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1.TH RCSMERGE 1L "" "Purdue University"
2.SH NAME
3rcsmerge \- merge RCS revisions
4.SH SYNOPSIS
5\fBrcsmerge\fR \fB\-r\fIrev1\fR [ \fB\-r\fIrev2\fR ] [ \fB\-p\fR ] file
6.SH DESCRIPTION
7.I Rcsmerge
8incorporates the changes between \fIrev1\fR and \fIrev2\fR of an
9RCS file into the corresponding working file. If \fB\-p\fR is given, the result
10is printed on the standard output, otherwise the result overwrites the
11working file.
12.PP
13A file name ending in ',v' is an RCS file name, otherwise a
14working file name. \fIMerge\fR derives the working file name from the RCS
15file name and vice versa, as explained in
16.IR co (1L).
17A pair consisting
18of both an RCS and a working file name may also be specified.
19.PP
20\fIRev1\fR may not be omitted. If \fIrev2\fR is omitted, the latest
21revision on the default branch (normally the highest branch on the trunk)
22is assumed.
23Both \fIrev1\fR and \fIrev2\fR may be given numerically or symbolically.
24.PP
25\fIRcsmerge\fR prints a warning if there are overlaps, and delimits
26the overlapping regions as explained in \fIco \-j\fR.
27The command is useful for incorporating changes into a checked-out revision.
28.SH EXAMPLES
29Suppose you have released revision 2.8 of f.c. Assume
30furthermore that you just completed revision 3.4, when you receive
31updates to release 2.8 from someone else.
32To combine the updates to 2.8 and your changes between 2.8 and 3.4,
33put the updates to 2.8 into file f.c and execute
34.sp
35.B " rcsmerge \-p \-r2.8 \-r3.4 f.c >f.merged.c
36.sp
37Then examine f.merged.c.
38Alternatively, if you want to save the updates to 2.8 in the RCS file,
39check them in as revision 2.8.1.1 and execute \fIco \-j\fR:
40.sp
41.B " ci \-r2.8.1.1 f.c
42.br
43.B " co \-r3.4 \-j2.8:2.8.1.1 f.c
44.sp
45As another example, the following command undoes the changes
46between revision 2.4 and 2.8 in your currently checked out revision
47in f.c.
48.sp
49.B " rcsmerge \-r2.8 \-r2.4 f.c
50.sp
51Note the order of the arguments, and that f.c will be
52overwritten.
53.SH IDENTIFICATION
54.de VL
55\\$2
56..
57Author: Walter F. Tichy,
58Purdue University, West Lafayette, IN, 47907.
59.sp 0
60Revision Number:
61.VL $Revision: 1.2 $
62; Release Date:
63.VL $Date: 89/05/02 11:18:34 $
64\&.
65.sp 0
66Copyright \(co 1982, 1988, 1989 by Walter F. Tichy.
67.SH SEE ALSO
68ci(1L), co(1L), merge(1L), ident(1L), rcs(1L), rcsdiff(1L), rlog(1L), rcsfile(5L),
69.br
70Walter F. Tichy, "Design, Implementation, and Evaluation of a Revision Control
71System," in \fIProceedings of the 6th International Conference on Software
72Engineering\fR, IEEE, Tokyo, Sept. 1982.
73.SH BUGS
74\fIRcsmerge\fR does not work on
75files that contain lines with a single `.'.