chg: send SIGPIPE to server immediately when pager exits (
issue5278)
If the user press 'q' to leave the 'less' pager, it is expected to end the
hg process immediately. We currently rely on SIGPIPE for this behavior. But
SIGPIPE won't arrive if we don't write anything (like doing heavy
computation, reading from network etc). If that happens, the user will feel
that the hg process just hangs.
The patch address the issue by adding a SIGCHLD signal handler and sends
SIGPIPE to the server as soon as the pager exits.
This is also an issue with hg's pager implementation.
chgserver: do not ignore SIGPIPE if pager is used
We rely on SIGPIPE to exit when the pager exits. And Python ignores SIGPIPE
by default. Explicitly set SIGPIPE handler to SIG_DFL (terminate) just like
pager.py.
debug: make debug{revlog,index,data} --dir not just a flag
The directory argument (for tree manifests) should belong to to the
--dir argument. I had mistakenly made --dir a flag. One effect of this
was that I had meant for "-m" to be optional, but instead it changed
the behavior of --dir, so with "hg debugdata -m --dir dir1 0", the -m
took over and the "dir1" got treated as a revision in the root
manifest log.
debugdata: disallow trailing option with -c/-m
Before this change, "hg debugdata -c 0 foo" was allowed.
revset: get rid of redundant error checking from match()
Actually there was no additional error checking. It should be caught by
"not all(specs)".