.TH CI 1 6/29/83 "Purdue University"
.SH NAME
ci \- check in RCS revisions
.SH SYNOPSIS
.B ci
[ options ]
file ...
.SH DESCRIPTION
.I Ci
stores new revisions into RCS files.
Each file name ending in `,v' is taken to be an RCS file, all others
are assumed to be working files containing new revisions.
\fICi\fR deposits the contents of each working file
into the corresponding RCS file.
.PP
Pairs of RCS files and working files may be specified in 3 ways (see also the
example section of \fIco\fR (1)).
.PP
1) Both the RCS file and the working file are given. The RCS file name is of
the form \fIpath1/workfile\fR,v
and the working file name is of the form
\fIpath2/workfile\fR, where 
\fIpath1/\fR and
\fIpath2/\fR are (possibly different or empty) paths and
\fIworkfile\fR is a file name.
.PP
2) Only the RCS file is given. 
Then the working file is assumed to be in the current
directory and its name is derived from the name of the RCS file
by removing \fIpath1/\fR and the suffix `,v'.
.PP
3) Only the working file is given. 
Then the name of the RCS file is derived from the name of the working file
by removing \fIpath2/\fR
and appending the suffix `,v'.
.PP
If the RCS file is omitted or specified without a path, then \fIci\fR
looks for the RCS file first in the directory ./RCS and then in the current
directory. 
.PP
For \fIci\fR to work, the caller's login must be on the access list,
except if the access list is empty or the caller is the superuser or the
owner of the file.
To append a new revision to an existing branch, the tip revision on
that branch must be locked by the caller. Otherwise, only a 
new branch can be created. This restriction is not enforced
for the owner of the file, unless locking is set to \fIstrict\fR
(see \fIrcs\fR (1)).
A lock held by someone else may be broken with the \fIrcs\fR command.
.PP
Normally, \fIci\fR checks whether the revision to be deposited is different
from the preceding one. If it is not different, \fIci\fR
either aborts the deposit (if \fB-q\fR is given) or asks whether to abort
(if \fB-q\fR is omitted). A deposit can be forced with the \fB-f\fR option.
.PP
For each revision deposited, \fIci\fR prompts for a log message.
The log message should summarize the change and must be terminated with
a line containing a single `.' or a control-D.
If several files are checked in, \fIci\fR asks whether to reuse the
previous log message.
If the std. input is not a terminal, \fIci\fR suppresses the prompt 
and uses the same log message for all files.
See also \fB-m\fR.
.PP
The number of the deposited revision can be given by any of the options
\fB-r\fR, \fB-f\fR, \fB-k\fR, \fB-l\fR, \fB-u\fR, or \fB-q\fR (see \fB-r\fR).
.PP
If the RCS file does not exist, \fIci\fR creates it and
deposits the contents of the working file as the initial revision
(default number: 1.1).
The access list is initialized to empty.
Instead of the log message, \fIci\fR requests descriptive text (see
\fB-t\fR below).
.TP 10
.B \-r\fR[\fIrev\fR] 
assigns the revision number \fIrev\fR 
to the checked-in revision, releases the corresponding lock, and
deletes the working file. This is also the default.

If \fIrev\fR is omitted, \fIci\fR derives the new revision number from
the caller's last lock. If the caller has locked the tip revision of a branch,
the new revision is appended to that branch. The new revision number is obtained
by incrementing the tip revision number.
If the caller locked a non-tip revision, a new branch is started at
that revision by incrementing the highest branch number at that revision.
The default initial branch and level numbers are 1.
If the caller holds no lock, but he is the owner of the file and locking
is not set to \fIstrict\fR, then the revision is appended to the trunk.

If \fIrev\fR indicates a revision number, it must be higher than the latest
one on the branch to which \fIrev\fR belongs, or must start a new branch.

If \fIrev\fR indicates a branch instead of a revision,
the new revision is appended to that branch. The level number is obtained
by incrementing the tip revision number of that branch.
If \fIrev\fR indicates a non-existing branch,
that branch is created with the initial revision numbered \fIrev.1\fR.

Exception: On the trunk, revisions can be appended to the end, but
not inserted.
.TP 10
.B \-f\fR[\fIrev\fR]
forces a deposit; the new revision is deposited even it is not different
from the preceding one.
.TP 10
.B \-k\fR[\fIrev\fR]
searches the working file for keyword values to determine its revision number, 
creation date, author, and state (see \fIco\fR (1)), and assigns these 
values to the deposited revision, rather than computing them locally.
A revision number given by a command option overrides the number
in the working file.
This option is useful for software distribution. A revision that is sent to
several sites should be checked in with the \fB-k\fR option at these sites to 
preserve its original number, date, author, and state. 
.TP 10
.B \-l\fR[\fIrev\fR]
works like \fB-r\fR, except it performs an additional \fIco -l\fR for the
deposited revision. Thus, the deposited revision is immediately
checked out again and locked.
This is useful for saving a revision although one wants to continue 
editing it after the checkin.
.TP 10
.B \-u\fR[\fIrev\fR]
works like \fB-l\fR, except that the deposited revision is not locked.
This is useful if one wants to process (e.g., compile) the revision
immediately after checkin.
.TP 10
.B \-q\fR[\fIrev\fR] 
quiet mode; diagnostic output is not printed.
A revision that is not different from the preceding one is not deposited,
unless \fB-f\fR is given.
.TP 10
.BI \-m "msg"
uses the string \fImsg\fR as the log message for all revisions checked in.
.TP 10
.BI \-n "name"
assigns the symbolic name \fIname\fR to the number of the checked-in revision.
\fICi\fR prints an error message if \fIname\fR is already assigned to another
number.
.TP 10
.BI \-N "name"
same as \fB-n\fR, except that it overrides a previous assignment of \fIname\fR.
.TP
.BI \-s "state"
sets the state of the checked-in revision to the identifier \fIstate\fR.
The default is \fIExp\fR.
.TP
.B \-t\fR[\fItxtfile\fR]
writes descriptive text into the RCS file (deletes the existing text).
If \fItxtfile\fR is omitted, 
\fIci\fR prompts the user for text supplied from the std. input,
terminated with a line containing a single `.' or control-D.
Otherwise, the descriptive text is copied from the file \fItxtfile\fR.
During initialization, descriptive text is requested
even if \fB-t\fR is not given.
The prompt is suppressed if std. input is not a terminal.
.SH DIAGNOSTICS
For each revision,
\fIci\fR prints the RCS file, the working file, and the number
of both the deposited and the preceding revision.
The exit status always refers to the last file checked in,
and is 0 if the operation was successful, 1 otherwise.
.SH "FILE MODES"
An RCS file created by \fIci\fR inherits the read and execute permissions
from the working file. If the RCS file exists already, \fIci\fR
preserves its read and execute permissions.
\fICi\fR always turns off all write permissions of RCS files. 
.SH FILES
The caller of the command
must have read/write permission for the directories containing
the RCS file and the working file, and read permission for the RCS file itself.
A number of temporary files are created.
A semaphore file is created in the directory containing the RCS file.
\fICi\fR always creates a new RCS file and unlinks the old one.
This strategy makes links to RCS files useless.
.SH IDENTIFICATION
.de VL
\\$2
..
Author: Walter F. Tichy,
Purdue University, West Lafayette, IN, 47907.
.sp 0
Revision Number:
.VL $Revision: 3.1 $
; Release Date:
.VL $Date: 83/04/04 15:52:35 $
\&.
.sp 0
Copyright \(co 1982 by Walter F. Tichy.
.SH SEE ALSO
co (1), ident(1), rcs (1), rcsdiff (1), rcsintro (1), rcsmerge (1), rlog (1), rcsfile (5), sccstorcs (8).
.sp 0
Walter F. Tichy, "Design, Implementation, and Evaluation of a Revision Control
System," in \fIProceedings of the 6th International Conference on Software
Engineering\fR, IEEE, Tokyo, Sept. 1982.
.SH BUGS