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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
commitc8bae7493d2f2910b57f13ded012e86bdcfb0532 (patch)
tree24e09d9f84dec336720cf393e156089ca2835791 /Documentation/git-svn.txt
parentInitial commit. (diff)
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Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+git-svn(1)
+==========
+
+NAME
+----
+git-svn - Bidirectional operation between a Subversion repository and Git
+
+SYNOPSIS
+--------
+[verse]
+'git svn' <command> [<options>] [<arguments>]
+
+DESCRIPTION
+-----------
+'git svn' is a simple conduit for changesets between Subversion and Git.
+It provides a bidirectional flow of changes between a Subversion and a Git
+repository.
+
+'git svn' can track a standard Subversion repository,
+following the common "trunk/branches/tags" layout, with the --stdlayout option.
+It can also follow branches and tags in any layout with the -T/-t/-b options
+(see options to 'init' below, and also the 'clone' command).
+
+Once tracking a Subversion repository (with any of the above methods), the Git
+repository can be updated from Subversion by the 'fetch' command and
+Subversion updated from Git by the 'dcommit' command.
+
+COMMANDS
+--------
+
+'init'::
+ 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.
+
+-T<trunk_subdir>;;
+--trunk=<trunk_subdir>;;
+-t<tags_subdir>;;
+--tags=<tags_subdir>;;
+-b<branches_subdir>;;
+--branches=<branches_subdir>;;
+-s;;
+--stdlayout;;
+ 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).
+ You can specify more than one --tags and/or --branches options, in case
+ your Subversion repository places tags or branches under multiple paths.
+ The option --stdlayout is
+ a shorthand way of setting trunk,tags,branches as the relative paths,
+ which is the Subversion default. If any of the other options are given
+ as well, they take precedence.
+--no-metadata;;
+ Set the 'noMetadata' option in the [svn-remote] config.
+ This option is not recommended, please read the 'svn.noMetadata'
+ section of this manpage before using this option.
+--use-svm-props;;
+ Set the 'useSvmProps' option in the [svn-remote] config.
+--use-svnsync-props;;
+ Set the 'useSvnsyncProps' option in the [svn-remote] config.
+--rewrite-root=<URL>;;
+ Set the 'rewriteRoot' option in the [svn-remote] config.
+--rewrite-uuid=<UUID>;;
+ Set the 'rewriteUUID' option in the [svn-remote] config.
+--username=<user>;;
+ For transports that SVN handles authentication for (http,
+ https, and plain svn), specify the username. For other
+ transports (e.g. `svn+ssh://`), you must include the username in
+ the URL, e.g. `svn+ssh://foo@svn.bar.com/project`
+--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. If --branches/-b is
+ specified, the prefix must include a trailing slash.
+ Setting a prefix (with a trailing slash) is strongly
+ encouraged in any case, as your SVN-tracking refs will
+ then be located at "refs/remotes/$prefix/*", which is
+ compatible with Git's own remote-tracking ref layout
+ (refs/remotes/$remote/*). Setting a prefix is also useful
+ if you wish to track multiple projects that share a common
+ repository.
+ By default, the prefix is set to 'origin/'.
++
+NOTE: Before Git v2.0, the default prefix was "" (no prefix). This
+meant that SVN-tracking refs were put at "refs/remotes/*", which is
+incompatible with how Git's own remote-tracking refs are organized.
+If you still want the old default, you can get it by passing
+`--prefix ""` on the command line (`--prefix=""` may not work if
+your Perl's Getopt::Long is < v2.37).
+
+--ignore-refs=<regex>;;
+ When passed to 'init' or 'clone' this regular expression will
+ be preserved as a config key. See 'fetch' for a description
+ of `--ignore-refs`.
+--ignore-paths=<regex>;;
+ When passed to 'init' or 'clone' this regular expression will
+ be preserved as a config key. See 'fetch' for a description
+ of `--ignore-paths`.
+--include-paths=<regex>;;
+ When passed to 'init' or 'clone' this regular expression will
+ be preserved as a config key. See 'fetch' for a description
+ of `--include-paths`.
+--no-minimize-url;;
+ When tracking multiple directories (using --stdlayout,
+ --branches, or --tags options), git svn will attempt to connect
+ to the root (or highest allowed level) of the Subversion
+ repository. This default allows better tracking of history if
+ entire projects are moved within a repository, but may cause
+ issues on repositories where read access restrictions are in
+ place. Passing `--no-minimize-url` will allow git svn to
+ accept URLs as-is without attempting to connect to a higher
+ level directory. This option is off by default when only
+ one URL/branch is tracked (it would do little good).
+
+'fetch'::
+ Fetch unfetched revisions from the Subversion remote we are
+ tracking. The name of the [svn-remote "..."] section in the
+ $GIT_DIR/config file may be specified as an optional
+ command-line argument.
++
+This automatically updates the rev_map if needed (see
+'$GIT_DIR/svn/\**/.rev_map.*' in the FILES section below for details).
+
+--localtime;;
+ Store Git commit times in the local time zone instead of UTC. This
+ makes 'git log' (even without --date=local) show the same times
+ that `svn log` would in the local time zone.
++
+This doesn't interfere with interoperating with the Subversion
+repository you cloned from, but if you wish for your local Git
+repository to be able to interoperate with someone else's local Git
+repository, either don't use this option or you should both use it in
+the same local time zone.
+
+--parent;;
+ Fetch only from the SVN parent of the current HEAD.
+
+--ignore-refs=<regex>;;
+ Ignore refs for branches or tags matching the Perl regular
+ expression. A "negative look-ahead assertion" like
+ `^refs/remotes/origin/(?!tags/wanted-tag|wanted-branch).*$`
+ can be used to allow only certain refs.
++
+[verse]
+config key: svn-remote.<name>.ignore-refs
++
+If the ignore-refs configuration key is set, and the command-line
+option is also given, both regular expressions will be used.
+
+--ignore-paths=<regex>;;
+ This allows one to specify a Perl regular expression that will
+ cause skipping of all matching paths from checkout from SVN.
+ The `--ignore-paths` option should match for every 'fetch'
+ (including automatic fetches due to 'clone', 'dcommit',
+ 'rebase', etc) on a given repository.
++
+[verse]
+config key: svn-remote.<name>.ignore-paths
++
+If the ignore-paths configuration key is set, and the command-line
+option is also given, both regular expressions will be used.
++
+Examples:
++
+--
+Skip "doc*" directory for every fetch;;
++
+------------------------------------------------------------------------
+--ignore-paths="^doc"
+------------------------------------------------------------------------
+
+Skip "branches" and "tags" of first level directories;;
++
+------------------------------------------------------------------------
+--ignore-paths="^[^/]+/(?:branches|tags)"
+------------------------------------------------------------------------
+--
+
+--include-paths=<regex>;;
+ This allows one to specify a Perl regular expression that will
+ cause the inclusion of only matching paths from checkout from SVN.
+ The `--include-paths` option should match for every 'fetch'
+ (including automatic fetches due to 'clone', 'dcommit',
+ 'rebase', etc) on a given repository. `--ignore-paths` takes
+ precedence over `--include-paths`.
++
+[verse]
+config key: svn-remote.<name>.include-paths
+
+--log-window-size=<n>;;
+ Fetch <n> log entries per request when scanning Subversion history.
+ The default is 100. For very large Subversion repositories, larger
+ values may be needed for 'clone'/'fetch' to complete in reasonable
+ time. But overly large values may lead to higher memory usage and
+ request timeouts.
+
+'clone'::
+ Runs 'init' and 'fetch'. It will automatically create a
+ directory based on the basename of the URL passed to it;
+ or if a second argument is passed; it will create a directory
+ and work within that. It accepts all arguments that the
+ 'init' and 'fetch' commands accept; with the exception of
+ `--fetch-all` and `--parent`. After a repository is cloned,
+ the 'fetch' command will be able to update revisions without
+ affecting the working tree; and the 'rebase' command will be
+ able to update the working tree with the latest changes.
+
+--preserve-empty-dirs;;
+ Create a placeholder file in the local Git repository for each
+ empty directory fetched from Subversion. This includes directories
+ that become empty by removing all entries in the Subversion
+ repository (but not the directory itself). The placeholder files
+ are also tracked and removed when no longer necessary.
+
+--placeholder-filename=<filename>;;
+ Set the name of placeholder files created by --preserve-empty-dirs.
+ Default: ".gitignore"
+
+'rebase'::
+ This fetches revisions from the SVN parent of the current HEAD
+ and rebases the current (uncommitted to SVN) work against it.
++
+This works similarly to `svn update` or 'git pull' except that
+it preserves linear history with 'git rebase' instead of
+'git merge' for ease of dcommitting with 'git svn'.
++
+This accepts all options that 'git svn fetch' and 'git rebase'
+accept. However, `--fetch-all` only fetches from the current
+[svn-remote], and not all [svn-remote] definitions.
++
+Like 'git rebase'; this requires that the working tree be clean
+and have no uncommitted changes.
++
+This automatically updates the rev_map if needed (see
+'$GIT_DIR/svn/\**/.rev_map.*' in the FILES section below for details).
+
+-l;;
+--local;;
+ Do not fetch remotely; only run 'git rebase' against the
+ last fetched commit from the upstream SVN.
+
+'dcommit'::
+ Commit each diff from the current branch directly to the SVN
+ repository, and then rebase or reset (depending on whether or
+ not there is a diff between SVN and head). This will create
+ a revision in SVN for each commit in Git.
++
+When an optional Git branch name (or a Git commit object name)
+is specified as an argument, the subcommand works on the specified
+branch, not on the current branch.
++
+Use of 'dcommit' is preferred to 'set-tree' (below).
++
+--no-rebase;;
+ After committing, do not rebase or reset.
+--commit-url <URL>;;
+ Commit to this SVN URL (the full path). This is intended to
+ allow existing 'git svn' repositories created with one transport
+ method (e.g. `svn://` or `http://` for anonymous read) to be
+ reused if a user is later given access to an alternate transport
+ method (e.g. `svn+ssh://` or `https://`) for commit.
++
+[verse]
+config key: svn-remote.<name>.commiturl
+config key: svn.commiturl (overwrites all svn-remote.<name>.commiturl options)
++
+Note that the SVN URL of the commiturl config key includes the SVN branch.
+If you rather want to set the commit URL for an entire SVN repository use
+svn-remote.<name>.pushurl instead.
++
+Using this option for any other purpose (don't ask) is very strongly
+discouraged.
+
+--mergeinfo=<mergeinfo>;;
+ Add the given merge information during the dcommit
+ (e.g. `--mergeinfo="/branches/foo:1-10"`). All svn server versions can
+ store this information (as a property), and svn clients starting from
+ version 1.5 can make use of it. To specify merge information from multiple
+ branches, use a single space character between the branches
+ (`--mergeinfo="/branches/foo:1-10 /branches/bar:3,5-6,8"`)
++
+[verse]
+config key: svn.pushmergeinfo
++
+This option will cause git-svn to attempt to automatically populate the
+svn:mergeinfo property in the SVN repository when possible. Currently, this can
+only be done when dcommitting non-fast-forward merges where all parents but the
+first have already been pushed into SVN.
+
+--interactive;;
+ Ask the user to confirm that a patch set should actually be sent to SVN.
+ For each patch, one may answer "yes" (accept this patch), "no" (discard this
+ patch), "all" (accept all patches), or "quit".
++
+'git svn dcommit' returns immediately if answer is "no" or "quit", without
+committing anything to SVN.
+
+'branch'::
+ Create a branch in the SVN repository.
+
+-m;;
+--message;;
+ Allows to specify the commit message.
+
+-t;;
+--tag;;
+ Create a tag by using the tags_subdir instead of the branches_subdir
+ specified during git svn init.
+
+-d<path>;;
+--destination=<path>;;
+
+ If more than one --branches (or --tags) option was given to the 'init'
+ or 'clone' command, you must provide the location of the branch (or
+ tag) you wish to create in the SVN repository. <path> specifies which
+ path to use to create the branch or tag and should match the pattern
+ on the left-hand side of one of the configured branches or tags
+ refspecs. You can see these refspecs with the commands
++
+ git config --get-all svn-remote.<name>.branches
+ git config --get-all svn-remote.<name>.tags
++
+where <name> is the name of the SVN repository as specified by the -R option to
+'init' (or "svn" by default).
+
+--username;;
+ Specify the SVN username to perform the commit as. This option overrides
+ the 'username' configuration property.
+
+--commit-url;;
+ Use the specified URL to connect to the destination Subversion
+ repository. This is useful in cases where the source SVN
+ repository is read-only. This option overrides configuration
+ property 'commiturl'.
++
+ git config --get-all svn-remote.<name>.commiturl
++
+
+--parents;;
+ Create parent folders. This parameter is equivalent to the parameter
+ --parents on svn cp commands and is useful for non-standard repository
+ layouts.
+
+'tag'::
+ Create a tag in the SVN repository. This is a shorthand for
+ 'branch -t'.
+
+'log'::
+ This should make it easy to look up svn log messages when svn
+ users refer to -r/--revision numbers.
++
+The following features from `svn log' are supported:
++
+--
+-r <n>[:<n>];;
+--revision=<n>[:<n>];;
+ is supported, non-numeric args are not:
+ HEAD, NEXT, BASE, PREV, etc ...
+-v;;
+--verbose;;
+ it's not completely compatible with the --verbose
+ output in svn log, but reasonably close.
+--limit=<n>;;
+ is NOT the same as --max-count, doesn't count
+ merged/excluded commits
+--incremental;;
+ supported
+--
++
+New features:
++
+--
+--show-commit;;
+ shows the Git commit sha1, as well
+--oneline;;
+ our version of --pretty=oneline
+--
++
+NOTE: SVN itself only stores times in UTC and nothing else. The regular svn
+client converts the UTC time to the local time (or based on the TZ=
+environment). This command has the same behaviour.
++
+Any other arguments are passed directly to 'git log'
+
+'blame'::
+ Show what revision and author last modified each line of a file. The
+ output of this mode is format-compatible with the output of
+ `svn blame' by default. Like the SVN blame command,
+ local uncommitted changes in the working tree are ignored;
+ the version of the file in the HEAD revision is annotated. Unknown
+ arguments are passed directly to 'git blame'.
++
+--git-format;;
+ Produce output in the same format as 'git blame', but with
+ SVN revision numbers instead of Git commit hashes. In this mode,
+ changes that haven't been committed to SVN (including local
+ working-copy edits) are shown as revision 0.
+
+'find-rev'::
+ When given an SVN revision number of the form 'rN', returns the
+ corresponding Git commit hash (this can optionally be followed by a
+ tree-ish to specify which branch should be searched). When given a
+ tree-ish, returns the corresponding SVN revision number.
++
+-B;;
+--before;;
+ Don't require an exact match if given an SVN revision, instead find
+ the commit corresponding to the state of the SVN repository (on the
+ current branch) at the specified revision.
++
+-A;;
+--after;;
+ Don't require an exact match if given an SVN revision; if there is
+ not an exact match return the closest match searching forward in the
+ history.
+
+'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
+ absolutely no attempts to do patching when committing to SVN, it
+ simply overwrites files with those specified in the tree or
+ commit. All merging is assumed to have taken place
+ independently of 'git svn' functions.
+
+'create-ignore'::
+ Recursively finds the svn:ignore property on directories and
+ creates matching .gitignore files. The resulting files are staged to
+ be committed, but are not committed. Use -r/--revision to refer to a
+ specific revision.
+
+'show-ignore'::
+ Recursively finds and lists the svn:ignore property on
+ directories. The output is suitable for appending to
+ the $GIT_DIR/info/exclude file.
+
+'mkdirs'::
+ Attempts to recreate empty directories that core Git cannot track
+ based on information in $GIT_DIR/svn/<refname>/unhandled.log files.
+ Empty directories are automatically recreated when using
+ "git svn clone" and "git svn rebase", so "mkdirs" is intended
+ for use after commands like "git checkout" or "git reset".
+ (See the svn-remote.<name>.automkdirs config file option for
+ more information.)
+
+'commit-diff'::
+ Commits the diff of two tree-ish arguments from the
+ command-line. This command does not rely on being inside a `git svn
+ init`-ed repository. This command takes three arguments, (a) the
+ original tree to diff against, (b) the new tree result, (c) the
+ URL of the target Subversion repository. The final argument
+ (URL) may be omitted if you are working from a 'git svn'-aware
+ repository (that has been `init`-ed with 'git svn').
+ The -r<revision> option is required for this.
++
+The commit message is supplied either directly with the `-m` or `-F`
+option, or indirectly from the tag or commit when the second tree-ish
+denotes such an object, or it is requested by invoking an editor (see
+`--edit` option below).
+
+-m <msg>;;
+--message=<msg>;;
+ Use the given `msg` as the commit message. This option
+ disables the `--edit` option.
+
+-F <filename>;;
+--file=<filename>;;
+ Take the commit message from the given file. This option
+ disables the `--edit` option.
+
+'info'::
+ Shows information about a file or directory similar to what
+ `svn info' provides. Does not currently support a -r/--revision
+ argument. Use the --url option to output only the value of the
+ 'URL:' field.
+
+'proplist'::
+ Lists the properties stored in the Subversion repository about a
+ given file or directory. Use -r/--revision to refer to a specific
+ Subversion revision.
+
+'propget'::
+ Gets the Subversion property given as the first argument, for a
+ file. A specific revision can be specified with -r/--revision.
+
+'propset'::
+ Sets the Subversion property given as the first argument, to the
+ value given as the second argument for the file given as the
+ third argument.
++
+Example:
++
+------------------------------------------------------------------------
+git svn propset svn:keywords "FreeBSD=%H" devel/py-tipper/Makefile
+------------------------------------------------------------------------
++
+This will set the property 'svn:keywords' to 'FreeBSD=%H' for the file
+'devel/py-tipper/Makefile'.
+
+'show-externals'::
+ Shows the Subversion externals. Use -r/--revision to specify a
+ specific revision.
+
+'gc'::
+ Compress $GIT_DIR/svn/<refname>/unhandled.log files and remove
+ $GIT_DIR/svn/<refname>/index files.
+
+'reset'::
+ Undoes the effects of 'fetch' back to the specified revision.
+ This allows you to re-'fetch' an SVN revision. Normally the
+ contents of an SVN revision should never change and 'reset'
+ should not be necessary. However, if SVN permissions change,
+ or if you alter your --ignore-paths option, a 'fetch' may fail
+ with "not found in commit" (file not previously visible) or
+ "checksum mismatch" (missed a modification). If the problem
+ file cannot be ignored forever (with --ignore-paths) the only
+ way to repair the repo is to use 'reset'.
++
+Only the rev_map and refs/remotes/git-svn are changed (see
+'$GIT_DIR/svn/\**/.rev_map.*' in the FILES section below for details).
+Follow 'reset' with a 'fetch' and then 'git reset' or 'git rebase' to
+move local branches onto the new tree.
+
+-r <n>;;
+--revision=<n>;;
+ Specify the most recent revision to keep. All later revisions
+ are discarded.
+-p;;
+--parent;;
+ Discard the specified revision as well, keeping the nearest
+ parent instead.
+Example:;;
+Assume you have local changes in "master", but you need to refetch "r2".
++
+------------
+ r1---r2---r3 remotes/git-svn
+ \
+ A---B master
+------------
++
+Fix the ignore-paths or SVN permissions problem that caused "r2" to
+be incomplete in the first place. Then:
++
+[verse]
+git svn reset -r2 -p
+git svn fetch
++
+------------
+ r1---r2'--r3' remotes/git-svn
+ \
+ r2---r3---A---B master
+------------
++
+Then fixup "master" with 'git rebase'.
+Do NOT use 'git merge' or your history will not be compatible with a
+future 'dcommit'!
++
+[verse]
+git rebase --onto remotes/git-svn A^ master
++
+------------
+ r1---r2'--r3' remotes/git-svn
+ \
+ A'--B' master
+------------
+
+OPTIONS
+-------
+
+--shared[=(false|true|umask|group|all|world|everybody)]::
+--template=<template-directory>::
+ Only used with the 'init' command.
+ These are passed directly to 'git init'.
+
+-r <arg>::
+--revision <arg>::
+ Used with the 'fetch' command.
++
+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;
+but is generally not recommended because history will be skipped
+and lost.
+
+-::
+--stdin::
+ 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
+'git rev-list --pretty=oneline' output can be used.
+
+--rmdir::
+ 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
+removed by default if there are no files left in them. Git
+cannot version empty directories. Enabling this flag will make
+the commit to SVN act like Git.
++
+[verse]
+config key: svn.rmdir
+
+-e::
+--edit::
+ 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.
++
+[verse]
+config key: svn.edit
+
+-l<num>::
+--find-copies-harder::
+ Only used with the 'dcommit', 'set-tree' and 'commit-diff' commands.
++
+They are both passed directly to 'git diff-tree'; see
+linkgit:git-diff-tree[1] for more information.
++
+[verse]
+config key: svn.l
+config key: svn.findcopiesharder
+
+-A<filename>::
+--authors-file=<filename>::
+ Syntax is compatible with the file used by 'git cvsimport' but
+ an empty email address can be supplied with '<>':
++
+------------------------------------------------------------------------
+ loginname = Joe User <user@example.com>
+------------------------------------------------------------------------
++
+If this option is specified and 'git svn' encounters an SVN
+committer name that does not exist in the authors-file, 'git svn'
+will abort operation. The user will then have to add the
+appropriate entry. Re-running the previous 'git svn' command
+after the authors-file is modified should continue operation.
++
+[verse]
+config key: svn.authorsfile
+
+--authors-prog=<filename>::
+ If this option is specified, for each SVN committer name that
+ does not exist in the authors file, the given file is executed
+ with the committer name as the first argument. The program is
+ expected to return a single line of the form "Name <email>" or
+ "Name <>", which will be treated as if included in the authors
+ file.
++
+Due to historical reasons a relative 'filename' is first searched
+relative to the current directory for 'init' and 'clone' and relative
+to the root of the working tree for 'fetch'. If 'filename' is
+not found, it is searched like any other command in '$PATH'.
++
+[verse]
+config key: svn.authorsProg
+
+-q::
+--quiet::
+ Make 'git svn' less verbose. Specify a second time to make it
+ even less verbose.
+
+-m::
+--merge::
+-s<strategy>::
+--strategy=<strategy>::
+-p::
+--rebase-merges::
+ These are only used with the 'dcommit' and 'rebase' commands.
++
+Passed directly to 'git rebase' when using 'dcommit' if a
+'git reset' cannot be used (see 'dcommit').
+
+-n::
+--dry-run::
+ This can be used with the 'dcommit', 'rebase', 'branch' and
+ 'tag' commands.
++
+For 'dcommit', print out the series of Git arguments that would show
+which diffs would be committed to SVN.
++
+For 'rebase', display the local branch associated with the upstream svn
+repository associated with the current branch and the URL of svn
+repository that will be fetched from.
++
+For 'branch' and 'tag', display the urls that will be used for copying when
+creating the branch or tag.
+
+--use-log-author::
+ When retrieving svn commits into Git (as part of 'fetch', 'rebase', or
+ 'dcommit' operations), look for the first `From:` line or `Signed-off-by` trailer
+ in the log message and use that as the author string.
++
+[verse]
+config key: svn.useLogAuthor
+
+--add-author-from::
+ When committing to svn from Git (as part of 'set-tree' or 'dcommit'
+ operations), if the existing log message doesn't already have a
+ `From:` or `Signed-off-by` trailer, append a `From:` line based on the
+ Git commit's author string. If you use this, then `--use-log-author`
+ will retrieve a valid author string for all commits.
++
+[verse]
+config key: svn.addAuthorFrom
+
+ADVANCED OPTIONS
+----------------
+
+-i<GIT_SVN_ID>::
+--id <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 SVN multiple repositories to be tracked.
+ Default: "svn"
+
+--follow-parent::
+ This option is only relevant if we are tracking branches (using
+ one of the repository layout options --trunk, --tags,
+ --branches, --stdlayout). For each tracked branch, try to find
+ out where its revision was copied from, and set
+ a suitable parent in the first Git commit for the branch.
+ This is especially helpful when we're tracking a directory
+ that has been moved around within the repository. If this
+ feature is disabled, the branches created by 'git svn' will all
+ be linear and not share any history, meaning that there will be
+ no information on where branches were branched off or merged.
+ However, following long/convoluted histories can take a long
+ time, so disabling this feature may speed up the cloning
+ process. This feature is enabled by default, use
+ --no-follow-parent to disable it.
++
+[verse]
+config key: svn.followparent
+
+CONFIG FILE-ONLY OPTIONS
+------------------------
+
+svn.noMetadata::
+svn-remote.<name>.noMetadata::
+ This gets rid of the 'git-svn-id:' lines at the end of every commit.
++
+This option can only be used for one-shot imports as 'git svn'
+will not be able to fetch again without metadata. Additionally,
+if you lose your '$GIT_DIR/svn/\**/.rev_map.*' files, 'git svn' will not
+be able to rebuild them.
++
+The 'git svn log' command will not work on repositories using
+this, either. Using this conflicts with the 'useSvmProps'
+option for (hopefully) obvious reasons.
++
+This option is NOT recommended as it makes it difficult to track down
+old references to SVN revision numbers in existing documentation, bug
+reports, and archives. If you plan to eventually migrate from SVN to
+Git and are certain about dropping SVN history, consider
+https://github.com/newren/git-filter-repo[git-filter-repo] instead.
+filter-repo also allows reformatting of metadata for ease-of-reading
+and rewriting authorship info for non-"svn.authorsFile" users.
+
+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.
++
+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.
+
+svn.useSvnsyncProps::
+svn-remote.<name>.useSvnsyncprops::
+ Similar to the useSvmProps option; this is for users
+ of the svnsync(1) command distributed with SVN 1.4.x and
+ later.
+
+svn-remote.<name>.rewriteRoot::
+ This allows users to create repositories from alternate
+ URLs. For example, an administrator could run 'git svn' on the
+ server locally (accessing via file://) but wish to distribute
+ the repository with a public http:// or svn:// URL in the
+ metadata so users of it will see the public URL.
+
+svn-remote.<name>.rewriteUUID::
+ Similar to the useSvmProps option; this is for users who need
+ to remap the UUID manually. This may be useful in situations
+ where the original UUID is not available via either useSvmProps
+ or useSvnsyncProps.
+
+svn-remote.<name>.pushurl::
+
+ Similar to Git's `remote.<name>.pushurl`, this key is designed
+ to be used in cases where 'url' points to an SVN repository
+ via a read-only transport, to provide an alternate read/write
+ transport. It is assumed that both keys point to the same
+ repository. Unlike 'commiturl', 'pushurl' is a base path. If
+ either 'commiturl' or 'pushurl' could be used, 'commiturl'
+ takes precedence.
+
+svn.brokenSymlinkWorkaround::
+ This disables potentially expensive checks to workaround
+ broken symlinks checked into SVN by broken clients. Set this
+ option to "false" if you track a SVN repository with many
+ empty blobs that are not symlinks. This option may be changed
+ while 'git svn' is running and take effect on the next
+ revision fetched. If unset, 'git svn' assumes this option to
+ be "true".
+
+svn.pathnameencoding::
+ This instructs git svn to recode pathnames to a given encoding.
+ It can be used by windows users and by those who work in non-utf8
+ locales to avoid corrupted file names with non-ASCII characters.
+ Valid encodings are the ones supported by Perl's Encode module.
+
+svn-remote.<name>.automkdirs::
+ Normally, the "git svn clone" and "git svn rebase" commands
+ attempt to recreate empty directories that are in the
+ Subversion repository. If this option is set to "false", then
+ empty directories will only be created if the "git svn mkdirs"
+ command is run explicitly. If unset, 'git svn' assumes this
+ option to be "true".
+
+Since the noMetadata, rewriteRoot, rewriteUUID, useSvnsyncProps and useSvmProps
+options all affect the metadata generated and used by 'git svn'; they
+*must* be set in the configuration file before any history is imported
+and these settings should never be changed once they are set.
+
+Additionally, only one of these options can be used per svn-remote
+section because they affect the 'git-svn-id:' metadata line, except
+for rewriteRoot and rewriteUUID which can be used together.
+
+
+BASIC EXAMPLES
+--------------
+
+Tracking and contributing to the trunk of a Subversion-managed project
+(ignoring tags and branches):
+
+------------------------------------------------------------------------
+# Clone a repo (like git clone):
+ git svn clone http://svn.example.com/project/trunk
+# Enter the newly cloned directory:
+ cd trunk
+# You should be on master branch, double-check with 'git branch'
+ git branch
+# Do some work and commit locally to Git:
+ git commit ...
+# Something is committed to SVN, rebase your local changes against the
+# latest changes in SVN:
+ git svn rebase
+# Now commit your changes (that were committed previously using Git) to SVN,
+# as well as automatically updating your working HEAD:
+ git svn dcommit
+# Append svn:ignore settings to the default Git exclude file:
+ git svn show-ignore >> .git/info/exclude
+------------------------------------------------------------------------
+
+Tracking and contributing to an entire Subversion-managed project
+(complete with a trunk, tags and branches):
+
+------------------------------------------------------------------------
+# Clone a repo with standard SVN directory layout (like git clone):
+ git svn clone http://svn.example.com/project --stdlayout --prefix svn/
+# Or, if the repo uses a non-standard directory layout:
+ git svn clone http://svn.example.com/project -T tr -b branch -t tag --prefix svn/
+# View all branches and tags you have cloned:
+ git branch -r
+# Create a new branch in SVN
+ git svn branch waldo
+# Reset your master to trunk (or any other branch, replacing 'trunk'
+# with the appropriate name):
+ git reset --hard svn/trunk
+# You may only dcommit to one branch/tag/trunk at a time. The usage
+# of dcommit/rebase/show-ignore should be the same as above.
+------------------------------------------------------------------------
+
+The initial 'git svn clone' can be quite time-consuming
+(especially for large Subversion repositories). If multiple
+people (or one person with multiple machines) want to use
+'git svn' to interact with the same Subversion repository, you can
+do the initial 'git svn clone' to a repository on a server and
+have each person clone that repository with 'git clone':
+
+------------------------------------------------------------------------
+# Do the initial import on a server
+ ssh server "cd /pub && git svn clone http://svn.example.com/project [options...]"
+# Clone locally - make sure the refs/remotes/ space matches the server
+ mkdir project
+ cd project
+ git init
+ git remote add origin server:/pub/project
+ git config --replace-all remote.origin.fetch '+refs/remotes/*:refs/remotes/*'
+ git fetch
+# Prevent fetch/pull from remote Git server in the future,
+# we only want to use git svn for future updates
+ git config --remove-section remote.origin
+# Create a local branch from one of the branches just fetched
+ git checkout -b master FETCH_HEAD
+# Initialize 'git svn' locally (be sure to use the same URL and
+# --stdlayout/-T/-b/-t/--prefix options as were used on server)
+ git svn init http://svn.example.com/project [options...]
+# Pull the latest changes from Subversion
+ git svn rebase
+------------------------------------------------------------------------
+
+REBASE VS. PULL/MERGE
+---------------------
+Prefer to use 'git svn rebase' or 'git rebase', rather than
+'git pull' or 'git merge' to synchronize unintegrated commits with a 'git svn'
+branch. Doing so will keep the history of unintegrated commits linear with
+respect to the upstream SVN repository and allow the use of the preferred
+'git svn dcommit' subcommand to push unintegrated commits back into SVN.
+
+Originally, 'git svn' recommended that developers pulled or merged from
+the 'git svn' branch. This was 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. Use of
+'git pull' or 'git merge' with `git svn set-tree A..B` will cause non-linear
+history to be flattened when committing into SVN and this can lead to merge
+commits unexpectedly reversing previous commits in SVN.
+
+MERGE TRACKING
+--------------
+While 'git svn' can track
+copy history (including branches and tags) for repositories adopting a
+standard layout, it cannot yet represent merge history that happened
+inside git back upstream to SVN users. Therefore it is advised that
+users keep history as linear as possible inside Git to ease
+compatibility with SVN (see the CAVEATS section below).
+
+HANDLING OF SVN BRANCHES
+------------------------
+If 'git svn' is configured to fetch branches (and --follow-branches
+is in effect), it sometimes creates multiple Git branches for one
+SVN branch, where the additional branches have names of the form
+'branchname@nnn' (with nnn an SVN revision number). These additional
+branches are created if 'git svn' cannot find a parent commit for the
+first commit in an SVN branch, to connect the branch to the history of
+the other branches.
+
+Normally, the first commit in an SVN branch consists
+of a copy operation. 'git svn' will read this commit to get the SVN
+revision the branch was created from. It will then try to find the
+Git commit that corresponds to this SVN revision, and use that as the
+parent of the branch. However, it is possible that there is no suitable
+Git commit to serve as parent. This will happen, among other reasons,
+if the SVN branch is a copy of a revision that was not fetched by 'git
+svn' (e.g. because it is an old revision that was skipped with
+`--revision`), or if in SVN a directory was copied that is not tracked
+by 'git svn' (such as a branch that is not tracked at all, or a
+subdirectory of a tracked branch). In these cases, 'git svn' will still
+create a Git branch, but instead of using an existing Git commit as the
+parent of the branch, it will read the SVN history of the directory the
+branch was copied from and create appropriate Git commits. This is
+indicated by the message "Initializing parent: <branchname>".
+
+Additionally, it will create a special branch named
+'<branchname>@<SVN-Revision>', where <SVN-Revision> is the SVN revision
+number the branch was copied from. This branch will point to the newly
+created parent commit of the branch. If in SVN the branch was deleted
+and later recreated from a different version, there will be multiple
+such branches with an '@'.
+
+Note that this may mean that multiple Git commits are created for a
+single SVN revision.
+
+An example: in an SVN repository with a standard
+trunk/tags/branches layout, a directory trunk/sub is created in r.100.
+In r.200, trunk/sub is branched by copying it to branches/. 'git svn
+clone -s' will then create a branch 'sub'. It will also create new Git
+commits for r.100 through r.199 and use these as the history of branch
+'sub'. Thus there will be two Git commits for each revision from r.100
+to r.199 (one containing trunk/, one containing trunk/sub/). Finally,
+it will create a branch 'sub@200' pointing to the new parent commit of
+branch 'sub' (i.e. the commit for r.200 and trunk/sub/).
+
+CAVEATS
+-------
+
+For the sake of simplicity and interoperating with Subversion,
+it is recommended that all 'git svn' users clone, fetch and dcommit
+directly from the SVN server, and avoid all 'git clone'/'pull'/'merge'/'push'
+operations between Git repositories and branches. The recommended
+method of exchanging code between Git branches and users is
+'git format-patch' and 'git am', or just 'dcommit'ing to the SVN repository.
+
+Running 'git merge' or 'git pull' is NOT recommended on a branch you
+plan to 'dcommit' from because Subversion users cannot see any
+merges you've made. Furthermore, if you merge or pull from a Git branch
+that is a mirror of an SVN branch, 'dcommit' may commit to the wrong
+branch.
+
+If you do merge, note the following rule: 'git svn dcommit' will
+attempt to commit on top of the SVN commit named in
+------------------------------------------------------------------------
+git log --grep=^git-svn-id: --first-parent -1
+------------------------------------------------------------------------
+You 'must' therefore ensure that the most recent commit of the branch
+you want to dcommit to is the 'first' parent of the merge. Chaos will
+ensue otherwise, especially if the first parent is an older commit on
+the same SVN branch.
+
+'git clone' does not clone branches under the refs/remotes/ hierarchy or
+any 'git svn' metadata, or config. So repositories created and managed with
+using 'git svn' should use 'rsync' for cloning, if cloning is to be done
+at all.
+
+Since 'dcommit' uses rebase internally, any Git branches you 'git push' to
+before 'dcommit' on will require forcing an overwrite of the existing ref
+on the remote repository. This is generally considered bad practice,
+see the linkgit:git-push[1] documentation for details.
+
+Do not use the --amend option of linkgit:git-commit[1] on a change you've
+already dcommitted. It is considered bad practice to --amend commits
+you've already pushed to a remote repository for other users, and
+dcommit with SVN is analogous to that.
+
+When cloning an SVN repository, if none of the options for describing
+the repository layout is used (--trunk, --tags, --branches,
+--stdlayout), 'git svn clone' will create a Git repository with
+completely linear history, where branches and tags appear as separate
+directories in the working copy. While this is the easiest way to get a
+copy of a complete repository, for projects with many branches it will
+lead to a working copy many times larger than just the trunk. Thus for
+projects using the standard directory structure (trunk/branches/tags),
+it is recommended to clone with option `--stdlayout`. If the project
+uses a non-standard structure, and/or if branches and tags are not
+required, it is easiest to only clone one directory (typically trunk),
+without giving any repository layout options. If the full history with
+branches and tags is required, the options `--trunk` / `--branches` /
+`--tags` must be used.
+
+When using multiple --branches or --tags, 'git svn' does not automatically
+handle name collisions (for example, if two branches from different paths have
+the same name, or if a branch and a tag have the same name). In these cases,
+use 'init' to set up your Git repository then, before your first 'fetch', edit
+the $GIT_DIR/config file so that the branches and tags are associated
+with different name spaces. For example:
+
+ branches = stable/*:refs/remotes/svn/stable/*
+ branches = debug/*:refs/remotes/svn/debug/*
+
+CONFIGURATION
+-------------
+
+'git svn' stores [svn-remote] configuration information in the
+repository $GIT_DIR/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
+ fetch = trunk/project-a:refs/remotes/project-a/trunk
+ branches = branches/*/project-a:refs/remotes/project-a/branches/*
+ branches = branches/release_*:refs/remotes/project-a/branches/release_*
+ branches = branches/re*se:refs/remotes/project-a/branches/*
+ tags = tags/*/project-a:refs/remotes/project-a/tags/*
+------------------------------------------------------------------------
+
+Keep in mind that the `*` (asterisk) wildcard of the local ref
+(right of the `:`) *must* be the farthest right path component;
+however the remote wildcard may be anywhere as long as it's an
+independent path component (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 'git config'.
+
+Also note that only one asterisk is allowed per word. For example:
+
+ branches = branches/re*se:refs/remotes/project-a/branches/*
+
+will match branches 'release', 'rese', 're123se', however
+
+ branches = branches/re*s*e:refs/remotes/project-a/branches/*
+
+will produce an error.
+
+It is also possible to fetch a subset of branches or tags by using a
+comma-separated list of names within braces. For example:
+
+------------------------------------------------------------------------
+[svn-remote "huge-project"]
+ url = http://server.org/svn
+ fetch = trunk/src:refs/remotes/trunk
+ branches = branches/{red,green}/src:refs/remotes/project-a/branches/*
+ tags = tags/{1.0,2.0}/src:refs/remotes/project-a/tags/*
+------------------------------------------------------------------------
+
+Multiple fetch, branches, and tags keys are supported:
+
+------------------------------------------------------------------------
+[svn-remote "messy-repo"]
+ url = http://server.org/svn
+ fetch = trunk/project-a:refs/remotes/project-a/trunk
+ fetch = branches/demos/june-project-a-demo:refs/remotes/project-a/demos/june-demo
+ branches = branches/server/*:refs/remotes/project-a/branches/*
+ branches = branches/demos/2011/*:refs/remotes/project-a/2011-demos/*
+ tags = tags/server/*:refs/remotes/project-a/tags/*
+------------------------------------------------------------------------
+
+Creating a branch in such a configuration requires disambiguating which
+location to use using the -d or --destination flag:
+
+------------------------------------------------------------------------
+$ git svn branch -d branches/server release-2-3-0
+------------------------------------------------------------------------
+
+Note that git-svn keeps track of the highest revision in which a branch
+or tag has appeared. If the subset of branches or tags is changed after
+fetching, then $GIT_DIR/svn/.metadata must be manually edited to remove
+(or reset) branches-maxRev and/or tags-maxRev as appropriate.
+
+FILES
+-----
+$GIT_DIR/svn/\**/.rev_map.*::
+ Mapping between Subversion revision numbers and Git commit
+ names. In a repository where the noMetadata option is not set,
+ this can be rebuilt from the git-svn-id: lines that are at the
+ end of every commit (see the 'svn.noMetadata' section above for
+ details).
++
+'git svn fetch' and 'git svn rebase' automatically update the rev_map
+if it is missing or not up to date. 'git svn reset' automatically
+rewinds it.
+
+BUGS
+----
+
+We ignore all SVN properties except svn:executable. Any unhandled
+properties are logged to $GIT_DIR/svn/<refname>/unhandled.log
+
+Renamed and copied directories are not detected by Git and hence not
+tracked when committing to SVN. I do not plan on adding support for
+this as it's quite difficult and time-consuming to get working for all
+the possible corner cases (Git doesn't do it, either). Committing
+renamed and copied files is fully supported if they're similar enough
+for Git to detect them.
+
+In SVN, it is possible (though discouraged) to commit changes to a tag
+(because a tag is just a directory copy, thus technically the same as a
+branch). When cloning an SVN repository, 'git svn' cannot know if such a
+commit to a tag will happen in the future. Thus it acts conservatively
+and imports all SVN tags as branches, prefixing the tag name with 'tags/'.
+
+SEE ALSO
+--------
+linkgit:git-rebase[1]
+
+GIT
+---
+Part of the linkgit:git[1] suite