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"""Repository rule for Android SDK and NDK autoconfiguration.
`android_configure` depends on the following environment variables:
* `ANDROID_NDK_HOME`: Location of Android NDK root.
* `ANDROID_SDK_HOME`: Location of Android SDK root.
* `ANDROID_SDK_API_LEVEL`: Desired Android SDK API version.
* `ANDROID_NDK_API_LEVEL`: Desired Android NDK API version.
* `ANDROID_BUILD_TOOLS_VERSION`: Desired Android build tools version.
"""
# TODO(mikecase): Move logic for getting default values for the env variables
# from configure.py script into this rule.
_ANDROID_NDK_HOME = "ANDROID_NDK_HOME"
_ANDROID_SDK_HOME = "ANDROID_SDK_HOME"
_ANDROID_NDK_API_VERSION = "ANDROID_NDK_API_LEVEL"
_ANDROID_SDK_API_VERSION = "ANDROID_SDK_API_LEVEL"
_ANDROID_BUILD_TOOLS_VERSION = "ANDROID_BUILD_TOOLS_VERSION"
_ANDROID_SDK_REPO_TEMPLATE = """
native.android_sdk_repository(
name="androidsdk",
path="%s",
api_level=%s,
build_tools_version="%s",
)
"""
_ANDROID_NDK_REPO_TEMPLATE = """
native.android_ndk_repository(
name="androidndk",
path="%s",
api_level=%s,
)
"""
def _android_autoconf_impl(repository_ctx):
"""Implementation of the android_autoconf repository rule."""
sdk_home = repository_ctx.os.environ.get(_ANDROID_SDK_HOME)
sdk_api_level = repository_ctx.os.environ.get(_ANDROID_SDK_API_VERSION)
build_tools_version = repository_ctx.os.environ.get(
_ANDROID_BUILD_TOOLS_VERSION,
)
ndk_home = repository_ctx.os.environ.get(_ANDROID_NDK_HOME)
ndk_api_level = repository_ctx.os.environ.get(_ANDROID_NDK_API_VERSION)
sdk_rule = ""
if all([sdk_home, sdk_api_level, build_tools_version]):
sdk_rule = _ANDROID_SDK_REPO_TEMPLATE % (
sdk_home,
sdk_api_level,
build_tools_version,
)
ndk_rule = ""
if all([ndk_home, ndk_api_level]):
ndk_rule = _ANDROID_NDK_REPO_TEMPLATE % (ndk_home, ndk_api_level)
if ndk_rule == "" and sdk_rule == "":
sdk_rule = "pass"
repository_ctx.template(
"BUILD",
Label("//third_party/android:android_configure.BUILD.tpl"),
)
repository_ctx.template(
"android.bzl",
Label("//third_party/android:android.bzl.tpl"),
substitutions = {
"MAYBE_ANDROID_SDK_REPOSITORY": sdk_rule,
"MAYBE_ANDROID_NDK_REPOSITORY": ndk_rule,
},
)
android_configure = repository_rule(
implementation = _android_autoconf_impl,
environ = [
_ANDROID_SDK_API_VERSION,
_ANDROID_NDK_API_VERSION,
_ANDROID_BUILD_TOOLS_VERSION,
_ANDROID_NDK_HOME,
_ANDROID_SDK_HOME,
],
)
"""Writes Android SDK and NDK rules.
Add the following to your WORKSPACE FILE:
```python
android_configure(name = "local_config_android")
```
Args:
name: A unique name for this workspace rule.
"""
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