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CVSUTILS(1)							   CVSUTILS(1)

       cvsutils - CVS utilities for use in working directories

       cvsu [options]
       cvsco  [ options ]
       cvsdiscard  [ options ]
       cvspurge	 [ options ]
       cvstrim	[ options ]
       cvschroot  [ options ]
       cvsdo  [ options ]

       The  idea  of  cvsutils	is to facilitate working with the files in the
       working directory of a developer using CVS  (Concurrent	Versions  Sys‐

       From  the  point	 of  view  of CVS, working directories have low value,
       since they can easily be recreated  using  the  cvs  checkout  command.
       Also  the  cvs  update  command will show the status of the files, i.e.
       whether they have been modified, added or removed.

       CVS in it's current state is a client-server system that does  most  of
       its  work  on the server side. CVS provides only few (if any) means for
       managing the working directory without communicating with the server.

       There are, however, several reasons why such means are necessary:

       *      There is enough information on the client side  to  create  fast
	      tools for sorting and purging the working directory without con‐
	      tacting the CVS server.

       *      Checking out a big module over a slow line  can  take  too  much

       *      There should be support for disconnected operations.

       *      CVS  poses  certain unnecessary restrictions on read-only users,
	      e.g.  cvs add command doesn't work for them.

       cvsu is "cvs update offline". It lists the files found in  the  current
       directory (or in the directories which you specify). Following is taken
       into account:

       *      Attributes of the file.

       *      Information about the file in CVS/Entries.

       *      Timestamp of the	file  compared	to  the	 timestamp  stored  in

       Run  cvsu --help to see supported command line options. The options can
       be abbreviated.	This functionality is provided by Perl, and  can  vary
       from one machine to another.

       cvsco is a "cruel checkout". In other words, it removes results of com‐
       pilation and discards local changes. It deletes all  the	 files	except
       listed  unmodified  ones	 and  checks  out everything which seems to be
       missing.	 Please note, that cvsco doesn't update	 files	which  haven't
       been modified locally. It only reloads missing files and files which it

       cvsdiscard is "discard my changes". In other words, it  discards	 local
       changes	but  keeps results of compilation. It works like cvsco, but it
       only deletes files which are likely to cause merge conflicts.

       cvspurge leaves all files known to CVS, but removes the	rest.	Unlike
       cvsco,  it  doesn't  remove  local changes.  It is useful to test local
       changes in the otherwise clean source tree.

       cvstrim removes files and directories unknown to CVS. Files  listed  in
       .cvsignore  are	not  removed. The idea is to remove the files that are
       not resulted from the normal build process -  backups,  coredumps  etc.
       cvstrim relies on .cvsignore files being correct. Note that the backups
       for modified files are removed.

       cvschroot makes it possible to change CVS/Root in all subdirectories to
       the  given  value. Currently the only argument accepted is the new CVS‐
       ROOT value.  Old-style CVS/Repository files that contain the full  path
       to  the	repository  are	 updated  to  reflect  the  change.  New-style
       CVS/Repository don't need to be changed. If  the	 environment  variable
       CVSROOT	is  defined,  it  overrides the contents of CVS/Root. In other
       words, it is treated as the old CVS root.

       cvsdo simulates some of the CVS commands	 (currently  add,  remove  and
       diff)  without  any access to the CVS server. Using cvsdo add and cvsdo
       remove allows you to create diffs with cvs diff -N, and all removed and
       added  files  will appear in the diff correctly, as if you had used cvs
       add and cvs remove respectively.

       cvsdo diff tries to locate the backup copies of the modified files.  If
       they  can  be  found,  they are compared with the current version using
       diff.  Only those backup copies are used	 that  have  the  modification
       date equal the date listed in CVS/Entries for the modified file.	 cvsdo
       diff patches the diff output to make it more robust to apply. An excep‐
       tion  is	 made  for files named "ChangeLog" - in this case diff will be
       instructed to omit all context lines, so that the patch can be  applied
       even  if	 other	changes	 have  been written to the ChangeLog. Also the
       added files are handled properly. The header  of	 the  diff  output  is
       patched in such way that at least GNU patch will create a new file when
       the resulting patch is applied and remove that file when the  patch  is

       cvsutils is covered by the GNU General Public License (GPL).

       cvs(1), cvs2cl(1).

       This  manual  page was written by Uwe Hermann <>, for the
       Debian GNU/Linux system (but may be used by others).

			       February 27, 2002		   CVSUTILS(1)
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