sslutil: try harder to avoid getpeercert problems We wrap both calls to getpeercert in a try/except to make sure we catch its bogus AttributeError.

copies._forwardcopies: use set operations to find missing files This is a performance win for a number of reasons: - We don't iterate over contexts, which avoids a completely unnecessary sorted call + the O(number of files) abstraction cost of doing that. - We don't check membership in a context, which avoids another O(number of files) abstraction cost. - We iterate over the manifests in C instead of Python. For a large repo with 170,000 files, this improves perfpathcopies from 0.34 seconds to 0.07. Anything that uses pathcopies, such as rebase or diff --git between two revisions, benefits.

perf: add a command to test copies.pathcopies perf An upcoming patch will improve the performance of this function, and this command will be used to demonstrate that improvement.

merge with stable

Added signature for changeset 8a7bd2dccd44

Added tag 2.5.4 for changeset 8a7bd2dccd44