Add python_library -> py_library bp2build support
Bug: 196091681
Test: bp2build/python_library_conversion_test.go
Test: build/bazel/ci/mixed_{libc,droid}.sh
Change-Id: Ice87d75533c97fd9c139dc59de09a039e2713a01
diff --git a/python/library.go b/python/library.go
index 9663b3c..c255190 100644
--- a/python/library.go
+++ b/python/library.go
@@ -17,11 +17,16 @@
// This file contains the module types for building Python library.
import (
+ "fmt"
+
"android/soong/android"
+ "android/soong/bazel"
+ "github.com/google/blueprint/proptools"
)
func init() {
registerPythonLibraryComponents(android.InitRegistrationContext)
+ android.RegisterBp2BuildMutator("python_library", PythonLibraryBp2Build)
}
func registerPythonLibraryComponents(ctx android.RegistrationContext) {
@@ -35,8 +40,63 @@
return module.init()
}
+type bazelPythonLibraryAttributes struct {
+ Srcs bazel.LabelListAttribute
+ Data bazel.LabelListAttribute
+ Srcs_version string
+}
+
+func PythonLibraryBp2Build(ctx android.TopDownMutatorContext) {
+ m, ok := ctx.Module().(*Module)
+ if !ok || !m.ConvertWithBp2build(ctx) {
+ return
+ }
+
+ // a Module can be something other than a python_library
+ if ctx.ModuleType() != "python_library" {
+ return
+ }
+
+ // TODO(b/182306917): this doesn't fully handle all nested props versioned
+ // by the python version, which would have been handled by the version split
+ // mutator. This is sufficient for very simple python_library modules under
+ // Bionic.
+ py3Enabled := proptools.BoolDefault(m.properties.Version.Py3.Enabled, true)
+ py2Enabled := proptools.BoolDefault(m.properties.Version.Py2.Enabled, false)
+ var python_version string
+ if py2Enabled && !py3Enabled {
+ python_version = "PY2"
+ } else if !py2Enabled && py3Enabled {
+ python_version = "PY3"
+ } else if !py2Enabled && !py3Enabled {
+ panic(fmt.Errorf(
+ "error for '%s' module: bp2build's python_library converter doesn't understand having "+
+ "neither py2 nor py3 enabled", m.Name()))
+ } else {
+ // do nothing, since python_version defaults to PY2ANDPY3
+ }
+
+ srcs := android.BazelLabelForModuleSrcExcludes(ctx, m.properties.Srcs, m.properties.Exclude_srcs)
+ data := android.BazelLabelForModuleSrc(ctx, m.properties.Data)
+
+ attrs := &bazelPythonLibraryAttributes{
+ Srcs: bazel.MakeLabelListAttribute(srcs),
+ Data: bazel.MakeLabelListAttribute(data),
+ Srcs_version: python_version,
+ }
+
+ props := bazel.BazelTargetModuleProperties{
+ // Use the native py_library rule.
+ Rule_class: "py_library",
+ }
+
+ ctx.CreateBazelTargetModule(m.Name(), props, attrs)
+}
+
func PythonLibraryFactory() android.Module {
module := newModule(android.HostAndDeviceSupported, android.MultilibBoth)
+ android.InitBazelModule(module)
+
return module.init()
}