zeroconf: do not crash if socket being read is closed by another thread In zeroconf/__init__.py, there is: server = Zeroconf.Zeroconf(ip) l = listener() Zeroconf.ServiceBrowser(server, "_hg._tcp.local.", l) time.sleep(1) server.close() `server.close()` closes the underlying socket while the `ServiceBrowser` may still have a background thread reading the socket. There could be a race condition where the reading thread reads the closed socket, resulting in EBADF crash. This patch catches the exception. This makes test-paths.t pass with chg. Differential Revision: https://phab.mercurial-scm.org/D919

test-revlog-mmapindex: make it compatible with chg The test misses an explicit flush(). Differential Revision: https://phab.mercurial-scm.org/D918

test-profile: gate chg-incompatible part with '#if chg' chg has a different extension loading logic, which affects the profiler extension test case. Gate the block with '#if chg' so the test passes with chg. Differential Revision: https://phab.mercurial-scm.org/D916

test-logtoprocess: make it compatible with chg chg runs more commands and outputs more lines. This patch matches them. Differential Revision: https://phab.mercurial-scm.org/D914

test-globalopts: make the test compatible with chg The test fails when run with the '--chg' option. Therefore, this commit modifies the test to make it compatible with chg. Test Plan: Ran 'test-globalopts.t' with and without the '--chg' option. Differential Revision: https://phab.mercurial-scm.org/D913

test-pager: make it compatible with chg chg's runpager implementation is different. It behaves differently for the "shell=False, command not found" case. Differential Revision: https://phab.mercurial-scm.org/D911

changelog: use a Factory for default value for files The default value is compiled into the generated type. This means that default values are shared between instances. For immutable types like bool, str, int, and tuple, this is fine. But for mutable types like list and dict, we need to use attr.Factory() to instantiate a new instance of the default for each object. Differential Revision: https://phab.mercurial-scm.org/D901

cext: wrap before brace for functions This is our prevailing style. Differential Revision: https://phab.mercurial-scm.org/D910

cext: put case statements on separate line This seems to be the prevailing style, even though it is a bit more verbose for very simple switch statements. Differential Revision: https://phab.mercurial-scm.org/D909

cext: reorder #include We mostly abide by this style. In one case, a blank line was inserted to prevent a local `#include "file"` from coming before a `#include <file>`. Differential Revision: https://phab.mercurial-scm.org/D908