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Fix bug in _internal_copy_files where the rule would fail in downstream repositories. 

Taken from https://github.com/protocolbuffers/upb/blob/main/bazel/protobuf.patch#L42

Fixes https://github.com/protocolbuffers/protobuf/issues/12620.

PiperOrigin-RevId: 528586464
pull/12632/head
Deanna Garcia 2023-05-01 15:11:07 -07:00
parent ad2dd26ffc
commit b36c39236e
1 changed files with 13 additions and 4 deletions
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17
python/internal.bzl
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@ -1,4 +1,12 @@
# Internal helpers for building the Python protobuf runtime.
"""
Internal helpers for building the Python protobuf runtime.
"""
def _remove_cross_repo_path(path):
components = path.split("/")
if components[0] == "..":
return "/".join(components[2:])
return path
def _internal_copy_files_impl(ctx):
strip_prefix = ctx.attr.strip_prefix
@ -7,10 +15,11 @@ def _internal_copy_files_impl(ctx):
src_dests = []
for src in ctx.files.srcs:
if src.short_path[:len(strip_prefix)] != strip_prefix:
short_path = _remove_cross_repo_path(src.short_path)
if short_path[:len(strip_prefix)] != strip_prefix:
fail("Source does not start with %s: %s" %
(strip_prefix, src.short_path))
dest = ctx.actions.declare_file(src.short_path[len(strip_prefix):])
(strip_prefix, short_path))
dest = ctx.actions.declare_file(short_path[len(strip_prefix):])
src_dests.append([src, dest])
if ctx.attr.is_windows: