1*bcb5dc79SHONG Yifan# Copyright 2024 The Bazel Authors. All rights reserved. 2*bcb5dc79SHONG Yifan# 3*bcb5dc79SHONG Yifan# Licensed under the Apache License, Version 2.0 (the "License"); 4*bcb5dc79SHONG Yifan# you may not use this file except in compliance with the License. 5*bcb5dc79SHONG Yifan# You may obtain a copy of the License at 6*bcb5dc79SHONG Yifan# 7*bcb5dc79SHONG Yifan# http://www.apache.org/licenses/LICENSE-2.0 8*bcb5dc79SHONG Yifan# 9*bcb5dc79SHONG Yifan# Unless required by applicable law or agreed to in writing, software 10*bcb5dc79SHONG Yifan# distributed under the License is distributed on an "AS IS" BASIS, 11*bcb5dc79SHONG Yifan# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12*bcb5dc79SHONG Yifan# See the License for the specific language governing permissions and 13*bcb5dc79SHONG Yifan# limitations under the License. 14*bcb5dc79SHONG Yifan 15*bcb5dc79SHONG Yifan"""Skylib module containing rules to create metadata about subdirectories.""" 16*bcb5dc79SHONG Yifan 17*bcb5dc79SHONG Yifanload(":providers.bzl", "DirectoryInfo") 18*bcb5dc79SHONG Yifan 19*bcb5dc79SHONG Yifandef _subdirectory_impl(ctx): 20*bcb5dc79SHONG Yifan dir = ctx.attr.parent[DirectoryInfo].get_subdirectory(ctx.attr.path) 21*bcb5dc79SHONG Yifan return [ 22*bcb5dc79SHONG Yifan dir, 23*bcb5dc79SHONG Yifan DefaultInfo(files = dir.transitive_files), 24*bcb5dc79SHONG Yifan ] 25*bcb5dc79SHONG Yifan 26*bcb5dc79SHONG Yifansubdirectory = rule( 27*bcb5dc79SHONG Yifan implementation = _subdirectory_impl, 28*bcb5dc79SHONG Yifan attrs = { 29*bcb5dc79SHONG Yifan "parent": attr.label( 30*bcb5dc79SHONG Yifan providers = [DirectoryInfo], 31*bcb5dc79SHONG Yifan mandatory = True, 32*bcb5dc79SHONG Yifan doc = "A label corresponding to the parent directory (or subdirectory).", 33*bcb5dc79SHONG Yifan ), 34*bcb5dc79SHONG Yifan "path": attr.string( 35*bcb5dc79SHONG Yifan mandatory = True, 36*bcb5dc79SHONG Yifan doc = "A path within the parent directory (eg. \"path/to/subdir\")", 37*bcb5dc79SHONG Yifan ), 38*bcb5dc79SHONG Yifan }, 39*bcb5dc79SHONG Yifan provides = [DirectoryInfo], 40*bcb5dc79SHONG Yifan) 41