Author: gboue
Date: Sat Nov  5 15:49:26 2016
New Revision: 1768231

URL: http://svn.apache.org/viewvc?rev=1768231&view=rev
Log:
[MPH-119] The "artifact" parameter is not taken into account with Maven 3

Starting with Maven 3, PluginParameterExpressionEvaluator ignores the project 
given as parameter in its 6-args constructor, and fetches instead the current 
project from the Maven session. As such, the plugin needs to set the fake 
project created through the "artifact" parameter as the session current 
project, and put back the real one after construction of the evaluator.

Added:
    
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/
    
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/pom.xml
   (with props)
    
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/test.properties
   (with props)
    
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/verify.groovy
   (with props)
Modified:
    
maven/plugins/trunk/maven-help-plugin/src/main/java/org/apache/maven/plugins/help/EvaluateMojo.java

Added: 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/pom.xml
URL: 
http://svn.apache.org/viewvc/maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/pom.xml?rev=1768231&view=auto
==============================================================================
--- 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/pom.xml
 (added)
+++ 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/pom.xml
 Sat Nov  5 15:49:26 2016
@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you 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.
+-->
+
+<project>
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.apache.maven.its.help</groupId>
+  <artifactId>test</artifactId>
+  <version>1.0</version>
+  <name>Maven Foo Bar</name>
+  <description>https://issues.apache.org/jira/browse/MPH-114</description>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-help-plugin</artifactId>
+        <version>@project.version@</version>
+        <executions>
+          <execution>
+            <id>its</id>
+            <goals>
+              <goal>evaluate</goal>
+            </goals>
+            <phase>package</phase>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-enforcer-plugin</artifactId>
+        <version>1.4.1</version>
+        <executions>
+          <execution>
+            <id>enforce-currentproject</id>
+            <goals>
+              <goal>enforce</goal>
+            </goals>
+            <phase>package</phase>
+            <configuration>
+              <rules>
+                <evaluateBeanshell>
+                  <!--
+                    Makes sure that the session contains the right 
currentProject (i.e. the Maven project being built),
+                    and not the fake Maven project created with the "artifact" 
parameter.
+                  -->
+                  <condition>${session.currentProject.artifactId} == 
test</condition>
+                </evaluateBeanshell>
+              </rules>
+              <fail>true</fail>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>

Propchange: 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/pom.xml
------------------------------------------------------------------------------
    svn:eol-style = native

Propchange: 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/pom.xml
------------------------------------------------------------------------------
    svn:keywords = Author Date Id Revision

Added: 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/test.properties
URL: 
http://svn.apache.org/viewvc/maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/test.properties?rev=1768231&view=auto
==============================================================================
--- 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/test.properties
 (added)
+++ 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/test.properties
 Sat Nov  5 15:49:26 2016
@@ -0,0 +1,20 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+expression = project.name
+output = result.txt
+artifact = org.apache.maven.plugins:maven-help-plugin

Propchange: 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/test.properties
------------------------------------------------------------------------------
    svn:eol-style = native

Propchange: 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/test.properties
------------------------------------------------------------------------------
    svn:keywords = Author Date Id Revision

Added: 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/verify.groovy
URL: 
http://svn.apache.org/viewvc/maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/verify.groovy?rev=1768231&view=auto
==============================================================================
--- 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/verify.groovy
 (added)
+++ 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/verify.groovy
 Sat Nov  5 15:49:26 2016
@@ -0,0 +1,23 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+def result = new File(basedir, 'result.txt').text; 
+assert result == 'Apache Maven Help Plugin'
+
+return true;

Propchange: 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/verify.groovy
------------------------------------------------------------------------------
    svn:eol-style = native

Propchange: 
maven/plugins/trunk/maven-help-plugin/src/it/evaluate-artifact-with-expression-with-output/verify.groovy
------------------------------------------------------------------------------
    svn:keywords = Author Date Id Revision

Modified: 
maven/plugins/trunk/maven-help-plugin/src/main/java/org/apache/maven/plugins/help/EvaluateMojo.java
URL: 
http://svn.apache.org/viewvc/maven/plugins/trunk/maven-help-plugin/src/main/java/org/apache/maven/plugins/help/EvaluateMojo.java?rev=1768231&r1=1768230&r2=1768231&view=diff
==============================================================================
--- 
maven/plugins/trunk/maven-help-plugin/src/main/java/org/apache/maven/plugins/help/EvaluateMojo.java
 (original)
+++ 
maven/plugins/trunk/maven-help-plugin/src/main/java/org/apache/maven/plugins/help/EvaluateMojo.java
 Sat Nov  5 15:49:26 2016
@@ -154,7 +154,7 @@ public class EvaluateMojo
     protected ArtifactRepository localRepository;
 
     /**
-     * The current Maven project or the super pom.
+     * Maven project built from the given {@link #artifact}. Otherwise, the 
current Maven project or the super pom.
      */
     @Parameter( defaultValue = "${project}", readonly = true, required = true )
     protected MavenProject project;
@@ -359,10 +359,18 @@ public class EvaluateMojo
             MojoDescriptor mojoDescriptor =
                 HelpUtil.getMojoDescriptor( "help:evaluate", session, project, 
"help:evaluate", true, false );
             MojoExecution mojoExecution = new MojoExecution( mojoDescriptor );
-            evaluator =
-                new PluginParameterExpressionEvaluator( session, 
mojoExecution, pathTranslator,
-                                                        
loggerRetriever.getLogger(), project,
-                                                        
session.getExecutionProperties() );
+
+            MavenProject currentProject = session.getCurrentProject();
+            // Maven3: PluginParameterExpressionEvaluator ignores the project 
parameter and gets the current project
+            // from the session: synchronize in case another thread wants to 
fetch the real current project in between
+            synchronized ( session )
+            {
+                session.setCurrentProject( project );
+                evaluator = new PluginParameterExpressionEvaluator( session, 
mojoExecution, pathTranslator,
+                                                                    
loggerRetriever.getLogger(), project,
+                                                                    
session.getExecutionProperties() );
+                session.setCurrentProject( currentProject );
+            }
         }
 
         return evaluator;


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