NAME
----
-git-svn - bidirectional operation between a single Subversion branch and git
+git-svn - Bidirectional operation between a single Subversion branch and git
SYNOPSIS
--------
DESCRIPTION
-----------
-git-svn is a simple conduit for changesets between a single Subversion
-branch and git. It is not to be confused with gitlink:git-svnimport[1].
-They were designed with very different goals in mind.
+git-svn is a simple conduit for changesets between Subversion and git.
+It is not to be confused with gitlink:git-svnimport[1], which is
+read-only and geared towards tracking multiple branches.
-git-svn is designed for an individual developer who wants a
+git-svn was originally designed for an individual developer who wants a
bidirectional flow of changesets between a single branch in Subversion
-and an arbitrary number of branches in git. git-svnimport is designed
-for read-only operation on repositories that match a particular layout
-(albeit the recommended one by SVN developers).
+and an arbitrary number of branches in git. Since its inception,
+git-svn has gained the ability to track multiple branches in a manner
+similar to git-svnimport; but it cannot (yet) automatically detect new
+branches and tags like git-svnimport does.
-For importing svn, git-svnimport is potentially more powerful when
-operating on repositories organized under the recommended
-trunk/branch/tags structure, and should be faster, too.
-
-git-svn mostly ignores the very limited view of branching that
-Subversion has. This allows git-svn to be much easier to use,
-especially on repositories that are not organized in a manner that
-git-svnimport is designed for.
+git-svn is especially useful when it comes to tracking repositories
+not organized in the way Subversion developers recommend (trunk,
+branches, tags directories).
COMMANDS
--------
command (see below) to write git commits back to
remotes/git-svn.
-See '<<fetch-args,Additional Fetch Arguments>>' if you are interested in
-manually joining branches on commit.
-
'dcommit'::
- Commit all diffs from a specified head directly to the SVN
+ Commit each diff from a specified head directly to the SVN
repository, and then rebase or reset (depending on whether or
- not there is a diff between SVN and head). It is recommended
- that you run git-svn fetch and rebase (not pull) your commits
- against the latest changes in the SVN repository.
+ not there is a diff between SVN and head). This will create
+ a revision in SVN for each commit in git.
+ It is recommended that you run git-svn fetch and rebase (not
+ pull or merge) your commits against the latest changes in the
+ SVN repository.
An optional command-line argument may be specified as an
alternative to HEAD.
- This is advantageous over 'commit' (below) because it produces
+ This is advantageous over 'set-tree' (below) because it produces
cleaner, more linear history.
'log'::
Any other arguments are passed directly to `git log'
-'commit'::
+'set-tree'::
You should consider using 'dcommit' instead of this command.
Commit specified commit or tree objects to SVN. This relies on
your imported fetch data being up-to-date. This makes
commit. All merging is assumed to have taken place
independently of git-svn functions.
-'rebuild'::
- Not a part of daily usage, but this is a useful command if
- you've just cloned a repository (using gitlink:git-clone[1]) that was
- tracked with git-svn. Unfortunately, git-clone does not clone
- git-svn metadata and the svn working tree that git-svn uses for
- its operations. This rebuilds the metadata so git-svn can
- resume fetch operations. A Subversion URL may be optionally
- specified at the command-line if the directory/repository you're
- tracking has moved or changed protocols.
-
'show-ignore'::
Recursively finds and lists the svn:ignore property on
directories. The output is suitable for appending to
'commit-diff'::
Commits the diff of two tree-ish arguments from the
- command-line. This command is intended for interopability with
+ command-line. This command is intended for interoperability with
git-svnimport and does not rely on being inside an git-svn
init-ed repository. This command takes three arguments, (a) the
original tree to diff against, (b) the new tree result, (c) the
'multi-init'::
This command supports git-svnimport-like command-line syntax for
- importing repositories that are layed out as recommended by the
+ importing repositories that are laid out as recommended by the
SVN folks. This is a bit more tolerant than the git-svnimport
command-line syntax and doesn't require the user to figure out
where the repository URL ends and where the repository path
begins.
+-T<trunk_subdir>::
+--trunk=<trunk_subdir>::
+-t<tags_subdir>::
+--tags=<tags_subdir>::
+-b<branches_subdir>::
+--branches=<branches_subdir>::
+ These are the command-line options for multi-init. Each of
+ these flags can point to a relative repository path
+ (--tags=project/tags') or a full url
+ (--tags=https://foo.org/project/tags)
+
+--prefix=<prefix>
+ This allows one to specify a prefix which is prepended to the
+ names of remotes. The prefix does not automatically include a
+ trailing slash, so be sure you include one in the argument if
+ that is what you want. This is useful if you wish to track
+ multiple projects that share a common repository.
+
'multi-fetch'::
This runs fetch on all known SVN branches we're tracking. This
will NOT discover new branches (unlike git-svnimport), so
--shared::
--template=<template_directory>::
Only used with the 'init' command.
- These are passed directly to gitlink:git-init-db[1].
+ These are passed directly to gitlink:git-init[1].
-r <ARG>::
--revision <ARG>::
-::
--stdin::
-Only used with the 'commit' command.
+Only used with the 'set-tree' command.
Read a list of commits from stdin and commit them in reverse
order. Only the leading sha1 is read from each line, so
--rmdir::
-Only used with the 'dcommit', 'commit' and 'commit-diff' commands.
+Only used with the 'dcommit', 'set-tree' and 'commit-diff' commands.
Remove directories from the SVN tree if there are no files left
behind. SVN can version empty directories, and they are not
cannot version empty directories. Enabling this flag will make
the commit to SVN act like git.
-repo-config key: svn.rmdir
+config key: svn.rmdir
-e::
--edit::
-Only used with the 'dcommit', 'commit' and 'commit-diff' commands.
+Only used with the 'dcommit', 'set-tree' and 'commit-diff' commands.
Edit the commit message before committing to SVN. This is off by
default for objects that are commits, and forced on when committing
tree objects.
-repo-config key: svn.edit
+config key: svn.edit
-l<num>::
--find-copies-harder::
-Only used with the 'dcommit', 'commit' and 'commit-diff' commands.
+Only used with the 'dcommit', 'set-tree' and 'commit-diff' commands.
They are both passed directly to git-diff-tree see
gitlink:git-diff-tree[1] for more information.
[verse]
-repo-config key: svn.l
-repo-config key: svn.findcopiesharder
+config key: svn.l
+config key: svn.findcopiesharder
-A<filename>::
--authors-file=<filename>::
appropriate entry. Re-running the previous git-svn command
after the authors-file is modified should continue operation.
-repo-config key: svn.authorsfile
+config key: svn.authorsfile
-q::
--quiet::
- Make git-svn less verbose. This only affects git-svn if you
- have the SVN::* libraries installed and are using them.
+ Make git-svn less verbose.
--repack[=<n>]::
--repack-flags=<flags>
--repack-flags are passed directly to gitlink:git-repack[1].
-repo-config key: svn.repack
-repo-config key: svn.repackflags
+config key: svn.repack
+config key: svn.repackflags
-m::
--merge::
-b<refname>::
--branch <refname>::
-Used with 'fetch', 'dcommit' or 'commit'.
+Used with 'fetch', 'dcommit' or 'set-tree'.
This can be used to join arbitrary git branches to remotes/git-svn
on new commits where the tree object is equivalent.
This option may be specified multiple times, once for each
branch.
-repo-config key: svn.branch
+config key: svn.branch
-i<GIT_SVN_ID>::
--id <GIT_SVN_ID>::
'<<tracking-multiple-repos,Tracking Multiple Repositories or Branches>>'
for more information on using GIT_SVN_ID.
+-R<remote name>::
+--svn-remote <remote name>::
+ Specify the [svn-remote "<remote name>"] section to use,
+ this allows multiple repositories to be tracked.
+ Default: git-svn
+
--follow-parent::
This is especially helpful when we're tracking a directory
that has been moved around within the repository, or if we
started tracking a branch and never tracked the trunk it was
- descended from.
-
- This relies on the SVN::* libraries to work.
+ descended from. This feature is enabled by default, use
+ --no-follow-parent to disable it.
-repo-config key: svn.followparent
+config key: svn.followparent
---no-metadata::
+svn.noMetadata:
+svn-remote.<name>.noMetadata:
This gets rid of the git-svn-id: lines at the end of every commit.
- With this, you lose the ability to use the rebuild command. If
- you ever lose your .git/svn/git-svn/.rev_db file, you won't be
- able to fetch again, either. This is fine for one-shot imports.
+ If you lose your .git/svn/git-svn/.rev_db file, git-svn will not
+ be able to rebuild it and you won't be able to fetch again,
+ either. This is fine for one-shot imports.
- The 'git-svn log' command will not work on repositories using this,
- either.
-
-repo-config key: svn.nometadata
-
---
-
-COMPATIBILITY OPTIONS
----------------------
---
+ The 'git-svn log' command will not work on repositories using
+ this, either. Using this conflicts with the 'useSvmProps'
+ option for (hopefully) obvious reasons.
---upgrade::
-Only used with the 'rebuild' command.
+svn.useSvmProps:
+svn-remote.<name>.useSvmProps:
+ This allows git-svn to re-map repository URLs and UUIDs from
+ mirrors created using SVN::Mirror (or svk) for metadata.
-Run this if you used an old version of git-svn that used
-"git-svn-HEAD" instead of "remotes/git-svn" as the branch
-for tracking the remote.
+ If an SVN revision has a property, "svm:headrev", it is likely
+ that the revision was created by SVN::Mirror (also used by SVK).
+ The property contains a repository UUID and a revision. We want
+ to make it look like we are mirroring the original URL, so
+ introduce a helper function that returns the original identity
+ URL and UUID, and use it when generating metadata in commit
+ messages.
---no-ignore-externals::
-Only used with the 'fetch' and 'rebuild' command.
-
-This command has no effect when you are using the SVN::*
-libraries with git, svn:externals are always avoided.
-
-By default, git-svn passes --ignore-externals to svn to avoid
-fetching svn:external trees into git. Pass this flag to enable
-externals tracking directly via git.
-
-Versions of svn that do not support --ignore-externals are
-automatically detected and this flag will be automatically
-enabled for them.
-
-Otherwise, do not enable this flag unless you know what you're
-doing.
-
-repo-config key: svn.noignoreexternals
-
---ignore-nodate::
-Only used with the 'fetch' command.
-
-By default git-svn will crash if it tries to import a revision
-from SVN which has '(no date)' listed as the date of the revision.
-This is repository corruption on SVN's part, plain and simple.
-But sometimes you really need those revisions anyway.
-
-If supplied git-svn will convert '(no date)' entries to the UNIX
-epoch (midnight on Jan. 1, 1970). Yes, that's probably very wrong.
-SVN was very wrong.
+ Using this conflicts with the 'noMetadata' option for
+ (hopefully) obvious reasons.
--
Basic Examples
~~~~~~~~~~~~~~
-Tracking and contributing to a Subversion-managed project:
+Tracking and contributing to a the trunk of a Subversion-managed project:
------------------------------------------------------------------------
-# Initialize a repo (like git init-db):
+# Initialize a repo (like git init):
git-svn init http://svn.foo.org/project/trunk
# Fetch remote revisions:
git-svn fetch
git-svn show-ignore >> .git/info/exclude
------------------------------------------------------------------------
-REBASE VS. PULL
----------------
+Tracking and contributing to an entire Subversion-managed project
+(complete with a trunk, tags and branches):
+See also:
+'<<tracking-multiple-repos,Tracking Multiple Repositories or Branches>>'
+
+------------------------------------------------------------------------
+# Initialize a repo (like git init):
+ git-svn multi-init http://svn.foo.org/project \
+ -T trunk -b branches -t tags
+# Fetch remote revisions:
+ git-svn multi-fetch
+# Create your own branch of trunk to hack on:
+ git checkout -b my-trunk remotes/trunk
+# Do some work, and then commit your new changes to SVN, as well as
+# automatically updating your working HEAD:
+ git-svn dcommit -i trunk
+# Something has been committed to trunk, rebase the latest into your branch:
+ git-svn multi-fetch && git rebase remotes/trunk
+# Append svn:ignore settings of trunk to the default git exclude file:
+ git-svn show-ignore -i trunk >> .git/info/exclude
+# Check for new branches and tags (no arguments are needed):
+ git-svn multi-init
+------------------------------------------------------------------------
+
+REBASE VS. PULL/MERGE
+---------------------
Originally, git-svn recommended that the remotes/git-svn branch be
-pulled from. This is because the author favored 'git-svn commit B'
-to commit a single head rather than the 'git-svn commit A..B' notation
-to commit multiple commits.
+pulled or merged from. This is because the author favored
+'git-svn set-tree B' to commit a single head rather than the
+'git-svn set-tree A..B' notation to commit multiple commits.
-If you use 'git-svn commit A..B' to commit several diffs and you do not
-have the latest remotes/git-svn merged into my-branch, you should use
-'git rebase' to update your work branch instead of 'git pull'. 'pull'
-can cause non-linear history to be flattened when committing into SVN,
-which can lead to merge commits reversing previous commits in SVN.
+If you use 'git-svn set-tree A..B' to commit several diffs and you do
+not have the latest remotes/git-svn merged into my-branch, you should
+use 'git rebase' to update your work branch instead of 'git pull' or
+'git merge'. 'pull/merge' can cause non-linear history to be flattened
+when committing into SVN, which can lead to merge commits reversing
+previous commits in SVN.
DESIGN PHILOSOPHY
-----------------
remotes/$GIT_SVN_ID branch should never be modified by the user outside
of git-svn commands.
-[[fetch-args]]
-ADDITIONAL FETCH ARGUMENTS
---------------------------
-This is for advanced users, most users should ignore this section.
-
-Unfetched SVN revisions may be imported as children of existing commits
-by specifying additional arguments to 'fetch'. Additional parents may
-optionally be specified in the form of sha1 hex sums at the
-command-line. Unfetched SVN revisions may also be tied to particular
-git commits with the following syntax:
-
-------------------------------------------------
- svn_revision_number=git_commit_sha1
-------------------------------------------------
-
-This allows you to tie unfetched SVN revision 375 to your current HEAD:
-
-------------------------------------------------
- git-svn fetch 375=$(git-rev-parse HEAD)
-------------------------------------------------
-
-Advanced Example: Tracking a Reorganized Repository
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Note: this example is now obsolete if you have SVN::* libraries
-installed. Simply use --follow-parent when fetching.
-
If you're tracking a directory that has moved, or otherwise been
branched or tagged off of another directory in the repository and you
-care about the full history of the project, then you can read this
-section.
-
-This is how Yann Dirson tracked the trunk of the ufoai directory when
-the /trunk directory of his repository was moved to /ufoai/trunk and
-he needed to continue tracking /ufoai/trunk where /trunk left off.
+care about the full history of the project, then you can use
+the --follow-parent option.
-------------------------------------------------------------------------
- # This log message shows when the repository was reorganized:
- r166 | ydirson | 2006-03-02 01:36:55 +0100 (Thu, 02 Mar 2006) | 1 line
- Changed paths:
- D /trunk
- A /ufoai/trunk (from /trunk:165)
-
- # First we start tracking the old revisions:
- GIT_SVN_ID=git-oldsvn git-svn init \
- https://svn.sourceforge.net/svnroot/ufoai/trunk
- GIT_SVN_ID=git-oldsvn git-svn fetch -r1:165
-
- # And now, we continue tracking the new revisions:
- GIT_SVN_ID=git-newsvn git-svn init \
- https://svn.sourceforge.net/svnroot/ufoai/ufoai/trunk
- GIT_SVN_ID=git-newsvn git-svn fetch \
- 166=`git-rev-parse refs/remotes/git-oldsvn`
-------------------------------------------------------------------------
+------------------------------------------------
+ git-svn fetch --follow-parent
+------------------------------------------------
BUGS
----
-If you are not using the SVN::* Perl libraries and somebody commits a
-conflicting changeset to SVN at a bad moment (right before you commit)
-causing a conflict and your commit to fail, your svn working tree
-($GIT_DIR/git-svn/tree) may be dirtied. The easiest thing to do is
-probably just to rm -rf $GIT_DIR/git-svn/tree and run 'rebuild'. You
-can avoid this problem entirely by using 'dcommit'.
-
We ignore all SVN properties except svn:executable. Too difficult to
map them since we rely heavily on git write-tree being _exactly_ the
same on both the SVN and git working trees and I prefer not to clutter