Skip to content

fix(install): follow Windows runfiles junctions when copying files #1076

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
JSGette wants to merge 2 commits into
base: main
Choose a base branch
from
+4 −0
Draft

fix(install): follow Windows runfiles junctions when copying files #1076

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
a092da6
fix(install): follow Windows runfiles junctions when copying files
JSGette Aug 13, 2026
2bd3f8c
Use os.path.realpath instead of platform-specific junction resolution
JSGette Aug 17, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions pkg/private/install.py.tpl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,10 @@ class NativeInstaller(object):

def _do_file_copy(self, src, dest):
logging.debug("COPY %s <- %s", dest, src)
# Windows --enable_runfiles uses directory junctions for every runfile.
# Junctions cannot point at files, so open() fails with Permission denied.
# Follow the reparse point to the real bazel-out file.
src = os.path.realpath(src)
# Copy to a temporary directory and then move it to the destination.
# This ensures code-signed executables on certain platforms
# behave correctly.
Expand Down