Mercurial > hg
view doc/hgmerge.1.txt @ 535:fba26990604a
Deal with failed clone/transaction interaction
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Deal with failed clone/transaction interaction
> What is happening is that something in the transaction machinery is
> causing the directory to be completely recreated.
The transaction gets rolled back by its destructor. This is critical
so it happens whenever an exception occurs that unwinds the stack.
Unfortunately, what's happening with clone is we're trying to delete
the directory during exception propagation. And a reference to the
transaction is held in the exception backtrace stack frames so it
still exists until the exception is completely resolved.
So there's no way to do the directory delete inside the exception
handling cleanly.
But we can handle it similarly to the transaction itself: use an
object with a destructor.
manifest hash: fc38550a20d64d08333f256bbedc312493c1390b
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (GNU/Linux)
iD8DBQFCxDT2ywK+sNU5EO8RAjikAJ0Tej56rAutxQDfYzVbFGtT1sEC5ACgmVds
/fwdQyHn+FwshugqXLemUaM=
=3f78
-----END PGP SIGNATURE-----
| author | mpm@selenic.com |
|---|---|
| date | Thu, 30 Jun 2005 10:07:50 -0800 |
| parents | c084cfbb2389 |
| children | 3ab6e55ee361 |
line wrap: on
line source
HGMERGE(1) ========== Matt Mackall <mpm@selenic.com> v0.1, 27 May 2005 NAME ---- hgmerge - default wrapper to merge files in Mercurial SCM system SYNOPSIS -------- 'hgmerge' local ancestor remote DESCRIPTION ----------- The hgmerge(1) command provides a graphical interface to merge files in the Mercurial system. It is a simple wrapper around kdiff3, merge(1) and tkdiff(1), or simply diff(1) and patch(1) depending on what is present on the system. hgmerge(1) is used by the Mercurial SCM if the environment variable HGMERGE is not set. AUTHOR ------ Written by Vincent Danjean <Vincent.Danjean@free.fr> SEE ALSO -------- hg(1) - the command line interface to Mercurial SCM COPYING ------- Copyright (C) 2005 Matt Mackall. Free use of this software is granted under the terms of the GNU General Public License (GPL).