progress: extract stubs to restart ferr.flush() and .write() on EINTR

filemerge: optionally strip quotes from merge marker template (BC) For consistency with the other template options. Quotes are necessary if you want to preserve leading/trailing whitespace, which would be stripped by config parser.

commit: optionally strip quotes from commit template (BC) For consistency with the other template options.

graphlog: optionally strip quotes from graphnode template (BC) For consistency with the other template options.

dispatch: ignore further SIGPIPE while handling KeyboardInterrupt I got the following error by running "hg log" and quitting the pager immediately. Any output here may trigger another SIGPIPE, so only thing we can do is to swallow the exception and exit with an error status. Traceback (most recent call last): File "./hg", line 45, in <module> mercurial.dispatch.run() File "mercurial/dispatch.py", line 83, in run status = (dispatch(req) or 0) & 255 File "mercurial/dispatch.py", line 167, in dispatch req.ui.warn(_("interrupted!\n")) File "mercurial/ui.py", line 1224, in warn self.write_err(*msg, **opts) File "mercurial/ui.py", line 790, in write_err self._write_err(*msgs, **opts) File "mercurial/ui.py", line 798, in _write_err self.ferr.write(a) File "mercurial/ui.py", line 129, in _catchterm raise error.SignalInterrupt mercurial.error.SignalInterrupt Perhaps this wasn't visible before de5c9d0e02ea because the original stderr handle was restored very late.

worker: print traceback for uncaught exception unconditionally This is what a Python interpreter would do if there were no os._exit().

worker: propagate exit code to main process Follows up 86cd09bc13ba.

dispatch: print traceback in scmutil.callcatch() if --traceback specified Otherwise, traceback wouldn't be printed for a known exception occurred in worker processes.

dispatch: mark callcatch() as a private function

templatefilters: fix crash by string formatting of '{x|splitlines}' Before, it crashed because mapping['templ'] was missing. As it didn't support the legacy list template from the beginning, we can simply use hybridlist().