git-svn now reads settings even if called in subdirectory

Previously, git-svn first read the .git/config file for settings as if
current working directory was the repository top-directory, and after
that made sure to cd into top-directory.  The result was a silent
failur to read configuration settings.  This patch changes the order
these two things are done.
Signed-off-by: NGustaf Hendeby <hendeby@isy.liu.se>
Acked-by: NEric Wong <normalperson@yhbt.net>

git-svn.perl

@@ -193,23 +193,6 @@ BEGIN
 	}
 };
 
-my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
-
-read_repo_config(\%opts);
-Getopt::Long::Configure('pass_through') if ($cmd && $cmd eq 'log');
-my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
-                    'minimize-connections' => \$Git::SVN::Migration::_minimize,
-                    'id|i=s' => \$Git::SVN::default_ref_id,
-                    'svn-remote|remote|R=s' => sub {
-                       $Git::SVN::no_reuse_existing = 1;
-                       $Git::SVN::default_repo_id = $_[1] });
-exit 1 if (!$rv && $cmd && $cmd ne 'log');
-
-usage(0) if $_help;
-version() if $_version;
-usage(1) unless defined $cmd;
-load_authors() if $_authors;
-
 # make sure we're always running
 unless ($cmd =~ /(?:clone|init|multi-init)$/) {
 	unless (-d $ENV{GIT_DIR}) {
@@ -231,6 +214,24 @@ BEGIN
 		$ENV{GIT_DIR} = $git_dir;
 	}
 }
+
+my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
+
+read_repo_config(\%opts);
+Getopt::Long::Configure('pass_through') if ($cmd && $cmd eq 'log');
+my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
+                    'minimize-connections' => \$Git::SVN::Migration::_minimize,
+                    'id|i=s' => \$Git::SVN::default_ref_id,
+                    'svn-remote|remote|R=s' => sub {
+                       $Git::SVN::no_reuse_existing = 1;
+                       $Git::SVN::default_repo_id = $_[1] });
+exit 1 if (!$rv && $cmd && $cmd ne 'log');
+
+usage(0) if $_help;
+version() if $_version;
+usage(1) unless defined $cmd;
+load_authors() if $_authors;
+
 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
 	Git::SVN::Migration::migration_check();
 }