One pitfall I noted with javac wrappers is that if you dont clean - and
loose javac incremental support then deleted classes stay here and are
considered in the output. Common example is a nested class which has been
deleted leading to a corrupted enclosing class or a test which is ran but
deleted from java/. Any known way to protect us from it and keep the
uncremental support for big modules?

Le 25 janv. 2018 01:22, "Lukasz Cwik" <lc...@google.com> a écrit :

> Dependency driven works, incremental works for most java modules.
> I use incremental almost all the time and just do one validation pass at
> the end before opening the PR where I use '--rerun-tasks' to be sure.
> Allows me to iterate on a task in seconds.
>
> On Wed, Jan 24, 2018 at 4:07 PM, Kenneth Knowles <k...@google.com> wrote:
>
>> These are two different things: dependency-driven build (which works) and
>> incremental build (which seems not to, at least right now?).
>>
>> On Wed, Jan 24, 2018 at 2:24 PM, Romain Manni-Bucau <
>> rmannibu...@gmail.com> wrote:
>>
>>> Hmm, I'll try to refine it then next time we work with Ismael but can be
>>> a setup issue or a human (bad command) issue at the end. Thanks for the
>>> help, will make next iteration way easier probably :)
>>>
>>>
>>> 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>
>>>
>>> 2018-01-24 23:05 GMT+01:00 Lukasz Cwik <lc...@google.com>:
>>>
>>>> Tasks always run any dependencies that are required. So if you ask to
>>>> run test it shouldn't run javadoc/checkstyle/... but should compile the
>>>> code and compile the code of all dependencies. test should never have a
>>>> dependency on checkstyle or javadoc or similar 'check' like tasks as they
>>>> shouldn't be needed.
>>>>
>>>> I set up the gradle build so that everytime you run a command in
>>>> gradle, it generates a task dependency tree dot file (look for visteg.dot
>>>> inside build/reports). I uploaded this one to imgur[1] for the
>>>> ':sdks:java:core:build' task to show what tasks are required. Note that
>>>> 'sdks:java:core:test' doesn't depend on checkstyle or spotless.
>>>>
>>>> 1: https://imgur.com/a/ZvYUX
>>>>
>>>> On Wed, Jan 24, 2018 at 12:50 PM, Romain Manni-Bucau <
>>>> rmannibu...@gmail.com> wrote:
>>>>
>>>>> Hmm, do I miss something or it only works for iterative runs when
>>>>> trying to identify an issue and not for the case you rebuild due to code
>>>>> changes (where you would need like 5-6 tasks at least - generate, compile,
>>>>> test, ...)?
>>>>>
>>>>> In case it is unclear: there are 2 needs: direct execution/task ->
>>>>> fulfilled and clarified now (just a doc issue I think), fast cycle 
>>>>> skipping
>>>>> not mandatory tasks like style related ones
>>>>>
>>>>>
>>>>> 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>
>>>>>
>>>>> 2018-01-24 19:50 GMT+01:00 Lukasz Cwik <lc...@google.com>:
>>>>>
>>>>>> Gradle already has each task explicitly broken out. Kenn is pointing
>>>>>> out that you your development use case shouldn't use the './gradlew
>>>>>> :sdks:java:core:build' task since it is really an aggregator that
>>>>>> represents do everything within that project. This is the current list of
>>>>>> tasks available for :sdks:java:core:
>>>>>> :sdks:java:core:assemble  - Assembles the outputs of this project.
>>>>>> :sdks:java:core:build  - Assembles and tests this project.
>>>>>> :sdks:java:core:buildDependents  - Assembles and tests this project
>>>>>> and all projects that depend on it.
>>>>>> :sdks:java:core:buildEnvironment  - Displays all buildscript
>>>>>> dependencies declared in project :sdks:java:core.
>>>>>> :sdks:java:core:buildNeeded  - Assembles and tests this project and
>>>>>> all projects it depends on.
>>>>>> :sdks:java:core:check  - Runs all checks.
>>>>>> :sdks:java:core:checkstyleMain  - Run Checkstyle analysis for main
>>>>>> classes
>>>>>> :sdks:java:core:checkstyleTest  - Run Checkstyle analysis for test
>>>>>> classes
>>>>>> :sdks:java:core:classes  - Assembles main classes.
>>>>>> :sdks:java:core:clean  - Deletes the build directory.
>>>>>> :sdks:java:core:compileJava  - Compiles main Java source.
>>>>>> :sdks:java:core:compileTestJava  - Compiles test Java source.
>>>>>> :sdks:java:core:components  - Displays the components produced by
>>>>>> project :sdks:java:core. [incubating]
>>>>>> :sdks:java:core:dependencies  - Displays all dependencies declared in
>>>>>> project :sdks:java:core.
>>>>>> :sdks:java:core:dependencyInsight  - Displays the insight into a
>>>>>> specific dependency in project :sdks:java:core.
>>>>>> :sdks:java:core:dependencyReport  - Generates a report about your
>>>>>> library dependencies.
>>>>>> :sdks:java:core:dependentComponents  - Displays the dependent
>>>>>> components of components in project :sdks:java:core. [incubating]
>>>>>> :sdks:java:core:findbugsMain  - Run FindBugs analysis for main classes
>>>>>> :sdks:java:core:findbugsTest  - Run FindBugs analysis for test classes
>>>>>> :sdks:java:core:generateAvroJava  - Generates main Avro Java source
>>>>>> files from schema/protocol definition files.
>>>>>> :sdks:java:core:generateAvroProtocol  - Generates main Avro protocol
>>>>>> definition files from IDL files.
>>>>>> :sdks:java:core:generateTestAvroJava  - Generates test Avro Java
>>>>>> source files from schema/protocol definition files.
>>>>>> :sdks:java:core:generateTestAvroProtocol  - Generates test Avro
>>>>>> protocol definition files from IDL files.
>>>>>> :sdks:java:core:help  - Displays a help message.
>>>>>> :sdks:java:core:htmlDependencyReport  - Generates an HTML report
>>>>>> about your library dependencies.
>>>>>> :sdks:java:core:install  - Installs the archives artifacts into the
>>>>>> local Maven repository.
>>>>>> :sdks:java:core:jacocoTestCoverageVerification  - Verifies code
>>>>>> coverage metrics based on specified rules for the test task.
>>>>>> :sdks:java:core:jacocoTestReport  - Generates code coverage report
>>>>>> for the test task.
>>>>>> :sdks:java:core:jar  - Assembles a jar archive containing the main
>>>>>> classes.
>>>>>> :sdks:java:core:javadoc  - Generates Javadoc API documentation for
>>>>>> the main source code.
>>>>>> :sdks:java:core:knows  - Do you know who knows?
>>>>>> :sdks:java:core:model  - Displays the configuration model of project
>>>>>> :sdks:java:core. [incubating]
>>>>>> :sdks:java:core:packageTests  -
>>>>>> :sdks:java:core:processResources  - Processes main resources.
>>>>>> :sdks:java:core:processTestResources  - Processes test resources.
>>>>>> :sdks:java:core:projectReport  - Generates a report about your
>>>>>> project.
>>>>>> :sdks:java:core:projects  - Displays the sub-projects of project
>>>>>> :sdks:java:core.
>>>>>> :sdks:java:core:properties  - Displays the properties of project
>>>>>> :sdks:java:core.
>>>>>> :sdks:java:core:propertyReport  - Generates a report about your
>>>>>> properties.
>>>>>> :sdks:java:core:shadowJar  - Create a combined JAR of project and
>>>>>> runtime dependencies
>>>>>> :sdks:java:core:shadowTestJar  -
>>>>>> :sdks:java:core:spotlessApply  - Applies code formatting steps to
>>>>>> sourcecode in-place.
>>>>>> :sdks:java:core:spotlessCheck  - Checks that sourcecode satisfies
>>>>>> formatting steps.
>>>>>> :sdks:java:core:spotlessJava  -
>>>>>> :sdks:java:core:spotlessJavaApply  -
>>>>>> :sdks:java:core:spotlessJavaCheck  -
>>>>>> :sdks:java:core:taskReport  - Generates a report about your tasks.
>>>>>> :sdks:java:core:tasks  - Displays the tasks runnable from project
>>>>>> :sdks:java:core.
>>>>>> :sdks:java:core:testClasses  - Assembles test classes.
>>>>>> :sdks:java:core:test  - Runs the unit tests.
>>>>>> :sdks:java:core:updateOfflineRepository  -
>>>>>>
>>>>>> So if you specify the ':sdks:java:core:test' task then only the
>>>>>> tests run (and any dependent tasks which are not up to date), while 
>>>>>> ':sdks:java:core:check'
>>>>>> runs the suite of all checks. If your working on two modules and want to
>>>>>> run the tests for both you really want to specify each explicit end goal
>>>>>> that you want like ':sdks:java:core:test' and ':sdks:java:harness:test'.
>>>>>> Unfortunately incremental builds (https://issues.apache.org/jir
>>>>>> a/browse/BEAM-3253) are unreliable in a few of the modules (like sql
>>>>>> and python) so you may find that you need to specify --rerun-tasks to 
>>>>>> make
>>>>>> sure that all tasks are rerun even if Gradle thinks they are up to date.
>>>>>>
>>>>>> On Tue, Jan 23, 2018 at 3:38 PM, Romain Manni-Bucau <
>>>>>> rmannibu...@gmail.com> wrote:
>>>>>>
>>>>>>> Can have mischecked gradle setup but I don't think we are here yet,
>>>>>>> if you are not bound in a module and work accross 2 modules and iterate
>>>>>>> between working on both and one, you will likely not bypass the "checks"
>>>>>>> in  a satisfying way without a long -x command, is there a magic flag I
>>>>>>> missed?
>>>>>>> Also not sure about the last point and how gradle helps here - it is
>>>>>>> rather the opposite due to the way it loads it model IMHO - so not sure
>>>>>>> what would be the consequence in terms of action(s) but can have missed 
>>>>>>> the
>>>>>>> point.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> 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>
>>>>>>>
>>>>>>> 2018-01-24 0:20 GMT+01:00 Kenneth Knowles <k...@google.com>:
>>>>>>>
>>>>>>>> On Tue, Jan 23, 2018 at 2:51 PM, Romain Manni-Bucau <
>>>>>>>> rmannibu...@gmail.com> wrote:
>>>>>>>>
>>>>>>>> Hmm, did you read it right Kenn? I think the idea was to skip all
>>>>>>>>> validation/sanity checks tasks at once (gradle xxxx -Pfast) instead of
>>>>>>>>> doing it manually (gradle -x findbugs -x checkstyle etc...)
>>>>>>>>>
>>>>>>>>
>>>>>>>> Yes, I read it right. We all want the same thing - not doing a
>>>>>>>> bunch of extra useless unrequested stuff when developing. The concept 
>>>>>>>> of
>>>>>>>> skipping is backwards. We don't need configs that skip things, because 
>>>>>>>> in a
>>>>>>>> correct dependency-driven build they are already not running.
>>>>>>>>
>>>>>>>> So since I don't want to pretend to know gradle's invocations yet I
>>>>>>>> will call it $TOOL. Here's a collection of imaginary commands:
>>>>>>>>
>>>>>>>>     $TOOL :sdks:java:core:unittest  # or $TOOL test :sdks:java:core
>>>>>>>> or whatever
>>>>>>>>     $TOOL :sdks:java:core:findbugs
>>>>>>>>     $TOOL :sdks:java:core:checkstyle
>>>>>>>>     $TOOL :sdks:java:core:javadoc
>>>>>>>>
>>>>>>>> None of these causes any of the others to run. Anything else is a
>>>>>>>> bug. The `findbugs` and `test` cause a build of the needed jars and 
>>>>>>>> nothing
>>>>>>>> else.
>>>>>>>>
>>>>>>>> Another example:
>>>>>>>>
>>>>>>>>     $TOOL :runners:core-java:unittest
>>>>>>>>
>>>>>>>> This builds the model, the core SDK, and the runners-core module,
>>>>>>>> then runs the unit tests of the runners-core module. It does not test 
>>>>>>>> SDK
>>>>>>>> core, or run any javadoc, findbugs, or checkstyle on any module. 
>>>>>>>> Anything
>>>>>>>> else is a bug.
>>>>>>>>
>>>>>>>> Now, to build a precommit that is easy to reproduce on one line,
>>>>>>>> you could build a compound task
>>>>>>>>
>>>>>>>>     $TOOL :sdks:java:core:precommit  # runs a selection of targets
>>>>>>>> that we define
>>>>>>>>
>>>>>>>> At this point you might want to skip things from the :verify task
>>>>>>>> here. But really, you probably just want to run the things you are
>>>>>>>> interested in and you don't need custom hooks in the aggregated task.
>>>>>>>>
>>>>>>>> My understanding is that gradle can support all of this, if we are
>>>>>>>> disciplined. Getting to this point is the main/only reason I supported
>>>>>>>> gradle.
>>>>>>>>
>>>>>>>> Kenn
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>
>>>>>>>>>> Kenn
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> >>
>>>>>>>>>>> >> diff --git a/examples/java/build.gradle
>>>>>>>>>>> b/examples/java/build.gradle
>>>>>>>>>>> >> index 0fc0b17df..001bd8b38 100644
>>>>>>>>>>> >> --- a/examples/java/build.gradle
>>>>>>>>>>> >> +++ b/examples/java/build.gradle
>>>>>>>>>>> >> @@ -130,7 +130,7 @@ def preCommitAdditionalFlags = [
>>>>>>>>>>> >>    dataflowStreamingRunner: [ "--streaming=true" ],
>>>>>>>>>>> >>  ]
>>>>>>>>>>> >>  for (String runner : preCommitRunners) {
>>>>>>>>>>> >> -  tasks.create(name: runner + "PreCommit", type: Test) {
>>>>>>>>>>> >> +  tasks.create(name: runner + "PreCommit", type: Test,
>>>>>>>>>>> description: "Run tests
>>>>>>>>>>> >> for runner ${runner.replace('Runner', '')}") {
>>>>>>>>>>> >>      def preCommitBeamTestPipelineOptions = [
>>>>>>>>>>> >>         "--project=apache-beam-testing",
>>>>>>>>>>> >>         "--tempRoot=gs://temp-storage-for-end-to-end-tests",
>>>>>>>>>>> >>
>>>>>>>>>>> >>
>>>>>>>>>>> >>
>>>>>>>>>>> >> 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>
>>>>>>>>>>> >>
>>>>>>>>>>> >> 2018-01-23 8:45 GMT+01:00 Jean-Baptiste Onofré <
>>>>>>>>>>> j...@nanthrax.net
>>>>>>>>>>> >> <mailto:j...@nanthrax.net>>:
>>>>>>>>>>> >>
>>>>>>>>>>> >>     Hi Romain,
>>>>>>>>>>> >>
>>>>>>>>>>> >>     I think we are pretty close: agree to add some explicit
>>>>>>>>>>> tasks & projects names.
>>>>>>>>>>> >>
>>>>>>>>>>> >>     We can add additional tasks like skipAudit, for instance.
>>>>>>>>>>> >>
>>>>>>>>>>> >>     As reminder, gradle tasks provides the list of tasks and
>>>>>>>>>>> gradle projects
>>>>>>>>>>> >>     provides the list of projects/modules.
>>>>>>>>>>> >>
>>>>>>>>>>> >>     Regards
>>>>>>>>>>> >>     JB
>>>>>>>>>>> >>
>>>>>>>>>>> >>     On 01/23/2018 08:12 AM, Romain Manni-Bucau wrote:
>>>>>>>>>>> >>     > Hmm, I have to admit docs dont have my favor cause they
>>>>>>>>>>> are easily outdated and
>>>>>>>>>>> >>     > hard to search but you hit a good point. Starting by
>>>>>>>>>>> renaming properly the tasks
>>>>>>>>>>> >>     > and maybe writing what is done in build files - since
>>>>>>>>>>> it is code and even "api
>>>>>>>>>>> >>     > for dev", it requires as much comments than the main
>>>>>>>>>>> api - can be better to start.
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     > Also a big switch flag to bypass
>>>>>>>>>>> checkstyle/findbugs/... can be good while in
>>>>>>>>>>> >>     > dev since these phases cost a looot for nothing while
>>>>>>>>>>> you validates your code in
>>>>>>>>>>> >>     > runners modules for instance.
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     > Le 23 janv. 2018 07:15, "Kenneth Knowles" <
>>>>>>>>>>> k...@google.com <mailto:k...@google.com>
>>>>>>>>>>> >>     > <mailto:k...@google.com <mailto:k...@google.com>>> a
>>>>>>>>>>> écrit :
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     >     On Mon, Jan 22, 2018 at 10:03 PM, Romain
>>>>>>>>>>> Manni-Bucau <rmannibu...@gmail.com <mailto:rmannibu...@gmail.com
>>>>>>>>>>> >
>>>>>>>>>>> >>     >     <mailto:rmannibu...@gmail.com <mailto:
>>>>>>>>>>> rmannibu...@gmail.com>>> wrote:
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     >         @Kenneth: why not dropping the doc for a script
>>>>>>>>>>> with comments in the
>>>>>>>>>>> >>     >         project? A "RUNME.sh" ;).
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     >     That's cool, too, but also any shell one liner can
>>>>>>>>>>> be a gradle one
>>>>>>>>>>> >>     liner or
>>>>>>>>>>> >>     >     mvn two/three liner :-). it is just trading one
>>>>>>>>>>> command that you cannot
>>>>>>>>>>> >>     >     guess easily for a different one that you still
>>>>>>>>>>> can't guess easily.
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     >     For example, are the SparkRunner ValidatesRunner
>>>>>>>>>>> tests in the
>>>>>>>>>>> >>     SparkRunner or
>>>>>>>>>>> >>     >     the core SDK or a third module that integrates the
>>>>>>>>>>> two? And why would you
>>>>>>>>>>> >>     >     know that the example ITs are called
>>>>>>>>>>> "sparkRunnerPreCommit"? It
>>>>>>>>>>> >>     doesn't even
>>>>>>>>>>> >>     >     make sense really to have "precommit" or
>>>>>>>>>>> "postcommit" except as aliases to
>>>>>>>>>>> >>     >     make it easy to repro Jenkins' behavior - they have
>>>>>>>>>>> no other intrinsic
>>>>>>>>>>> >>     meaning.
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     >     So I was proposing a mapping from "full sentence +
>>>>>>>>>>> description" to one
>>>>>>>>>>> >>     liner
>>>>>>>>>>> >>     >     to help people navigate the targets that we set up.
>>>>>>>>>>> Some web page or doc
>>>>>>>>>>> >>     >     that people can just quickly scan to find out to do
>>>>>>>>>>> common things, easier
>>>>>>>>>>> >>     >     than groovy or XML.
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     >     Kenn
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>     >
>>>>>>>>>>> >>
>>>>>>>>>>> >>     --
>>>>>>>>>>> >>     Jean-Baptiste Onofré
>>>>>>>>>>> >>     jbono...@apache.org <mailto:jbono...@apache.org>
>>>>>>>>>>> >>     http://blog.nanthrax.net
>>>>>>>>>>> >>     Talend - http://www.talend.com
>>>>>>>>>>> >>
>>>>>>>>>>> >>
>>>>>>>>>>> >
>>>>>>>>>>> > --
>>>>>>>>>>> > Jean-Baptiste Onofré
>>>>>>>>>>> > jbono...@apache.org
>>>>>>>>>>> > http://blog.nanthrax.net
>>>>>>>>>>> > Talend - http://www.talend.com
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

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