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       cvsgraph - A CVS/RCS repository grapher


       cvsgraph [options] [file]


       CvsGraph generates images and image maps from CVS/RCS repository files.


       -b     Deprecated, use -O’branch_dupbox=-1’ for same functionality.

       -c file
              Read alternate config from file.

       -d level
              Enable debug  mode  at  level.  The  amount  of  information  is
              determined  by  a  bitwise  or of the following: 1=config lexer,
              2=config parser, 4=rcsfile lexer, 8=rcsfile  parser,  16=rcsfile
              structure.  The  level  argument  may  be  in  decimal, octal or
              hexadecimal format.

       -h     A brief description of possible options.

       -i     Generate an image map instead of an image.

       -I file
              Also write an image map to file. This can be useful if you  want
              to generate both image and image map simultaneously. This halves
              the total time spent on accessing the repository file because it
              is parsed only once.
              However, keeping track of auto-generated files can be a bit of a
              hack if used in HTTP requests (unless you pass  both  image  and
              HTML file in one HTTP stream).
              Note  1:  most  time  is  used  for  the  image-drawing routines
              (actually libgd), so you might want to think twice in CGI  apps.
              Note 2: you can still use ’-o’ to specify an output file for the
              image.  And, if you also specify ’-i’, then you’ll get two image
              maps, for whatever purpose that might be.

       -k     Deprecated, use -O’auto_stretch=-1’ for same functionality.
              This function is not stable.

       -M name
              Deprecated,  use -O’map_name="AMapName"’ for same functionality.

       -m mod Use mod as the CVS module.  This option overrides  cvsmodule  in
              the configuration file.

       -O cfg_option=value[;opt=val[...]]
              Set  cfg_option  to  value.  Multiple  -O are allowed as well as
              multiple options can be set simultaneously  by  separating  them
              with  ’;’.  See cvsgraph.conf(5) for a detailed list of options.
              See also CONFIGURATION below.

       -o file
              Output to file. Otherwise, output is written to standard output.

       -q     Be quiet (i.e. no warnings)

       -r path
              Use  path as the CVS root.  This option overrides cvsroot in the
              configuration file.

       -s     Deprecated, use -O’strip_untagged=-1’ for same functionality.

       -S     Deprecated, use -O’strip_first_rev=-1’ for same functionality.

       -u     Deprecated, use -O’upside_down=-1’ for same functionality.

       -V     Print version and exit.

       -x {3,4,x}
              Set the HTML level of compliance for image maps. Use 3 for  HTML
              3.x,  4  for  HTML  4.x  and  x  for  XHTML. Default is HTML 3.x

       -[0-9] txt
              Use txt for expansion


       CvsGraph starts with reading a configuration file. If the  ’-c’  option
       is  given  on  the  command  line, then it is read. Otherwise, cvsgraph
       first looks for a configuration file in  the  current  directory  using
       ./cvsgraph.conf     and,     if    not    found,    tries    to    open
       /usr/local/etc/cvsgraph.conf. Defaults and command line overrides  will
       be  used  if  no  configuration  file  can be opened. The format of the
       configuration file  is  described  in  cvsgraph.conf(5).  Configuration
       parameters  entered on the command line have always precedence over the
       configuration  file.  Configuration  options  are  processed   in   the
       following order:
       - configuration file
       - ’-O’ command line options
       - other command line overrides (-bkMmrSsu)
       If  you do not want to process any configuration file, then you can set
       option ´-c /dev/null’, which will read an empty configuration file.

       The location of a repository file is determined  by  the  configuration
       parameters  cvsroot  and  cvsmodule  and  the  respective  command line
       options  ’-r’  and  ’-m’.   The  cvsroot,  cvsmodule   and   file   are
       concatenated  with  separating  ’/’  path-separators  forming the final
       No path-separator is  appended  if  cvsroot  and  cvsmodule  are  empty
       strings.  An  error  message  is issued if the resulting path cannot be
       opened.  Note that cvsgraph does not attempt to check any  validity  of
       the  path  components.  This  enables  a  user  to open any file on the
       file-system by setting cvsroot and cvsmodule to empty strings.
       For example, cvsgraph -r  -m  ../myfile,v would  try  to  open  the
       file  ../myfile,v.  Note that a variety of possibilities yield the same
       file and all have their advantages  and  drawbacks,  which  are  mostly
       related to the possible use of the parameters in text expansions.

       If  no  file  is  given  on  the  command line, then input is read from
       standard input.  This  can  make  expansion  strings  somewhat  strange
       looking,  but  they  are composed with the information available. If no
       input file was given, then the input filename for expansion is  set  to


       The  output  generated  by cvsgraph can be either an image (default) or
       and HTML image map (’-i’ and ’-I’ options).
       Images can have several formats, depending on the capabilities  of  the
       gd  library on which the drawing is built. The configuration allows for
       GIF, PNG or JPEG type images. Some recent versions of gd do  no  longer
       support  GIF  and PNG will be used instead. GIF support in gd was added
       again after the lzw patent expired.
       Generation of image  maps  conforms  to  the  HTML  standard  and  maps
       rectangular  regions  of  the  image  where  revisions and branches are
       drawn. Additionally, an extra rectangular region is  generated  between
       revisions to support diff generation.


              Configuration file read for default layout parameters.


       CvsGraph is written and maintained by B. Stultiens.
       Send  comments  and  bug  reports  to  (read the
       mailnote in the README file first) and visit the homepage at: