I've been struggling for a while trying to figure out how to get Ivy to
download a snapshot artifact. I originally posted a question about this on
StackOverflow last week. I got some good responses, but I'm not getting any
more traction on this. I wanted to start over with a new post here summarizing
what I know so far.
The crux of the problem appears to be that when my Maven build uploads a
snapshot artifact, it gets stored in the Nexus repository with a timestamp in
the name. When Ivy resolves and retrieves this artifact, the resolve succeeds,
but it doesn't retrieve because the file names don't match what is configured
in the Ivy repository definition. I don't understand how to configure the
repository definition so this will work.
I'll describe my configuration verbally, then show the files that specify this.
My app has 9 dependencies, 7 of which I get from Central, 1 of which I get from
our thirdparty repo on our local "MavenCentral" (it's an intranet Nexus Pro
instance with a confusing name), and the one dependency I'm trying to get from
the snapshot repo on the same Nexus Pro instance. The other 8 dependencies,
including the one from the thirdparty repo on the intranet Nexus Pro instance,
resolve and retrieve without error.
I define four resolvers in my resolver chain:
* Local Maven repo
* Snapshots repo on Nexus Pro instance
* Thirdparty repo on Nexus Pro instance
* Central
I have one build target that resolves and retrieves all the dependencies.
If I look inside my Nexus Pro instance at the two artifacts I get from there
(one thirdparty, and one snapshot), I see the following off of the root
directory specified in the repository definition in my ivysettings.xml file:
com/oracle/coherence/12.1.2-0-0/coherence-12.1.2-0-0.jar
This downloads fine.
However, in the snapshot repo, I see files like this:
/com/att/ecom/poc/poc-domain-model/0.0.1-SNAPSHOT/poc-domain-model-0.0.1-20131206.234206-76.jar
/com/att/ecom/poc/poc-domain-model/0.0.1-SNAPSHOT/poc-domain-model-0.0.1-20140210.184009-86.jar
Ivy fails to download this artifact.
(I also wonder if Ivy can possibly know to try to get the snapshot with the
newest timestamp.)
Here are some excerpts from my configuration:
build.xml:
---------------
<target name="install-dependencies">
<ivy:resolve transitive="false" type="jar"/>
<ivy:retrieve conf="*" type="jar"
pattern="${basedir}/lib/[artifact]-[type]-[revision].[ext]"/>
</target>
---------------
ivy.xml:
---------------
<ivy-module version="2.0">
<info organisation="com.att.ecom.poc" module="coherence_poc"/>
<dependencies>
<dependency org="com.att.ecom.poc" name="poc-domain-model"
rev="0.0.1-SNAPSHOT"/>
<dependency org="org.apache.commons" name="commons-lang3" rev="3.1"/>
<dependency org="org.springframework" name="spring-aop"
rev="4.0.0.RELEASE"/>
<dependency org="org.springframework" name="spring-beans"
rev="4.0.0.RELEASE"/>
<dependency org="org.springframework" name="spring-context"
rev="4.0.0.RELEASE"/>
<dependency org="org.springframework" name="spring-core"
rev="4.0.0.RELEASE"/>
<dependency org="org.springframework" name="spring-expression"
rev="4.0.0.RELEASE"/>
<dependency org="org.springframework" name="spring-web"
rev="4.0.0.RELEASE"/>
<dependency org="com.oracle.coherence" name="coherence" rev="12.1.2-0-0"/>
</dependencies>
</ivy-module>
-------------------
ivysettings.xml:
-------------------
<ivysettings>
<settings defaultResolver="default"/>
<property name="m2-pattern"
value="${user.home}/.m2/repository/[organisation]/[module]/[revision]/[module]-[revision](-[classifier]).[ext]"
override="false" />
<resolvers>
<chain name="default">
<filesystem name="local-maven2" m2compatible="true" >
<artifact pattern="${m2-pattern}"/>
<ivy pattern="${m2-pattern}"/>
</filesystem>
<ibiblio name="mavenCentralSnapshots" m2compatible="true"
root="http://mavencentral/nexus/content/repositories/cditspoc-snapshots"/>
<ibiblio name="mavenCentralThirdparty" m2compatible="true"
root="http://mavencentral/nexus/content/repositories/cditspoc-3rd-party"/>
<ibiblio name="central" m2compatible="true"/>
</chain>
</resolvers>
</ivysettings>
-------------------
This is an excerpt from my IvyDE console in Eclipse (shouldn't I be able to get
this output in some way from the command-line build?):
-----------------------------
Sort done for : com.att.ecom.poc#poc-domain-model;0.0.1-SNAPSHOT
storing dependency com.att.ecom.poc#poc-domain-model;0.0.1-SNAPSHOT in props
resolved ivy file produced in cache
:: downloading artifacts ::
trying
C:\Users\myhome\.ivy2\shared\com.att.ecom.poc\poc-domain-model\0.0.1-SNAPSHOT\bundles\poc-domain-model.jar
tried
C:\Users\myhome\.ivy2\shared\com.att.ecom.poc\poc-domain-model\0.0.1-SNAPSHOT\bundles\poc-domain-model.jar
shared: resource not reachable for
com.att.ecom.poc#poc-domain-model;0.0.1-SNAPSHOT:
res=C:\Users\myhome\.ivy2\shared\com.att.ecom.poc\poc-domain-model\0.0.1-SNAPSHOT\bundles\poc-domain-model.jar
maven-metadata not available:
http://repo1.maven.org/maven2/com/att/ecom/poc/poc-domain-model/0.0.1-SNAPSHOT/maven-metadata.xml
trying
http://repo1.maven.org/maven2/com/att/ecom/poc/poc-domain-model/0.0.1-SNAPSHOT/poc-domain-model-0.0.1-SNAPSHOT.jar
tried
http://repo1.maven.org/maven2/com/att/ecom/poc/poc-domain-model/0.0.1-SNAPSHOT/poc-domain-model-0.0.1-SNAPSHOT.jar
public: resource not reachable for
com/att/ecom/poc#poc-domain-model;0.0.1-SNAPSHOT:
res=http://repo1.maven.org/maven2/com/att/ecom/poc/poc-domain-model/0.0.1-SNAPSHOT/poc-domain-model-0.0.1-SNAPSHOT.jar
WARN: [FAILED ]
com.att.ecom.poc#poc-domain-model;0.0.1-SNAPSHOT!poc-domain-model.jar(bundle):
(0ms)
WARN: ==== shared: tried
WARN:
C:\Users\myhome\.ivy2\shared\com.att.ecom.poc\poc-domain-model\0.0.1-SNAPSHOT\bundles\poc-domain-model.jar
WARN: ==== public: tried
WARN:
http://repo1.maven.org/maven2/com/att/ecom/poc/poc-domain-model/0.0.1-SNAPSHOT/poc-domain-model-0.0.1-SNAPSHOT.jar
-----------------------
What's curious from this output is that it never even attempts to download the
artifact from the Nexus Pro snapshots repo. It never even tried that
repository.
