| # Copyright 2023 The ChromiumOS Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| def _extract_tarball_impl(repo_ctx): |
| tar = repo_ctx.which("tar") |
| if not tar: |
| fail("tar was not found on the path") |
| out = repo_ctx.path("") |
| tarball = repo_ctx.path(repo_ctx.attr.tarball) |
| |
| args = [ |
| tar, |
| "-xf", |
| tarball, |
| "-C", |
| out, |
| ".", |
| ] |
| |
| # Use parallel decompression if available. |
| if tarball.basename.endswith(".gz") and repo_ctx.which("pigz"): |
| args.extend(["-I", "pigz"]) |
| |
| st = repo_ctx.execute(args) |
| if st.return_code: |
| cmdline = " ".join([str(arg) for arg in args]) |
| fail("Error running command '%s':\n%s%s" % (cmdline, st.stdout, st.stderr)) |
| |
| if repo_ctx.attr.build_file: |
| repo_ctx.symlink(repo_ctx.path(repo_ctx.attr.build_file), repo_ctx.path("BUILD.bazel")) |
| |
| extract_tarball = repository_rule( |
| implementation = _extract_tarball_impl, |
| attrs = dict( |
| tarball = attr.label(allow_single_file = True, mandatory = True), |
| build_file = attr.label(allow_single_file = True), |
| ), |
| ) |
