2 .\" Title: git-cvsimport
3 .\" Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
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7 .\" Source: Git 2.41.0.rc0.4.g004e0f790f
10 .TH "GIT\-CVSIMPORT" "1" "2023\-05\-17" "Git 2\&.41\&.0\&.rc0\&.4\&.g00" "Git Manual"
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31 git-cvsimport \- Salvage your data out of another SCM people love to hate
35 \fIgit cvsimport\fR [\-o <branch\-for\-HEAD>] [\-h] [\-v] [\-d <CVSROOT>]
36 [\-A <author\-conv\-file>] [\-p <options\-for\-cvsps>] [\-P <file>]
37 [\-C <git\-repository>] [\-z <fuzz>] [\-i] [\-k] [\-u] [\-s <subst>]
38 [\-a] [\-m] [\-M <regex>] [\-S <regex>] [\-L <commit\-limit>]
39 [\-r <remote>] [\-R] [<CVS\-module>]
44 \fBWARNING:\fR \fBgit cvsimport\fR uses cvsps version 2, which is considered deprecated; it does not work with cvsps version 3 and later\&. If you are performing a one\-shot import of a CVS repository consider using \m[blue]\fBcvs2git\fR\m[]\&\s-2\u[1]\d\s+2 or \m[blue]\fBcvs\-fast\-export\fR\m[]\&\s-2\u[2]\d\s+2\&.
46 Imports a CVS repository into Git\&. It will either create a new repository, or incrementally import into an existing one\&.
48 Splitting the CVS log into patch sets is done by \fIcvsps\fR\&. At least version 2\&.1 is required\&.
50 \fBWARNING:\fR for certain situations the import leads to incorrect results\&. Please see the section ISSUES for further reference\&.
52 You should \fBnever\fR do any work of your own on the branches that are created by \fIgit cvsimport\fR\&. By default initial import will create and populate a "master" branch from the CVS repository\(cqs main branch which you\(cqre free to work with; after that, you need to \fIgit merge\fR incremental imports, or any CVS branches, yourself\&. It is advisable to specify a named remote via \-r to separate and protect the incoming branches\&.
54 If you intend to set up a shared public repository that all developers can read/write, or if you want to use \fBgit-cvsserver\fR(1), then you probably want to make a bare clone of the imported repository, and use the clone as the shared repository\&. See \fBgitcvs-migration\fR(7)\&.
61 report what it is doing\&.
66 The root of the CVS archive\&. May be local (a simple path) or remote; currently, only the :local:, :ext: and :pserver: access methods are supported\&. If not given,
68 will try to read it from
69 \fBCVS/Root\fR\&. If no such file exists, it checks for the
71 environment variable\&.
76 The CVS module you want to import\&. Relative to <CVSROOT>\&. If not given,
79 \fBCVS/Repository\fR\&.
84 The Git repository to import to\&. If the directory doesn\(cqt exist, it will be created\&. Default is the current directory\&.
89 The Git remote to import this CVS repository into\&. Moves all CVS branches into remotes/<remote>/<branch> akin to the way
96 \-o <branch\-for\-HEAD>
98 When no remote is specified (via \-r) the
100 branch from CVS is imported to the
102 branch within the Git repository, as
104 already has a special meaning for Git\&. When a remote is specified the
106 branch is named remotes/<remote>/master mirroring
108 behaviour\&. Use this option if you want to import into a different branch\&.
112 for continuing an import that was initially done by the old cvs2git tool\&.
117 Import\-only: don\(cqt perform a checkout after importing\&. This option ensures the working directory and index remain untouched and will not create them if they do not exist\&.
122 Kill keywords: will extract files with
124 from the CVS archive to avoid noisy changesets\&. Highly recommended, but off by default to preserve compatibility with early imported trees\&.
129 Convert underscores in tag and branch names to dots\&.
134 Substitute the character "/" in branch names with <subst>
137 \-p <options\-for\-cvsps>
139 Additional options for cvsps\&. The options
143 are implicit and should not be used here\&.
145 If you need to pass multiple options, separate them with a comma\&.
150 Pass the timestamp fuzz factor to cvsps, in seconds\&. If unset, cvsps defaults to 300s\&.
153 \-P <cvsps\-output\-file>
155 Instead of calling cvsps, read the provided cvsps output file\&. Useful for debugging or when cvsps is being handled outside cvsimport\&.
160 Attempt to detect merges based on the commit message\&. This option will enable default regexes that try to capture the source branch name from the commit message\&.
165 Attempt to detect merges based on the commit message with a custom regex\&. It can be used with
167 to enable the default regexes as well\&. You must escape forward slashes\&.
169 The regex must capture the source branch name in $1\&.
171 This option can be used several times to provide several detection regexes\&.
176 Skip paths matching the regex\&.
181 Import all commits, including recent ones\&. cvsimport by default skips commits that have a timestamp less than 10 minutes ago\&.
186 Limit the number of commits imported\&. Workaround for cases where cvsimport leaks memory\&.
189 \-A <author\-conv\-file>
191 CVS by default uses the Unix username when writing its commit logs\&. Using this option and an author\-conv\-file maps the name recorded in CVS to author name, e\-mail and optional time zone:
197 exon=Andreas Ericsson <ae@op5\&.se>
198 spawn=Simon Pawn <spawn@frog\-pond\&.org> America/Chicago
205 will make it appear as those authors had their GIT_AUTHOR_NAME and GIT_AUTHOR_EMAIL set properly all along\&. If a time zone is specified, GIT_AUTHOR_DATE will have the corresponding offset applied\&.
207 For convenience, this data is saved to
208 \fB$GIT_DIR/cvs\-authors\fR
211 option is provided and read from that same file each time
215 It is not recommended to use this feature if you intend to export changes back to CVS again later with
216 \fIgit cvsexportcommit\fR\&.
222 \fB$GIT_DIR/cvs\-revisions\fR
223 file containing a mapping from CVS revision numbers to newly\-created Git commit IDs\&. The generated file will contain one line for each (filename, revision) pair imported; each line will look like
229 src/widget\&.c 1\&.1 1d862f173cdc7325b6fa6d2ae1cfd61fd1b512b7
235 The revision data is appended to the file if it already exists, for use when doing incremental imports\&.
237 This option may be useful if you have CVS revision numbers stored in commit messages, bug\-tracking systems, email archives, and the like\&.
242 Print a short usage message and exit\&.
246 If \fB\-v\fR is specified, the script reports what it is doing\&.
248 Otherwise, success is indicated the Unix way, i\&.e\&. by simply exiting with a zero exit status\&.
251 Problems related to timestamps:
261 If timestamps of commits in the CVS repository are not stable enough to be used for ordering commits changes may show up in the wrong order\&.
272 If any files were ever "cvs import"ed more than once (e\&.g\&., import of more than one vendor release) the HEAD contains the wrong content\&.
283 If the timestamp order of different files cross the revision order within the commit matching time window the order of commits may be wrong\&.
286 Problems related to branches:
296 Branches on which no commits have been made are not imported\&.
307 All files from the branching point are added to a branch even if never added in CVS\&.
318 This applies to files added to the source branch
320 a daughter branch was created: if previously no commit was made on the daughter branch they will erroneously be added to the daughter branch in git\&.
323 Problems related to tags:
333 Multiple tags on the same revision are not imported\&.
336 If you suspect that any of these issues may apply to the repository you want to import, consider using cvs2git:
346 cvs2git (part of cvs2svn),
347 \fBhttp://subversion\&.apache\&.org/\fR
351 Part of the \fBgit\fR(1) suite
356 \%http://cvs2svn.tigris.org/cvs2git.html
361 \%http://www.catb.org/esr/cvs-fast-export/