I am working with Apache Ivy to manage transitive dependencies.
Working with Maven was quite a good experience because if there was any dependency that was not available at a remote directory or available with a different version, then Maven would manage those effectively.
However, Ivy gets stuck with this in my case as I am trying to manage Mule dependencies but it is being difficult for Ivy to manage while Maven manages it well without any problems.
One more important point is that I cannot even exclude any dependency because I don't want to exclude but I want Ivy to be capable enough so that it can manage it all or any other way if any.
Below is a screenshot of the error along with the necessary XML files.
ivy.xml
<ivy-module version="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd">
<info
organisation="MyOrganization"
module="TestForIvySupport"
status="integration">
</info>
<dependencies>
<dependency org="org.mule" name="mule-core" rev="3.6.0"/>
</dependencies>
ivysettings.xml
<settings defaultResolver="chained"/>
<resolvers>
<chain name="chained">
<url name="custom-repo">
<ivy pattern="https://repository.mulesoft.org/nexus/content/groups/public/org/[organisation]/[module]/[revision]/ivy-[revision].xml"/>
<artifact pattern="https://repository.mulesoft.org/nexus/content/groups/public/org/[organisation]/[module]/[revision]/[artifact]-[revision].[ext]"/>
</url>
<ibiblio name="ibiblio" m2compatible="true" root="http://mirrors.ibiblio.org/maven2/"/>
<ibiblio name="ibiblio1" m2compatible="true" root="http://repo1.maven.org/maven2/"/>
</chain>
</resolvers>
build.xml
<project name="test ivy" default="test" xmlns:ivy="antlib:org.apache.ivy.ant">
<target name="test" description="Test ivy installation">
<ivy:settings file="ivysettings.xml"/>
<ivy:retrieve sync="false" pattern="myfolder/[artifact]-[revision].[ext]"/>
</target>
Using your example I had a different error:
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:resolve] :: UNRESOLVED DEPENDENCIES ::
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:resolve] :: org.mule.mvel#mule-mvel2;2.1.9-MULE-005: not found
[ivy:resolve] :: org.mule.common#mule-common;3.6.0: not found
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
I eventually got it working but discovered a broken POM.
<ivy-module version="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd">
<info
organisation="MyOrganization"
module="TestForIvySupport"
status="integration">
</info>
<dependencies>
<!-- Exclude the broken dependency -->
<dependency org="org.mule" name="mule-core" rev="3.6.0" conf="default">
<exclude org="com.github.stephenc.eaio-grabbag" module="grabbag"/>
</dependency>
<!-- Just pull down the jar artifact associated with the module -->
<dependency org="com.github.stephenc.eaio-grabbag" name="grabbag" rev="1.8.1" conf="default">
<artifact name="grabbag" type="jar"/>
</dependency>
</dependencies>
</ivy-module>
Notes:
<ivysettings>
<settings defaultResolver="chained"/>
<resolvers>
<chain name="chained" returnFirst="true">
<ibiblio name="central" m2compatible="true"/>
<ibiblio name="mulesoft" m2compatible="true" root="https://repository.mulesoft.org/nexus/content/groups/public"/>
</chain>
</resolvers>
</ivysettings>
Notes:
I tracked this down to a problem with the parent pom of the "mule-core" module.
There is an override dependency where the property refers to a version of "mule-mvel2" module that doesn't exist in Maven Central
<properties>
..
<muleMvelVersion>2.1.9-MULE-005</muleMvelVersion>
..
</properties>
<dependency>
<groupId>org.mule.mvel</groupId>
<artifactId>mule-mvel2</artifactId>
<version>${muleMvelVersion}</version>
</dependency>
Managed to fix this by adding the following Mulesoft repository.
Trouble shooting this further I discovered a second cascaded error:
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:resolve] :: FAILED DOWNLOADS ::
[ivy:resolve] :: ^ see resolution messages for details ^ ::
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:resolve] :: com.github.stephenc.eaio-grabbag#grabbag;1.8.1!grabbag.non-maven-jar
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
This problem is more serious as it's caused by a misconfigured POM file:
Where the packaging has been changed from the "jar" default
<packaging>non-maven-jar</packaging>
The ivy work-around for is to exclude this broken transitive dependency and then explicitly pull down the jar artifact as a second dependency in the ivy file.
I have raised a github issue with the the project.