CVS2SVN(1) User Commands CVS2SVN(1)
cvs2svn - convert a cvs repository into a subversion repository
cvs2svn [OPTION]... OUTPUT-OPTION CVS-REPOS-PATH
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 reposi-
tory to which you only have remote access; see the FAQ for more infor-
mation. 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 par-
ent 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 com-
mand line. This option allows far more conversion flexibility
than can be achieved using the command-line alone. See the doc-
umentation 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
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 reposi-
tory 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.
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 repos-
itory. 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 reposi-
tory. 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
http://docs.python.org/lib/standard-encodings.html 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 spec-
ify a fallback encoding for filenames.) Default: disabled.
Transform RCS/CVS symbol names before entering them into Subver-
sion. 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, count-
ing 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 con-
verted, 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 con-
version. regexp must match the whole symbol name.
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'.
Prevent the creation of SVN commits that affect multiple
branches or trunk and a branch. Instead, break such changesets
into multiple commits, one per branch.
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) oth-
erwise. 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
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
Path to the cvs program. (cvs is needed if the --use-cvs option
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.
Print the usage message and exit with success.
Print the numbers and names of the conversion passes and exit
Print more information while running. This option may be speci-
fied twice to output voluminous debugging information.
Print less information while running. This option may be speci-
fied 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 <cmpilatoATcollab.net>
Greg Stein <gsteinATlyra.org>
Branko ibej <braneATxbc.nu>
Blair Zajac <blairATorcaware.com>
Max Bowsher <maxbATukf.net>
Brian Fitzpatrick <fitzATred-bean.com>
Tobias Ringstrm <tobiasATringstrom.nu>
Karl Fogel <kfogelATcollab.net>
Erik Hlsmann <e.huelsmannATgmx.net>
David Summers <davidATsummersoft.us>
Michael Haggerty <mhaggerATalum.edu>
Manpage was written for the Debian GNU/Linux system by Laszlo 'GCS'
Boszormenyi <gcsATlsc.hu> (but may be used by others).
cvs(1), svn(1), svnadmin(1)
Subversion Oct 24, 2004 CVS2SVN(1)