gax-java/repository_rules.bzl

# Copyright 2019 Google LLC
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def _com_google_api_gax_java_properties_impl(ctx):
    props_path = ctx.path(ctx.attr.file)
    result = ctx.execute(["cat", props_path])

    if result.return_code != 0:
        fail("Could not load dependencies from properties file, error_code %s" + str(result.return_code))

    props = result.stdout.splitlines()
    props_as_map = {}

    for prop in props:
        p = prop.strip()
        if len(p) <= 0 or p.startswith("#"):
            continue
        key_value = p.split("=", 1)
        props_as_map[key_value[0]] = key_value[1]

    props_name = ctx.attr.file.name
    dependencies_bzl = """
# DO NOT EDIT. This file was generated from {properties_file}.
PROPERTIES = {props_as_map}
     """.format(
        properties_file = props_name,
        props_as_map = str(props_as_map),
     )
    ctx.file("BUILD.bazel", "")
    ctx.file("%s.bzl" % props_name, dependencies_bzl)


com_google_api_gax_java_properties = repository_rule(
    implementation = _com_google_api_gax_java_properties_impl,
    attrs = {
        "file": attr.label(),
    },
    local = True,
)