git-svn: avoid creating some small files

repo_path_split() is already pretty fast, and is already
optimized via caching.

We also don't need to create an exclude file if we're
relying on the SVN libraries.

Signed-off-by: Eric Wong <normalperson@yhbt.net>

diff --git a/contrib/git-svn/git-svn.perl b/contrib/git-svn/git-svn.perl
index 884969e..88af9c5 100755 (executable)
--- a/contrib/git-svn/git-svn.perl
+++ b/contrib/git-svn/git-svn.perl
@@ -1005,12 +1005,6 @@ sub setup_git_svn {
        close $fh;
        s_to_file($SVN_URL,"$GIT_SVN_DIR/info/url");
 
-       open my $fd, '>>', "$GIT_SVN_DIR/info/exclude" or croak $!;
-       print $fd '.svn',"\n";
-       close $fd or croak $!;
-       my ($url, $path) = repo_path_split($SVN_URL);
-       s_to_file($url, "$GIT_SVN_DIR/info/repo_url");
-       s_to_file($path, "$GIT_SVN_DIR/info/repo_path");
 }
 
 sub assert_svn_wc_clean {
@@ -1649,6 +1643,12 @@ sub do_update_index {
 
 sub index_changes {
        return if $_use_lib;
+
+       if (!-f "$GIT_SVN_DIR/info/exclude") {
+               open my $fd, '>>', "$GIT_SVN_DIR/info/exclude" or croak $!;
+               print $fd '.svn',"\n";
+               close $fd or croak $!;
+       }
        my $no_text_base = shift;
        do_update_index([qw/git-diff-files --name-only -z/],
                        'remove',
@@ -2018,9 +2018,6 @@ sub migration_check {
                my $dn = dirname("$GIT_DIR/svn/$x");
                mkpath([$dn]) unless -d $dn;
                rename "$GIT_DIR/$x", "$GIT_DIR/svn/$x" or croak "$!: $x";
-               my ($url, $path) = repo_path_split($u);
-               s_to_file($url, "$GIT_DIR/svn/$x/info/repo_url");
-               s_to_file($path, "$GIT_DIR/svn/$x/info/repo_path");
        }
        migrate_revdb() if (-d $GIT_SVN_DIR && !-w $REVDB);
        print "Done upgrading.\n";
@@ -2138,15 +2135,8 @@ sub write_grafts {
 sub read_url_paths {
        my $l_map = {};
        git_svn_each(sub { my $x = shift;
-                       my $u = file_to_s("$GIT_DIR/svn/$x/info/repo_url");
-                       my $p = file_to_s("$GIT_DIR/svn/$x/info/repo_path");
-                       # we hate trailing slashes
-                       if ($u =~ s#(?:^\/+|\/+$)##g) {
-                               s_to_file($u,"$GIT_DIR/svn/$x/info/repo_url");
-                       }
-                       if ($p =~ s#(?:^\/+|\/+$)##g) {
-                               s_to_file($p,"$GIT_DIR/svn/$x/info/repo_path");
-                       }
+                       my $url = file_to_s("$GIT_DIR/svn/$x/info/url");
+                       my ($u, $p) = repo_path_split($url);
                        $l_map->{$u}->{$p} = $x;
                        });
        return $l_map;