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def _impl(repository_ctx):
archive = repository_ctx.attr.name + ".tar"
reference = Label("@%s_unpatched//:README" % repository_ctx.attr.name)
dirname = repository_ctx.path(reference).dirname
repository_ctx.execute(["tar", "hcf", archive, "-C", dirname, "."])
repository_ctx.extract(archive)
for patch in repository_ctx.attr.patches:
repository_ctx.patch(repository_ctx.path(patch), repository_ctx.attr.patch_strip)
build_file = repository_ctx.path(repository_ctx.attr.build_file)
repository_ctx.execute(["cp", build_file, "BUILD.bazel"])
_patched_rule = repository_rule(
implementation = _impl,
attrs = {
"build_file": attr.label(),
"patch_strip": attr.int(),
"patches": attr.label_list(),
},
)
def new_patched_local_repository(name, path, **kwargs):
native.new_local_repository(
name = name + "_unpatched",
build_file_content = """
pkg_tar(name = "content", srcs = glob(["**"]))
""",
path = path,
)
_patched_rule(name = name, **kwargs)
def _new_empty_repository_impl(repo_ctx):
build_file = repo_ctx.attr.build_file
build_file_content = repo_ctx.attr.build_file_content
if not (bool(build_file) != bool(build_file_content)):
fail("Exactly one of 'build_file' or 'build_file_content' is required")
if build_file_content:
repo_ctx.file("BUILD", build_file_content)
elif build_file:
repo_ctx.template("BUILD", repo_ctx.attr.build_file, {})
new_empty_repository = repository_rule(
attrs = {
"build_file": attr.label(allow_files = True),
"build_file_content": attr.string(),
},
implementation = _new_empty_repository_impl,
)
"""Create an empty repository with the supplied BUILD file.
This is mostly useful to create wrappers for specific target that we want
to be used with the '@' syntax.
"""
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