# Copyright (c) Meta Platforms, Inc. and affiliates.
#
# This source code is licensed under both the MIT license found in the
# LICENSE-MIT file in the root directory of this source tree and the Apache
# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
# of this source tree.
import os
def normalize_and_write_deps(deps, dst_path):
cwd = os.getcwd() + os.sep
cwd = cwd.replace("\\", "/")
normalized_deps = []
for dep in deps:
# The paths we get sometimes include "../" components, so get rid
# of those because we want ForwardRelativePath here.
dep = os.path.normpath(dep).replace("\\", "/")
if os.path.isabs(dep):
if dep.startswith(cwd):
# The dep file included a path inside the build root, but
# expressed an absolute path. In this case, rewrite it to
# be a relative path.
dep = dep[len(cwd) :]
else:
# The dep file included a path to something outside the
# build root. That's bad (actions shouldn't depend on
# anything outside the build root), but that dependency is
# therefore not tracked by Buck2 (which can only see things
# in the build root), so it cannot be represented as a
# dependency and therefore we don't include it (event if we
# could include it, this could never cause a miss).
continue
normalized_deps.append(dep)
with open(dst_path, "w") as f:
for dep in normalized_deps:
f.write(dep)
f.write("\n")