\input texinfo  @c -*-texinfo-*-

@comment Id: pcl-cvs.texinfo,v 1.45 1993/05/31 22:38:15 ceder Exp 
@comment Documentation for the GNU Emacs CVS mode.
@comment Copyright (C) 1992 Per Cederqvist

@comment This file is part of the pcl-cvs distribution.

@comment Pcl-cvs is free software; you can redistribute it and/or modify
@comment it under the terms of the GNU General Public License as published by
@comment the Free Software Foundation; either version 1, or (at your option)
@comment any later version.

@comment Pcl-cvs is distributed in the hope that it will be useful,
@comment but WITHOUT ANY WARRANTY; without even the implied warranty of
@comment MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@comment GNU General Public License for more details.

@comment You should have received a copy of the GNU General Public License
@comment along with pcl-cvs; see the file COPYING.  If not, write to
@comment the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

@setfilename pcl-cvs.info
@settitle Pcl-cvs - The Emacs Front-End to CVS
@setchapternewpage on
     
@ifinfo
Copyright @copyright{} 1992 Per Cederqvist

Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
are preserved on all copies.

@ignore
Permission is granted to process this file through Tex and print the
results, provided the printed document carries copying permission
notice identical to this one except for the removal of this paragraph
(this paragraph not being relevant to the printed manual).

@end ignore
Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided also that the
section entitled ``GNU General Public License'' is included exactly as
in the original, and provided that the entire resulting derived work is
distributed under the terms of a permission notice identical to this one.

Permission is granted to copy and distribute translations of this manual
into another language, under the above conditions for modified versions,
except that the section entitled ``GNU General Public License'' and
this permission notice may be included in translations approved by the
Free Software Foundation instead of in the original English.
@end ifinfo

@synindex vr fn     
@comment The titlepage section does not appear in the Info file.
@titlepage
@sp 4
@comment The title is printed in a large font.
@center @titlefont{User's Guide}
@sp
@center @titlefont{to}
@sp
@center @titlefont{pcl-cvs - the Emacs Front-End to CVS}
@sp 2
@center release 1.05
@comment -release-
@sp 3
@center Per Cederqvist
@sp 3
@center last updated 31 May 1993
@comment -date-

@comment  The following two commands start the copyright page
@comment  for the printed manual.  This will not appear in the Info file.
@page
@vskip 0pt plus 1filll
Copyright @copyright{} 1992 Per Cederqvist

Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
are preserved on all copies.

Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided also that the
section entitled ``GNU General Public License'' is included exactly as
in the original, and provided that the entire resulting derived work is
distributed under the terms of a permission notice identical to this one.

Permission is granted to copy and distribute translations of this manual
into another language, under the above conditions for modified versions,
except that the section entitled ``GNU General Public License'' and
this permission notice may be included in translations approved by the
Free Software Foundation instead of in the original English.
@end titlepage

@comment ================================================================
@comment                   The real text starts here
@comment ================================================================

@node    Top, Copying, (dir), (dir)
@comment node-name, next,          previous, up


@ifinfo
This info manual describes pcl-cvs which is a GNU Emacs front-end to
CVS.  It works with CVS version 1.3.  This manual is updated to release
1.05 of pcl-cvs.
@end ifinfo
@comment -release-

@menu
* Copying::                     GNU General Public License
* Installation::                How to install pcl-cvs on your system.
* About pcl-cvs::               Authors and ftp sites.

* Getting started::             An introduction with a walk-through example.
* Buffer contents::             An explanation of the buffer contents.
* Commands::                    All commands, grouped by type.

* Customization::               How you can tailor pcl-cvs to suit your needs.
* Future enhancements::         Future enhancements of pcl-cvs.
* Bugs::                        Bugs (known and unknown).
* Function and Variable Index::  List of functions and variables.
* Concept Index::               List of concepts.
* Key Index::                   List of keystrokes.

 --- The Detailed Node Listing ---

Installation

* Pcl-cvs installation::        How to install pcl-cvs on your system.
* On-line manual installation::  How to install the on-line manual.
* Typeset manual installation::  How to create typeset documentation 
                                 about pcl-cvs.

About pcl-cvs

* Contributors::                Contributors to pcl-cvs.
* Archives::                    Where can I get a copy of Pcl-Cvs?

Buffer contents

* File status::                 The meaning of the second field.
* Selected files::              How selection works.

Commands

* Updating the directory::      Commands to update the local directory
* Movement commands::           How to move up and down in the buffer
* Marking files::               How to mark files that other commands
                                will later operate on.
* Committing changes::          Checking in your modifications to the
                                CVS repository. 
* Editing files::               Loading files into Emacs.
* Getting info about files::    Display the log and status of files.
* Adding and removing files::   Adding and removing files
* Undoing changes::             Undoing changes
* Removing handled entries::    Uninteresting lines can easily be removed.
* Ignoring files::              Telling CVS to ignore generated files.
* Viewing differences::         Commands to @samp{diff} different versions.
* Emerge::                      
* Reverting your buffers::      Reverting your buffers
* Miscellaneous commands::      Miscellaneous commands
@end menu

@node Copying, Installation, Top, Top
@unnumbered GNU GENERAL PUBLIC LICENSE
@center Version 2, June 1991

@display
Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc.
675 Mass Ave, Cambridge, MA 02139, USA

Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
@end display

@unnumberedsec Preamble

  The licenses for most software are designed to take away your
freedom to share and change it.  By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software---to make sure the software is free for all its users.  This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it.  (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.)  You can apply it to
your programs, too.

  When we speak of free software, we are referring to freedom, not
price.  Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.

  To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.

  For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have.  You must make sure that they, too, receive or can get the
source code.  And you must show them these terms so they know their
rights.

  We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.

  Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software.  If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.

  Finally, any free program is threatened constantly by software
patents.  We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary.  To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.

  The precise terms and conditions for copying, distribution and
modification follow.

@iftex
@unnumberedsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
@end iftex
@ifinfo
@center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
@end ifinfo

@enumerate
@item
This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License.  The ``Program'', below,
refers to any such program or work, and a ``work based on the Program''
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language.  (Hereinafter, translation is included without limitation in
the term ``modification''.)  Each licensee is addressed as ``you''.

Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope.  The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.

@item
You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.

You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.

@item
You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:

@enumerate a
@item
You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.

@item
You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.

@item
If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License.  (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
@end enumerate

These requirements apply to the modified work as a whole.  If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works.  But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.

Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.

In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.

@item
You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:

@enumerate a
@item
Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,

@item
Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,

@item
Accompany it with the information you received as to the offer
to distribute corresponding source code.  (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
@end enumerate

The source code for a work means the preferred form of the work for
making modifications to it.  For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable.  However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.

If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.

@item
You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License.  Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.

@item
You are not required to accept this License, since you have not
signed it.  However, nothing else grants you permission to modify or
distribute the Program or its derivative works.  These actions are
prohibited by law if you do not accept this License.  Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.

@item
Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions.  You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.

@item
If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all.  For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.

If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.

It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices.  Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.

This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.

@item
If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded.  In such case, this License incorporates
the limitation as if written in the body of this License.

@item
The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time.  Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

Each version is given a distinguishing version number.  If the Program
specifies a version number of this License which applies to it and ``any
later version'', you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation.  If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.

@item
If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission.  For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this.  Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.

@iftex
@heading NO WARRANTY
@end iftex
@ifinfo
@center NO WARRANTY
@end ifinfo

@item
BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM ``AS IS'' WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.

@item
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
@end enumerate

@iftex
@heading END OF TERMS AND CONDITIONS
@end iftex
@ifinfo
@center END OF TERMS AND CONDITIONS
@end ifinfo

@page
@unnumberedsec Appendix: How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the ``copyright'' line and a pointer to where the full notice is found.

@smallexample
@var{one line to give the program's name and a brief idea of what it does.}
Copyright (C) 19@var{yy}  @var{name of author}

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
@end smallexample

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:

@smallexample
Gnomovision version 69, Copyright (C) 19@var{yy} @var{name of author}
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
@end smallexample

The hypothetical commands @samp{show w} and @samp{show c} should show
the appropriate parts of the General Public License.  Of course, the
commands you use may be called something other than @samp{show w} and
@samp{show c}; they could even be mouse-clicks or menu items---whatever
suits your program.

You should also get your employer (if you work as a programmer) or your
school, if any, to sign a ``copyright disclaimer'' for the program, if
necessary.  Here is a sample; alter the names:

@example
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.

@var{signature of Ty Coon}, 1 April 1989
Ty Coon, President of Vice
@end example

This General Public License does not permit incorporating your program into
proprietary programs.  If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library.  If this is what you want to do, use the GNU Library General
Public License instead of this License.

@node   Installation, About pcl-cvs, Copying, Top
@comment  node-name,    next,   previous,       up
@chapter Installation
@cindex Installation

This section describes the installation of pcl-cvs, the GNU Emacs CVS
front-end.  You should install not only the elisp files themselves, but
also the on-line documentation so that your users will know how to use
it.  You can create typeset documentation from the file
@file{pcl-cvs.texinfo} as well as an on-line info file.  The following
steps are also described in the file @file{INSTALL} in the source
directory.

@menu
* Pcl-cvs installation::        How to install pcl-cvs on your system.
* On-line manual installation::  How to install the on-line manual.
* Typeset manual installation::  How to create typeset documentation 
                                 about pcl-cvs.
@end menu

@node     Pcl-cvs installation, On-line manual installation, Installation, Installation
@comment  node-name,  next,  previous,  up
@section Installation of the pcl-cvs program
@cindex Installation of elisp files

@enumerate
@item
Edit the file @file{Makefile} to reflect the situation at your site.
The only things you have to change is the definition of @code{lispdir}
and @code{infodir}.  The elisp files will be copied to @code{lispdir},
and the info file to @code{infodir}.

@item
Configure pcl-cvs.el

There are a couple of paths that you have to check to make sure that
they match you system.  They appear early in the file pcl-cvs.el. 

@strong{NOTE:}  If your system is running emacs 18.57 or earlier you MUST
uncomment the line that says:

@example
(setq delete-exited-processes nil)
@end example

Setting @code{delete-exited-processes} to @code{nil} works around a bug
in emacs that causes it to dump core.  The bug was fixed in emacs
18.58.@refill

@item
Release 1.05 and later of pcl-cvs requires parts of the Elib library,
version 0.07 or later.  Elib is available via anonymous ftp from
prep.ai.mit.edu in @file{pub/gnu/elib-0.07.tar.z}, and from a lot of
other sites that mirrors prep.  Get Elib, and install it, before
proceeding.

@item
Type @samp{make install} in the source directory.  This will
byte-compile all @file{.el} files and copy both the @file{.el} and the
@file{.elc} into the directory you specified in step 1.

If you don't want to install the @file{.el} files but only the
@file{.elc} files (the byte-compiled files), you can type `@samp{make
install_elc}' instead of `@samp{make install}'.

If you only want to create the compiled elisp files, but don't want to
install them, you can type @samp{make elcfiles} instead.  This is what
happens if you only type @samp{make} without parameters.

@item
Edit the file @file{default.el} in your emacs lisp directory (usually
@file{/usr/gnu/emacs/lisp} or something similar) and enter the contents
of the file @file{pcl-cvs-startup.el} into it.  It contains a couple of
@code{auto-load}s that facilitates the use of pcl-cvs.

@end enumerate

@node On-line manual installation, Typeset manual installation, Pcl-cvs installation, Installation
@comment  node-name,  next,  previous,  up
@section Installation of the on-line manual.
@cindex Manual installation (on-line)
@cindex Installation of on-line manual
@cindex Generating the on-line manual
@cindex On-line manual (how to generate)
@cindex Info-file (how to generate)

@enumerate
@item
Create the info file @file{pcl-cvs} from @file{pcl-cvs.texinfo} by
typing @samp{make info}.  If you don't have the program @samp{makeinfo}
you can get it by anonymous ftp from e.g. @samp{ftp.gnu.ai.mit.edu} as
@file{pub/gnu/texinfo-2.14.tar.Z} (there might be a newer version there
when you read this), or you could use the preformatted info file
@file{pcl-cvs.info} that is included in the distribution (type
@samp{cp pcl-cvs.info pcl-cvs}).@refill

@item
Move the info file @file{pcl-cvs} to your standard info directory.
This might be called something like @file{/usr/gnu/emacs/info}.@refill

@item
Edit the file @file{dir} in the info directory and enter one line to
contain a pointer to the info file @file{pcl-cvs}.  The line can, for
instance, look like this:@refill

@example
* Pcl-cvs: (pcl-cvs).       An Emacs front-end to CVS.
@end example
@end enumerate

@node Typeset manual installation,  , On-line manual installation, Installation
@comment  node-name,  next,  previous,  up
@section How to make typeset documentation from pcl-cvs.texinfo
@cindex Manual installation (typeset)
@cindex Installation of typeset manual
@cindex Printing a manual
@cindex TeX - generating a typeset manual
@cindex Generating a typeset manual

If you have @TeX{} installed at your site, you can make a typeset manual
from @file{pcl-cvs.texinfo}.

@enumerate
@item
Run @TeX{} by typing `@samp{make pcl-cvs.dvi}'.  You will not get the
indices unless you have the @code{texindex} program.

@item
Convert the resulting device independent file @file{pcl-cvs.dvi} to a
form which your printer can output and print it.  If you have a
postscript printer there is a program, @code{dvi2ps}, which does.  There
is also a program which comes together with @TeX{}, @code{dvips}, which
you can use.

@end enumerate

@node     About pcl-cvs, Getting started, Installation, Top
@comment  node-name,     next, previous, up
@chapter About pcl-cvs
@cindex About pcl-cvs

Pcl-cvs is a front-end to CVS version 1.3.  It integrates the most
frequently used CVS commands into emacs.

@menu
* Contributors::                Contributors to pcl-cvs.
* Archives::                    Where can I get a copy of Pcl-Cvs?
@end menu

@node     Contributors, Archives, About pcl-cvs, About pcl-cvs
@comment  node-name,  next,  previous,  up
@section Contributors to pcl-cvs
@cindex Contributors
@cindex Authors

Contributions to the package are welcome.  I have limited time to work
on this project, but I will gladly add any code that you contribute to
me to this package (@pxref{Bugs}).

The following persons have made contributions to pcl-cvs.

@itemize @bullet
@item
Brian Berliner wrote CVS, together with some other contributors.
Without his work on CVS this package would be useless@dots{}

@item
Per Cederqvist wrote most of the otherwise unattributed functions in
pcl-cvs as well as all documentation.

@item
Inge Wallin (@samp{inge@@lysator.liu.se}) wrote the skeleton to
@file{pcl-cvs.texinfo}, and gave useful comments on it.  He also wrote
the files @file{elib-node.el} and @file{compile-all.el}.  The file
@file{cookie.el} was inspired by Inge.@refill

@item
Linus Tolke (@samp{linus@@lysator.liu.se}) contributed useful comments
on both the functionality and the documentation.@refill

@item
Jamie Zawinski (@samp{jwz@@lucid.com}) contributed
@file{pcl-cvs-lucid.el}.

@item
Leif Lonnblad contributed RCVS support.
@end itemize

Apart from these, a lot of people have send me suggestions, ideas,
requests, bug reports and encouragement.  Thanks a lot!  Without your
there would be no new releases of pcl-cvs.

@node     Archives,  , Contributors, About pcl-cvs
@comment  node-name,  next,  previous,  up
@section Where can I get pcl-cvs?
@cindex Sites
@cindex Archives
@cindex Ftp-sites
@cindex Getting pcl-cvs
@cindex Email archives

The latest release of pcl-cvs can be fetched via anonymous ftp from
@code{ftp.lysator.liu.se}, (IP no. 130.236.254.1) in the directory
@code{pub/emacs}.  If you don't live in Scandinavia you should probably
check with archie to see if there is a site closer to you that archives
pcl-cvs.

New releases will be announced to appropriate newsgroups.  If you send
your email address to me I will add you to my list of people to mail
when I make a new release.

@node Getting started, Buffer contents, About pcl-cvs, Top
@comment  node-name,  next,  previous,  up
@chapter Getting started
@cindex Introduction
@cindex Example run

This document assumes that you know what CVS is, and that you at least
knows the fundamental concepts of CVS.  If that is not the case you
should read the man page for CVS.

Pcl-cvs is only useful once you have checked out a module.  So before
you invoke it you must have a copy of a module somewhere in the file
system.

You invoke pcl-cvs by typing @kbd{M-x cvs-update RET}.  If your emacs
responds with @samp{[No match]} your system administrator has not
installed pcl-cvs properly.  Try @kbd{M-x load-library RET pcl-cvs RET}.
If that also fails - talk to your root.  If it succeeds you might put
this line in your @file{.emacs} file so that you don't have to type the
@samp{load-library} command every time you wish to use pcl-cvs:

@example
(autoload 'cvs-update "pcl-cvs" nil t)
@end example

The function @code{cvs-update} will ask for a directory.  The command
@samp{cvs update} will be run in that directory.  (It should contain
files that have been checked out from a CVS archive.)  The output from
@code{cvs} will be parsed and presented in a table in a buffer called
@samp{*cvs*}.  It might look something like this:

@example
PCL-CVS release 1.05.
@comment -release-

In directory /users/ceder/FOO/test:
  Updated     bar
  Updated     file.txt
  Modified ci namechange
  Updated     newer

In directory /users/ceder/FOO/test/sub:
  Modified ci ChangeLog
---------- End -----
@end example

In this example the three files (@file{bar}, @file{file.txt} and
@file{newer}) that are marked with @samp{Updated} have been copied from
the CVS repository to @file{/users/ceder/FOO/test/} since someone else
have checked in newer versions of them.  Two files (@file{namechange}
and @file{sub/ChangeLog}) have been modified locally, and needs to be
checked in.

You can move the cursor up and down in the buffer with @kbd{C-n} and
@kbd{C-p} or @kbd{n} and @kbd{p}.  If you press @kbd{c} on one of the
@samp{Modified} files that file will be checked in to the CVS
repository. @xref{Committing changes}.  You can press @kbd{x} to get rid
of the "uninteresting" files that have only been @samp{Updated} (and
don't require any further action from you).@refill

You can also easily get a @samp{diff} between your modified file and the
base version that you started from, and you can get the output from
@samp{cvs log} and @samp{cvs status} on the listed files simply by
pressing a key (@pxref{Getting info about files}).

@node Buffer contents, Commands, Getting started, Top
@comment  node-name,  next,  previous,  up
@chapter Buffer contents
@cindex Buffer contents

The display contains four columns.  They contain, from left to right:

@itemize @bullet
@item
An asterisk when the file is @dfn{marked} (@pxref{Selected
files}).@refill
@item
The status of the file.  See @xref{File status}, for more information.@refill
@item
A "need to be checked in"-marker (@samp{ci}).
@item
The file name.
@end itemize

@menu
* File status::                 The meaning of the second field.
* Selected files::              How selection works.
@end menu

@node File status, Selected files, Buffer contents, Buffer contents
@comment  node-name,  next,  previous,  up
@section File status
@cindex File status
@cindex Updated (file status)
@cindex Modified (file status)
@cindex Merged (file status)
@cindex Conflict (file status)
@cindex Added (file status)
@cindex Removed (file status)
@cindex Unknown (file status)
@cindex Removed from repository (file status)
@cindex Removed from repository, changed by you (file status)
@cindex Removed by you, changed in repository (file status)
@cindex Move away @var{file} - it is in the way (file status)
@cindex This repository is missing!@dots{} (file status)

The @samp{file status} field can have the following values:

@table @samp
@item Updated
The file was brought up to date with respect to the repository.  This is
done for any file that exists in the repository but not in your source,
and for files that you haven't changed but are not the most recent
versions available in the repository.@refill

@item Modified
The file is modified in  your  working  directory, and there was no
modification to the same file in the repository.@refill

@item Merged
The file is modified in your working directory, and there were
modifications in the repository as well as in your copy, but they were
merged successfully, without conflict, in your working directory.@refill

@item Conflict
A conflict was detected while trying to merge your changes to @var{file}
with changes from the source repository.  @var{file} (the copy in your
working directory) is now the output of the @samp{rcsmerge} command on
the two versions; an unmodified copy of your file is also in your
working directory, with the name @file{.#@var{file}.@var{version}},
where @var{version} is the RCS revision that your modified file started
from.  @xref{Viewing differences}, for more details.@refill

@item Added
The file has been added by you, but it still needs to be checked in to
the repository.@refill

@item Removed
The file has been removed by you, but it needs to be checked in to the
repository.  You can resurrect it by typing @kbd{a} (@pxref{Adding and
removing files}).@refill

@item Unknown
A file that was detected in your directory, but that neither appears in
the repository, nor is present on the list of files that CVS should
ignore.@refill

@end table

There are also a few special cases, that rarely occur, which have longer
strings in the fields:

@table @samp
@item Removed from repository
The file has been removed from your directory since someone has removed
it from the repository.  (It is still present in the Attic directory, so
no permanent loss has occurred).  This, unlike the other entries in this
table, is not an error condition.@refill

@item Removed from repository, changed by you
You have modified a file that someone have removed from the repository.
You can correct this situation by removing the file manually (see
@pxref{Adding and removing files}).@refill

@item Removed by you, changed in repository
You have removed a file, and before you committed the removal someone
committed a change to that file.  You could use @kbd{a} to resurrect the
file (see @pxref{Adding and removing files}).@refill

@item Move away @var{file} - it is in the way
For some reason CVS does not like the file @var{file}.  Rename or remove
it.@refill

@item This repository is missing! Remove this dir manually.
It is impossible to remove a directory in the CVS repository in a clean
way.  Someone have tried to remove one, and CVS gets confused.  Remove
your copy of the directory.@refill
@end table

@node Selected files,  , File status, Buffer contents
@comment  node-name,  next,  previous,  up
@section Selected files
@cindex Selected files
@cindex Marked files
@cindex File selection
@cindex Active files

Many of the commands works on the current set of @dfn{selected} files.

@itemize @bullet
@item
If there are any files that are marked they constitute the set of
selected files.@refill
@item
Otherwise, if the cursor points to a file, that file is the selected
file.@refill
@item
Otherwise, if the cursor points to a directory, all the files in that
directory that appears in the buffer are the selected files.
@end itemize

This scheme might seem a little complicated, but once one get used to
it, it is quite powerful.

@xref{Marking files} tells how you mark and unmark files.

@node Commands, Customization, Buffer contents, Top
@comment  node-name,  next,  previous,  up
@chapter Commands

@iftex
This chapter describes all the commands that you can use in pcl-cvs.
@end iftex
@ifinfo
The nodes in this menu contains explanations about all the commands that
you can use in pcl-cvs.  They are grouped together by type.
@end ifinfo

@menu
* Updating the directory::      Commands to update the local directory
* Movement commands::           How to move up and down in the buffer
* Marking files::               How to mark files that other commands
                                will later operate on.
* Committing changes::          Checking in your modifications to the
                                CVS repository. 
* Editing files::               Loading files into Emacs.
* Getting info about files::    Display the log and status of files.
* Adding and removing files::   Adding and removing files
* Undoing changes::             Undoing changes
* Removing handled entries::    Uninteresting lines can easily be removed.
* Ignoring files::              Telling CVS to ignore generated files.
* Viewing differences::         Commands to @samp{diff} different versions.
* Emerge::                      
* Reverting your buffers::      Reverting your buffers
* Miscellaneous commands::      Miscellaneous commands
@end menu

@node Updating the directory, Movement commands, Commands, Commands
@comment  node-name,  next,  previous,  up
@section Updating the directory
@findex cvs-update
@findex cvs-mode-update-no-prompt
@findex cvs-delete-lock
@cindex Getting the *cvs* buffer
@kindex g - Rerun @samp{cvs update}


@table @kbd

@item M-x cvs-update
Run a @samp{cvs update} command.  You will be asked for the directory in
which the @samp{cvs update} will be run.  The output will be parsed by
pcl-cvs, and the result printed in the @samp{*cvs*} buffer (see
@pxref{Buffer contents} for a description of the contents).@refill

By default, @samp{cvs-update} will descend recursively into
subdirectories.  You can avoid that behavior by giving a prefix
argument to it (e.g., by typing @kbd{C-u M-x cvs-update RET}).@refill

All other commands in pcl-cvs requires that you have a @samp{*cvs*}
buffer.  This is the command that you use to get one.@refill

CVS uses lock files in the repository to ensure the integrity of the
data files in the repository.  They might be left behind i.e. if a
workstation crashes in the middle of a CVS operation.  CVS outputs a
message when it is waiting for a lock file to go away.  Pcl-cvs will
show the same message in the *cvs* buffer, together with instructions
for deleting the lock files.  You should normally not have to delete
them manually --- just wait a little while and the problem should fix
itself.  But if the lock files doesn't disappear you can delete them
with @kbd{M-x cvs-delete-lock RET}.@refill

@item g
This will run @samp{cvs update} again.  It will always use the same
buffer that was used with the previous @samp{cvs update}.  Give a prefix
argument to avoid descending into subdirectories.  This runs the command
@samp{cvs-mode-update-no-prompt}.@refill
@end table
@node Movement commands, Marking files, Updating the directory, Commands
@comment  node-name,  next,  previous,  up
@section Movement Commands
@cindex Movement Commands
@findex cookie-next-cookie
@findex cookie-previous-cookie
@kindex SPC - Move down one file
@kindex C-n - Move down one file
@kindex n - Move down one file
@kindex C-p - Move up one file
@kindex p - Move up on file

You can use most normal Emacs commands to move forward and backward in
the buffer.  Some keys are rebound to functions that take advantage of
the fact that the buffer is a pcl-cvs buffer:


@table @kbd
@item SPC
@itemx C-n
@itemx n
These keys move the cursor one file forward, towards the end of the
buffer (@code{cookie-next-cookie}).

@item C-p
@itemx p
These keys move one file backward, towards the beginning of the buffer
(@code{cookie-previous-cookie}).
@end table

@node Marking files, Committing changes, Movement commands, Commands
@comment  node-name,  next,  previous,  up
@section Marking files
@cindex Selecting files (commands to mark files)
@cindex Marking files
@kindex m - marking a file
@kindex M - marking all files
@kindex u - unmark a file
@kindex ESC DEL - unmark all files
@kindex DEL - unmark previous file
@findex cvs-mode-mark
@findex cvs-mode-unmark
@findex cvs-mode-mark-all-files
@findex cvs-mode-unmark-all-files
@findex cvs-mode-unmark-up

Pcl-cvs works on a set of @dfn{selected files} (@pxref{Selected files}).
You can mark and unmark files with these commands:

@table @kbd
@item m
This marks the file that the cursor is positioned on.  If the cursor is
positioned on a directory all files in that directory will be marked.
(@code{cvs-mode-mark}).

@item u
Unmark the file that the cursor is positioned on. If the cursor is on a
directory, all files in that directory will be unmarked.
(@code{cvs-mode-unmark}).@refill

@item M
Mark @emph{all} files in the buffer (@code{cvs-mode-mark-all-files}).

@item @key{ESC} @key{DEL}
Unmark @emph{all} files (@code{cvs-mode-unmark-all-files}).

@item @key{DEL}
Unmark the file on the previous line, and move point to that line
(@code{cvs-mode-unmark-up}).
@end table

@node Committing changes, Editing files, Marking files, Commands
@comment  node-name,  next,  previous,  up
@section Committing changes
@cindex Committing changes
@cindex Ci
@findex cvs-mode-commit
@kindex c - commit files
@vindex cvs-erase-input-buffer (variable)
@vindex cvs-auto-revert-after-commit (variable)
@cindex Commit buffer
@cindex Edit buffer
@cindex Erasing commit message
@cindex Reverting buffers after commit

@table @kbd
@item c
All files that have a "need to be checked in"-marker (@pxref{Buffer
contents}) can be checked in with the @kbd{c} command.  It checks in all
selected files (@pxref{Selected files}) (except those who lack the
"ci"-marker - they are ignored).  Pressing @kbd{c} causes
@code{cvs-mode-commit} to be run.@refill

When you press @kbd{c} you will get a buffer called
@samp{*cvs-commit-message*}.  Enter the log message for the file(s) in
it.  When you are ready you should press @kbd{C-c C-c} to actually
commit the files (using @code{cvs-edit-done}).

Normally the @samp{*cvs-commit-message*} buffer will retain the log
message from the previous commit, but if the variable
@code{cvs-erase-input-buffer} is set to a non-@code{nil} value the
buffer will be erased.  Point and mark will always be located around the
entire buffer so that you can easily erase it with @kbd{C-w}
(@samp{kill-region}).@refill

If you are editing the files in your emacs an automatic
@samp{revert-buffer} will be performed.  (If the file contains
@samp{$@asis{Id}$} keywords @samp{cvs commit} will write a new file with
the new values substituted.  The auto-revert makes sure that you get
them into your buffer). The revert will not occur if you have modified
your buffer, or if @samp{cvs-auto-revert-after-commit} is set to
@samp{nil}.@refill
@end table

@node Editing files, Getting info about files, Committing changes, Commands
@comment  node-name,  next,  previous,  up
@section Editing files

@cindex Editing files
@cindex Finding files
@cindex Loading files
@cindex Dired
@cindex Invoking dired
@findex cvs-mode-find-file
@findex cvs-mode-find-file-other-window
@findex cvs-mode-add-change-log-entry-other-window
@kindex f - find file or directory
@kindex o - find file in other window
@kindex A - add ChangeLog entry

There are currently three commands that can be used to find a file (that
is, load it into a buffer and start editing it there).  These commands
work on the line that the cursor is situated at.  They ignore any marked
files.

@table @kbd
@item f
Find the file that the cursor points to.  Run @samp{dired}
@ifinfo
(@pxref{Dired,,,Emacs})
@end ifinfo
if the cursor points to a directory (@code{cvs-mode-find-file}).@refill

@item o
Like @kbd{f}, but use another window
(@code{cvs-mode-find-file-other-window}).@refill

@item A
Invoke @samp{add-change-log-entry-other-window} to edit a
@samp{ChangeLog} file.  The @samp{ChangeLog} will be found in the
directory of the file the cursor points to.
(@code{cvs-mode-add-change-log-entry-other-window}).@refill
@end table

@node Getting info about files, Adding and removing files, Editing files, Commands
@comment  node-name,  next,  previous,  up
@section Getting info about files
@cindex Status (cvs command)
@cindex Log (RCS/cvs command)
@cindex Getting status
@kindex l - run @samp{cvs log}
@kindex s - run @samp{cvs status}
@findex cvs-mode-log
@findex cvs-mode-status

Both of the following commands can be customized.
@xref{Customization}.@refill

@table @kbd
@item l
Run @samp{cvs log} on all selected files, and show the result in a
temporary buffer (@code{cvs-mode-log}).

@item s
Run @samp{cvs status} on all selected files, and show the result in a
temporary buffer (@code{cvs-mode-status}).
@end table

@node Adding and removing files, Undoing changes, Getting info about files, Commands
@comment  node-name,  next,  previous,  up
@section Adding and removing files
@cindex Adding files
@cindex Removing files
@cindex Resurrecting files
@cindex Deleting files
@cindex Putting files under CVS control
@kindex a - add a file
@kindex r - remove a file
@findex cvs-mode-add
@findex cvs-mode-remove-file

The following commands are available to make it easy to add and remove
files from the CVS repository.

@table @kbd
@item a
Add all selected files.  This command can be used on @samp{Unknown}
files (see @pxref{File status}).  The status of the file will change to
@samp{Added}, and you will have to use @kbd{c} (@samp{cvs-mode-commit}, see
@pxref{Committing changes}) to really add the file to the
repository.@refill

This command can also be used on @samp{Removed} files (before you commit
them) to resurrect them.

Selected files that are neither @samp{Unknown} nor @samp{Removed} will
be ignored by this command.

The command that is run is @code{cvs-mode-add}.

@item r
This command removes the selected files (after prompting for
confirmation).  The files are @samp{rm}ed from your directory and
(unless the status was @samp{Unknown}; @pxref{File status}) they will
also be @samp{cvs remove}d.  If the files were @samp{Unknown} they will
disappear from the buffer.  Otherwise their status will change to
@samp{Removed}, and you must use @kbd{c} (@samp{cvs-mode-commit},
@pxref{Committing changes}) to commit the removal.@refill

The command that is run is @code{cvs-mode-remove-file}.
@end table

@node Undoing changes, Removing handled entries, Adding and removing files, Commands
@comment  node-name,  next,  previous,  up
@section Undoing changes
@cindex Undo changes
@cindex Flush changes
@kindex U - undo changes
@findex cvs-mode-undo-local-changes

@table @kbd
@item U
If you have modified a file, and for some reason decide that you don't
want to keep the changes, you can undo them with this command.  It works
by removing your working copy of the file and then getting the latest
version from the repository (@code{cvs-mode-undo-local-changes}.
@end table

@node Removing handled entries, Ignoring files, Undoing changes, Commands
@comment  node-name,  next,  previous,  up
@section Removing handled entries
@cindex Expunging uninteresting entries
@cindex Uninteresting entries, getting rid of them
@cindex Getting rid of uninteresting lines
@cindex Removing uninteresting (processed) lines
@cindex Handled lines, removing them
@kindex x - remove processed entries
@kindex C-k - remove selected entries
@findex cvs-mode-remove-handled
@findex cvs-mode-acknowledge
@findex cvs-mode-ignore

@table @kbd
@item x
This command allows you to remove all entries that you have processed.
More specifically, the lines for @samp{Updated} files (@pxref{File
status} and files that have been checked in (@pxref{Committing changes})
are removed from the buffer.  If a directory becomes empty the heading
for that directory is also removed.  This makes it easier to get an
overview of what needs to be done.

The command is called @code{cvs-mode-remove-handled}.  If
@samp{cvs-auto-remove-handled} is set to non-@code{nil} this will
automatically be performed after every commit.@refill

@item C-k
This command can be used for lines that @samp{cvs-mode-remove-handled} would
not delete, but that you want to delete (@code{cvs-mode-acknowledge}).
@end table

@node Ignoring files, Viewing differences, Removing handled entries, Commands
@comment  node-name,  next,  previous,  up
@section Ignoring files

@table @kbd
@item i
Arrange so that CVS will ignore the selected files.  The file names are
added to the @file{.cvsignore} file in the corresponding directory.  If
the @file{.cvsignore} doesn't exist it will be created.

The @file{.cvsignore} file should normally be added to the repository,
but you could ignore it also if you like it better that way.

This runs @code{cvs-mode-ignore}.
@end table

@node Viewing differences, Emerge, Ignoring files, Commands
@comment  node-name,  next,  previous,  up
@section Viewing differences
@cindex Diff
@cindex Conflicts, how to resolve them
@cindex Viewing differences
@kindex d - run @samp{cvs diff}
@kindex b - diff backup file
@findex cvs-mode-diff-cvs
@findex cvs-mode-diff-backup
@vindex cvs-diff-ignore-marks (variable)

@table @kbd
@item d
Display a @samp{cvs diff} between the selected files and the RCS version
that they are based on.  @xref{Customization} describes how you can send
flags to @samp{cvs diff}.  If @var{cvs-diff-ignore-marks} is set to a
non-@code{nil} value or if a prefix argument is given (but not both) any
marked files will not be considered to be selected.
(@code{cvs-mode-diff-cvs}).@refill

@item b
If CVS finds a conflict while merging two versions of a file (during a
@samp{cvs update}, @pxref{Updating the directory}) it will save the
original file in a file called @file{.#@var{FILE}.@var{VERSION}} where
@var{FILE} is the name of the file, and @var{VERSION} is the RCS version
number that your file was based on.@refill

With the @kbd{b} command you can run a @samp{diff} on the files
@file{.#@var{FILE}.@var{VERSION}} and @file{@var{FILE}}.  You can get a
context- or Unidiff by setting @samp{cvs-diff-flags} -
@pxref{Customization}.  This command only works on files that have
status @samp{Conflict} or @samp{Merged}.@refill

If @var{cvs-diff-ignore-marks} is set to a non-@code{nil} value or if a
prefix argument is given (but not both) any marked files will not be
considered to be selected.  (@code{cvs-mode-diff-backup}).@refill
@end table

@node Emerge, Reverting your buffers, Viewing differences, Commands
@comment  node-name,  next,  previous,  up
@section Running emerge
@cindex Emerge
@cindex Invoking emerge
@cindex Conflicts, resolving
@cindex Resolving conflicts
@kindex e - invoke @samp{emerge}
@findex cvs-mode-emerge

@table @kbd
@item e
Invoke @samp{emerge} on one file.  This command works slightly different
depending on the file status.

@table @asis
@item @samp{Modified}
Run @samp{emerge-files} with your working file as file A, and the latest
revision in the repository as file B.

@item @samp{Merged}
@itemx @samp{Conflict}
Run @samp{emerge-files-with-ancestor} with your working file (as it was
prior to your invocation of @samp{cvs-update}) as file A, the latest
revision in the repository as file B, and the revision that you based
your local modifications on as ancestor.
@end table

@strong{Note:} CVS has already performed a merge.  The resulting file is
not used in any way if you use this command.  If you use the @kbd{q}
command inside @samp{emerge} (to successfully terminate the merge) the
file that CVS created will be overwritten.
@end table

@node Reverting your buffers, Miscellaneous commands, Emerge, Commands
@comment  node-name,  next,  previous,  up
@section Reverting your buffers
@findex cvs-mode-revert-updated-buffers
@kindex R - revert buffers
@cindex Syncing buffers
@cindex Reverting buffers

@table @kbd
@item R
If you are editing (or just viewing) a file in a buffer, and that file
is changed by CVS during a @samp{cvs-update}, all you have to do is type
@kbd{R} in the *cvs* buffer to read in the new versions of the
files.@refill

All files that are @samp{Updated}, @samp{Merged} or in @samp{Conflict}
are reverted from the disk.  Any other files are ignored.  Only files
that you were already editing are read.@refill

An error is signalled if you have modified the buffer since it was last
changed. (@code{cvs-mode-revert-updated-buffers}).@refill
@end table

@node Miscellaneous commands,  , Reverting your buffers, Commands
@comment  node-name,  next,  previous,  up
@section Miscellaneous commands
@findex cvs-byte-compile-files
@cindex Recompiling elisp files
@cindex Byte compilation
@cindex Getting rid of lock files
@cindex Lock files
@kindex q - bury the *cvs* buffer
@findex bury-buffer

@table @kbd
@item M-x cvs-byte-compile-files
Byte compile all selected files that end in .el.

@item M-x cvs-delete-lock
This command can be used in any buffer, and deletes the lock files that
the *cvs* buffer informs you about.  You should normally never have to
use this command since CVS tries very carefully to always remove the
lock files itself.

You can only use this command when a message in the *cvs* buffer tells
you so.  You should wait a while before using this command in case
someone else is running a cvs command.

@item q
Bury the *cvs* buffer. (@code{bury-buffer}).

@end table

@node Customization, Future enhancements, Commands, Top
@comment  node-name,  next,  previous,  up
@chapter Customization
@vindex cvs-erase-input-buffer (variable)
@vindex cvs-inhibit-copyright-message (variable)
@vindex cvs-diff-flags (variable)
@vindex cvs-diff-ignore-marks (variable)
@vindex cvs-log-flags (variable)
@vindex cvs-status-flags (variable)
@vindex cvs-auto-remove-handled (variable)
@vindex cvs-update-prog-output-skip-regexp (variable)
@vindex cvs-cvsroot (variable)
@vindex TMPDIR (environment variable)
@vindex cvs-auto-revert-after-commit (variable)
@vindex cvs-commit-buffer-require-final-newline (variable)
@vindex cvs-sort-ignore-file (variable)
@cindex Inhibiting the Copyright message.
@cindex Copyright message, getting rid of it
@cindex Getting rid of the Copyright message.
@cindex Customization
@cindex Variables, list of all
@cindex Erasing the input buffer
@cindex Context diff, how to get
@cindex Unidiff, how to get
@cindex Automatically remove handled files
@cindex -u option in modules file
@cindex Modules file (-u option)
@cindex Update program (-u option in modules file)
@cindex Reverting buffers after commit
@cindex Require final newline
@cindex Automatically inserting newline
@cindex Commit message, inserting newline
@cindex Sorting the .cvsignore file
@cindex .cvsignore file, sorting
@cindex Automatically sorting .cvsignore

If you have an idea about any customization that would be handy but
isn't present in this list, please tell me!  @xref{Bugs} for info on how
to reach me.@refill

@table @samp
@item cvs-erase-input-buffer
If set to anything else than @code{nil} the edit buffer will be erased
before you write the log message (@pxref{Committing changes}).

@item cvs-inhibit-copyright-message
The copyright message that is displayed on startup can be annoying after
a while.  Set this variable to @samp{t} if you want to get rid of it.
(But don't set this to @samp{t} in the system defaults file - new users
should see this message at least once).

@item cvs-diff-flags
A list of strings to pass as arguments to the @samp{cvs diff} and
@samp{diff} programs.  This is used by @samp{cvs-mode-diff-cvs} and
@samp{cvs-mode-diff-backup} (key @kbd{b}, @pxref{Viewing differences}).  If
you prefer the Unidiff format you could add this line to your
@file{.emacs} file:@refill

@example
(setq cvs-diff-flags '("-u"))
@end example

@item cvs-diff-ignore-marks
If this variable is non-@code{nil} or if a prefix argument is given (but
not both) to @samp{cvs-mode-diff-cvs} or @samp{cvs-mode-diff-backup}
marked files are not considered selected.

@item cvs-log-flags
List of strings to send to @samp{cvs log}.  Used by @samp{cvs-mode-log}
(key @kbd{l}, @pxref{Getting info about files}).

@item cvs-status-flags
List of strings to send to @samp{cvs status}.  Used by @samp{cvs-mode-status}
(key @kbd{s}, @pxref{Getting info about files}).

@item cvs-auto-remove-handled
If this variable is set to any non-@code{nil} value
@samp{cvs-mode-remove-handled} will be called every time you check in
files, after the check-in is ready.  @xref{Removing handled
entries}.@refill

@item cvs-auto-revert-after-commit
If this variable is set to any non-@samp{nil} value any buffers you have
that visit a file that is committed will be automatically reverted.
This variable is default @samp{t}. @xref{Committing changes}.@refill

@item cvs-update-prog-output-skip-regexp
The @samp{-u} flag in the @file{modules} file can be used to run a command
whenever a @samp{cvs update} is performed (see cvs(5)).  This regexp
is used to search for the last line in that output.  It is normally set
to @samp{"$"}.  That setting is only correct if the command outputs
nothing.  Note that pcl-cvs will get very confused if the command
outputs @emph{anything} to @samp{stderr}.

@item cvs-cvsroot
This variable can be set to override @samp{CVSROOT}.  It should be a
string. If it is set then everytime a cvs command is run it will be
called as @samp{cvs -d @var{cvs-cvsroot}@dots{}}  This can be useful if
your site has several repositories.

@item TMPDIR
Pcl-cvs uses this @emph{environment variable} to decide where to put the
temporary files it needs.  It defaults to @file{/tmp} if it is not set.

@item cvs-commit-buffer-require-final-newline
When you enter a log message in the @samp{*cvs-commit-message*} buffer
pcl-cvs will normally automatically insert a trailing newline, unless
there already is one.  This behavior can be controlled via
@samp{cvs-commit-buffer-require-final-newline}.  If it is @samp{t} (the
default behavior), a newline will always be appended.  If it is
@samp{nil}, newlines will never be appended.  Any other value causes
pcl-cvs to ask the user whenever there is no trailing newline in the
commit message buffer.

@item cvs-sort-ignore-file
If this variable is set to any non-@samp{nil} value the
@file{.cvsignore} will always be sorted whenever you use
@samp{cvs-mode-ignore} to add a file to it.  This option is on by
default.

@end table
@node     Future enhancements, Bugs, Customization, Top
@comment  node-name,  next,  previous,  up
@chapter Future enhancements
@cindex Enhancements

Pcl-cvs is still under development and needs a number of enhancements to
be called complete.  Below is my current wish-list for future releases
of pcl-cvs.  Please, let me know which of these features you want most.
They are listed below in approximately the order that I currently think
I will implement them in.

@itemize @bullet
@item
Rewritten parser code.  There are many situations where pcl-cvs will
fail to recognize the output from CVS.  The situation could be greatly
increased.

@item
@samp{cvs-status}.  This will run @samp{cvs status} in a directory and
produce a buffer that looks pretty much like the current *cvs* buffer.
That buffer will include information for all version-controlled files.
(There will be a simple keystroke to remove all "uninteresting" files,
that is, files that are "Up-to-date").  In this new buffer you will be
able to update a file, commit a file, et c.  The big win with this is
that you will be able to watch the differences between your current
working file and the head revision in the repository before you update
the file, and you can then choose to update it or let it wait for a
while longer.

@item
Log mode.  When this mode is finished you will be able to move around
(using @kbd{n} and @kbd{p}) between the revisions of a file, mark two of
them, and run a diff between them.  You will be able to hide branches
(similar to the way you can hide sub-paragraphs in outline-mode) and do
merges between revisions.  Other ideas about this are welcome.

@item
The current model for marks in the *cvs* buffer seems to be confusing.
I am considering to use the VM model instead, where marks are normally
inactive.  To activate the mark, you issue a command like
@samp{cvs-mode-next-command-uses-marks}.  I might implement a flag so
that you can use either version.  Feedback on this before I start coding
it is very welcome.

@item
It should be possible to run commands such as @samp{cvs log}, @samp{cvs
status} and @samp{cvs commit} directly from a buffer containing a file,
instead of having to @samp{cvs-update}.  If the directory contains many
files the @samp{cvs-update} can take quite some time, especially on a
slow machine.  I planed to put these kind of commands on the prefix
@kbd{C-c C-v}, but that turned out to be used by for instance c++-mode.
If you have any suggestions for a better prefix key, please let me know.

@item
Increased robustness.  For instance, you can not currently press
@kbd{C-g} when you are entering the description of a file that you are
adding without confusing pcl-cvs.

@item
Support for multiple active *cvs* buffers.

@item
Dired support.  I have an experimental @file{dired-cvs.el} that works
together with CVS 1.2.  Unfortunately I wrote it on top of a
non-standard @file{dired.el}, so it must be rewritten.@refill

@item
An ability to send user-supplied options to all the cvs commands.

@item
Pcl-cvs is not at all clever about what it should do when @samp{cvs
update} runs a program (due to the @samp{-u} option in the
@file{modules} file --- see @samp{cvs(5)}).  The current release uses a
regexp to search for the end.  At the very least that regexp should be
configured for different modules.  Tell me if you have any idea about
what is the right thing to do.  In a perfect world the program should
also be allowed to print to @samp{stderr} without causing pcl-cvs to
crash.
@end itemize


If you miss something in this wish-list, let me know!  I don't promise
that I will write it, but I will at least try to coordinate the efforts
of making a good Emacs front end to CVS.  See @xref{Bugs} for
information about how to reach me.@refill

So far, I have written most of pcl-cvs in my all-to-rare spare time. If
you want pcl-cvs to be developed faster you can write a contract with
Signum Support to do the extension.  You can reach Signum Support by
email to @samp{info@@signum.se} or via mail to Signum Support AB, Box
2044, S-580 02 Linkoping, Sweden. Phone: +46 (0) 13 - 21 46 00. Fax: +46
(0) 13 - 21 47 00.

@node   Bugs, Function and Variable Index, Future enhancements, Top
@comment  node-name,  next,  previous,  up
@chapter Bugs (known and unknown)
@cindex Reporting bugs and ideas
@cindex Bugs, how to report them
@cindex Author, how to reach
@cindex Email to the author
@cindex Known bugs
@cindex Bugs, known
@cindex FAQ
@cindex Problems, list of common

If you find a bug or misfeature, don't hesitate to tell me!  Send email
to @samp{ceder@@lysator.liu.se}.

If you have ideas for improvements, or if you have written some
extensions to this package, I would like to hear from you.  I hope that
you find this package useful!

Below is a partial list of currently known problems with pcl-cvs version
1.05.

@table @asis
@item Commit causes Emacs to hang
Emacs waits for the @samp{cvs commit} command to finish before you can
do anything.  If you start a background job from the loginfo file you
must take care that it closes @samp{stdout} and @samp{stderr} if you do
not want to wait for it.  (You do that with @samp{background-command &>-
2&>- &} if you are starting @samp{background-command} from a
@samp{/bin/sh} shell script).

Your emacs will also hang if there was a lock file in the repository.
In this case you can type @kbd{C-g} to get control over your emacs
again.

@item Name clash in Emacs 19
This is really a bug in Elib or the Emacs 19 distribution.  Both Elib and
Emacs 19.6 through at least 19.10 contains a file named
@file{cookie.el}.  One of the files will have to be renamed, and we are
currently negotiating about which of the files to rename.

@item Commands while cvs-update is running
It is possible to type commands in the *cvs* buffer while the update is
running, but error messages is all that you will get.  The error
messages should be better.

@item Unexpected output from CVS
Unexpected output from CVS confuses pcl-cvs.  It will currently create a
bug report that you can mail to me.  It should do something more
civilized.
@end table

@node Function and Variable Index, Concept Index, Bugs, Top
@comment    node-name,          next,       previous,  up
@unnumbered Function and Variable Index

@printindex fn

@node     Concept Index, Key Index, Function and Variable Index, Top
@comment      node-name, next,        previous,  up
@unnumbered Concept Index

@printindex cp

@node     Key Index,  , Concept Index, Top
@comment      node-name, next,        previous,  up
@unnumbered Key Index

@printindex ky

@summarycontents
@contents
@bye
