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       cvs2svn - convert a cvs repository into a subversion repository


       cvs2svn [OPTION]... --options=PATH


       Create  a new Subversion repository based on the version history stored
       in a CVS repository. Each CVS commit will be mirrored in the Subversion
       repository,  including such information as date of commit and id of the

       CVS-REPOS-PATH is the filesystem path of the part of the CVS repository
       that  you  want  to  convert.   It  is  not  possible  to convert a CVS
       repository to which you only have remote access; see the FAQ  for  more
       information.  This path doesn’t have to be the top level directory of a
       CVS repository; it can point at a project within a repository, in which
       case  only  that  project  will  be converted.  This path or one of its
       parent directories has to contain a subdirectory called CVSROOT (though
       the CVSROOT directory can be empty).

       Multiple  CVS  repositories  can  be converted into a single Subversion
       repository in a single run of cvs2svn, but only by using  an  --options


              Read  the  conversion  options  from  path  instead  of from the
              command  line.   This  option   allows   far   more   conversion
              flexibility  than  can be achieved using the command-line alone.
              See the documentation for more information.  Only the  following
              command-line  options are allowed in combination with --options:
              -h/--help, --help-passes, --version,  -v/--verbose,  -q/--quiet,
              -p/--pass/--passes, --dry-run, and --profile.


       -s, --svnrepos path
              Write  the output of the conversion into a Subversion repository
              located at path.  This option causes a new Subversion repository
              to  be  created at path unless the --existing-svnrepos option is
              also used.

              Load the converted CVS repository into  an  existing  Subversion
              repository,  instead of creating a new repository.  (This option
              should  be  used  in  combination  with   -s/--svnrepos.)    The
              repository must either be empty or contain no paths that overlap
              with those that will result from the  conversion.   Please  note
              that you need write permission for the repository files.

              Pass  --fs-type=type  to  "svnadmin  create" when creating a new

              Pass --bdb-txn-nosync to "svnadmin create" when creating  a  new
              BDB-style Subversion repository.

              Pass  opt  to  "svnadmin  create" when creating a new Subversion
              repository (can be specified multiple  times  to  pass  multiple

              Just  produce  a  dumpfile;  don’t  commit to an SVN repository.
              Write the dumpfile to path.

              Do not create a repository or a dumpfile; just print the details
              of  what  cvs2svn  would  do  if  it were really converting your


              Convert only trunk commits, not tags nor branches.

              Set the top-level path  to  use  for  trunk  in  the  Subversion
              repository.  The default is trunk.

              Set  the  top-level  path  to use for branches in the Subversion
              repository.  The default is branches.

              Set the top-level  path  to  use  for  tags  in  the  Subversion
              repository.  The default is tags.

              When  all  files  are deleted from a directory in the Subversion
              repository, don’t delete the empty directory (the default is  to
              delete any empty directories.

              Use  encoding  as  the encoding for filenames, log messages, and
              author names in the CVS repos.  This  option  may  be  specified
              multiple  times,  in which case the encodings are tried in order
              until     one     succeeds.       Default:      ascii.       See
     for a list of
              other standard encodings.

              If none of the encodings specified with  --encoding  succeed  in
              decoding  an author name or log message, then fall back to using
              encoding in lossy ’replace’ mode.  Use of this option may  cause
              information to be lost, but at least it allows the conversion to
              run to completion.  This option only affects the encoding of log
              messages  and  author  names;  there is no fallback encoding for
              filenames.  (By using an  --options  file,  it  is  possible  to
              specify  a fallback encoding for filenames.)  Default: disabled.

              Transform  RCS/CVS  symbol  names  before  entering  them   into
              Subversion.   pattern is a Python regexp pattern that is matches
              against the entire symbol name;  replacement  is  a  replacement
              using  Python’s  regexp  reference  syntax.  You may specify any
              number of these options; they will be applied in the order given
              on the command line.

              Read  symbol  conversion hints from path.  The format of path is
              the same as the format output by --write-symbol-info,  namely  a
              text  file  with  four whitespace-separated columns: project-id,
              symbol, conversion,  and  parent-lod-name.   project-id  is  the
              numerical  ID  of  the  project  to  which  the  symbol belongs,
              counting from 0.  project-id can  be  set  to  ’.’  if  project-
              specificity  is  not  needed.   symbol-name  is  the name of the
              symbol being specified.  conversion  specifies  how  the  symbol
              should  be  converted,  and  can  be one of the values ’branch’,
              ’tag’, or ’exclude’.  If conversion is ’.’, then this rule  does
              not  affect how the symbol is converted.  parent-lod-name is the
              name of the symbol from which  this  symbol  should  sprout,  or
              ’.trunk.’  if  the  symbol should sprout from trunk.  If parent-
              lod-name is omitted or ’.’, then this rule does not  affect  the
              preferred  parent  of  this  symbol.  The file may contain blank
              lines  or  comment  lines  (lines  whose  first   non-whitespace
              character is ’#’).

              Force  symbols  whose names match regexp to be branches.  regexp
              must match the whole symbol name.

              Force symbols whose names match regexp to be tags.  regexp  must
              match the whole symbol name.

              Exclude  branches  and  tags  whose  names match regexp from the
              conversion.  regexp must match the whole symbol name.

              Do not exclude branches that were only used for a single import.
              (By  default such branches are excluded because they are usually
              created by the inappropriate use of cvs import.)

              Specify how to convert ambiguous symbols (those that  appear  in
              the  CVS  archive  as  both  branches  and  tags).   opt must be
              ‘heuristic’ (decide how to treat each ambiguous symbol based  on
              whether it was used more often as a branch/tag in CVS), ‘strict’
              (no default; every ambiguous symbol has to be resolved  manually
              using   --force-branch,  --force-tag,  or  --exclude),  ‘branch’
              (treat every ambiguous symbol as  a  branch),  or  ‘tag’  (treat
              every ambiguous symbol as a tag).  The default is ‘heuristic’.

              Include  .cvsignore  files  in  the  output.  (Normally they are
              unneeded  because  cvs2svn  sets  the  corresponding  svn:ignore

              If  a  file  appears  both  inside  an outside of the CVS attic,
              retain the attic version in an SVN subdirectory called  ‘Attic’.
              (Normally this situation is treated as a fatal error.)

              Set  the default username to name when cvs2svn needs to generate
              a commit for which CVS does not record  the  original  username.
              This happens when a branch or tag is created.  The default is to
              use no author at all for such commits.

              Record CVS revision numbers as file properties in the Subversion
              repository.   (Note  that  unless  it is removed explicitly, the
              last CVS revision number will remain associated  with  the  file
              even after the file is changed within Subversion.)

              Specify  an  apache-style  mime.types file for setting svn:mime-

              For files that don’t have the kb expansion mode but have a known
              mime  type,  set the eol-style based on the mime type.  For such
              files, set svn:eol-style to "native" if  the  mime  type  begins
              with  "text/",  and  leave  it  unset (i.e., no EOL translation)
              otherwise.  Files with unknown mime types are  not  affected  by
              this  option.  This option has no effect unless the --mime-types
              option is also specified.

              Specify a file in the format of Subversion’s config file,  whose
              [auto-props]  section can be used to set arbitrary properties on
              files in the Subversion repository  based  on  their  filenames.
              (The [auto-props] section header must be present; other sections
              of the config file, including the enable-auto-props setting, are
              ignored.)   Filenames are matched to the filename patterns case-

              Set svn:eol-style to style for files that  don’t  have  the  CVS
              ‘kb’  expansion  mode  and  whose  end-of-line  translation mode
              hasn’t been determined by one of the other options.  style  must
              be ‘binary’ (default), ‘native’, ‘CRLF’, ‘LF’, or ‘CR’.

              By default, cvs2svn sets svn:keywords on CVS files to "author id
              date" if the mode of the RCS file in question is either kv,  kvl
              or  unset.   If  you use the --keywords-off switch, cvs2svn will
              not set svn:keywords for any file.  While this  will  not  touch
              the  keywords in the contents of your files, Subversion will not
              expand them.


              Use internal code to extract revision contents.  This is  up  to
              50%  faster than using --use-rcs, but needs a lot of disk space:
              Roughly the size of your CVS repository plus the peak size of  a
              complete  checkout  of  the  repository  with  all branches that
              existed and still had commits pending at  a  given  time.   This
              option is the default.

              Use RCS ’co’ to extract revision contents.

              Use  CVS  to  extract revision contents (only use this if having
              problems with --use-internal-co or --use-rcs, as  those  options
              are much faster).


              Set  the path to use for temporary data.  Default is a directory
              called cvs2svn-tmp under the current directory.

              Path to the svnadmin program.   (svnadmin  is  needed  when  the
              -s/--svnrepos output option is used.)

              Path  to  the co program.  (co is needed if the --use-rcs option
              is used.)

              Path to the cvs program.  (cvs is needed if the --use-cvs option
              is used.)

              Path to the GNU sort program.  (cvs2svn requires GNU sort.)


       -p, --pass pass
              Execute only pass pass of the conversion.  pass can be specified
              by name or by number (see --help-passes).

       -p, --passes [start]:[end]
              Execute passes start through end of the conversion  (inclusive).
              start and end can be specified by name or by number (see --help-
              passes).  If start or end is missing, it defaults to  the  first
              or last pass, respectively.  For this to work the earlier passes
              must have been completed before on the same CVS repository,  and
              the generated data files must be in the temporary directory (see


              Print the version number.

       -h, --help
              Print the usage message and exit with success.

              Print the numbers and names of the conversion  passes  and  exit
              with success.

       -v, --verbose
              Print  more  information  while  running.   This  option  may be
              specified twice to output voluminous debugging information.

       -q, --quiet
              Print less  information  while  running.   This  option  may  be
              specified twice to suppress all non-error output.

              Write  symbol  statistics and information about how symbols were
              converted to path during CollateSymbolsPass.

              Prevent the deletion of temporary files.

              Profile with ’hotshot’ (into file cvs2svn.hotshot).


       A directory called cvs2svn-tmp (or the directory specified by --tmpdir)
       is used as scratch space for temporary data files.


       Main authors are:
       C. Michael Pilato <>
       Greg Stein <>
       Branko Èibej <>
       Blair Zajac <>
       Max Bowsher <>
       Brian Fitzpatrick <>
       Tobias Ringström <>
       Karl Fogel <>
       Erik Hülsmann <>
       David Summers <>
       Michael Haggerty <>

       Manpage  was  written  for  the Debian GNU/Linux system by Laszlo ’GCS’
       Boszormenyi <> (but may be used by others).


       cvs(1), svn(1), svnadmin(1)