Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 250 insertions, 0 deletions

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+.ds Rv 5.10.1
+.ds Dt 2022-02-03
+.ds i \&\s-1ISO\s0
+.ds r \&\s-1RCS\s0
+.ds u \&\s-1UTC\s0
+.ds o \*r file
+.if n .ds - \%--
+.if t .ds - \(em
+.TH RCSMERGE 1 "\*(Dt" "GNU RCS \*(Rv"
+.SH NAME
+rcsmerge \- merge RCS revisions
+.SH SYNOPSIS
+.B rcsmerge
+.RI [ options ] " file"
+.SH DESCRIPTION
+.B rcsmerge
+incorporates the changes between two revisions
+of an \*o into the corresponding working file.
+.PP
+Filenames matching an \*r suffix denote \*os;
+all others denote working files.
+Names are paired as explained in
+.BR ci (1).
+.PP
+At least one revision must be specified with one of the options
+described below, usually
+.BR \-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.
+.PP
+.B rcsmerge
+prints a warning if there are overlaps, and delimits
+the overlapping regions as explained in
+.BR merge (1).
+The command is useful for incorporating changes into a checked-out revision.
+.SH OPTIONS
+.TP
+.B \-A
+Output conflicts using the
+.B \-A
+style of
+.BR diff3 (1),
+if supported by
+.BR diff3 .
+This merges all changes leading from
+.I file2
+to
+.I file3
+into
+.IR file1 ,
+and generates the most verbose output.
+.TP
+\f3\-E\fP, \f3\-e\fP
+These options specify conflict styles that generate less information
+than
+.BR \-A .
+See
+.BR diff3 (1)
+for details.
+The default is
+.BR \-E .
+With
+.BR \-e ,
+.B rcsmerge
+does not warn about conflicts.
+.TP
+.BI \-k subst
+Use
+.I subst
+style keyword substitution.
+See
+.BR co (1)
+for details.
+For example,
+.B "\-kk\ \-r1.1\ \-r1.2"
+ignores differences in keyword values when merging the changes from
+.B 1.1
+to
+.BR 1.2 .
+It normally does not make sense to merge binary files as if they were text, so
+.B rcsmerge
+refuses to merge files if
+.B \-kb
+expansion is used.
+.TP
+.BR \-p [\f2rev\fP]
+Send the result to standard output instead of overwriting the working file.
+.TP
+.BR \-q [\f2rev\fP]
+Run quietly; do not print diagnostics.
+.TP
+.BR \-r [\f2rev\fP]
+Merge with respect to revision
+.IR rev .
+Here an empty
+.I rev
+stands for the latest revision on the default branch, normally the head.
+.TP
+.B \-T
+This option has no effect;
+it is present for compatibility with other \*r commands.
+.TP
+.BI \-V
+Print \*r's version number.
+.TP
+.BI \-V n
+Emulate \*r version
+.IR n .
+See
+.BR co (1)
+for details.
+.TP
+.BI \-x "suffixes"
+Use
+.I suffixes
+to characterize \*os.
+See
+.BR ci (1)
+for details.
+.TP
+.BI \-z zone
+Use
+.I zone
+as the time zone for keyword substitution.
+See
+.BR co (1)
+for details.
+.SH EXAMPLES
+Suppose you have released revision 2.8 of
+.BR f.c .
+Assume
+furthermore 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
+.LP
+.B "    rcsmerge  \-p  \-r2.8  \-r3.4  f.c  >f.merged.c"
+.PP
+Then examine
+.BR f.merged.c .
+Alternatively, if you want to save the updates to 2.8 in the \*o,
+check them in as revision 2.8.1.1 and execute
+.BR "co \-j":
+.LP
+.B "    ci  \-r2.8.1.1  f.c"
+.br
+.B "    co  \-r3.4  \-j2.8:2.8.1.1  f.c"
+.PP
+As another example, the following command undoes the changes
+between revision 2.4 and 2.8 in your currently checked out revision
+in
+.BR f.c .
+.LP
+.B "    rcsmerge  \-r2.8  \-r2.4  f.c"
+.PP
+Note the order of the arguments, and that
+.B f.c
+will be
+overwritten.
+.SH ENVIRONMENT
+.TP
+.B \s-1RCSINIT\s0
+Options prepended to the argument list, separated by spaces.
+A backslash escapes spaces within an option.
+The
+.B \s-1RCSINIT\s0
+options are prepended to the argument lists of most \*r commands.
+Useful
+.B \s-1RCSINIT\s0
+options include
+.BR \-q ,
+.BR \-V ,
+.BR \-x ,
+and
+.BR \-z .
+.TP
+.B \s-1RCS_MEM_LIMIT\s0
+Normally, for speed, commands either memory map or copy into memory
+the \*o if its size is less than the
+.IR memory-limit ,
+currently defaulting to ``unlimited''.
+Otherwise (or if the initially-tried speedy ways fail),
+the commands fall back to using
+standard i/o routines.
+You can adjust the memory limit by setting
+.B \s-1RCS_MEM_LIMIT\s0
+to a numeric value
+.IR lim
+(measured in kilobytes).
+An empty value is silently ignored.
+As a side effect, specifying
+.B \s-1RCS_MEM_LIMIT\s0
+inhibits fall-back to slower routines.
+.TP
+.B \s-1TMPDIR\s0
+Name of the temporary directory.
+If not set, the environment variables
+.B \s-1TMP\s0
+and
+.B \s-1TEMP\s0
+are inspected instead and the first value found is taken;
+if none of them are set,
+a host-dependent default is used, typically
+.BR /tmp .
+.SH DIAGNOSTICS
+Exit status is 0 for no overlaps, 1 for some overlaps, 2 for trouble.
+.ds EY 1990, 1991, 1992, 1993, 1994, 1995
+.SH IDENTIFICATION
+Author: Walter F. Tichy.
+.br
+Manual Page Revision: \*(Rv; Release Date: \*(Dt.
+.br
+Copyright \(co 2010-2022 Thien-Thi Nguyen.
+.br
+Copyright \(co \*(EY Paul Eggert.
+.br
+Copyright \(co 1982, 1988, 1989 Walter F. Tichy.
+.br
+.SH "SEE ALSO"
+.BR ci (1),
+.BR co (1),
+.BR ident (1),
+.BR merge (1),
+.BR rcs (1),
+.BR rcsdiff (1),
+.BR rlog (1),
+.BR rcsfile (5).
+.PP
+Walter F. Tichy,
+\*r\*-A System for Version Control,
+.I "Software\*-Practice & Experience"
+.BR 15 ,
+7 (July 1985), 637-654.
+.PP
+The full documentation for \*r is maintained as a Texinfo manual.
+If the
+.BR info (1)
+and \*r programs are properly installed at your site, the command
+.IP
+.B info rcs
+.PP
+should give you access to the complete manual.
+Additionally, the \*r homepage:
+.IP
+.B http://www.gnu.org/software/rcs/
+.PP
+has news and links to the latest release, development site, etc.