This parameter is equivalent to the parameter --parents on svn cp commands
and is useful for non-standard repository layouts.

Signed-off-by: Tobias Schulte <tobias.schu...@gliderpilot.de>
---
 Documentation/git-svn.txt                |    5 ++++
 git-svn.perl                             |   22 +++++++++++++-
 t/t9167-git-svn-cmd-branch-subproject.sh |   46 ++++++++++++++++++++++++++++++
 3 files changed, 72 insertions(+), 1 deletion(-)
 create mode 100755 t/t9167-git-svn-cmd-branch-subproject.sh

diff --git a/Documentation/git-svn.txt b/Documentation/git-svn.txt
index 58b6d54..4f2141d 100644
--- a/Documentation/git-svn.txt
+++ b/Documentation/git-svn.txt
@@ -298,6 +298,11 @@ where <name> is the name of the SVN repository as 
specified by the -R option to
        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'.
diff --git a/git-svn.perl b/git-svn.perl
index ccabe06..204313d 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -113,7 +113,7 @@ my ($_stdin, $_help, $_edit,
        $_template, $_shared,
        $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
        $_before, $_after,
-       $_merge, $_strategy, $_preserve_merges, $_dry_run, $_local,
+       $_merge, $_strategy, $_preserve_merges, $_dry_run, $_parents, $_local,
        $_prefix, $_no_checkout, $_url, $_verbose,
        $_commit_url, $_tag, $_merge_info, $_interactive);
 
@@ -203,6 +203,7 @@ my %cmd = (
                    { 'message|m=s' => \$_message,
                      'destination|d=s' => \$_branch_dest,
                      'dry-run|n' => \$_dry_run,
+                     'parents' => \$_parents,
                      'tag|t' => \$_tag,
                      'username=s' => \$Git::SVN::Prompt::_username,
                      'commit-url=s' => \$_commit_url } ],
@@ -211,6 +212,7 @@ my %cmd = (
                 { 'message|m=s' => \$_message,
                   'destination|d=s' => \$_branch_dest,
                   'dry-run|n' => \$_dry_run,
+                  'parents' => \$_parents,
                   'username=s' => \$Git::SVN::Prompt::_username,
                   'commit-url=s' => \$_commit_url } ],
        'set-tree' => [ \&cmd_set_tree,
@@ -1172,6 +1174,10 @@ sub cmd_branch {
                $ctx->ls($dst, 'HEAD', 0);
        } and die "branch ${branch_name} already exists\n";
 
+       if ($_parents) {
+               mk_parent_dirs($ctx, $dst);
+       }
+
        print "Copying ${src} at r${rev} to ${dst}...\n";
        $ctx->copy($src, $rev, $dst)
                unless $_dry_run;
@@ -1179,6 +1185,20 @@ sub cmd_branch {
        $gs->fetch_all;
 }
 
+sub mk_parent_dirs {
+       my $ctx = shift;
+       my $parent = shift;
+       $parent =~ s/\/[^\/]*$//;
+
+       if (!eval{$ctx->ls($parent, 'HEAD', 0)}) {
+               mk_parent_dirs($ctx, $parent);
+               print "Creating parent folder ${parent} ...\n";
+               $ctx->mkdir($parent)
+                       unless $_dry_run;
+       }
+
+}
+
 sub cmd_find_rev {
        my $revision_or_hash = shift or die "SVN or git revision required ",
                                            "as a command-line argument\n";
diff --git a/t/t9167-git-svn-cmd-branch-subproject.sh 
b/t/t9167-git-svn-cmd-branch-subproject.sh
new file mode 100755
index 0000000..9cb891b
--- /dev/null
+++ b/t/t9167-git-svn-cmd-branch-subproject.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+#
+# Copyright (c) 2013 Tobias Schulte
+#
+
+test_description='git svn branch for subproject clones'
+. ./lib-git-svn.sh
+
+test_expect_success 'initialize svnrepo' '
+    mkdir import &&
+    (
+        (cd import &&
+        mkdir -p trunk/project branches tags &&
+        (cd trunk/project &&
+        echo foo > foo
+        ) &&
+        svn_cmd import -m "import for git-svn" . "$svnrepo" >/dev/null
+        ) &&
+        rm -rf import &&
+        svn_cmd co "$svnrepo"/trunk/project trunk/project &&
+        (cd trunk/project &&
+        echo bar >> foo &&
+        svn_cmd ci -m "updated trunk"
+        ) &&
+        rm -rf trunk
+    )
+'
+
+test_expect_success 'import into git' '
+    git svn init --trunk=trunk/project --branches=branches/*/project 
--tags=tags/*/project "$svnrepo" &&
+    git svn fetch &&
+    git checkout remotes/trunk
+'
+
+test_expect_success 'git svn branch tests' '
+    test_must_fail git svn branch a &&
+    git svn branch --parents a &&
+    test_must_fail git svn branch -t tag1 &&
+    git svn branch --parents -t tag1 &&
+    test_must_fail git svn branch --tag tag2 &&
+    git svn branch --parents --tag tag2 &&
+    test_must_fail git svn tag tag3 &&
+    git svn tag --parents tag3
+'
+
+test_done
-- 
1.7.9.5

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