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From: Andrew Purtell <apurtell@apache.org>
Date: Fri, 20 Mar 2015 16:50:30 -0700
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Subject: Re: [VOTE] Accept Groovy into the Apache Incubator
To: "general@incubator.apache.org" <general@incubator.apache.org>
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+1 (binding)

On Wed, Mar 18, 2015 at 11:55 PM, Roman Shaposhnik <rvs@apache.org> wrote:

> Following the discussion earlier in the thread:
>    http://s.apache.org/KWE
>
> I would like to call a VOTE for accepting Groovy
> as a new incubator project.
>
> The proposal is available at:
>     https://wiki.apache.org/incubator/GroovyProposal
> and is also included at the bottom of this email.
>
> Vote is open until at least Saturday, 21st March 2015, 23:59:00 PST
>
>  [ ] +1 accept Groovy in the Incubator
>  [ ] =C2=B10
>  [ ] -1 because...
>
> Thanks,
> Roman.
>
> =3D=3D Abstract =3D=3D
> Groovy is an object-oriented programming language for the Java
> platform. It is a language with features similar to those of Python,
> Ruby, Java, Perl, and Smalltalk.
> Groovy, if accepted by Incubator, will be a first major programming
> language developed under the umbrella of Apache Software Foundation.
>
> =3D=3D Proposal =3D=3D
> Groovy is a programming language for the Java platform. It is a
> primarily dynamic language with features similar to those of Python,
> Ruby, Perl, and Smalltalk. It also has optional static type checking
> and static compilation facilities. It can be used as a scripting
> language for the Java Platform or to write complete applications, is
> compiled to Java Virtual Machine (JVM) bytecode, and interoperates
> with other Java code and libraries. Groovy uses a Java-like
> curly-bracket syntax. Most Java code is also syntactically valid
> Groovy, although semantics may be different. Groovy has long been
> developed under an Apache License v2.0 under an open governance
> community management process. However, so far Groovy has been a
> project mostly sponsored by a single company. This proposal aims at
> bringing Groovy community under the umbrella of the Apache Software
> Foundation.
>
> It must be explicitly noted, that a few sister projects such as Groovy
> Eclipse and others (some of them hosted under
> https://github.com/groovy and listed at
> http://groovy-lang.org/ecosystem.html) are not covered by this
> proposal. It is possible that these other projects will be joining ASF
> either independently or as sub-projects of Apache Groovy in the
> future. For now, we are only proposing groovy-core.
>
> =3D=3D Background =3D=3D
> Groovy 1.0 was released on January 2, 2007, and Groovy 2.0 in July,
> 2012. Groovy 2.5 is planned for release in 2015. Groovy 3.0 is planned
> for release in 2016, with support for a new Meta Object Protocol.
> Since version 2, Groovy can also be compiled statically, offering type
> inference and performance very close to that of Java. Groovy 2.4 will
> be the last major release under Pivotal Software's sponsorship, which
> is scheduled to end on March 31, 2015.
>
> =3D=3D Rationale =3D=3D
> Groovy is a pretty mature language. After 12 years of development, it
> has grown from being primarily a dynamic scripting language on the JVM
> to an optionally statically compiled language allowing the same
> performance level as Java applications. With the release of Groovy
> 2.4, the language targets the largest pool of mobile developers with
> native Android support. Groovy has been integrated in a large number
> of applications, including well known open-source projects like
> Jenkins, Gradle, ElasticSearch, Spring and more.
>
> There are multiple alternative languages on the JVM: Scala, Clojure,
> Ceylon, Kotlin, JRuby, Golo and others but Groovy is the only one
> which has proved to be very easy to integrate with Java in both ways:
> Groovy code using Java code, but also Java code using Groovy code.
> Groovy even provides a joint compiler which allows interdependent Java
> and Groovy classes to compile together. Groovy also supports dynamic
> code generation, that is to say classes at runtime, making it a
> perfect fit for scripting. With a very lightweight and malleable
> syntax, it is also easy to build internal Domain Specific Languages
> (DSLs) which integrate smoothly within applications.
>
> Groovy provides a number of unique features, like builders (Java 8 has
> lambdas but still has syntactic overhead and no notion of delegate),
> AST transformations (compile-time metaprogramming) or type checking
> extensions (which allows the developer to bring the compiler to levels
> of type checking and type inference that go far beyond what other
> languages do). Groovy also provides powerful integration options and
> customizations which set it apart from other languages. Groovy is also
> unique in the way it allows the developer to choose between various
> paradigms without compromise: functional vs object-oriented,
> statically compiled vs dynamic, scripting vs applications, etc.
>
> Despite all those advantages, and the fact that Groovy is widely
> adopted (4.5 million downloads in 2014 for Groovy alone), only a few
> Apache projects include Groovy and not a lot of them leverage its full
> power. Some developers tend to choose Scala for example to build DSLs
> without even knowing that the learning curve is much easier with
> Groovy, or that they can leverage powerful type inference in their own
> DSLs.
>
> Android development is also a domain where the weight of Java and
> old-style APIs is heavy. Groovy 2.4 has proved that Android
> development could benefit from its closures, extension methods and
> static compilation to build applications which are as fast as Java,
> but with code which is much more maintainable and decoupled from
> Android APIs. Code generation libraries like SwissKnife illustrate
> what Groovy can offer for Android development. However, without
> full-time development on this topic, Groovy has a very tough
> competition with languages like Kotlin being intensively (and
> privately) sponsored to target this platform. With Groovy joining
> Apache, we hope that more developers would be able to join the effort
> and help reduce the footprint of the language, build libraries that
> leverage the full power of Groovy while fostering the long-term future
> of the language.
>
>
> =3D=3D Initial Goals =3D=3D
> The initial goals of the Groovy transition under the ASF umbrella are
> to establish a new home for an already fully functioning project and
> also make sure that the entire development community governs itself in
> the "Apache Way".
>
> Please note that a sister project of Groovy -- Grails -- is not part
> of this proposal. If Grails community makes a decision to join ASF it
> will do so as an independent, albeit related, project.
>
> =3D=3D Current Status =3D=3D
> Currently Groovy provides a fully functional implementation licensed
> under ALv2. The project home is at http://groovy-lang.org/ and the
> majority of development is coordinated via GitHub
> https://github.com/groovy. The project sports a very mature
> documentation and ecosystem of projects leveraging it. In fact, quite
> a few existing ASF project have various plugins or subsystems written
> in Groovy (Bigtop, CloudStack, etc.).
>
> =3D=3D=3D Meritocracy =3D=3D=3D
> Groovy, up to this, has been run by a few core project members with a lot
> of
> contributions coming from a wide community of participants in the project=
.
>
> We want to expand our diverse developer and user community and run the
> Groovy project in
> the Apache way clearly signaling not only the licensing, but also the
> governance choice.
>
> Users and new contributors will be treated with respect and welcomed;
> they will earn
> merit in the project by providing quality patches and support that
> move the project forward.
>
> Those with a proven support and quality patch track record will be
> encouraged to become committers.
>
> =3D=3D=3D Community =3D=3D=3D
> There are just a few core team members with over a hundred
> contributors to the project. If Groovy is accepted
> by the Incubator, transitioning the community to embrace the Apache
> Way of governance would be a primary initial goal.
> We would solicit major existing contributors to become committers on
> the project from the get go.
>
> =3D=3D=3D Core Developers =3D=3D=3D
>
> Core developers include folks who are extremely skilled in working in the
> openly
> governed communities on code bases license under the ALv2. The core
> developers are
> NOT currently affiliated with the ASF, although quite a few contributors
> are.
>
> =3D=3D=3D Alignment =3D=3D=3D
>
> Groovy has been integrated into Apache Bigtop, Apache CloudStack,
> Apache Ofbiz and quite a few other projects.
>
> =3D=3D Known Risks =3D=3D
> As noted above, development has been sponsored mostly by a single
> company and coordinated
> mostly by the core team so far.
>
> For Groovy to fully transition to an "Apache Way" governance model it
> needs to
> start embracing the meritocracy-centric way of growing the community
> of contributors
> while balancing it with the needs for extreme stability and coherency
> of the core
> language implementation.
>
> Groovy has historically been hosted at Codehaus. While the project has
> started
> to migrate off the Codehaus infrastructure, some critical tools of the
> project are
> still hosted there: JIRA, the mailing-list, and the deprecated wiki.
> Codehaus has
> announced end-of-support for mid-April, making the migration critical.
>
> =3D=3D=3D Orphaned products =3D=3D=3D
>
> The community proposing Groovy for incubation is a strong and vibrant
> open source
> project. Even though the sponsorship of the core team by Pivotal is
> ending on March 31st,
> the sheer size and diversity of the community is a guarantee against
> the project being orphaned.
>
> =3D=3D=3D Inexperience with Open Source =3D=3D=3D
> The majority of the proposers here have day jobs that has them working ne=
ar
> full-time on open source projects. A few of us have helped carry
> other projects through the Incubator.  Groovy to date has been developed =
as
> an open source project.
>
> =3D=3D=3D Homogeneous Developers =3D=3D=3D
> Now that Pivotal is ending its sponsorship, the initial group of committe=
rs
> is going to be extremely heterogeneous when it comes to corporate
> affiliations.
> The Groovy community is also extremely diverse in terms of geography and
> backgrounds of developers.
>
> =3D=3D=3D Reliance on Salaried Developers =3D=3D=3D
> Most of the contributors are paid to work in the Java ecosystem.
> While we might wander from our current employers, we probably won=E2=80=
=99t
> go far from the Java family tree.
>
> =3D=3D=3D Relationships with Other Apache Products =3D=3D=3D
> Groovy currently has a few ASF projects as optional dependencies but
> otherwise doesn't depend on any ASF projects. A few
> ASF projects already depend on Groovy.
>
> =3D=3D=3D An Excessive Fascination with the Apache Brand =3D=3D=3D
> While we intend to leverage the Apache =E2=80=98branding=E2=80=99 when ta=
lking to other
> projects as testament of our project=E2=80=99s =E2=80=98neutrality=E2=80=
=99, we have no plans
> for making use of Apache brand in press releases nor posting billboards
> advertising acceptance of Groovy into Apache Incubator.
>
>
> =3D=3D Documentation =3D=3D
> See [[http://www.groovy-lang.org/documentation.html|documentation]]
> for the current state of the Groovy
> documentation.
>
> A mature project website is also available at
> [[http://www.groovy-lang.org/|groovy-lang.org]].
>
> =3D=3D Initial Source =3D=3D
> Initial source is available on GitHub under the ALv2
> [[https://github.com/groovy/groovy-core|groovy-core]]
>
>
> =3D=3D Source and Intellectual Property Submission Plan =3D=3D
> We know of no legal encumberments in the way of transfer of source to
> Apache. In fact, given the
> series of corporate due diligence procedures performed on the source
> code during two of the
> acquisitions we expect the code base to be squeaky clean from an IP
> perspective.
>
> =3D=3D External Dependencies =3D=3D
> Embedded dependencies (relocated):
>
>    * Antlr 2, ANTLR 2 License (development branch includes Antlr4
> using BSD license)
>    * ASM, BSD
>    * Openbeans (ALv2)
>    * Apache Commons CLI (ALv2)
>
> Module or optional dependencies:
>
>    * Apache Ant (ALv2)
>    * Apache Commons BSF (ALv2)
>    * Apache Commons Logging (ALv2)
>    * Apache Ivy (ALv2)
>    * Apache Log4j (ALv2)
>    * Apache Log4j 2 (ALv2)
>    * JAnsi (ALv2)
>    * JCommander (ALv2)
>    * JLine 2 (BSD)
>    * JUnit (EPL 1.0)
>    * Logback (EPL 1.0)
>    * QDox (ALv2)
>    * SLF4J (MIT)
>    * TestNG (ALv2)
>
> Build only dependencies:
>
>    * bnd (ALv2)
>    * jarjar (ALv2)
>    * Checkstyle (LGPL)
>    * Cobertura (GPL)
>    * Gradle (ALv2)
>    * Asciidoctor (MIT)
>    * Simian (http://www.harukizaemon.com/simian/get_it_now.html)
>
> Test only dependencies:
>
>    * Apache Commons HTTP Client (ALv2)
>    * Apache Lucene (ALv2)
>    * Eclipse OSGi (EPL 1.0)
>    * GPars (ALv2)
>    * HSQLDB (BSD)
>    * JMock (jMock Project License)
>    * OpenEJB (ALv2)
>    * Spock (ALv2)
>    * XMLUnit 1 (BSD)
>    * XStream (BSD)
>
> Cryptography
> N/A
>
> =3D=3D Required Resources =3D=3D
>
> =3D=3D=3D Mailing lists =3D=3D=3D
>   * private@groovy.incubator.apache.org (moderated subscriptions)
>   * commits@groovy.incubator.apache.org
>   * dev@groovy.incubator.apache.org
>   * issues@groovy.incubator.apache.org
>   * user@groovy.incubator.apache.org
>
> =3D=3D=3D Git Repository =3D=3D=3D
> https://git-wip-us.apache.org/repos/asf/incubator-groovy.git
>
> =3D=3D=3D Issue Tracking =3D=3D=3D
> JIRA Groovy (GROOVY)
>
> =3D=3D=3D Other Resources =3D=3D=3D
>
> A build server is currently sponsored by Jetbrains (TeamCity):
> http://ci.groovy-lang.org?guest=3D1
> The CI server has a number of build plans including multiple JDKs (5
> to 9), 3rd party joint builds and integration with the Groovy website
> (automatic deployment upon push).
>
> Means of setting up regular builds for Groovy on builds.apache.org
>
> =3D=3D Initial Committers =3D=3D
>   * C=C3=A9dric Champeau
>   * Guillaume Laforge
>   * Jochen Theodorou
>   * Paul King
>   * Pascal Schumacher
>
> =3D=3D Affiliations =3D=3D
>   * Pivotal: C=C3=A9dric Champeau, Jochen Theodorou
>   * Restlet: Guillaume Laforge
>   * ASERT: Paul King
>   * Pascal Schumacher
>
> =3D=3D Sponsors =3D=3D
>
> =3D=3D=3D Champion =3D=3D=3D
> Roman Shaposhnik
>
> =3D=3D=3D Nominated Mentors =3D=3D=3D
>   * Bertrand Delacretaz - Apache Member
>   * Emmanuel Lecharny - Apache Member
>   * Jim Jagielski - Apache Member
>   * Roman Shaposhnik - Apache Member
>   * Andrew Bayer - Apache Member
>   * Konstantin Boudnik - IPMC Member
>
> Six mentors is plenty, we are not looking for more mentors at this time.
>
> =3D=3D=3D Sponsoring Entity =3D=3D=3D
> We would like to propose Apache incubator to sponsor this project.
>
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>


--=20
Best regards,

   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein
(via Tom White)

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