# Copyright (c) FIRST and other WPILib contributors.
# Open Source Software; you can modify and/or share it under the terms of
# the WPILib BSD license file in the root directory of this project.

"""Bazel rule definition for publishing maven artifacts."""

def _publishing_repo_impl(repository_ctx):
    """Implementation of the publishing_repo rule."""
    classifier_filter = repository_ctx.os.environ.get("WPI_PUBLISH_CLASSIFIER_FILTER", "")

    content = """# Generated by publishing_repo rule. DO NOT EDIT.

CLASSIFIER_FILTER = "{classifier_filter}"
""".format(
        classifier_filter = classifier_filter,
    )
    repository_ctx.file("publishing_config.bzl", content)
    repository_ctx.file("BUILD.bazel", content = "# Generated file")

publishing_repo = repository_rule(
    implementation = _publishing_repo_impl,
    environ = ["WPI_PUBLISH_CLASSIFIER_FILTER"],
    doc = "Repository rule to determine host OS and classifier filter for publishing. " +
          "This rule must be instantiated in the WORKSPACE file with the name " +
          "'com_wpilib_allwpilib_publishing_config'.",
)