Let's not talk about technologies but talk about the use case because the use case will uncover the purpose what target is in the background of this request. Romain, an therefore i was not firstly talking about concret SCM, but Harald, and it means the SCM can be one of the implementations - strategies. Then we will be closer to incremental build...
The problem is that "buildTimeStamp" means one purpose for you and something else for other e.g. build-helper:timestamp-property. Therefore it's better to list all usecases and we will see if we really need build timestamp or another type of timestamp and what about guarantees. Or this solution is only a glue code between POM and the User? Just a question. The usecase would uncover all practicies with this property, even if it is realistic and reliable. T On Sun, Sep 29, 2019 at 8:07 PM Romain Manni-Bucau <rmannibu...@gmail.com> wrote: > scm does not work cause one common use case is to rebuild from source the > same artifacts (debian rebuild from source AFAIK, even java apps) > since scm can be "proxied", copied etc then the source can differ and > therefore commits can be differents but the content can be the same > this is why jib uses epoch+1s to enforce reproducibility. > that said once you have the timestamp the code is the same so let's not > block on that, worse case we would enable to plug a value resolver with a > few default strategy. > this is not the central part of the feature IMHO. > > Romain Manni-Bucau > @rmannibucau <https://twitter.com/rmannibucau> | Blog > <https://rmannibucau.metawerx.net/> | Old Blog > <http://rmannibucau.wordpress.com> | Github < > https://github.com/rmannibucau> | > LinkedIn <https://www.linkedin.com/in/rmannibucau> | Book > < > https://www.packtpub.com/application-development/java-ee-8-high-performance > > > > > Le dim. 29 sept. 2019 à 19:58, Tibor Digana <tibordig...@apache.org> a > écrit : > > > yes Hunter, exactly this was one possibility. > > The names of the property can be just like in the HTTP Headers: > > Last-Modified > > If-Modified-Since -> maybe here can be also the commit hash, not only > time > > in millis/UTC > > ETag > > > > and every module may have different value ;-) then. and then the SCM... > has > > to resolve " If-Modified-Since " to the TIME. > > The missing "..." is some layer useful in the incremental build too. > > > -- Cheers Tibor
