scm plugin cannot checkout nested modules
-----------------------------------------
Key: MNG-2079
URL: http://jira.codehaus.org/browse/MNG-2079
Project: Maven 2
Type: Improvement
Components: Reactor and workspace, Bootstrap & Build
Versions: 2.0.2
Environment: maven 2 on linux
Reporter: Dan Allen
Maven2 doesn't seem to be smart enough to recognize that it is being told to
checkout a project that has sub-modules and that it needs to get the pom.xml
files for those modules from the scm url located in the top level pom.
Commands speak louder than words, so I will cite an example. Say you need to
checkout the continuum code, but you would like to do it via maven scm (which,
by the way, is required to get continuum set up using your project, which is
the purpose of this issue)
wget http://svn.apache.org/repos/asf/maven/continuum/trunk/pom.xml
mvn scm:checkout
The result:
Reason: Could not find the model file
'/home/dallen/tmp/checkout/continuum/continuum-api/pom.xml'.
[INFO]
----------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.reactor.MavenExecutionException: Could not find the model file
'/home/dallen/tmp/checkout/continuum/continuum-api/pom.xml'.
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:359)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:276)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:113)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.project.ProjectBuildingException: Could not find
the model file '/home/dallen/tmp/checkout/continuum/continuum-api/pom.xml'.
at
org.apache.maven.project.DefaultMavenProjectBuilder.readModel(DefaultMavenProjectBuilder.java:1061)
at
org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFile(DefaultMavenProjectBuilder.java:291)
at
org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:276)
at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:509)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:441)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:485)
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:345)
... 11 more
Caused by: java.io.FileNotFoundException:
/home/dallen/tmp/checkout/continuum/continuum-api/pom.xml (No such file or
directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:106)
at java.io.FileReader.<init>(FileReader.java:55)
at
org.apache.maven.project.DefaultMavenProjectBuilder.readModel(DefaultMavenProjectBuilder.java:1056)
And I promptly say, "of course you can't, because you haven't checked it out
yet!"
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