Use one mutator for all bp2build conversion.

Each conversion required defining a separate mutator, which will each
operate on _all_ modules and requires each to repeat checks whether the
mutator should operator. Instead, we introduce a single mutator and
modules can define a ConvertWithBp2build to implement bp2build
conversion for that module.

Test: bp2build.sh
Bug: 183079158
Change-Id: I99d4b51f441c2903879092c5b56313d606d4338d
This commit is contained in:
Liz Kammer
2021-11-01 15:32:43 -04:00
parent d469eefcc3
commit be46fccc40
46 changed files with 689 additions and 1010 deletions

View File

@@ -27,7 +27,6 @@ import (
func init() {
registerPythonBinaryComponents(android.InitRegistrationContext)
android.RegisterBp2BuildMutator("python_binary_host", PythonBinaryBp2Build)
}
func registerPythonBinaryComponents(ctx android.RegistrationContext) {
@@ -41,17 +40,7 @@ type bazelPythonBinaryAttributes struct {
Python_version *string
}
func PythonBinaryBp2Build(ctx android.TopDownMutatorContext) {
m, ok := ctx.Module().(*Module)
if !ok || !m.ConvertWithBp2build(ctx) {
return
}
// a Module can be something other than a python_binary_host
if ctx.ModuleType() != "python_binary_host" {
return
}
func pythonBinaryBp2Build(ctx android.TopDownMutatorContext, m *Module) {
var main *string
for _, propIntf := range m.GetProperties() {
if props, ok := propIntf.(*BinaryProperties); ok {

View File

@@ -17,8 +17,6 @@ package python
// This file contains the module types for building Python library.
import (
"fmt"
"android/soong/android"
"android/soong/bazel"
@@ -27,8 +25,6 @@ import (
func init() {
registerPythonLibraryComponents(android.InitRegistrationContext)
android.RegisterBp2BuildMutator("python_library_host", PythonLibraryHostBp2Build)
android.RegisterBp2BuildMutator("python_library", PythonLibraryBp2Build)
}
func registerPythonLibraryComponents(ctx android.RegistrationContext) {
@@ -50,25 +46,7 @@ type bazelPythonLibraryAttributes struct {
Srcs_version *string
}
func PythonLibraryHostBp2Build(ctx android.TopDownMutatorContext) {
pythonLibBp2Build(ctx, "python_library_host")
}
func PythonLibraryBp2Build(ctx android.TopDownMutatorContext) {
pythonLibBp2Build(ctx, "python_library")
}
func pythonLibBp2Build(ctx android.TopDownMutatorContext, modType string) {
m, ok := ctx.Module().(*Module)
if !ok || !m.ConvertWithBp2build(ctx) {
return
}
// a Module can be something other than a `modType`
if ctx.ModuleType() != modType {
return
}
func pythonLibBp2Build(ctx android.TopDownMutatorContext, m *Module) {
// 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
@@ -81,9 +59,7 @@ func pythonLibBp2Build(ctx android.TopDownMutatorContext, modType string) {
} else if !py2Enabled && py3Enabled {
python_version = &pyVersion3
} else if !py2Enabled && !py3Enabled {
panic(fmt.Errorf(
"error for '%s' module: bp2build's %s converter doesn't understand having "+
"neither py2 nor py3 enabled", m.Name(), modType))
ctx.ModuleErrorf("bp2build converter doesn't understand having neither py2 nor py3 enabled")
} else {
// do nothing, since python_version defaults to PY2ANDPY3
}

View File

@@ -23,6 +23,7 @@ import (
"strings"
"android/soong/bazel"
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
@@ -667,18 +668,25 @@ func (p *Module) createSrcsZip(ctx android.ModuleContext, pkgPath string) androi
}
// isPythonLibModule returns whether the given module is a Python library Module or not
// This is distinguished by the fact that Python libraries are not installable, while other Python
// modules are.
func isPythonLibModule(module blueprint.Module) bool {
if m, ok := module.(*Module); ok {
// Python library has no bootstrapper or installer
if m.bootstrapper == nil && m.installer == nil {
return true
}
return m.isLibrary()
}
return false
}
// This is distinguished by the fact that Python libraries are not installable, while other Python
// modules are.
func (p *Module) isLibrary() bool {
// Python library has no bootstrapper or installer
return p.bootstrapper == nil && p.installer == nil
}
func (p *Module) isBinary() bool {
_, ok := p.bootstrapper.(*binaryDecorator)
return ok
}
// collectPathsFromTransitiveDeps checks for source/data files for duplicate paths
// for module and its transitive dependencies and collects list of data/source file
// zips for transitive dependencies.
@@ -752,6 +760,14 @@ func (p *Module) InstallInData() bool {
return true
}
func (p *Module) ConvertWithBp2build(ctx android.TopDownMutatorContext) {
if p.isLibrary() {
pythonLibBp2Build(ctx, p)
} else if p.isBinary() {
pythonBinaryBp2Build(ctx, p)
}
}
var Bool = proptools.Bool
var BoolDefault = proptools.BoolDefault
var String = proptools.String