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https://issues.apache.org/jira/browse/MNG-7038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17714263#comment-17714263
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ASF GitHub Bot commented on MNG-7038:
-------------------------------------
elharo commented on code in PR #1061:
URL: https://github.com/apache/maven/pull/1061#discussion_r1171728775
##########
maven-model-builder/src/main/java/org/apache/maven/model/root/DefaultRootLocator.java:
##########
@@ -0,0 +1,57 @@
+/*
+ * 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.
+ */
+package org.apache.maven.model.root;
+
+import javax.inject.Named;
+
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import org.codehaus.plexus.util.xml.pull.MXParser;
+
+@Named
+public class DefaultRootLocator implements RootLocator {
+
+ public boolean isRootDirectory(Path dir) {
+ if (Files.isDirectory(dir.resolve(".mvn"))) {
+ return true;
+ }
+ // we're too early to use the modelProcessor ...
+ Path pom = dir.resolve("pom.xml");
+ try (InputStream is = Files.newInputStream(pom)) {
+ MXParser parser = new MXParser();
+ parser.setInput(is, null);
+ if (parser.nextTag() == MXParser.START_TAG &&
parser.getName().equals("project")) {
+ for (int i = 0; i < parser.getAttributeCount(); i++) {
+ if ("root".equals(parser.getAttributeName(i))) {
+ return
Boolean.parseBoolean(parser.getAttributeValue(i));
+ }
+ }
+ }
+ } catch (Exception e) {
Review Comment:
It should be possible to catch more specific exceptions here.
> Introduce public property to point to a root directory of (multi-module)
> project
> --------------------------------------------------------------------------------
>
> Key: MNG-7038
> URL: https://issues.apache.org/jira/browse/MNG-7038
> Project: Maven
> Issue Type: Improvement
> Reporter: Envious Guest
> Assignee: Guillaume Nodet
> Priority: Major
> Fix For: 4.0.0-alpha-6
>
>
> This is a request to expose a property *maven.multiModuleProjectDirectory*
> which is currently internal (or introduce a brand new one with analogous
> functionality).
> * For a single-module project, its value should be same as *project.basedir*
> * For multi-module project, its value should point to a project.basedir of a
> root module
> Example:
> multi-module // located at /home/me/sources
> +- module-a
> +- module B
> Sample multi-module/pom.xml:
> {{<project>}}
> {{ <parent>}}
> {{ <groupId>com.acme</groupId>}}
> {{ <artifactId>corp-parent</artifactId>}}
> {{ <version>1.0.0-RELEASE</version>}}
> {{ </parent>}}
> {{ <groupId>com.acme</groupId>}}
> {{ <artifactId>multi-module</artifactId>}}
> {{ <version>0.5.2-SNAPSHOT</version>}}
> {{ <modules>}}
> {{ <module>module-a</module>}}
> {{ <module>module-b</module>}}
> {{ </modules>}}
> {{</project>}}
> The property requested should return /home/me/sources/multi-module,
> regardless of whether it's referenced in any of the child modules (module-a,
> module-b) or in multi-module.
> Note that multi-module itself has parent (e.g. installed in a local
> repository), so the new property should be smart enough to detect it and
> still point to /home/me/sources/multi-module instead of the local repository
> where the corp-parent is installed.
> The use-case for such a property could be to have a directory for combined
> report of static analysis tools. Typical example - jacoco combined coverage
> reports.
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