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# Copyright 2018 The Bazel Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Defines a repository rule that generates an archive consisting of the specified files to fetch"""
load("//:distdir_deps.bzl", "DEPS_BY_NAME")
load("//tools/build_defs/repo:http.bzl", "http_archive", "http_file", "http_jar")
_BUILD = """
load("@rules_pkg//pkg:tar.bzl", "pkg_tar")
pkg_tar(
name="archives",
srcs = {srcs},
package_dir = "{dirname}",
visibility = ["//visibility:public"],
)
"""
def _distdir_tar_impl(ctx):
for name in ctx.attr.archives:
ctx.download(ctx.attr.urls[name], name, ctx.attr.sha256[name], False)
ctx.file("WORKSPACE", "")
ctx.file(
"BUILD",
_BUILD.format(srcs = ctx.attr.archives, dirname = ctx.attr.dirname),
)
_distdir_tar_attrs = {
"archives": attr.string_list(),
"sha256": attr.string_dict(),
"urls": attr.string_list_dict(),
"dirname": attr.string(default = "distdir"),
}
_distdir_tar = repository_rule(
implementation = _distdir_tar_impl,
attrs = _distdir_tar_attrs,
)
def distdir_tar(name, archives, sha256, urls, dirname, dist_deps = None):
"""Creates a repository whose content is a set of tar files.
Args:
name: repo name.
archives: list of tar file names.
sha256: map of tar file names to SHAs.
urls: map of tar file names to URL lists.
dirname: output directory in repo.
dist_deps: map of repo names to dict of archive, sha256, and urls.
"""
if dist_deps:
for dep, info in dist_deps.items():
archive_file = info["archive"]
archives.append(archive_file)
sha256[archive_file] = info["sha256"]
urls[archive_file] = info["urls"]
_distdir_tar(
name = name,
archives = archives,
sha256 = sha256,
urls = urls,
dirname = dirname,
)
def dist_http_archive(name, **kwargs):
"""Wraps http_archive, providing attributes like sha and urls from the central list.
dist_http_archive wraps an http_archive invocation, but looks up relevant attributes
from distdir_deps.bzl so the user does not have to specify them.
Args:
name: repo name
**kwargs: see http_archive for allowed args.
"""
info = DEPS_BY_NAME[name]
if "patch_args" not in kwargs:
kwargs["patch_args"] = info.get("patch_args")
if "patches" not in kwargs:
kwargs["patches"] = info.get("patches")
if "strip_prefix" not in kwargs:
kwargs["strip_prefix"] = info.get("strip_prefix")
http_archive(
name = name,
sha256 = info["sha256"],
urls = info["urls"],
**kwargs
)
def dist_http_file(name, **kwargs):
"""Wraps http_file, providing attributes like sha and urls from the central list.
dist_http_file wraps an http_file invocation, but looks up relevant attributes
from distdir_deps.bzl so the user does not have to specify them.
Args:
name: repo name
**kwargs: see http_file for allowed args.
"""
info = DEPS_BY_NAME[name]
http_file(
name = name,
sha256 = info["sha256"],
urls = info["urls"],
**kwargs
)
def dist_http_jar(name, **kwargs):
"""Wraps http_jar, providing attributes like sha and urls from the central list.
dist_http_jar wraps an http_jar invocation, but looks up relevant attributes
from distdir_deps.bzl so the user does not have to specify them.
Args:
name: repo name
**kwargs: see http_jar for allowed args.
"""
info = DEPS_BY_NAME[name]
http_jar(
name = name,
sha256 = info["sha256"],
urls = info["urls"],
**kwargs
)