.\"	$OpenBSD: rcsmerge.1,v 1.13 2006/05/15 07:43:03 xsa Exp $
.\"
.\" Copyright (c) 2005 Xavier Santolaria <xsa@openbsd.org>
.\" All rights reserved.
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.Dd October 12, 2005
.Dt RCSMERGE 1
.Os
.Sh NAME
.Nm rcsmerge
.Nd merge RCS revisions
.Sh SYNOPSIS
.Nm
.Op Fl EV
.Op Fl k Ns Ar mode
.Op Fl p Ns Op Ar rev
.Op Fl q Ns Op Ar rev
.Op Fl x Ns Ar suffixes
.Op Fl z Ns Ar tz
.Fl r Ns Ar rev
.Ar
.Sh DESCRIPTION
The
.Nm
program merges changes between two revisions of an RCS file into
the corresponding working file.
.Pp
.Nm
also supports
keyword substitution \(en
see the
.Xr rcs 1
man page for more information.
.Pp
The following options are supported:
.Bl -tag -width Ds
.It Fl E
Default merge:
see
.Xr diff3 1
for details.
.It Fl k Ns Ar mode
Specify the keyword substitution mode.
.It Fl p Ns Op Ar rev
Print result to standard output.
.It Fl q Ns Op Ar rev
Be quiet about reporting.
.It Fl r Ns Ar rev
Merge with respect to revision
.Ar rev .
This option should be specified twice to merge changes
between two specific revisions.
If only one revision is specified,
merging is done between that revision and
the latest revision of the default branch.
.It Fl V
Print RCS's version number.
.It Fl x Ns Ar suffixes
Specify the suffixes for RCS files.
Suffixes should be separated by the
.Sq /
character.
.It Fl z Ns Ar tz
Specify the time zone for keyword substitution.
.El
.Sh ENVIRONMENT
.Bl -tag -width RCSINIT
.It Ev RCSINIT
If set, this variable should contain a list of space-delimited options that
are prepended to the argument list.
.El
.Sh EXAMPLES
Merge differences between revision 1.4 and 1.8 of
.Pa foo.c
and print the result to standard output:
.Pp
.Dl $ rcsmerge -p -r1.4 -r1.8 foo.c
.Pp
Undo changes between revision 2.4 and 2.8 of
.Pa foo.c ,
overwriting the working copy:
.Pp
.Dl $ rcsmerge -r2.8 -r2.4 foo.c
.Sh DIAGNOSTICS
The
.Nm
utility exits with one of the following values:
.Pp
.Bl -tag -width Ds -compact -offset indent
.It 0
No overlaps.
.It 1
Overlaps were found.
.It 2
An error occurred.
.El
.Sh SEE ALSO
.Xr ci 1 ,
.Xr co 1 ,
.Xr ident 1 ,
.Xr merge 1 ,
.Xr rcs 1 ,
.Xr rcsclean 1 ,
.Xr rcsdiff 1 ,
.Xr rlog 1
.Sh STANDARDS
The flags
.Op Fl AeT
have no effect and are provided
for compatibility only.