git-svnimport.perl: fix for 'arg list too long...'

This fixes 'arg list too long..' problem with git-ls-files.

Note that second arg list separation loop (with 'git-update-index') is
needed since git-ls-files arguments can be directories.

Signed-off-by: Sasha Khapyorsky <sashak@voltaire.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/git-svnimport.perl b/git-svnimport.perl
index 6e3a44a..b6799d8 100755 (executable)
--- a/git-svnimport.perl
+++ b/git-svnimport.perl
@@ -546,23 +546,30 @@ sub commit {
                        }
                }
 
-               if(@old) {
-                       open my $F, "-|", "git-ls-files", "-z", @old or die $!;
-                       @old = ();
+               while(@old) {
+                       my @o1;
+                       if(@old > 55) {
+                               @o1 = splice(@old,0,50);
+                       } else {
+                               @o1 = @old;
+                               @old = ();
+                       }
+                       open my $F, "-|", "git-ls-files", "-z", @o1 or die $!;
+                       @o1 = ();
                        local $/ = "\0";
                        while(<$F>) {
                                chomp;
-                               push(@old,$_);
+                               push(@o1,$_);
                        }
                        close($F);
 
-                       while(@old) {
+                       while(@o1) {
                                my @o2;
-                               if(@old > 55) {
-                                       @o2 = splice(@old,0,50);
+                               if(@o1 > 55) {
+                                       @o2 = splice(@o1,0,50);
                                } else {
-                                       @o2 = @old;
-                                       @old = ();
+                                       @o2 = @o1;
+                                       @o1 = ();
                                }
                                system("git-update-index","--force-remove","--",@o2);
                                die "Cannot remove files: $?\n" if $?;