How can I get Ivy to resolve dependencies (including dependencies with
`changing="true"`) from the local cache when offline/disconnected?
I'm working on a Java-based open-source project that uses Apache Ivy to
resolve and download 3rd party dependencies. The project's `build.xml`
has an ant target named `resolve` that downloads Ivy (if needed) and
then uses Ivy to retrieve the required jars.
Everything works great when online. However, without Internet access,
`ant resolve` fails even if the required jars are in the local Ivy cache
(`~/.ivy2/cache`) and `ivy.cache.ttl.default=eternal`. It appears that
Ivy is trying to connect to the Maven repository to refresh
`changing="true"` dependencies.
The error I get is similar to the following:
[ivy:retrieve] You probably access the destination server through a
proxy server that is not well configured.
[ivy:retrieve] You probably access the destination server through a
proxy server that is not well configured.
[ivy:retrieve]
[ivy:retrieve] :: problems summary ::
[ivy:retrieve] :::: WARNINGS
[ivy:retrieve] Host repo.example.com not found.
url=http://repo.example.com/exampleorg/examplename/examplerev/ivys/ivy.xml
[ivy:retrieve] Host repo.example.com not found.
url=http://repo.example.com/exampleorg/examplename/examplerev/jars/examplename.jar
[ivy:retrieve] module not found:
exampleorg#examplename;examplerev
[ivy:retrieve] ==== local: tried
[ivy:retrieve]
~/.ivy2/local/exampleorg/examplename/examplerev/ivys/ivy.xml
[ivy:retrieve] -- artifact
exampleorg#examplename;examplerev!examplename.jar:
[ivy:retrieve]
~/.ivy2/local/exampleorg/examplename/examplerev/jars/examplename.jar
[ivy:retrieve] ==== shared: tried
[ivy:retrieve]
~/.ivy2/shared/exampleorg/examplename/examplerev/ivys/ivy.xml
[ivy:retrieve] -- artifact
exampleorg#examplename;examplerev!examplename.jar:
[ivy:retrieve]
~/.ivy2/shared/exampleorg/examplename/examplerev/jars/examplename.jar
[ivy:retrieve] ==== repo: tried
[ivy:retrieve]
http://repo.example.com/exampleorg/examplename/examplerev/ivys/ivy.xml
[ivy:retrieve] -- artifact
exampleorg#examplename;examplerev!examplename.jar:
[ivy:retrieve]
http://repo.example.com/exampleorg/examplename/examplerev/jars/examplename.jar
[ivy:retrieve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:retrieve] :: UNRESOLVED DEPENDENCIES ::
[ivy:retrieve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:retrieve] :: exampleorg#examplename;examplerev: not found
[ivy:retrieve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:retrieve]
[ivy:retrieve] :: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
BUILD FAILED
~/exampleproj/build.xml:123: impossible to resolve dependencies:
resolve failed - see output for details
Running `ant -verbose resolve` as suggested by the warning prints the
following line in the output:
[ivy:retrieve] don't use cache for
exampleorg#examplename;examplerev: changing=true
How can I get Ivy to resolve `changing="true"` dependencies from the
cache when offline, but continue to query the repository each build when
online?
Thanks,
Richard
