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From Romain Pelisse <bela...@gmail.com>
Subject Re: Downloading new snapshot (trigger by timestamp)
Date Mon, 17 Jan 2011 09:41:22 GMT
I just tried the following setting:

<ivysettings>
  <settings defaultResolver="my-resolver" />
  <resolvers>
    <chain name="custom-resolver">
      <url name="main-repo"
           changingPattern="\.\*-SNAPSHOT"
           changingMatcher="regexp"
           checkmodified="false"
           m2compatible="true">
...

But sadly, ivy still do not download the zipfiles which have been
republished on Nexus...

On 15 January 2011 00:27, Maarten Coene <maarten_coene@yahoo.com> wrote:

> Mitch,
>
> I could be wrong, but I took a quick look at the code and it seems to me
> that
> when you define checkmodified="false" in combination with a
> changingPattern, Ivy
> will check the metadata of the changing modules as well.
>
> Maarten
>
>
>
> ----- Original Message ----
> From: Mitch Gitman <mgitman@gmail.com>
> To: ivy-user@ant.apache.org
> Sent: Fri, January 14, 2011 7:01:37 PM
> Subject: Re: Downloading new snapshot (trigger by timestamp)
>
> Let me share some of my own notes, if this helps.
>
> The checkmodified attribute only applies to the Ivy file (or, my
> understanding is, the POM as well)--and to the timestamp of the file.
>
> The checkmodified feature, in itself, checks the metadata only (the
> ivy.xml)
> because the ivy.xml might be getting updated while the artifacts themselves
> are never changing.
>
> Since you're doing what I'd call snapshot versioning (where the artifacts
> are changing while the version, *-SNAPSHOT, remains the same), you can't
> just use checkmodified="true". You also have to use the changingPattern and
> possibly the changingMatcher. With just checkmodified="true", it will get
> the new Ivy file but it will trust the artifacts in the cache.
>
> Even though it is academic at this point, I noticed something erroneous in
> my original response to you. I normally specify changingPattern &
> changingMatcher in combination with checkmodified. I had originally told
> you
> to specify changingPattern and changingMatcher without mentioning
> checkmodified="true". Indeed, in the documentation page you reference, it
> says, "And remember to set checkModified=true" on your resolver too!"
>
> So I have a few questions of my own. Does anyone happen to know what should
> happen when a changingPattern is specified without checkmodified="true"? Is
> there a relevant use case, or perhaps should this be an error?
>
> On Fri, Jan 14, 2011 at 9:38 AM, Romain Pelisse <belaran@gmail.com> wrote:
>
> > After a careful reading of this part of documentation :
> > http://ant.apache.org/ivy/history/latest-milestone/concept.html#change,
> I
> > start to suspect what maybe my issue.
> >
> > As it is rather clearly describe (a tribute to Ivy documentation
> quality),
> > an artifact with the same revision can be perceived as "new" by Ivy only
> if
> > it meta data changes (ie it's pom.xml). However, in my case, if I do
> > publish
> > a new pom.xml this one is differently named than the .zip file. (Indeed,
> as
> > I mention earlier on, I don't use Ivy to download jars but actually zip
> > files - those zip files contained package applications).
> >
> > So I guess, it boils down to how Ivy consider as meta data and what do it
> > actively checks ?
> >
> > I guess I could simply run Ivy in debug mode to learn that, but if one of
> > you could help me (and spare this annoying task) I'll appreciate it
> greatly
> > :)
> >
> > On 14 January 2011 18:12, Romain Pelisse <belaran@gmail.com> wrote:
> >
> > > I just added this to my command line : -Divy.cache.ttl.default=10s
> > >
> > > However, I'm still confused on how the cache will impact what I'm
> trying
> > to
> > > do. The way I understand, but I might be wrong, is that if the cache is
> > > somehow expired or deleted, Ivy will simply download again all the
> > > artefacts. Or I only need it to download jars where timestamp on the
> > nexus
> > > repository has changed. Am I missing something here on how Ivy caches
> > things
> > > ?
> > >
> >
>
>
>
>
>


-- 
Romain PELISSE,
*"The trouble with having an open mind, of course, is that people will
insist on coming along and trying to put things in it" -- Terry Pratchett*
http://belaran.eu/wordpress/belaran

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