| """Extension for configuring global settings of rules_python.""" |
| |
| load("@bazel_features//:features.bzl", "bazel_features") |
| load("//python/private:internal_config_repo.bzl", "internal_config_repo") |
| load("//python/private/pypi:deps.bzl", "pypi_deps") |
| |
| _add_transition_setting = tag_class( |
| doc = """ |
| Specify a build setting that terminal rules transition on by default. |
| |
| Terminal rules are rules such as py_binary, py_test, py_wheel, or similar |
| rules that represent some deployable unit. Settings added here can |
| then be used a keys with the {obj}`config_settings` attribute. |
| |
| :::{note} |
| This adds the label as a dependency of the Python rules. Take care to not refer |
| to repositories that are expensive to create or invalidate frequently. |
| ::: |
| """, |
| attrs = { |
| "setting": attr.label(doc = "The build setting to add."), |
| }, |
| ) |
| |
| def _config_impl(module_ctx): |
| transition_setting_generators = {} |
| transition_settings = [] |
| for mod in module_ctx.modules: |
| for tag in mod.tags.add_transition_setting: |
| setting = str(tag.setting) |
| if setting not in transition_setting_generators: |
| transition_setting_generators[setting] = [] |
| transition_settings.append(setting) |
| transition_setting_generators[setting].append(mod.name) |
| |
| internal_config_repo( |
| name = "rules_python_internal", |
| transition_setting_generators = transition_setting_generators, |
| transition_settings = transition_settings, |
| ) |
| |
| pypi_deps() |
| |
| if bazel_features.external_deps.extension_metadata_has_reproducible: |
| return module_ctx.extension_metadata(reproducible = True) |
| else: |
| return None |
| |
| config = module_extension( |
| doc = """Global settings for rules_python. |
| |
| :::{versionadded} 1.7.0 |
| ::: |
| """, |
| implementation = _config_impl, |
| tag_classes = { |
| "add_transition_setting": _add_transition_setting, |
| }, |
| ) |
