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From Christofer Dutz <>
Subject Re: [DISCUSSION] Release 0.4
Date Mon, 06 May 2019 15:41:11 GMT
Hi Julian,

The build already disables the libraries we don't need.
Ok, if you build with all profiles enabled it builds c++ and python, but if you just have
with-proxies enabled it should only build the compiler. The compiler itself is always built
with all outputs and I haven't found a way to avoid this. But it doesn't really take long,
so it didn't bother me.


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Von: Julian Feinauer
Gesendet: Montag, 6. Mai, 16:48
Betreff: Re: [DISCUSSION] Release 0.4

Hi Chris,

thanks for the update.
With the recent commit (d7598ad2fdcbd8730926776e0316cf5d13976183) it now works with the command

` mvn clean install -Pwith-cpp,with-python,with-dotnet,with-proxies,with-sandbox -DskipTests`

Just one thing I noticed.. we build thrift with all code generators from which we do not use
Is there a possibility to disable most of them, this would really increase the build time
drastically, I think.


Am 06.05.19, 15:56 schrieb "Christofer Dutz" <>:

    Hi Julian,

    so it seems that the thrift build successfully built the compiler, but seems to have failed
generating the python library.
    There must be some error message or it even logged that it's not going to build the python
library because one of the dependencies were missing.

    The problem is that if I enable python, the C++ build checks if all prerequisites are
available and simply disables the python output if not all python prerequisites are met. Then
the build succeeds but it didn't generate any python stuff, so when we try to package it,
the assembly plugin fails ...

    What's the output if you execute "python --version" on your commandline?


    Am 06.05.19, 15:39 schrieb "Julian Feinauer" <>:


        I have some issues with the build.
        I did:

        * Check out the latest develop (3e712a66470bef07f8650106553333ea68d8904c) and clean
all non-versioned files from the project
        * one build using `mvn clean install -DskipTests`
        * one build using `mvn clean install -Pwith-cpp,with-python,with-dotnet,with-proxies,with-sandbox`

        The first one works fine on my Mac with OS X Mojave (10.14.4), Java 8 (Hotspot 1.8.0_66-ea).
        The second one fails with

        [ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:3.1.1:single
(package-thrift-python) on project plc4x-tools-thrift: Failed to create assembly: Error creating
assembly archive python: archive cannot be empty -> [Help 1]
        [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
        [ERROR] Re-run Maven using the -X switch to enable full debug logging.
        [ERROR] For more information about the errors and possible solutions, please read
the following articles:
        [ERROR] [Help 1]
        [ERROR] After correcting the problems, you can resume the build with the command
        [ERROR]   mvn <goals> -rf :plc4x-tools-thrift


        Am 06.05.19, 08:51 schrieb "Julian Feinauer" <>:

            Hi all,

            Good idea Chris, I'll do it later in the office and post my result here.

            And thanks Tim for stepping back, I agree that Chris should have the honor and
also had the experience to fix all the incubaror stuff which still is in some templates and

            So I suggest that we all state the work in progress which should go to the release,
if there is any.
            I only am aware of the scraper and S7 types would be great.

            Any other opinions?


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            -------- Ursprüngliche Nachricht --------
            Betreff: Re: [DISCUSSION] Release 0.4
            Von: Christofer Dutz

            One good preparation would be for all to do full builds: with-cpp,with-python,with-dotnet,with-proxies,with-sandbox
... One person did report having problems. Would like to find out why.


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            From: Tim Mitsch <>
            Sent: Monday, May 6, 2019 12:31:43 AM
            Subject: Re: [DISCUSSION] Release 0.4

            Hey everybody,

            full ack ... a soon release shall be done, as we have enough stuff that could
be released.

            I can do the release as i got a great introduction of how to do it with 0.3.1
by Julian, thanks for that btw.
            But i think Chris has the honor to decide if he wants to do the first Release
of PLC4X matured to TLP - would love to support

            I think end of this or beginning of next week could be a good date for a 0.4.0-RC1


            Am 05.05.19, 21:04 schrieb "Christofer Dutz" <>:

                Hi all,

                I also think we should do a release soon. Especially for making a first tlp

                Regarding the RM, I would like to actually perform the technical release this
time. I'm quite sure I changed the graduation related stuff correctly, but with all this super
special additional stuff (CPP, C#, Python, Thrift) I am sorry of expecting bumps on the road.

                I'm fine with Tim doing the paperwork, if he wants to ;-)


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                From: Julian Feinauer <>
                Sent: Sunday, May 5, 2019 7:52:31 PM
                Subject: [DISCUSSION] Release 0.4

                Hi all,

                we also had a short discussion about the next release of PLC4X but I guess
the best place is the list.
                So I think we should start very soon with the preparation of a new release.
                I also think we should include some of the very recent things (Python, CPP)
but explicitly flag them as experimental feature.
                So we can give them out to others but with a clear disclaimer that this is
more a “play around” thing.

                And we are free to target the next release “soon” to add some more things.
                I see that there are a lot of “small” improvements which we really should
get out, and I would also love to start collecting feedback for the “experimental” stuff.

                Another question that came up was who will be RM.
                Tim already volunteered for that, and I absolutely support that to further
diversify the RMs.
                But as the build recently changed it could be a bit complicated so Chris offered
to do it this time.
                I cannot say what is the best solution but leave it up to everybody.

                Perhaps a solution would be to have Tim “manage” it and prepare everything
and then do the maven related stuff with supervision from chris or by chris. By doing this
he gets at least a good knowledge of the process around (branching strat, vote preparation
and so).

                What are your opinions?
                I think we could target something like the end of next week for an RC.


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