1 files changed, 79 insertions, 0 deletions
diff --git a/z-distfiles/scripts-gw/SVN-dump b/z-distfiles/scripts-gw/SVN-dump
new file mode 100755
index 0000000..a812774
--- /dev/null
+++ b/z-distfiles/scripts-gw/SVN-dump
@@ -0,0 +1,79 @@
+#!/usr/bin/perl -w
+
+use strict;
+
+my $repos_path  = $ARGV[0];
+my $dumpfile    = $ARGV[1];
+my $type        = $ARGV[2];
+
+my $bin_svnadmin = `which svnadmin`;
+my $bin_svnlook  = `which svnlook`;
+my $bin_bz2      = `which bzip2`;
+
+$bin_svnlook  =~ s/\n//;
+$bin_svnadmin =~ s/\n//;
+$bin_bz2      =~ s/\n//;
+
+if ($bin_svnadmin eq "") {$bin_svnadmin = "/usr/bin/svnadmin"};
+if ($bin_svnlook  eq "") {$bin_svnlook  = "/usr/bin/svnlook"};
+if ($bin_bz2      eq "") {$bin_bz2      = "/bin/bzip2"};
+
+# Figure out the starting revision. Use 0 if we cannot read the
+# last-dumped file, else use the revision in that file incremented
+# by 1.
+my $new_start = 0;
+if (open LASTDUMPED, "$dumpfile.last")
+{
+    my $line = <LASTDUMPED>;
+    if (defined $line and $line =~ /^(\d+)/)
+    {
+        $new_start = $1 + 1;
+    }
+    close LASTDUMPED;
+}
+
+# Query the youngest revision in the repos.
+my $youngest = `$bin_svnlook youngest $repos_path`;
+defined $youngest && $youngest =~ /^\d+$/
+    or die "$0: 'svnlook youngest $repos_path' cannot get youngest revision.\n";
+chomp $youngest;
+
+if ($type eq "incremental")
+{
+    if ($new_start > $youngest) 
+    {
+        print "Nothing to do!\n";
+    } else {
+        ## Do the backup.
+        system("$bin_svnadmin dump $repos_path --revision $new_start:$youngest --incremental >> $dumpfile.tmp") == 0
+            or die "$0: svnadmin dump to '$dumpfile.tmp' failed.\n";
+
+        # Store a new last-dumped revision.
+        open LASTDUMPED, "> $dumpfile.last.tmp"
+            or die "$0: cannot open '$dumpfile.last.tmp' for writing: $!\n";
+        print LASTDUMPED "$youngest\n";
+        close LASTDUMPED
+            or die "$0: error in closing '$dumpfile.last.tmp' for writing: $!\n";
+
+        # Rename to final locations.
+        rename("$dumpfile.tmp", "$dumpfile.$new_start.$youngest")
+            or die "$0: cannot rename '$dumpfile.tmp' to '$dumpfile': $!\n";
+
+        rename("$dumpfile.last.tmp", "$dumpfile.last")
+            or die "$0: cannot rename '$dumpfile.last.tmp' to '$dumpfile.last': $!\n";
+
+        system("$bin_bz2 $dumpfile.$new_start.$youngest") == 0
+            or die "$0: compressing dump file $dumpfile.$new_start.$youngest failed.\n";
+    }
+} else {
+    
+    system("$bin_svnadmin dump $repos_path >> $dumpfile.full.tmp") == 0
+        or die "$0: svnadmin dump to '$dumpfile.tmp' failed.\n";
+    
+    rename("$dumpfile.full.tmp", "$dumpfile.full")
+        or die "$0: cannot rename '$dumpfile.full.tmp' to '$dumpfile.full': $!\n";
+    
+    system("$bin_bz2 -f $dumpfile.full") == 0
+        or die "$0: compressing dump file $dumpfile.full failed.\n";
+}
+# All done!