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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 committer.

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 file.



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, --profile,
--trunk-only, --encoding, and --fallback-encoding. Options are processed in the
order specified on the command line.


-s path, --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 repository.

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

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

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

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


Convert only trunk commits, not tags nor branches.

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
http://docs.python.org/lib/standard-encodings.html for a list of other standard

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.

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 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.

Treat empty subdirectories within the CVS repository as actual directories,
creating them when the parent directory is created and removing them if and when
the parent directory is pruned.

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).

Prevent the creation of commits that affect files on multiple branches at once.


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 '#').

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), 'tag' (treat every ambiguous symbol as a tag), or 'exclude' (do not
convert ambiguous symbols). The default is 'heuristic'.

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.)


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.

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-

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

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.

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.

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

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.)


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 CVS to extract revision contents. This option is slower than --use-internal-co
or --use-rcs.

Use RCS 'co' to extract revision contents. This option is faster than --use-cvs but
fails in some cases.


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

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


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

-p [start]:[end], --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 --tmpdir).


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.

--man Output the unix-style manpage for this program to standard output.

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

Prevent the deletion of temporary files.

Profile with 'cProfile' (into file cvs2svn.cProfile).

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