63 lines
1.8 KiB
Python
63 lines
1.8 KiB
Python
"""Repository rule for Android SDK and NDK autoconfiguration.
|
|
|
|
This rule is a no-op unless the required android environment variables are set.
|
|
"""
|
|
|
|
# Based on https://github.com/tensorflow/tensorflow/tree/34c03ed67692eb76cb3399cebca50ea8bcde064c/third_party/android
|
|
# Workaround for https://github.com/bazelbuild/bazel/issues/14260
|
|
|
|
_ANDROID_NDK_HOME = "ANDROID_NDK_HOME"
|
|
_ANDROID_SDK_HOME = "ANDROID_HOME"
|
|
|
|
def _escape_for_windows(path):
|
|
"""Properly escape backslashes for Windows.
|
|
|
|
Ideally, we would do this conditionally, but there is seemingly no way to
|
|
determine whether or not this is being called from Windows.
|
|
"""
|
|
return path.replace("\\", "\\\\")
|
|
|
|
def _android_autoconf_impl(repository_ctx):
|
|
sdk_home = repository_ctx.os.environ.get(_ANDROID_SDK_HOME)
|
|
ndk_home = repository_ctx.os.environ.get(_ANDROID_NDK_HOME)
|
|
|
|
# version 31.0.0 won't work https://stackoverflow.com/a/68036845
|
|
sdk_rule = ""
|
|
if sdk_home:
|
|
sdk_rule = """
|
|
native.android_sdk_repository(
|
|
name="androidsdk",
|
|
path="{}",
|
|
build_tools_version="30.0.3",
|
|
)
|
|
""".format(_escape_for_windows(sdk_home))
|
|
|
|
# Note that Bazel does not support NDK 22 yet, and Bazel 3.7.1 only
|
|
# supports up to API level 29 for NDK 21
|
|
ndk_rule = ""
|
|
if ndk_home:
|
|
ndk_rule = """
|
|
native.android_ndk_repository(
|
|
name="androidndk",
|
|
path="{}",
|
|
)
|
|
""".format(_escape_for_windows(ndk_home))
|
|
|
|
if ndk_rule == "" and sdk_rule == "":
|
|
sdk_rule = "pass"
|
|
|
|
repository_ctx.file("BUILD.bazel", "")
|
|
repository_ctx.file("android_configure.bzl", """
|
|
def android_workspace():
|
|
{}
|
|
{}
|
|
""".format(sdk_rule, ndk_rule))
|
|
|
|
android_configure = repository_rule(
|
|
implementation = _android_autoconf_impl,
|
|
environ = [
|
|
_ANDROID_NDK_HOME,
|
|
_ANDROID_SDK_HOME,
|
|
],
|
|
)
|