sshpeer: store subprocess so it cleans up correctly
When running 'hg pull --rebase', I was seeing this exception 100% of the
time as the python process was closing down:
Exception TypeError: TypeError("'NoneType' object is not callable",) in
<bound method Popen.__del__ of <subprocess.Popen object at 0x937c10>> ignored
By storing the subprocess on the sshpeer, the subprocess seems to clean up
correctly, and I no longer see the exception. I have no idea why this actually
works, but I get a 0% repro if I store the subprocess in self.subprocess,
and a 100% repro if I store None in self.subprocess.
Possibly related to issue 2240.
blackbox: fix exception when logging commands with format characters
When running commands like 'hg export -o mypatch-%N.patch', the blackbox
would throw an exception because it tried to format %N. This change
prevents it from trying to format the command string.
localrepo: always write the filtered phasecache when nodes are destroyed (
issue3827)
When the strip command is run, it calls repo.destroyed, which in turn checks if
we read _phasecache, and if we did calls filterunknown on it and flushes the
changes immediately. But in some cases, nothing causes _phasecache to be read,
so we miss out on this and the file remains the same on-disk.
Then a call to invalidate comes, which should refresh _phasecache if it
changed, but it didn't, so it keeps using the old one with the stripped
revision which causes an IndexError.
Test written by Yuya Nishihara.