-----------
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.
+read-only.
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. 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.
+similar to git-svnimport.
git-svn is especially useful when it comes to tracking repositories
not organized in the way Subversion developers recommend (trunk,
--
'init'::
- Creates an empty git repository with additional metadata
- directories for git-svn. The Subversion URL must be specified
- as a command-line argument. Optionally, the target directory
- to operate on can be specified as a second argument. Normally
- this command initializes the current directory.
+ Initializes an empty git repository with additional
+ metadata directories for git-svn. The Subversion URL
+ may be specified as a command-line argument, or as full
+ URL arguments to -T/-t/-b. Optionally, the target
+ directory to operate on can be specified as a second
+ argument. Normally this command initializes the current
+ directory.
-'fetch'::
+-T<trunk_subdir>::
+--trunk=<trunk_subdir>::
+-t<tags_subdir>::
+--tags=<tags_subdir>::
+-b<branches_subdir>::
+--branches=<branches_subdir>::
+ These are optional command-line options for 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)
-Fetch unfetched revisions from the Subversion URL we are
-tracking. refs/remotes/git-svn will be updated to the
-latest revision.
+--prefix=<prefix>
+ This allows one to specify a prefix which is prepended
+ to the names of remotes if trunk/branches/tags are
+ specified. 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.
-Note: You should never attempt to modify the remotes/git-svn
-branch outside of git-svn. Instead, create a branch from
-remotes/git-svn and work on that branch. Use the 'dcommit'
-command (see below) to write git commits back to
-remotes/git-svn.
+'fetch'::
+
+ Fetch unfetched revisions from the Subversion remote we are
+ tracking. The name of the [svn-remote "..."] section in the
+ .git/config file may be specified as an optional command-line
+ argument.
'dcommit'::
Commit each diff from a specified head directly to the SVN
repository (that has been init-ed with git-svn).
The -r<revision> option is required for this.
-'graft-branches'::
- This command attempts to detect merges/branches from already
- imported history. Techniques used currently include regexes,
- file copies, and tree-matches). This command generates (or
- modifies) the $GIT_DIR/info/grafts file. This command is
- considered experimental, and inherently flawed because
- merge-tracking in SVN is inherently flawed and inconsistent
- across different repositories.
-
-'multi-init'::
- This command supports git-svnimport-like command-line syntax for
- 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
- multi-init will need to be re-run (it's idempotent).
-
--
OPTIONS
-------
--
---shared::
+--shared[={false|true|umask|group|all|world|everybody}]::
--template=<template_directory>::
Only used with the 'init' command.
These are passed directly to gitlink:git-init[1].
-r <ARG>::
--revision <ARG>::
-Only used with the 'fetch' command.
+Used with the 'fetch' command.
-Takes any valid -r<argument> svn would accept and passes it
-directly to svn. -r<ARG1>:<ARG2> ranges and "{" DATE "}" syntax
-is also supported. This is passed directly to svn, see svn
-documentation for more details.
+This allows revision ranges for partial/cauterized history
+to be supported. $NUMBER, $NUMBER1:$NUMBER2 (numeric ranges),
+$NUMBER:HEAD, and BASE:$NUMBER are all supported.
-This can allow you to make partial mirrors when running fetch.
+This can allow you to make partial mirrors when running fetch;
+but is generally not recommended because history will be skipped
+and lost.
-::
--stdin::
----------------
--
--b<refname>::
---branch <refname>::
-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.
-
-When used with different GIT_SVN_ID values, tags and branches in
-SVN can be tracked this way, as can some merges where the heads
-end up having completely equivalent content. This can even be
-used to track branches across multiple SVN _repositories_.
-
-This option may be specified multiple times, once for each
-branch.
-
-config key: svn.branch
-
-i<GIT_SVN_ID>::
--id <GIT_SVN_ID>::
-This sets GIT_SVN_ID (instead of using the environment). See the
-section on
-'<<tracking-multiple-repos,Tracking Multiple Repositories or Branches>>'
-for more information on using GIT_SVN_ID.
+This sets GIT_SVN_ID (instead of using the environment). This
+allows the user to override the default refname to fetch from
+when tracking a single URL. The 'log' and 'dcommit' commands
+no longer require this switch as an argument.
-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
+ this allows SVN multiple repositories to be tracked.
+ Default: "svn"
--follow-parent::
This is especially helpful when we're tracking a directory
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
+ git-svn init http://svn.foo.org/project -T trunk -b branches -t tags
# Fetch remote revisions:
- git-svn multi-fetch
+ git-svn 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
+ git-svn dcommit
# Something has been committed to trunk, rebase the latest into your branch:
- git-svn multi-fetch && git rebase remotes/trunk
+ git-svn 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
Merge tracking in Subversion is lacking and doing branched development
with Subversion is cumbersome as a result. git-svn does not do
automated merge/branch tracking by default and leaves it entirely up to
-the user on the git side.
-
-[[tracking-multiple-repos]]
-TRACKING MULTIPLE REPOSITORIES OR BRANCHES
-------------------------------------------
-Because git-svn does not care about relationships between different
-branches or directories in a Subversion repository, git-svn has a simple
-hack to allow it to track an arbitrary number of related _or_ unrelated
-SVN repositories via one git repository. Simply use the --id/-i flag or
-set the GIT_SVN_ID environment variable to a name other other than
-"git-svn" (the default) and git-svn will ignore the contents of the
-$GIT_DIR/svn/git-svn directory and instead do all of its work in
-$GIT_DIR/svn/$GIT_SVN_ID for that invocation. The interface branch will
-be remotes/$GIT_SVN_ID, instead of remotes/git-svn. Any
-remotes/$GIT_SVN_ID branch should never be modified by the user outside
-of git-svn commands.
-
-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 use
-the --follow-parent option.
-
-------------------------------------------------
- git-svn fetch --follow-parent
-------------------------------------------------
+the user on the git side. git-svn does however follow copy
+history of the directory that it is tracking, however (much like
+how 'svn log' works).
BUGS
----
copied files are fully supported if they're similar enough for git to
detect them.
+CONFIGURATION
+-------------
+
+git-svn stores [svn-remote] configuration information in the
+repository .git/config file. It is similar the core git
+[remote] sections except 'fetch' keys do not accept glob
+arguments; but they are instead handled by the 'branches'
+and 'tags' keys. Since some SVN repositories are oddly
+configured with multiple projects glob expansions such those
+listed below are allowed:
+
+------------------------------------------------------------------------
+[svn-remote "project-a"]
+ url = http://server.org/svn
+ branches = branches/*/project-a:refs/remotes/project-a/branches/*
+ tags = tags/*/project-a:refs/remotes/project-a/tags/*
+ trunk = trunk/project-a:refs/remotes/project-a/trunk
+------------------------------------------------------------------------
+
+Keep in mind that the '*' (asterisk) wildcard of the local ref
+(left of the ':') *must* be the farthest right path component;
+however the remote wildcard may be anywhere as long as it's own
+independent path componet (surrounded by '/' or EOL). This
+type of configuration is not automatically created by 'init' and
+should be manually entered with a text-editor or using
+gitlink:git-config[1]
+
SEE ALSO
--------
gitlink:git-rebase[1]
projects / git.git / commitdiff