MirOS Manual: rcsmerge(1)


RCSMERGE(1)         UNIX Programmer's Manual          RCSMERGE(1)

NAME

     rcsmerge - merge RCS revisions

SYNOPSIS

     rcsmerge [options] file

DESCRIPTION

     rcsmerge incorporates the changes between two revisions of
     an RCS file into the corresponding working file.

     Pathnames matching an RCS suffix denote RCS files; all oth-
     ers denote working files. Names are paired as explained in
     ci(1).

     At least one revision must be specified with one of the
     options described below, usually -r. At most two revisions
     may be specified. If only one revision is specified, the
     latest revision on the default branch (normally the highest
     branch on the trunk) is assumed for the second revision.
     Revisions may be specified numerically or symbolically.

     rcsmerge prints a warning if there are overlaps, and delim-
     its the overlapping regions as explained in merge(1). The
     command is useful for incorporating changes into a checked-
     out revision.

OPTIONS

     -A   Output conflicts using the -A style of diff3(1), if
          supported by diff3. This merges all changes leading
          from file2 to file3 into file1, and generates the most
          verbose output.

     -E, -e
          These options specify conflict styles that generate
          less information than -A. See diff3(1) for details. The
          default is -E. With -e, rcsmerge does not warn about
          conflicts.

     -ksubst
          Use subst style keyword substitution. See co(1) for
          details. For example, -kk -r1.1 -r1.2 ignores differ-
          ences in keyword values when merging the changes from
          1.1 to 1.2. It normally does not make sense to merge
          binary files as if they were text, so rcsmerge refuses
          to merge files if -kb expansion is used.

     -p[rev]
          Send the result to standard output instead of overwrit-
          ing the working file.

     -q[rev]
          Run quietly; do not print diagnostics.

GNU                        1995/06/01                           1

RCSMERGE(1)         UNIX Programmer's Manual          RCSMERGE(1)

     -r[rev]
          Merge with respect to revision rev. Here an empty rev
          stands for the latest revision on the default branch,
          normally the head.

     -T   This option has no effect; it is present for compati-
          bility with other RCS commands.

     -V   Print RCS's version number.

     -Vn  Emulate RCS version n. See co(1) for details.

     -xsuffixes
          Use suffixes to characterize RCS files. See ci(1) for
          details.

     -zzone
          Use zone as the time zone for keyword substitution. See
          co(1) for details.

EXAMPLES

     Suppose you have released revision 2.8 of f.c. Assume furth-
     ermore that after you complete an unreleased revision 3.4,
     you receive updates to release 2.8 from someone else. To
     combine the updates to 2.8 and your changes between 2.8 and
     3.4, put the updates to 2.8 into file f.c and execute

         rcsmerge  -p  -r2.8  -r3.4  f.c  >f.merged.c

     Then examine f.merged.c. Alternatively, if you want to save
     the updates to 2.8 in the RCS file, check them in as revi-
     sion 2.8.1.1 and execute co -j:

         ci  -r2.8.1.1  f.c
         co  -r3.4  -j2.8:2.8.1.1  f.c

     As another example, the following command undoes the changes
     between revision 2.4 and 2.8 in your currently checked out
     revision in f.c.

         rcsmerge  -r2.8  -r2.4  f.c

     Note the order of the arguments, and that f.c will be
     overwritten.

ENVIRONMENT

     RCSINIT
          options prepended to the argument list, separated by
          spaces. See ci(1) for details.

     RCSLOCALID
          Local keyword to substitute. See co(1) for details.

GNU                        1995/06/01                           2

RCSMERGE(1)         UNIX Programmer's Manual          RCSMERGE(1)

DIAGNOSTICS

     Exit status is 0 for no overlaps, 1 for some overlaps, 2 for
     trouble.

IDENTIFICATION

     Author: Walter F. Tichy.
     Manual Page Revision: 5.6; Release Date: 1995/06/01.
     Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
     Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995 Paul
     Eggert.

SEE ALSO

     ci(1), co(1), ident(1), merge(1), rcs(1), rcsdiff(1), rcsintro(1),
     rlog(1), rcsfile(5)
     Walter F. Tichy, RCS--A System for Version Control,
     Software--Practice & Experience 15, 7 (July 1985), 637-654.

GNU                        1995/06/01                           3

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