bp2build: add python_binary_host converter.
This CL adds a simple python_binary_host to native py_binary converter
for standalone modules that don't depend on libs. It also adds support
for the conditional py2/py3 build target based on the version prop.
Test: milestone-2/demo.sh full
Test: bazel query 'kind("py_binary rule", //bionic/...)'
Test: bazel run //bionic/libc/tools:genfunctosyscallnrs
Test: bazel run //bionic/libc/tools:genseccomp
Test: go tests
Fixes: 182236395
Change-Id: Ibe5ec6cd0dc12a61b3a449a8c723d80b891fae42
diff --git a/bp2build/python_binary_conversion_test.go b/bp2build/python_binary_conversion_test.go
new file mode 100644
index 0000000..7600e36
--- /dev/null
+++ b/bp2build/python_binary_conversion_test.go
@@ -0,0 +1,170 @@
+package bp2build
+
+import (
+ "android/soong/android"
+ "android/soong/python"
+ "fmt"
+ "strings"
+ "testing"
+)
+
+func TestPythonBinaryHost(t *testing.T) {
+ testCases := []struct {
+ description string
+ moduleTypeUnderTest string
+ moduleTypeUnderTestFactory android.ModuleFactory
+ moduleTypeUnderTestBp2BuildMutator func(android.TopDownMutatorContext)
+ blueprint string
+ expectedBazelTargets []string
+ filesystem map[string]string
+ }{
+ {
+ description: "simple python_binary_host converts to a native py_binary",
+ moduleTypeUnderTest: "python_binary_host",
+ moduleTypeUnderTestFactory: python.PythonBinaryHostFactory,
+ moduleTypeUnderTestBp2BuildMutator: python.PythonBinaryBp2Build,
+ filesystem: map[string]string{
+ "a.py": "",
+ "b/c.py": "",
+ "b/d.py": "",
+ "b/e.py": "",
+ "files/data.txt": "",
+ },
+ blueprint: `python_binary_host {
+ name: "foo",
+ main: "a.py",
+ srcs: [
+ "**/*.py"
+ ],
+ exclude_srcs: [
+ "b/e.py"
+ ],
+ data: [
+ "files/data.txt",
+ ],
+
+ bazel_module: { bp2build_available: true },
+}
+`,
+ expectedBazelTargets: []string{`py_binary(
+ name = "foo",
+ data = [
+ "files/data.txt",
+ ],
+ main = "a.py",
+ srcs = [
+ "a.py",
+ "b/c.py",
+ "b/d.py",
+ ],
+)`,
+ },
+ },
+ {
+ description: "py2 python_binary_host",
+ moduleTypeUnderTest: "python_binary_host",
+ moduleTypeUnderTestFactory: python.PythonBinaryHostFactory,
+ moduleTypeUnderTestBp2BuildMutator: python.PythonBinaryBp2Build,
+ blueprint: `python_binary_host {
+ name: "foo",
+ srcs: ["a.py"],
+ version: {
+ py2: {
+ enabled: true,
+ },
+ py3: {
+ enabled: false,
+ },
+ },
+
+ bazel_module: { bp2build_available: true },
+}
+`,
+ expectedBazelTargets: []string{`py_binary(
+ name = "foo",
+ python_version = "PY2",
+ srcs = [
+ "a.py",
+ ],
+)`,
+ },
+ },
+ {
+ description: "py3 python_binary_host",
+ moduleTypeUnderTest: "python_binary_host",
+ moduleTypeUnderTestFactory: python.PythonBinaryHostFactory,
+ moduleTypeUnderTestBp2BuildMutator: python.PythonBinaryBp2Build,
+ blueprint: `python_binary_host {
+ name: "foo",
+ srcs: ["a.py"],
+ version: {
+ py2: {
+ enabled: false,
+ },
+ py3: {
+ enabled: true,
+ },
+ },
+
+ bazel_module: { bp2build_available: true },
+}
+`,
+ expectedBazelTargets: []string{
+ // python_version is PY3 by default.
+ `py_binary(
+ name = "foo",
+ srcs = [
+ "a.py",
+ ],
+)`,
+ },
+ },
+ }
+
+ dir := "."
+ for _, testCase := range testCases {
+ filesystem := make(map[string][]byte)
+ toParse := []string{
+ "Android.bp",
+ }
+ for f, content := range testCase.filesystem {
+ if strings.HasSuffix(f, "Android.bp") {
+ toParse = append(toParse, f)
+ }
+ filesystem[f] = []byte(content)
+ }
+ config := android.TestConfig(buildDir, nil, testCase.blueprint, filesystem)
+ ctx := android.NewTestContext(config)
+
+ ctx.RegisterModuleType(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestFactory)
+ ctx.RegisterBp2BuildMutator(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestBp2BuildMutator)
+ ctx.RegisterForBazelConversion()
+
+ _, errs := ctx.ParseFileList(dir, toParse)
+ if Errored(t, testCase.description, errs) {
+ continue
+ }
+ _, errs = ctx.ResolveDependencies(config)
+ if Errored(t, testCase.description, errs) {
+ continue
+ }
+
+ codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
+ bazelTargets := generateBazelTargetsForDir(codegenCtx, dir)
+ if actualCount, expectedCount := len(bazelTargets), len(testCase.expectedBazelTargets); actualCount != expectedCount {
+ fmt.Println(bazelTargets)
+ t.Errorf("%s: Expected %d bazel target, got %d", testCase.description, expectedCount, actualCount)
+ } else {
+ for i, target := range bazelTargets {
+ if w, g := testCase.expectedBazelTargets[i], target.content; w != g {
+ t.Errorf(
+ "%s: Expected generated Bazel target to be '%s', got '%s'",
+ testCase.description,
+ w,
+ g,
+ )
+ }
+ }
+ }
+ }
+}