Maven mirror consulted after, rather than instead of, archetypeRepository URL
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                 Key: ARCHETYPE-366
                 URL: http://jira.codehaus.org/browse/ARCHETYPE-366
             Project: Maven Archetype
          Issue Type: Bug
          Components: Generator
    Affects Versions: 2.0
         Environment: Ubuntu 10.04, JDK 6.
            Reporter: Jesse Glick
            Priority: Minor


I have a local Nexus instance running, with a mirror of Central, and in 
{{settings.xml}}:

{noformat}
<mirror>
    <id>central</id>
    <mirrorOf>central</mirrorOf>
    <url>.../content/repositories/central/</url>
</mirror>
{noformat}

This works fine for normal Maven operations. However, {{archetype:generate}} 
tries to download from the public repo _first_. So when I am online, after 
typing this:

{noformat}
rm -rf ~/.m2/repository/org/codehaus/mojo/archetypes test
mvn -DarchetypeVersion=1.2 -Darchetype.interactive=false -DgroupId=test 
-DarchetypeArtifactId=osgi-archetype 
-DarchetypeRepository=http://repo1.maven.org/maven2/ -Dversion=1.0-SNAPSHOT 
-DarchetypeGroupId=org.codehaus.mojo.archetypes -Dbasedir=/tmp -Dpackage=test 
-DartifactId=test --batch-mode archetype:generate
{noformat}

I see:

{noformat}
[INFO] Archetype defined by properties
Downloading: 
http://repo1.maven.org/maven2/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.jar
Downloaded: 
http://repo1.maven.org/maven2/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.jar
 (4 KB at 8.7 KB/sec)
Downloading: 
http://repo1.maven.org/maven2/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.pom
Downloaded: 
http://repo1.maven.org/maven2/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.pom
 (947 B at 8.3 KB/sec)
{noformat}

with no mention of Nexus; when I am offline:

{noformat}
[INFO] Archetype defined by properties
Downloading: 
http://repo1.maven.org/maven2/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.jar
Downloading: 
http://localhost:6969/nexus/content/repositories/central/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.jar
Downloaded: 
http://localhost:6969/nexus/content/repositories/central/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.jar
 (4 KB at 128.8 KB/sec)
Downloading: 
http://repo1.maven.org/maven2/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.pom
Downloading: 
http://localhost:6969/nexus/content/repositories/central/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.pom
Downloaded: 
http://localhost:6969/nexus/content/repositories/central/org/codehaus/mojo/archetypes/osgi-archetype/1.2/osgi-archetype-1.2.pom
 (947 B at 57.8 KB/sec)
{noformat}

once this resource is cached in the Nexus mirror repo. (Since the online 
command does not ask Nexus, it normally is _not_ cached there and offline 
project creation simply fails; to force Nexus to cache it, I need to ask Maven 
to download it as a dep of something.)

If I do not specify an explicit {{archetypeRepository}} then I get

{noformat}
[INFO] Archetype repository missing. Using the one from 
[org.codehaus.mojo.archetypes:osgi-archetype:1.2] found in catalog remote
{noformat}

and Nexus is consulted first, but this parameter is needed as a workaround for 
ARCHETYPE-344.

One complicating factor with this example is that the 1.2 release of the 
archetype does not seem to be present in the Central index; I have no clue why. 
(It was released on February 15, i.e. more than three weeks ago, and my 
understanding is that the index is rebuilt weekly.) May not have anything to do 
with this bug, though.

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