycho-core</artifactId>
+			<version>5.0.0-SNAPSHOT</version>
+		</dependency>
 	</dependencies>
 	<build>
 		<plugins>
diff --git a/p2-maven-plugin/src/main/java/org/eclipse/tycho/p2maven/transport/RemoteArtifactRepositoryManagerAgentFactory.java b/p2-maven-plugin/src/main/java/org/eclipse/tycho/p2maven/transport/RemoteArtifactRepositoryManagerAgentFactory.java
index 0f638c3ea4..dfd22ced7a 100644
--- a/p2-maven-plugin/src/main/java/org/eclipse/tycho/p2maven/transport/RemoteArtifactRepositoryManagerAgentFactory.java
+++ b/p2-maven-plugin/src/main/java/org/eclipse/tycho/p2maven/transport/RemoteArtifactRepositoryManagerAgentFactory.java
@@ -12,6 +12,7 @@
  *******************************************************************************/
 package org.eclipse.tycho.p2maven.transport;
 
+import org.apache.maven.plugin.LegacySupport;
 import org.codehaus.plexus.component.annotations.Component;
 import org.codehaus.plexus.component.annotations.Requirement;
 import org.codehaus.plexus.logging.Logger;
@@ -34,6 +35,9 @@ public class RemoteArtifactRepositoryManagerAgentFactory implements IAgentServic
 	@Requirement
 	MavenAuthenticator authenticator;
 
+	@Requirement
+	protected LegacySupport mavenContext;
+
 	@Override
 	public Object createService(IProvisioningAgent agent) {
 		IArtifactRepositoryManager plainRepoManager = (IArtifactRepositoryManager) new ArtifactRepositoryComponent()
@@ -45,14 +49,41 @@ public Object createService(IProvisioningAgent agent) {
 	}
 
 	private boolean getDisableP2MirrorsConfiguration() {
-		String key = "tycho.disableP2Mirrors";
-		String value = System.getProperty(key);
-		if (value != null) {
-			logger.info("Using " + key
+		String deprecatedKey = "tycho.disableP2Mirrors";
+		String deprecatedValue = System.getProperty(deprecatedKey);
+
+		if (deprecatedValue == null) {
+			deprecatedValue = mavenContext.getSession().getSystemProperties().getProperty(deprecatedKey);
+		}
+
+		if (deprecatedValue == null) {
+			deprecatedValue = mavenContext.getSession().getUserProperties().getProperty(deprecatedKey);
+		}
+
+		if (deprecatedValue != null) {
+			logger.info("Using " + deprecatedKey
 					+ " to disable P2 mirrors is deprecated, use the property eclipse.p2.mirrors instead, see https://tycho.eclipseprojects.io/doc/"
 					+ TychoVersion.getTychoVersion() + "/SystemProperties.html for details.");
-			return Boolean.parseBoolean(value);
+			return Boolean.parseBoolean(deprecatedValue);
+		}
+
+		String key = "eclipse.p2.mirrors ";
+		String value = System.getProperty(key);
+
+
+		if (value == null) {
+			value = mavenContext.getSession().getSystemProperties().getProperty(key);
+		}
+
+		if (value == null) {
+			value = mavenContext.getSession().getUserProperties().getProperty(key);
+		}
+
+		if (value != null) {
+			// eclipse.p2.mirrors false -> disable mirrors
+			return !Boolean.parseBoolean(value);
 		}
 		return false;
+
 	}
 }