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# This file is licensed under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
"""Rules for running lit tests."""
load("@bazel_skylib//lib:paths.bzl", "paths")
def lit_test(
name,
srcs,
args = None,
data = None,
**kwargs):
"""Runs a single test file with LLVM's lit tool.
Args:
name: string. the name of the generated test target.
srcs: label list. The files on which to run lit.
args: string list. Additional arguments to pass to lit.
Note that `-v` and the 'srcs' paths are added automatically.
data: label list. Additional data dependencies of the test.
Note that 'srcs' targets are added automatically.
**kwargs: additional keyword arguments.
See https://llvm.org/docs/CommandGuide/lit.html for details on lit.
"""
args = args or []
data = data or []
native.py_test(
name = name,
srcs = [Label("//llvm:lit")],
main = Label("//llvm:utils/lit/lit.py"),
args = args + ["-v"] + ["$(execpath %s)" % src for src in srcs],
data = data + srcs,
legacy_create_init = False,
**kwargs
)
def package_path(label):
"""Returns the path to the package of 'label'.
Args:
label: label. The label to return the package path of.
For example, package_path("@foo//bar:BUILD") returns 'external/foo/bar'.
"""
return paths.join(Label(label).workspace_root, Label(label).package)
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