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Make requirements on codegen products optional. #6357

Merged
merged 2 commits into from
Aug 17, 2018
Merged

Make requirements on codegen products optional. #6357

merged 2 commits into from
Aug 17, 2018

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benjyw
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@benjyw benjyw commented Aug 17, 2018

We declare product requirements in various places to force
codegen to run before, e.g., dependency resolution.

However currently these requirements are mandatory, so
deregistering all codegen backends will cause the round engine
to find no producers of these products, and fail.

This commit changes these requirements to optional, so
that if there are no codegen backends, we don't attempt
to depend on their products.

@benjyw
Make requirements on codegen products optional.
83b2a1e 
We declare product requirements in various places to force
codegen to run before, e.g., dependency resolution.

However currently these requirements are mandatory, so
deregistering all codegen backends will cause the round engine
to find no producers of these products, and fail.

This commit changes these requirements to optional, so
that if there are no codegen backends, we don't attempt
to depend on their products.
@benjyw benjyw requested review from stuhood and jsirois August 17, 2018 00:05
@benjyw
Minor unrelated documentation nits.
d3be59f 
These weren't worth a separate pull request.
stuhood
stuhood approved these changes Aug 17, 2018
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Thanks.

@benjyw benjyw merged commit f4ab07c into pantsbuild:master Aug 17, 2018
@benjyw benjyw deleted the optional_codegen_resolve_dep branch August 17, 2018 01:43
Eric-Arellano pushed a commit to Eric-Arellano/pants that referenced this pull request Aug 18, 2018
Squashed commit of the following:
4ee781c 
commit f239399
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 22:34:25 2018 -0700

    Remove stray pdb import

commit 3babfb9
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 22:23:19 2018 -0700

    Add back Py3 tests that now work

commit a46b827
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 22:22:52 2018 -0700

    Fix backend python issues

commit 88fa18a
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 20:08:42 2018 -0700

    Fix backend project_info issues

commit f4d4a2d
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 19:54:39 2018 -0700

    Actually fix console separator issues

commit d0c83aa
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 19:38:39 2018 -0700

    Fix issues with backend native

commit 9a1b3b7
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 19:33:48 2018 -0700

    Fix most issues with backend jvm

commit 62bc2a4
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 14:47:42 2018 -0700

    Fix logging issue with passing object to format()

commit a4bf759
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 08:05:07 2018 -0700

    Decode test's execute_task() output

commit b81cd24
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 08:03:57 2018 -0700

    Fix issues with backend graph_info

commit 5d28b9a
Author: Eric Arellano <[email protected]>
Date:   Sun Aug 12 23:13:06 2018 -0700

    Fix console_task's console_separator unicode issues

commit a8674f9
Author: Eric Arellano <[email protected]>
Date:   Sun Aug 12 22:48:42 2018 -0700

    Fix backend codegen unicode vs bytes issues

commit c893f8c
Author: Eric Arellano <[email protected]>
Date:   Sun Aug 12 22:47:04 2018 -0700

    Return unicode from stdout in pants integration test

commit f4ab07c
Author: Benjy Weinberger <[email protected]>
Date:   Thu Aug 16 19:43:41 2018 -0600

    Make requirements on codegen products optional. (pantsbuild#6357)

    We declare product requirements in various places to force
    codegen to run before, e.g., dependency resolution.

    However currently these requirements are mandatory, so
    deregistering all codegen backends will cause the round engine
    to find no producers of these products, and fail.

    This commit changes these requirements to optional, so
    that if there are no codegen backends, we don't attempt
    to depend on their products.

    Also, minor unrelated documentation nits that weren't worth a
    separate pull request.

commit b0a2469
Author: Eric Arellano <[email protected]>
Date:   Thu Aug 16 12:08:29 2018 -0700

    Python 3 - fixes to get green contrib (pantsbuild#6340)

    All contrib folders should now be green on Python 2 and Python 3, excluding `googlejavaformat` and `python`.

    This fixes multiple issues causing Py3 failures + adds Py3 to Travis.

commit 070a5c5
Author: Daniel Wagner-Hall <[email protected]>
Date:   Wed Aug 15 19:30:15 2018 -0700

    Run clippy with nightly rust on CI (pantsbuild#6347)

    This enables all default lints, and a selection of pedantic ones.

    It also fixes all code to be clean with respect to those lints.

    Each commit is independently reviewable.

    It's a shame that the lint selecting can't be shared across creates in some way.

commit 8ce6297
Author: Daniel Wagner-Hall <[email protected]>
Date:   Tue Aug 14 20:04:02 2018 -0700

    Use --entry-point not -c when building pex (pantsbuild#6349)

    I deterministically get this error:

    RuntimeError: Ambiguous script specification pants matches multiple entry points:pants = pants.bin.pants_loader:main pants = pants.bin.pants_loader:main

    when building with -c.

    pantsbuild#6267 changed this behaviour,
    but seems broken - this commit allows me to successfully build pexes.

commit 30878d8
Author: Daniel Wagner-Hall <[email protected]>
Date:   Tue Aug 14 19:11:19 2018 -0700

    Fix formatting of store.rs (pantsbuild#6350)

    It looks like pantsbuild#6336 merged with bad formatting.

commit 5f2ad63
Author: Daniel Wagner-Hall <[email protected]>
Date:   Tue Aug 14 18:40:32 2018 -0700

    Allow pex download path to be overridden (pantsbuild#6348)

commit b7c607f
Author: Stu Hood <[email protected]>
Date:   Tue Aug 14 17:40:34 2018 -0700

    Recover from cancelled remote execution RPCs (pantsbuild#6188)

    ### Problem

    It's possible for an individual RPC to be cancelled while an entire Operation continues, but this is not currently handled. See the problem description on pantsbuild#6100.

    ### Solution

    Recover from `RpcStatus::Cancelled` by retrying the same operation.

    ### Result

    Without the Fixes pantsbuild#6100.

commit a96001e
Author: Ity Kaul <[email protected]>
Date:   Tue Aug 14 16:19:31 2018 -0700

    Download Directory recursively from remote CAS  (pantsbuild#6336)

    ### Problem

    We dont currently have the ability to download a `Directory`, and its contents, recursively.

    ### Solution

    Add `ensure_local_has_recursive_directory()` to be able to download  a `Directory`, and its contents, recursively.

commit e391cd1
Author: Daniel Wagner-Hall <[email protected]>
Date:   Tue Aug 14 16:11:22 2018 -0700

    Process execution: Create symlink to JDK on demand (pantsbuild#6346)

    This creates a symlink `.jdk` pointing at the passed JDK, if one was
    passed.

    This is a hack to allow for a remote execution platform to provide a
    pointer at its pre-installed JDK without needing to pollute absolute
    paths into the action definition.

    Long-term, we want the JDK to be part of the input directory for the
    action, but that's a lot of work, and we want to experiment with
    pre-installed JDKs in the mean time.

commit d79b7c3
Author: Daniel Wagner-Hall <[email protected]>
Date:   Mon Aug 13 21:26:08 2018 -0700

    Simplify ExecuteProcessRequest construction (pantsbuild#6345)

    Remove create_from_snapshot and create_with_empty_snapshot - they don't
    pull their weight.

    Allow default values for all defaultable values.

commit 33674ce
Author: Daniel Wagner-Hall <[email protected]>
Date:   Mon Aug 13 18:57:20 2018 -0700

    Use forked version of grpcio (pantsbuild#6344)

    This includes tikv/grpc-rs#211 which stops us
    seeing RpcFinished errors when the server responds very quickly to
    requests.

    Unfortunately, this will slow down building pants, as you'll need to
    checkout the git repository, but that should be a once-per-machine cost.

commit ccdf523
Author: Daniel Wagner-Hall <[email protected]>
Date:   Mon Aug 13 18:36:28 2018 -0700

    ci.sh uses positive rather than negative flags (pantsbuild#6342)

    This makes it much easier to reason about what's happening, and keeps
    .travis.yml more concise.

commit 68f4b59
Author: Daniel Wagner-Hall <[email protected]>
Date:   Mon Aug 13 16:12:44 2018 -0700

    Merge directories with identical files (pantsbuild#6343)

    This is useful for merging Snapshots for Targets if multiple targets own
    the same file. This should be rare, but does happen (e.g. multiple
    overlapping resource targets).

commit e189acd
Author: Daniel Wagner-Hall <[email protected]>
Date:   Mon Aug 13 09:50:23 2018 -0700

    Set chunk size in process_executor (pantsbuild#6337)

commit 20d267f
Author: Paul <[email protected]>
Date:   Sun Aug 12 14:41:26 2018 -0700

    added fullpath to fix path concat issue with files when not in git root (pantsbuild#6331)

    ### Problem
    As described in pantsbuild#6301 , when the git root and the build root is not the same, `changed` functionalities can be messed up because `git` returns path relative to the working directory, which produces bad paths when it is [concatenated with the git root](https://github.com/pantsbuild/pants/blob/c9f3af460a7504e082931a4b5a668b66f0cd4ed0/src/python/pants/scm/git.py#L161).

    ### Solution
    By adding the `--full-name` tag to [`git ls-files`](https://github.com/pantsbuild/pants/blob/c9f3af460a7504e082931a4b5a668b66f0cd4ed0/src/python/pants/scm/git.py#L178), the file concatenation is done properly

    ### Result
    Doing `./pants list --changed...` will concatenate file names correctly when it is not run from the git root.
benjyw added a commit to benjyw/pants that referenced this pull request Aug 21, 2018
@benjyw
Requirements on language-specific sources should be optional.
0e278e0 
E.g., a repo may have java without scala or vice versa.

This only works today because we implicitly expect codegen tasks
(which produce java and scala), and the deferred sources mapper task, to
be registered.  But not having them registered is a totally
reasonable thing to do (e.g., it improves start up time because
there are fewer options to parse).

This extends the logic of pantsbuild#6357.

The goal is to be able to run pants with just the backends you want.
In fact, once this is possible we should remove all the default registrations
(keeping, say, just graph_info and project_info) and require you to
opt in to whatever lang-specific backends you need.

Debatably, many more, possibly even all, requirements should be optional.
But that's a bigger issue, for another day.
@benjyw benjyw mentioned this pull request Aug 21, 2018
Merged
benjyw added a commit that referenced this pull request Aug 24, 2018
@benjyw
Requirements on language-specific sources should be optional. (#6375)
42cf416 
E.g., a repo may have java without scala or vice versa.

This only works today because we implicitly expect codegen tasks
(which produce java and scala), and the deferred sources mapper task, to
be registered.  But not having them registered is a totally
reasonable thing to do (e.g., it improves start up time because
there are fewer options to parse).

This extends the logic of #6357.

The goal is to be able to run pants with just the backends you want.
In fact, once this is possible we should remove all the default registrations
(keeping, say, just graph_info and project_info) and require you to
opt in to whatever lang-specific backends you need.

Debatably, many more, possibly even all, requirements should be optional.
But that's a bigger issue, for another day.
CMLivingston pushed a commit to CMLivingston/pants that referenced this pull request Aug 27, 2018
@benjyw
Make requirements on codegen products optional. (pantsbuild#6357)
bfe7753 
We declare product requirements in various places to force
codegen to run before, e.g., dependency resolution.

However currently these requirements are mandatory, so
deregistering all codegen backends will cause the round engine
to find no producers of these products, and fail.

This commit changes these requirements to optional, so
that if there are no codegen backends, we don't attempt
to depend on their products.

Also, minor unrelated documentation nits that weren't worth a 
separate pull request.
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@jsirois jsirois jsirois approved these changes

@stuhood stuhood stuhood approved these changes

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@benjyw @stuhood @jsirois