git-svn: add ability to specify --commit-url for dcommit

This allows one to use public svn:// URLs for fetch and
svn+ssh:// URLs for committing (without using the complicated
rewriteRoot option, reimporting or git-filter-branch).

Using this can also help avoid unnecessary server
authentication/encryption overhead on busy SVN servers.

Along with the new --revision option, this can also be allowed
to override the branch detection in dcommit, too.  This is
potentially dangerous and not recommended!  (And also purposely
undocumented, but the loaded gun is there in case somebody
wants to make it safe).

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/git-svn.txt b/Documentation/git-svn.txt
index 773ae9654b71304b969d421607b77819c95d4cca..1e644ca6dc8c42be81f52243a1af992c9d56f21c 100644 (file)
--- a/Documentation/git-svn.txt
+++ b/Documentation/git-svn.txt
@@ -138,6 +138,15 @@ and have no uncommitted changes.
 +
 --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.
+
+       Using this option for any other purpose (don't ask)
+       is very strongly discouraged.
 --
 
 'log'::

diff --git a/git-svn.perl b/git-svn.perl
index df0ed9027df2c3b8b8f9d7f4f4046f3a0b1ae7f1..06a82c80cec51ce53fd0c978f016861afc8de9fd 100755 (executable)
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -66,7 +66,7 @@ my ($_stdin, $_help, $_edit,
        $_version, $_fetch_all, $_no_rebase,
        $_merge, $_strategy, $_dry_run, $_local,
        $_prefix, $_no_checkout, $_url, $_verbose,
-       $_git_format);
+       $_git_format, $_commit_url);
 $Git::SVN::_follow_parent = 1;
 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
                     'config-dir=s' => \$Git::SVN::Ra::config_dir,
@@ -127,6 +127,8 @@ my %cmd = (
                          'verbose|v' => \$_verbose,
                          'dry-run|n' => \$_dry_run,
                          'fetch-all|all' => \$_fetch_all,
+                         'commit-url=s' => \$_commit_url,
+                         'revision|r=i' => \$_revision,
                          'no-rebase' => \$_no_rebase,
                        %cmt_opts, %fc_opts } ],
        'set-tree' => [ \&cmd_set_tree,
@@ -416,6 +418,8 @@ sub cmd_dcommit {
        $head ||= 'HEAD';
        my @refs;
        my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
+       $url = $_commit_url if defined $_commit_url;
+       my $last_rev = $_revision if defined $_revision;
        if ($url) {
                print "Committing to $url ...\n";
        }
@@ -423,7 +427,6 @@ sub cmd_dcommit {
                die "Unable to determine upstream SVN information from ",
                    "$head history.\nPerhaps the repository is empty.";
        }
-       my $last_rev;
        my ($linear_refs, $parents) = linearize_history($gs, \@refs);
        if ($_no_rebase && scalar(@$linear_refs) > 1) {
                warn "Attempting to commit more than one change while ",
@@ -446,7 +449,7 @@ sub cmd_dcommit {
                        my $cmt_rev;
                        my %ed_opts = ( r => $last_rev,
                                        log => get_commit_entry($d)->{log},
-                                       ra => Git::SVN::Ra->new($gs->full_url),
+                                       ra => Git::SVN::Ra->new($url),
                                        config => SVN::Core::config_get_config(
                                                $Git::SVN::Ra::config_dir
                                        ),