Commit graph

20 commits

Author SHA1 Message Date
Cole Faust
c9508aac4c Load starlark files from soong
There are a number of instances where we are exporting information
from soong to bazel via soong_injection. This could be more bazel-centric
if the information was instead held in bzl files, and both bazel and
soong read it from there.

Add a starlark package that will run
//build/bazel/constants_exported_to_soong.bzl at initialization time,
and then results can be retreived with GetStarlarkValue.

Since changes to the starlark files mean that soong has to rerun,
add them as ninja deps.

Unfortunately, the starlark code has to be run at runtime rather than
pregenerating their results, because tests run from intellij wouldn't
go through any pregeneration steps. This means that starlark is run
multiple times during the build, once per test package and once per
primary builder invocation. (currently 3, could be reduced to 2 if we
made the symlink forest generation into its own standalone tool) The
starlark code we have so far in this cl is very fast, roughly half a
millisecond, so it's not a big deal for now, but something to keep an
eye on as we add more starlark constants.

Bug: 279095899
Test: go test
Change-Id: I1e7ca1df1d8d67333cbfc46e8396e229820e4476
2023-04-26 17:18:19 -07:00
Spandan Das
98cb85624c Generate a BUILD file for every Android.bp file in api_bp2build
workspace.

This is necessary to solve bazel package boundary issues where the api
file might exist in a different directory

Test: m api_bp2build && build/bazel/bin/bazel build --config=android
--config=api_bp2build //build/orchestrator/apis:system
Test: multitree_build system/nothing (in multitree)

Change-Id: Id64085d65a1943bdb394ea80c875db96ca373839
2023-03-09 23:15:34 +00:00
Jingwen Chen
cf9e2c8b23 Don't create bp2build_all_srcs filegroups in queryview.
These are not necessary for queryview and can lead to inaccurate query results.

Test: m queryview; grep bp2build_all_srcs
Change-Id: Ifaf65b4ec5828718c2becb39b4507cf033ea4546
2023-03-08 13:32:35 +00:00
Spandan Das
067210f70d Create soong_injection files in ReadWrite mode
The synthetic soong_injection workspace is shared between api_bp2build
(used in API export) and bp2build (used in API domain analysis which
runs mixed builds by default). The former creates them in ReadOnly mode,
but the latter creates them in ReadWrite mode (to allow users to
edit/experiment). To prevent errors in the end-to-end builds in
multittree, make api_bp2build create these files in ReadWrite mode as
well.

Test: mulittree_build locally
Change-Id: I8766d88951a3b625739e4dc12d468450ad7322ea
2022-12-07 01:25:03 +00:00
Cole Faust
6d51e731a6 Copy bazelrc files into the queryview workspace
They are still read when using bazel with queryview, so they
need to be in the workspace so that they can be found.

Bug: 234449134
Test: m queryview && ./build/bazel/bin/bazel query --config=queryview //...
Change-Id: I1f2187dffd5a0e6cfb44ebe0c6738fa9bbef509d
2022-11-29 12:46:48 -08:00
Spandan Das
5af0bd3e48 Create a new mode in soong_ui to generate API only BUILD files
The generated Bazel workspace will only contain api specific targets.
This is feasible since these targets do not have any cross dependencies
with the targets in the bp2build workspace

The advantages of a new mode are
1. Does not pollute bp2build workspace with api targets
2. Does not block api targets with the current allowlist conversion
   mechansims in bp2build
(In the future we might want to combine these two workspaces)

A Soong module type will generate a Bazel target if it implements
ApiProvider interface

Test: m apigen
Test: m nothing

Change-Id: I69c57ca6539f932e0ad554ce84a87fb7936fdba0
2022-10-04 17:32:56 +00:00
Sasha Smundak
0fd93e0756 Output informational messages only when BP2BUILD_VERBOSE is set.
Test: manual
Change-Id: Ieeb00a002e07b04449d70614ce205c47c1dd7bce
2022-07-18 13:34:44 -07:00
Liz Kammer
6eff323206 Expand handling of unconverted deps in bp2build
Support three options for converting modules with unconverted
dependencies
1. (default) Warn when converting a module if it has unconverted deps.
2. Error when encountering a module with unconverted deps. (not hooked
up yet)

Test: build/bazel/ci/bp2build.sh
Test: build/bazel/ci/mixed_libc.sh
Test: BP2BUILD_ERROR_UNCONVERTED=1 build/bazel/ci/bp2build.sh with
      unconverted deps -- get appropriate error
Bug: 181155349
Change-Id: Ifaabf0cd2e43e963366dc137159c705294165c3d
2021-09-14 19:55:55 +00:00
Lukacs T. Berki
7edd91c0f4 Make incremental queryview builds work.
The breakage was because:
- aosp/1818236 removed the "rm -fr" invocation from the Ninja file that
removed the old queryview tree
- queryview files were created with permissions 440 to discourage manual
editing

These two together made incremental queryview invocations not be able to
overwrite its output files.

(Of course, it also made them incorrect since old files were lft in place)

Test: Presubmits.
Change-Id: Idaa3e1db82c9eb8325c48e37aca5146e69af7333
2021-09-07 08:47:21 +02:00
Jingwen Chen
c63677b3c9 Direct Bazel builds from m.
This CL adds support to bp2build/Soong to dump a BUILD file under
out/soong/soong_injection/targets containing alias targets to their real
targets for every converted Soong module, regardless of whether they are
handcrafted or generated.

Test: TH
Change-Id: Ic1816fda5d019c395301618134fac68b3057d752
2021-06-21 06:12:34 +00:00
Rupert Shuttleworth
2a4fc3ecdc Generate BUILD files for every directory that has an Android.bp file.
Test: Added an integration test
Test: bazel build --package_path=out/soong/workspace //bionic/...

Change-Id: Ie34bd23ab3c5428e6c9c9919e5fb6fcb4e709adc
2021-04-21 07:15:50 -04:00
Liz Kammer
ba3ea16f14 Use handcrafted build targets in bp2build
If both bp2build_available and label are specified, label will be
preferred.

Initially, we copy the entire BUILD.bazel file. Eventually we may move
this to use bazel query for a more accurate result.

Test: go test *
Test: build/bazel/scripts/milestone-2/demo.sh full
Test: GENERATE_BAZEL_FILES=true m nothing
      edit bionic/libc/tools/BUILD.bazel
      GENERATE_BAZEL_FILES=true m nothing and verify changes picked up
Bug: 180516554
Change-Id: I43025583300e6b10d2c18032cd4a76237b578d59
2021-03-15 13:09:25 -04:00
Jingwen Chen
164e0867fc bp2build: add a simple UI to report migration progress.
Sample output:

[bp2build] cc_library_headers: 5 targets
[bp2build] cc_object: 5 targets
[bp2build] filegroup: 4 targets
[bp2build] genrule: 4 targets
[bp2build] sh_binary: 1 targets
[bp2build] Generated 19 total BUILD targets from 39270 Android.bp modules.

This CL adds an additional CodegenMetrics return value to
GenerateBazelTargets calls, which are called from bp2build, queryview,
and their tests. For this UI, we only want to use it for bp2build, and
not queryview or tests, since it's not useful for the former, and can
pollute the CLI for the latter.

Test: build/bazel/scripts/milestone-2/demo.sh
Change-Id: Ic84307a1ed1a25e360c9b23459e5449d932bc2e7
2021-02-19 09:30:11 -05:00
Jingwen Chen
4d2c0878a3 bp2build: rename method for readability.
Rename GenerateSoongModuleTargets to GenerateBazelTargets to reflect its return type.

Test: TH
Change-Id: I5359c8f4365750790837a9d412946d0b7fae64b7
2021-02-02 07:06:56 -05:00
Jingwen Chen
33832f96e0 bp2build: introduce CodegenMode.
The CodegenMode enum helps to differentiate between bp2build and queryview modes of generating BUILD files from the Soong module graph.

bp2build is used for generating BUILD files from an unconfigured Soong module graph for Soong->Bazel conversion, whereas QueryView is a front-end for querying the existing Soong configured module graph with Bazel query.

Test: go test

Test: TH
Change-Id: I5709f591f1ae08b2770adf272d8ce60c9ee1f46a
2021-01-26 00:30:30 -05:00
Jingwen Chen
7385067640 bp2build: framework for generating BazelTargetModules.
This CL creates the framework necessary for generating
BazelTargetModules from regular Soong Android modules.
BazelTargetModules are code-generated into Bazel targets in BUILD files.

See the follow-up CL for examples of creating filegroup/genrule
BazelTargetModules.

Test: GENERATE_BAZEL_FILES=true m nothing # creates out/soong/bp2build
with no BUILD files, because there are no BazelTargetModules in the
module graph.

Change-Id: I33a96365bd439043b13af6db9e439592e9983188
2021-01-21 22:46:11 -05:00
Jingwen Chen
daa54bcbba Implement code-generation step for bp2build.
Implement bp2build codegen as a discrete step that runs after an
alternatively registered pipeline of mutators, instead of a
presingleton.

bp2build codegen requires a Context that supports VisitAllModules and
PathContext, so this CL also makes a BpToBuildWrapperContext that
conforms to PathContext by adding two method implementations.

Test: GENERATE_BAZEL_FILES=true m nothing && bazel query //... --config=bp2build | wc -l # 31433
Test: m queryview && bazel query //... --config=queryview # 63638

Change-Id: I0dd359746584b228046d2d0ff00895f28f9bdfc3
2021-01-19 11:03:36 -05:00
Liz Kammer
2dd9ca422d Refactor queryview.
Splits queryview into queryview and bp2build. The latter runs as a
presingleton (could be converted to a singleton). This prevents needing
to run soong_ui a subsequent time to build the query. Queryview remains
as a separate step to prevent increasing runtime due to this generation
every time Soong runs.

Currently this is running as a presingleton as this gives a translation
of Android.bp files after only LoadHooks have run, no mutators.

Test: go tests
Test: m queryview && bazel query --config=queryview //...
Change-Id: If2ba28c7ef60fbd41f43bda6623d41c8c7d23a1b
2021-01-07 14:34:00 -05:00
Jingwen Chen
b24e970c74 Refactor queryview templates into a different file.
Make queryview.go smaller.

Test: m queryview && bazel query --config=queryview //...
Change-Id: I3d3ba688eca6f05d33d1875076e3076ca1cac6ee
2020-11-18 08:54:05 -05:00
Jingwen Chen
50f93d2078 Rename bazel overlay to queryview.
Bazel overlay is an experimental feature. This renames the feature to 'queryview' to better describe its purpose, and also move away from the already overloaded 'overlay' term in Android.

Test: m queryview && bazel query --package_path=out/soong/queryview //...
Change-Id: I8b5068c7db46cb61a03a8e87af9c7c9077ebeff9
2020-11-05 19:17:14 -05:00
Renamed from cmd/soong_build/bazel_overlay.go (Browse further)