contrib/chg/chg.1

copyfiles: deal with existing file when hardlinking

If the hardlinking fails, we fallback to `shutil.copy`, but do not consider
future hardlinking doomed.

This is a slight improvement from the current situation, we still avoid
hardliking in a case we might be able to do it. However this does not have an
impact of the rest of the operation.

(This is an opportunity improvement while looking at something next to that.)

Differential Revision: https://phab.mercurial-scm.org/D10841

.\"                                      Hey, EMACS: -*- nroff -*-
.\" First parameter, NAME, should be all caps
.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
.\" other parameters are allowed: see man(7), man(1)
.TH CHG 1 "March 3, 2013"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
.\" .nh        disable hyphenation
.\" .hy        enable hyphenation
.\" .ad l      left justify
.\" .ad b      justify to both left and right margins
.\" .nf        disable filling
.\" .fi        enable filling
.\" .br        insert line break
.\" .sp <n>    insert n+1 empty lines
.\" for manpage-specific macros, see man(7)
.SH NAME
chg \- a fast client for Mercurial command server
.SH SYNOPSIS
.B chg
.IR command " [" options "] [" arguments "]..."
.br
.SH DESCRIPTION
The
.B chg
command is the wrapper for
.B hg
command.
It uses the Mercurial command server to reduce start-up overhead.
.SH OPTIONS
This program accepts the same command line syntax as the
.B hg
command. Additionally it accepts the following options.
.TP
.B \-\-kill\-chg\-daemon
Terminate the background command servers.
.SH SEE ALSO
.BR hg (1)
.SH AUTHOR
Written by Yuya Nishihara <[e-mail]>.