Hi David,

Maybe this deserves its own thread?

I also see the behavior you described - the openApiGenerate task
appears to regenerate on each build.  Perhaps this is "expected" when
using the task's "cleanOutput=true" setting?  Or maybe the task just
doesn't track "inputs" the way Gradle tasks typically do, to know when
it needs to run?  Or I guess it's also possible that the Gradle task
in general would behave as desired, but that we've set it up
incorrectly somehow?

In any case, definitely worth a JIRA ticket or a dedicated thread to discuss.

Best,

Jason

On Tue, Aug 13, 2024 at 12:38 PM David Smiley <dsmi...@apache.org> wrote:
>
> If I do "gw compile" twice without doing anything, we should expect a
> fully up-to-date gradle build.   Instead, openApiGenerate outputs a
> bunch of stuff (perhaps it's our most noisy task?) including that it
> cleaned the output and did generation.  My expectation is that it
> should do nothing and ideally print nothing either.
>
> On Thu, Jun 6, 2024 at 9:16 AM David Smiley <dsmi...@apache.org> wrote:
> >
> > Thanks Jason!
> >
> > On Thu, Jun 6, 2024 at 9:02 AM Jason Gerlowski <gerlowsk...@gmail.com> 
> > wrote:
> > >
> > > It worked!  There's a PR here with the fix:
> > > https://github.com/apache/solr/pull/2502. Take a look when you get a
> > > chance and let me know what you think!
> > >
> > > (I haven't created a JIRA ticket, since it's a minor change to our
> > > build.  If anyone would prefer a JIRA ticket to document this beyond
> > > what this dev-thread and Github PR provide, let me know.)
> > >
> > > Best,
> > >
> > > Jason
> > >
> > > On Thu, Jun 6, 2024 at 7:05 AM Jason Gerlowski <gerlowsk...@gmail.com> 
> > > wrote:
> > > >
> > > > Yeah, this is definitely a pain from time to time.
> > > >
> > > > For anyone who hasn't hit this, steps to reproduce are:
> > > >
> > > > 1. Start on a branch that has a new JAX-RS-annotated interface in
> > > > Solr's 'api' module.
> > > > 2. Any gradle task that compiles SolrJ will build Solr's OpenAPI spec,
> > > > generate SolrRequest implementations from that spec, and add them to
> > > > solrj's build directory as a part of its "source set".  These
> > > > generated classes often reference 'model' classes (e.g. request or
> > > > response POJOs) that exist on the current branch, but may not be on
> > > > other branches.
> > > > 3. Switch to a new branch, which lacks the new JAX-RS API.
> > > > 4. If solrj is compiled without running "clean" first, the previously
> > > > generated SolrRequest implementations will fail to compile (because
> > > > the request/response POJOs they rely on are missing).
> > > >
> > > > In terms of *when* this happens, I often see it when changing from a
> > > > PR-branch to main.  Though you can also see it going from 'main' to
> > > > 'branch_9x', if 'main' has a JAX-RS API that hasn't been backported
> > > > yet.
> > > >
> > > > I've been a little despairing in the past about fixing this- I know it
> > > > should be done, but my gradle knowledge is pretty lacking.  Though I
> > > > notice in writing this email that the 'openApiGenerate' task itself
> > > > has a few options that might fix this without any broader gradle
> > > > changes, particularly the "cleanupOutput" and "skipOverwrite" options.
> > > > I'll try playing with those a bit and report back if there's any
> > > > promise.
> > > >
> > > > Best,
> > > >
> > > > Jason
> > > >
> > > >
> > > > On Tue, Jun 4, 2024 at 6:52 PM David Smiley <dsmi...@apache.org> wrote:
> > > > >
> > > > > I noticed some generated source files, and in particular
> > > > > solr/solrj/build/generated/src/main/java/org/apache/solr/client/solrj/request/FileStoreApi.java
> > > > > that suddenly had a compilation issue.  This is almost certainly due
> > > > > to the API evolving, and SOLR-17302 in particular.  Just do "gradlew
> > > > > clean" to start fresh.  I've hit this a couple times for different
> > > > > specific API issues over some months.
> > > > >
> > > > > Still... should the build be smart enough to avoid this?  For example
> > > > > if the generator is blind to the output directory's contents, we may
> > > > > as well clean the generated directory fully first.  On the other hand,
> > > > > maybe it smartly recognizes existing generated stuff and can tell that
> > > > > it doesn't need to re-generate (like javac).
> > > > >
> > > > > ~ David Smiley
> > > > > Apache Lucene/Solr Search Developer
> > > > > http://www.linkedin.com/in/davidwsmiley
> > > > >
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